Communication framework implementation method for network programming and framework

Abstract

The invention discloses a communication framework implementation method for network programming and a framework, and belongs to the technical field of computer networks. The invention relates to a network programming framework based on Java.net.Socket and an implementation method thereof, and the communication framework obviously improves the data transmission efficiency, reduces the bandwidth occupation and reduces the message delay by optimizing a data transmission protocol and introducing fragmented transmission and self-adaptive data transmission algorithms. Meanwhile, an efficient connection management mechanism, a heartbeat packet technology and a stable connection maintenance strategy are integrated, and the real-time performance and stability between the client and the server are ensured. In addition, the framework also enhances the data security, supports encryption, decryption and identity verification functions, and ensures the privacy and integrity of the data in the transmission process. Through various communication interface designs (such as text, picture, audio, video and file transmission), the framework meets diversified business requirements, and the development efficiency and the code quality are improved.

Description

Technical Field

[0001] The present application relates to the field of computer network technology, and in particular to a communication framework implementation method and framework for network programming. Background Art

[0002] In the field of computer network technology, the network communication framework is a key component for realizing information transmission, and its performance and stability directly affect the quality and efficiency of network communication.

[0003] However, in the related technologies, the network communication framework has some deficiencies and defects that affect the quality of network communication. First, in terms of data transmission, the existing framework often adopts a more traditional transmission protocol, resulting in low data transmission efficiency and unable to meet the needs of high-speed network environments. Secondly, in terms of connection management, the existing framework lacks a stable and reliable connection maintenance mechanism, resulting in frequent interruptions or instability of the connection, which seriously affects the user experience. In addition, in terms of file transfer, the existing framework is difficult to recover once an interruption occurs during the file transfer process. And, in terms of business control, the existing framework lacks flexibility and scalability and cannot meet the diverse communication needs of users.

[0004] In computer network programming, Socket is a basic communication mechanism that allows data to be transferred between a client and a server. Java is a widely used programming language, and its Java.net.Socket package provides a rich API for implementing TCP / IP protocol communications. However, when these APIs are used directly for network communication development, complex issues such as connection management, data transmission, and exception handling may arise. Therefore, it is necessary to propose a new communication framework solution to solve these problems in the prior art. The present invention aims to build an efficient communication framework based on Java.net.Socket to simplify the development process of network communication and improve development efficiency and code quality. Summary of the invention

[0005] The embodiments of the present application provide a method and framework for implementing a communication framework for network programming to solve the above-mentioned problems.

[0006] In one aspect, a communication framework for network programming is provided, wherein the communication framework adopts the transport layer and application layer in the TCP / IP model;

[0007] The business control module of the application layer is used to control the business process and business logic within the application program;

[0008] The communication module of the application layer is used to implement the communication logic and protocol between the client and the server through the Socket socket;

[0009] The communication interface design of the application layer provides data exchange and communication between the application programs or between the application program and the operating system;

[0010] In the data transmission protocol of the transport layer, the adopted data transmission format includes a relative timestamp, an identifier and a checksum, and the data transmission format adopts a binary serialization framework;

[0011] In the connection management mechanism of the transport layer, the sending interval and receiving timeout of the heartbeat packet are agreed between the server and the client;

[0012] In the transmission protocol of the transport layer, a fragmented transmission method is adopted to transmit large data in fragments, and the fragmented data packets are determined according to the maximum transmission unit limits of different network segments.

[0013] Optionally, the application layer includes a secure data transmission mechanism for implementing encryption, decryption and identity authentication of the application layer.

[0014] Optionally, the application layer includes a logging and monitoring module for recording the running status of the application and monitoring abnormal behavior.

[0015] Optionally, the application layer is provided with a check code verification mechanism for assisting the secure data transmission mechanism in performing check code verification of data.

[0016] Optionally, the checksum verification mechanism is used to perform hash calculation on each file segment before segment transmission to generate a unique checksum for each segment;

[0017] It is also used for the receiving end to perform hash calculation after receiving each fragment, generate the verification code of the received fragment, and compare it with the verification code provided by the sending end;

[0018] It is also used to check for code mismatches, by which the receiving end requests the sending end to retransmit the segment until a complete and accurate segment is successfully received.

[0019] Optionally, in the application layer, the communication interface design includes:

[0020] Text communication interface, including normal text and rich text, and used to provide sendMessage(text) function and receiveMessage(message) function;

[0021] Image communication interface, used for users to upload, send and receive images, and provides sendImage(imagePath) function and receiveImage(imageData) function, where imagePath is the local image path and imageData is the received image data;

[0022] Audio communication interface, used to support audio recording, sending, receiving and audio playback, and provides recordAudio(filePath) function, sendAudio(audioData) function and playAudio(audioPath) function. Among them, recordAudio is used to record audio and save it to the specified path, sendAudio is used to send audio data, and playAudio is used to play the received audio;

[0023] Video communication interface, supports video recording, sending, receiving and real-time playback (such as video conferencing). Provides functions such as recordVideo(filePath), sendVideo(videoData), receiveVideoStream(stream) and playVideo(videoPath). recordVideo is used to record video, sendVideo sends video files, receiveVideoStream receives video streams (for real-time playback), and playVideo is used to play received video files;

[0024] The file transfer interface supports uploading, sending and receiving files, and provides sendFile(filePath,fileInfo) function and receiveFile(fileData,fileInfo) function, where filePath is the local file path, fileInfo contains file information, and fileData is the received file data.

[0025] Optionally, the communication interface is designed to adopt an instant messaging communication method, including implementing point-to-point or group chat instant messaging sending and receiving;

[0026] Based on the text communication interface, picture communication interface, audio communication interface, video communication interface and file transfer interface, the communication interface design also adds message type identification and recipient information.

[0027] Optionally, in the transmission protocol of the transport layer, the fragment transmission mode includes:

[0028] A method of splitting a large file into multiple small file segments for transmission;

[0029] Allows the receiver to receive file segments on demand and supports breakpoint-resume uploads.

[0030] Optionally, an adaptive data transmission algorithm is introduced into the data transmission protocol of the transport layer, and the adaptive data transmission algorithm is used to dynamically adjust the transmission strategy according to the real-time network status.

[0031] On the other hand, a method for implementing a communication framework for network programming is provided, the method being used for the communication framework for network programming described above, the method comprising:

[0032] In the application layer, for the server side, a ServerSocket object is created, the ServerSocket object is used to listen to a designated port and wait for a connection request from a client; in response to receiving a connection request from the client, a new processing thread is created; and the connection request is processed by the new processing thread;

[0033] In the application layer, for the client, a Socket object is created and connected to a designated port on the server; data transmission and communication are performed with the server through input and output streams, and at the same time, the data and response returned by the server are processed.

[0034] On the other hand, a computer-readable storage medium is provided, wherein the storage medium stores at least one instruction, and the at least one instruction is used to be executed by a processor to implement the large language model alignment method based on decoding probability correction as described in the above aspects.

[0035] On the other hand, a computer program product is also provided, which stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the large language model alignment method based on decoding probability correction described in the above aspect.

[0036] The present application discloses a communication framework for network programming, which significantly improves data transmission efficiency, reduces bandwidth occupancy, and reduces message delay by optimizing data transmission protocols, introducing fragmented transmission and adaptive data transmission algorithms. At the same time, it integrates efficient connection management mechanisms, heartbeat packet technology, and stable connection maintenance strategies to ensure real-time and stability between clients and servers. In addition, the framework also enhances data security, supports encryption, decryption, and identity authentication functions, and ensures the privacy and integrity of data during transmission. Through a variety of communication interface designs (such as text, picture, audio, video, and file transfer), the framework meets diverse business needs and improves development efficiency and code quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1The corresponding relationship diagram between the communication framework for network programming of the present application and the TCP / IP protocol is shown;

[0038] Figure 2 A schematic diagram of a communication framework structure for network programming provided by an exemplary embodiment of the present application is shown;

[0039] Figure 3 A schematic diagram of a communication framework structure for network programming provided by another exemplary embodiment of the present application is shown. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0041] The term "multiple" as used herein refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0042] Before each embodiment, first of all, a brief description is given to the Socket involved in the background of the invention. In computer network programming, Socket is a basic communication mechanism that allows data to be transmitted between a client and a server. Java, as a widely used programming language, has a Java.net.Socket package that provides a rich API for implementing TCP / IP protocol communications. However, when these APIs are used directly for network communication development, there may be complexities in aspects such as connection management, data transmission, and exception handling. Therefore, the present invention aims to build an efficient communication framework based on Java.net.Socket to simplify the development process of network communication and improve development efficiency and code quality.

[0043] Example 1

[0044] This application provides a communication framework for network programming, such as Figure 1 As shown, it shows the correspondence between the present application and the TCP / IP protocol. It can be seen that the communication framework adopts the transport layer and application layer in the TCP / IP model.

[0045] In addition, if it is a layered protocol correspondence based on OSI, the application layer, presentation layer, session layer and transport layer are involved. In this application, the TCP / IP model is used as an example for explanation.

[0046] Figure 2A schematic diagram of the communication framework structure for network programming provided by an exemplary embodiment of the present application is shown. The business control module of the application layer is used to control the business process and business logic within the application program. The business control module is one of the core components in the system architecture, and it undertakes the important task of managing, coordinating and optimizing business logic. By providing a highly flexible business control interface, the module not only supports users to customize and expand business logic according to actual needs, but also ensures the versatility, scalability and compatibility of the system, and can achieve the following functions.

[0047] ① Flexible business control interface. These interfaces are designed to be simple and powerful, aiming to meet the diverse business needs of users. Through these interfaces, users can easily configure and customize the system to implement specific business logic and functions. Whether it is simple message processing or complex user management and group management, the business control interface can provide comprehensive support. This flexibility is not only reflected in the diversity of interfaces, but also in the scalability of interfaces. As business needs continue to change, users can adapt to new business scenarios at any time by adding new interfaces or modifying existing interfaces. This dynamic adjustment capability enables the business control module to always keep pace with business needs and provide users with continuously optimized services.

[0048] ② Multi-function support. The interface of the business control module covers multiple functions, including but not limited to message processing, user management and group management. These functions together constitute the business core of the system and provide users with a wealth of business options.

[0049] ③Message processing. The interface supports operations such as receiving, sending, storing and querying messages. Users can customize the message processing logic according to their business needs, such as message filtering, encryption and decryption, and priority sorting.

[0050] ④ User management. The interface provides functions for adding, deleting, modifying and checking user information, as well as management and verification mechanisms for user permissions. Through these interfaces, users can flexibly manage user accounts to ensure the security and stability of the system.

[0051] ⑤ Group management. The interface supports operations such as group creation, disbanding, member management, and message broadcasting. These functions provide users with a convenient way of group communication, which helps to improve the efficiency and effectiveness of team collaboration.

[0052] ⑥ Scalability and compatibility. The scalability and compatibility of the system are fully considered. As business needs continue to grow and change, new functions or modules can be added to the system at any time without large-scale modification or reconstruction of the existing system.

[0053] ⑦ The business control module also provides interfaces and protocols for integration with other systems. This allows users to seamlessly connect the business control module with other systems (such as databases, message queues, third-party services, etc.) to achieve data sharing and process collaboration. This compatibility not only improves the flexibility and scalability of the system, but also provides users with more abundant business options and combinations.

[0054] It can be seen that the business control module provides users with a comprehensive, efficient and customizable business management solution by providing a flexible business control interface, multi-function support, and scalability and compatibility design. In future development, the functions and performance of the business control module will continue to be optimized and improved to meet the growing business needs of users.

[0055] In the communication framework, the communication module of the application layer is used to implement the communication logic and protocol between the client and the server through the Socket socket;

[0056] The communication interface design of the application layer provides data exchange and communication between the application programs or between the application program and the operating system;

[0057] In the data transmission protocol of the transport layer, the data transmission format adopted includes a relative timestamp, an identifier and a checksum, and the data transmission format adopts a binary serialization framework. Specifically, the data transmission protocol is optimized, which is specifically reflected in the following aspects.

[0058] ① Simplify the packet header information. The original packet header may contain lengthy fields, such as a complete timestamp, complete source and destination address information, etc.

[0059] After optimization, relative timestamps are used or only key time information (such as hours and minutes) are retained to reduce the byte length of the timestamp; a short identifier (ID) is used instead of complete address information, and parsed between the client and the server through a predefined mapping table; a more efficient verification algorithm is selected, such as CRC32 instead of MD5, to reduce the bytes occupied by the checksum.

[0060] For example, the header information before optimization includes complete timestamp (19 bytes), complete source address (255 bytes), complete destination address (255 bytes), checksum (16 bytes), a total of 545 bytes. The header information after optimization includes relative timestamp (4 bytes), address ID (4 bytes each), CRC32 checksum (4 bytes), a total of 16 bytes.

[0061] ②Optimize the size of data packets. Use efficient lossless compression algorithms such as LZ4 and Snappy to compress the data packet content. Depending on the data type and content, the compression rate can reach 20%-80%, significantly reducing the amount of data transmission. The compression / decompression speed reaches 850 / 2600MB / s.

[0062] ③Optimize data format. Use efficient binary serialization frameworks such as Protocol Buffers or MessagePack to replace traditional JSON or XML serialization. Binary serialization is usually smaller in size than text serialization (such as JSON) and has a faster parsing speed. For example, for the same data structure, the data serialized by Protocol Buffers may be 3-10 times smaller than that of JSON.

[0063] In general, the transmission efficiency is significantly improved: before optimization, due to the lengthy header information and lack of compression, it may take a long time to transmit 1MB of data (assuming the network conditions remain unchanged). After optimization, due to the simplification of header information and data compression, the transmission time can be significantly reduced, and the specific reduction ratio depends on the data characteristics and compression efficiency.

[0064] Reduced bandwidth usage: Before optimization, network bandwidth utilization was low and a large amount of bandwidth was occupied by redundant information. After optimization, bandwidth utilization is improved, which can support more concurrent connections or transmit larger amounts of data.

[0065] Reduced message latency: Before optimization, communication latency was high due to large data volumes and long parsing time. After optimization, data parsing and transmission speeds are accelerated and latency is significantly reduced due to data compression and efficient serialization methods.

[0066] In the connection management mechanism of the transport layer, the sending interval and receiving timeout of the heartbeat packet are agreed between the server and the client. The mechanism of fast connection establishment, stable connection maintenance and timely disconnection is integrated, and the heartbeat packet technology is used to regularly detect the connection status, thereby ensuring the real-time and stability of the communication link.

[0067] ① Fast connection establishment. The server adopts an efficient connection processing strategy. When the client initiates a connection request, the server immediately allocates resources and processes the connection request to ensure that a stable TCP connection is established in the shortest time. In addition, the server also has concurrent processing capabilities and can process connection requests from multiple clients at the same time, avoiding bottlenecks in connection establishment.

[0068] ②Maintain stable connection.

[0069] Flow control: Through the TCP sliding window mechanism, the sending rate is dynamically adjusted according to network congestion to avoid data loss and connection interruption.

[0070] Timeout retransmission: For data packets that have not received confirmation, the server will set a timeout timer and retransmit the data packet after the timeout to ensure reliable data transmission.

[0071] Error detection and recovery: Errors in data transmission are detected and corrected in a timely manner through error detection mechanisms such as checksum or CRC. For errors that cannot be corrected, the server will take appropriate recovery measures, such as requesting the client to resend the data packet.

[0072] ③Disconnect in time.

[0073] When the client or server needs to disconnect, it will send a disconnect request and wait for the other party to confirm. Once the confirmation message is received, both parties will release the resources occupied by the connection to ensure the effective use of resources. In addition, the server also has a connection timeout detection mechanism. For connections that have been inactive for a long time, the server will actively disconnect to avoid wasting resources.

[0074] ④Heartbeat packet technology.

[0075] The server and the client will agree on the sending interval and receiving timeout of the heartbeat packet. After the connection is established, both parties will send heartbeat packets and heartbeat packet response mechanisms at the agreed intervals and monitor the response of the other party. If the heartbeat packet or confirmation message of the other party is not received within the agreed timeout (the timeout varies from 1 to 30 seconds depending on different scenarios), it is considered that the connection has been disconnected or there is a fault. At this time, both parties will take appropriate measures to handle the disconnection, such as reconnecting or notifying the user.

[0076] By integrating mechanisms such as fast connection establishment, stable connection maintenance, timely disconnection, and heartbeat packet technology, this solution can ensure that the communication link between the client and the server is highly real-time and stable. This provides users with a better user experience and ensures the reliability and continuity of data transmission.

[0077] In the transmission protocol of the transport layer, a fragmented transmission method is adopted to transmit large data in fragments, and the fragmented data packets are determined according to the maximum transmission unit limits of different network segments.

[0078] In addition, in order to make the framework more flexible and extensible, the framework can also be designed to be modular so that different applications can The application scenarios and requirements can be quickly adapted. For example, the communication protocol and service control module can be adapted to different network environments or Flexible expansion or replacement of application scenarios.

[0079] In addition, automatic monitoring and optimization can be achieved, such as designing a system monitoring and automatic optimization mechanism based on Indicators such as network load and bandwidth utilization automatically adjust data transmission strategies to maintain efficient and stable communication.

[0080] In addition, in network communication, how to ensure the high availability and disaster recovery capabilities of the system framework is crucial. On the basis of capacity, redundant design and data backup and recovery mechanism can also be added.

[0081] For example, load balancing and distributed architecture are used to ensure that the system can handle large-scale traffic and high concurrent requests. Single point of failure; such as designing a reliable backup and data recovery mechanism to ensure that data can be restored as quickly as possible in the event of a system failure In the framework design, this part can be used as one of the "connection management mechanism" and "data transmission protocol". options to further ensure high availability and recovery capabilities of the communication framework.

[0082] In addition, for the network communication framework, we should not only focus on technical implementation, but also consider the user experience. Based on the above content, this application also considers delay optimization and bandwidth management design. By designing a low-latency communication protocol, The use of efficient data transmission algorithms ensures that users can get faster responses. Furthermore, the intelligent bandwidth management machine This ensures that communication quality is optimal under different network conditions and avoids lag or interruption. The addition of the "Data Transfer Protocol" and "Connection Management Mechanism" sections improves the user experience of the communication framework, especially In a high-concurrency and complex network environment.

[0083] This communication framework significantly improves the performance of the communication protocol by optimizing the data transmission protocol, introducing fragmented transmission and adaptive data transmission algorithms. Improves data transmission efficiency, reduces bandwidth usage, and reduces message delays. At the same time, it integrates an efficient connection management mechanism The control, heartbeat packet technology and stable connection maintenance strategy ensure the real-time and stability between the client and the server. In addition, the framework also enhances data security, supports encryption, decryption and authentication functions, and ensures that data is protected during transmission. privacy and integrity. Through multiple communication interface designs (such as text, image, audio, video and file transfer), the framework It meets diverse business needs and improves development efficiency and code quality.

[0084] Example 2

[0085] Figure 3 A schematic diagram of a communication framework structure for network programming provided by another exemplary embodiment of the present application is shown, corresponding to Embodiments 2 to 5.

[0086] The application layer includes a secure data transmission mechanism for implementing encryption, decryption and identity authentication of the application layer.

[0087] During data transmission, ensuring data security is crucial. This solution introduces more stringent security mechanisms, such as SSL / TLS encrypted transmission, which becomes an effective means to protect user privacy and data security.

[0088] SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are protocols used to provide security in network communications. They protect data transmission through encryption, authentication, and integrity checking to prevent data from being eavesdropped, tampered with, or forged. SSL / TLS protocols are widely used in scenarios such as web browsing, email, file transfer, virtual private networks (VPN), and instant messaging.

[0089] ① Protocol selection: Choose TLS protocol, especially the latest version TLS1.3, as it provides higher security and performance. Avoid using older versions of SSL / TLS protocol that are known to have vulnerabilities.

[0090] ② Certificate management: Use digital certificates issued by trusted certificate authorities (CA). Regularly update and revoke expired or leaked certificates.

[0091] ③ Encryption algorithm and key management: Choose a strong encryption algorithm, such as AES-256, to ensure data confidentiality. Implement a key management strategy and regularly change keys to prevent key leaks.

[0092] ④ Perfect Forward Secrecy (PFS): Use a key exchange algorithm that supports PFS, such as DHE or ECDHE, to ensure that even if the session key is leaked, historical communication data cannot be decrypted.

[0093] ⑤Configuration and deployment: Correctly configure the SSL / TLS protocol on the server and client. Ensure that all related software, hardware, and middleware support SSL / TLS encrypted transmission.

[0094] Security audit and monitoring: Regularly conduct security audits on SSL / TLS configurations. Monitor the establishment, data transmission, and closing of SSL / TLS connections to ensure there are no abnormal behaviors.

[0095] By introducing SSL / TLS encrypted transmission, the security of data transmission can be significantly improved, protecting user privacy and data security. At the same time, it can also enhance users' trust in the system and improve the overall security of the system.

[0096] In addition, as data privacy and security issues become increasingly serious, it is very important to add security mechanisms. In addition to the above, Blockchain technology and privacy computing can also be added. Blockchain technology can be introduced into data transmission to ensure the privacy of data. Tamperability and transparency. Especially when sensitive information needs to be processed, blockchain can provide additional security. In addition, Combining privacy computing technology with the existing communication framework ensures that user privacy is protected during data transmission and will not be leaked. Disclose personal information.

[0097] Example 3

[0098] The application layer includes a logging and monitoring module for recording the running status of the application and monitoring abnormal behavior.

[0099] In the communication process, adding a logging and monitoring module is of great significance for real-time analysis of communication quality and subsequent performance optimization. Through logging and monitoring, this solution can timely discover and solve problems in the communication process and improve the stability and reliability of the system.

[0100] ①Log records.

[0101] Record logs at key points in the communication process, such as connection establishment, data transmission, error occurrence, etc. The log content should include key information such as timestamp, information of both parties in communication, amount of data transmitted, error code, etc. Use efficient log storage and retrieval mechanisms to ensure the availability and maintainability of logs.

[0102] ②Real-time monitoring.

[0103] Real-time monitoring of key indicators in the communication process, such as network latency, packet loss rate, error rate, etc. Use charts and alarm mechanisms to intuitively display monitoring results, and promptly discover and solve potential problems. Monitoring results should be able to be fed back to relevant personnel in real time so that timely measures can be taken.

[0104] ③Data analysis and performance optimization.

[0105] Analyze log data regularly to identify bottlenecks and problems in the communication process. Develop performance optimization plans based on the analysis results, such as adjusting network configuration, optimizing algorithms, etc. Continuously optimize the communication process to improve system stability and reliability.

[0106] ④Safety and compliance.

[0107] Ensure that the logging and monitoring process complies with relevant laws, regulations and industry standards. Desensitize sensitive information to protect user privacy and data security.

[0108] By adding logging and monitoring modules, communication quality can be analyzed in real time, and potential problems can be discovered and resolved in a timely manner. At the same time, it can also provide strong support for performance optimization and improve system stability and reliability. In addition, it also helps ensure system security and compliance, and protect user privacy and data security.

[0109] Example 4

[0110] In the application layer, the communication interface design includes,

[0111] Text communication interface, including normal text and rich text, and used to provide sendMessage(text) function and receiveMessage(message) function;

[0112] Image communication interface, used for users to upload, send and receive images, and provides sendImage(imagePath) function and receiveImage(imageData) function, where imagePath is the local image path and imageData is the received image data;

[0113] Audio communication interface, used to support audio recording, sending, receiving and audio playback, and provides recordAudio(filePath) function, sendAudio(audioData) function and playAudio(audioPath) function. Among them, recordAudio is used to record audio and save it to the specified path, sendAudio is used to send audio data, and playAudio is used to play the received audio;

[0114] Video communication interface, supports video recording, sending, receiving and real-time playback (such as video conferencing). Provides functions such as recordVideo(filePath), sendVideo(videoData), receiveVideoStream(stream) and playVideo(videoPath). recordVideo is used to record video, sendVideo sends video files, receiveVideoStream receives video streams (for real-time playback), and playVideo is used to play received video files;

[0115] The file transfer interface supports uploading, sending and receiving files, and provides sendFile(filePath,fileInfo) function and receiveFile(fileData,fileInfo) function, where filePath is the local file path, fileInfo contains file information, and fileData is the received file data.

[0116] Furthermore, the communication interface design adopts an instant messaging communication method, including the sending and receiving of instant messages for point-to-point or group chat;

[0117] Based on the text communication interface, picture communication interface, audio communication interface, video communication interface and file transfer interface, the communication interface design also adds message type identification and recipient information.

[0118] Example 5

[0119] In the transmission protocol of the transport layer, the fragment transmission mode includes:

[0120] A method of splitting a large file into multiple small file segments for transmission;

[0121] Allows the receiver to receive file segments on demand and supports breakpoint-resume uploads.

[0122] Furthermore, the transport layer is provided with a checksum verification mechanism to assist in the checksum verification of data during the fragment transmission.

[0123] The check code verification mechanism is used to perform hash calculation on each file segment before segment transmission to generate a unique check code for each segment; it is also used for the receiving end to perform hash calculation after receiving each segment, generate a check code for the received segment, and compare it with the check code provided by the sending end; it is also used for requesting the sending end to retransmit the segment through the receiving end if the check codes do not match, until the complete and accurate segment is successfully received.

[0124] The present invention innovatively adopts an efficient and reliable fragmentation transmission technology. This technology aims to solve many challenges faced in the traditional large file transmission process, such as long transmission time, transmission failure caused by unstable network, and difficulty in ensuring file integrity. Through the carefully designed fragmentation strategy and verification mechanism, the present invention not only significantly improves the flexibility and efficiency of transmission, but also ensures the integrity and accuracy of file transmission.

[0125] ① Improve transmission flexibility. The present invention splits a large file into multiple small file segments for transmission. This strategy greatly reduces the load of a single transmission, so that even in an environment with poor network conditions, the transmission can be completed through multiple attempts, thereby improving the overall transmission flexibility.

[0126] Fragmented transmission also allows the receiving end to receive file fragments on demand and supports breakpoint resume function. Even if an interruption occurs during the transmission process, the transmission can be continued from the last failed position without starting from the beginning.

[0127] ② Reduce the risk of transmission failure. After splitting a large file into small pieces, the amount of data in each piece is relatively small, making it easier to maintain transmission stability when the network fluctuates. Even if a piece fails to be transmitted, only the piece needs to be retransmitted without resending the entire file, which greatly reduces the risk of overall transmission failure.

[0128] ③ The checksum verification mechanism ensures file integrity. In order to ensure the integrity and accuracy of the file during transmission, the present invention introduces an advanced checksum verification mechanism:

[0129] ④Generate a checksum: Before sharding, perform a hash calculation (such as MD5, SHA-256, etc.) on each file shard to generate a unique checksum. This checksum serves as the "digital fingerprint" of the shard and is used to verify its integrity later.

[0130] Verification code verification: After receiving each fragment, the receiving end also performs hash calculation to generate the verification code of the received fragment and compares it with the verification code provided by the sending end. If the two are consistent, it means that the fragment has not been damaged or tampered with during the transmission process, and the file fragment is complete and accurate.

[0131] ⑤ Retransmission mechanism: If the checksum does not match, it indicates that there is a problem with the fragment during transmission. At this time, the receiving end will request the sending end to retransmit the fragment until the complete and accurate fragment is successfully received.

[0132] By combining the fragmentation transmission technology with the checksum verification mechanism, the present invention not only significantly improves the efficiency and success rate of large file transmission, but also ensures the integrity and accuracy of the file in a complex network environment. In addition, the technology also has good scalability and compatibility, and can adapt to the needs of file transmission of different scales and types, providing a more reliable and efficient solution for future large file transmission.

[0133] Example 6

[0134] An adaptive data transmission algorithm is introduced into the data transmission protocol of the transport layer, and the adaptive data transmission algorithm is used to dynamically adjust the transmission strategy according to the real-time network status.

[0135] Traditional data transmission algorithms often use fixed transmission strategies and parameters, which are difficult to adapt to changes in network conditions, resulting in low data transmission efficiency and even possible transmission interruptions. Therefore, this solution introduces an adaptive data transmission algorithm to dynamically adjust the transmission strategy according to the real-time network conditions, thereby improving data transmission efficiency and stability.

[0136] The core principle of the adaptive data transmission algorithm is to dynamically adjust the transmission parameters and strategies according to the real-time changes in network conditions to optimize data transmission performance. This includes adjusting the transmission window size, selecting different encoding schemes, optimizing data transmission paths, etc. By real-time monitoring of key indicators such as network bandwidth, latency, and packet loss rate, the algorithm can determine the quality of the network and adjust the transmission strategy accordingly to ensure efficient and stable data transmission.

[0137] ①Dynamically adjust the transmission window.

[0138] Solution description: Dynamically adjust the size of the transmission window according to the real-time changes in network bandwidth and latency. When the network bandwidth is sufficient and the latency is low, the transmission window can be appropriately increased to increase the data transmission rate; when the network bandwidth is limited or the latency is high, the transmission window can be reduced to avoid network congestion and data loss.

[0139] Implementation method: By monitoring changes in network bandwidth and delay, the optimal transmission window size can be calculated using an adaptive algorithm, and the transmission parameters can be updated in real time.

[0140] ②Choose a different encoding scheme.

[0141] Scheme description: Select different encoding schemes for data transmission according to network conditions and data types. For example, when bandwidth is limited, you can choose an encoding scheme with higher compression efficiency; when data transmission quality requirements are high, you can choose an encoding scheme with stronger error correction capabilities.

[0142] Implementation method: Multiple encoding schemes can be predefined, and the most appropriate encoding scheme can be selected for data transmission based on the real-time changes in network conditions and data types. At the same time, machine learning and other technologies can be used to optimize and predict the selection of encoding schemes.

[0143] ③Optimize data transmission path.

[0144] Solution description: Select the optimal data transmission path based on the network topology and real-time network status. By monitoring the transmission performance and stability of the network link in real time, the data transmission path can be dynamically adjusted to avoid network congestion and data loss.

[0145] Implementation method: Network topology perception and intelligent routing algorithms can be used to monitor the transmission performance and stability of network links in real time, and select the optimal data transmission path accordingly. At the same time, adaptive algorithms can be used to optimize and adjust routing strategies.

[0146] Example 7

[0147] In addition, the introduction of multi-threading and asynchronous processing mechanisms has become the key to improving the performance of data transmission and file transfer modules.

[0148] ①Application of multi-threading mechanism.

[0149] The multithreading mechanism allows multiple threads to run simultaneously, and each thread can execute tasks independently, thereby improving the concurrent processing capability of the system. In the data transfer and file transfer modules, the multithreading mechanism can be applied to the following aspects:

[0150] Parallel transmission: Divide large files or large amounts of data into multiple small blocks, and each thread is responsible for transmitting one or more small blocks. This can fully utilize network bandwidth and processor resources and increase transmission speed.

[0151] Connection management: On the server side, you can use multithreading to handle connection requests and data transmission from multiple clients. Each thread is responsible for one connection, thus preventing a single connection from blocking the entire server.

[0152] Task Scheduling: Manage the creation, execution, and destruction of threads through the thread pool. The thread pool can reuse threads, reduce the creation and destruction overhead of threads, and improve system performance.

[0153] ②Application of asynchronous processing mechanism.

[0154] The asynchronous processing mechanism allows tasks to be executed in the background without blocking the main thread. In the data transfer and file transfer modules, the asynchronous processing mechanism can be applied to the following aspects:

[0155] Non-blocking I / O: Use asynchronous I / O operations to read and write data, avoiding blocking threads during I / O operations. This can improve the system's responsiveness and throughput.

[0156] Event-driven: Various events in the data transmission and file transfer process are handled in an event-driven manner, such as connection establishment, data transmission completion, error occurrence, etc. This can simplify the code structure and improve the maintainability of the system.

[0157] Callback mechanism: After the asynchronous task is completed, the main thread or other tasks are notified through the callback mechanism for processing. This can achieve chain processing and process control of tasks.

[0158] ③Combination of multi-threading and asynchronous processing.

[0159] Multithreading and asynchronous processing mechanisms can be used together to further improve the performance of the data transmission and file transfer modules. For example, multithreading can be used to handle connection requests and data transmission from multiple clients, while asynchronous I / O operations can be used to read and write data. This can fully utilize network bandwidth and processor resources while avoiding blocking threads during I / O operations.

[0160] ④Implementation and optimization.

[0161] Reasonable task division: Divide the task into smaller subtasks and assign these subtasks to different threads for execution. This can improve parallelism and reduce the waiting time between threads.

[0162] Use thread pool: manage the creation and execution of threads through thread pool to avoid the overhead of frequent creation and destruction of threads.

[0163] Avoid thread contention: Reduce contention between threads by using locks, atomic operations, or lock-free data structures.

[0164] Optimizing algorithms and data structures: Optimizing algorithms and data structures can reduce the amount of computation and memory access times of threads, thereby improving multi-threaded performance.

[0165] Monitoring and tuning: By monitoring the system's performance indicators (such as CPU usage, memory usage, network bandwidth, etc.), performance bottlenecks can be discovered and optimized in a timely manner.

[0166] In summary, the introduction of multithreading and asynchronous processing mechanisms can significantly improve the performance of data transmission and file transfer modules in a high-concurrency environment. The performance of the system can be further optimized by reasonably dividing tasks, using thread pools, avoiding thread competition, optimizing algorithms and data structures, and monitoring and tuning.

[0167] In addition, a method for implementing a communication framework for network programming is also provided, the method being used for any of the above-mentioned communication frameworks for network programming, the method comprising:

[0168] In the application layer, for the server side, a ServerSocket object is created, the ServerSocket object is used to listen to a designated port and wait for a connection request from a client; in response to receiving a connection request from the client, a new processing thread is created; and the connection request is processed by the new processing thread;

[0169] In the application layer, for the client, a Socket object is created and connected to a designated port on the server; data transmission and communication are performed with the server through input and output streams, and at the same time, the data and response returned by the server are processed.

[0170] In addition, the present invention focuses on the design and implementation of a network programming framework based on the Java programming language. This field not only involves basic technologies such as network communication protocols, data transmission mechanisms, and connection management, but also covers multiple aspects such as the architecture design, performance optimization, and security assurance of the network communication framework. With the rapid development and popularization of the Internet, the network communication framework, as the cornerstone of information transmission, its performance and stability are crucial to ensuring the smooth conduct of network communication. Therefore, the invention has broad application prospects and important research value in the field of computer network technology.

[0171] An embodiment of the present application also provides a computer-readable medium, which stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the communication framework implementation method for network programming as described in the above embodiments.

[0172] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A communication framework for network programming, characterized in that: The communication framework adopts the transport layer and application layer in the TCP / IP model; The business control module of the application layer is used to control the business process and business logic within the application program; The communication module of the application layer is used to implement the communication logic and protocol between the client and the server through the Socket socket; The communication interface design of the application layer provides data exchange and communication between the application programs or between the application program and the operating system; In the data transmission protocol of the transport layer, the adopted data transmission format includes a relative timestamp, an identifier and a checksum, and the data transmission format adopts a binary serialization framework; In the connection management mechanism of the transport layer, the sending interval and receiving timeout of the heartbeat packet are agreed between the server and the client; In the transmission protocol of the transport layer, a fragmented transmission method is adopted to transmit large data in fragments, and the fragmented data packets are determined according to the maximum transmission unit limits of different network segments.

2. The communication framework for network programming according to claim 1, characterized in that: The application layer includes a secure data transmission mechanism for implementing encryption, decryption and identity authentication of the application layer.

3. The communication framework for network programming according to claim 1, characterized in that: The application layer includes a log recording and monitoring module for recording the running status of the application and monitoring abnormal behavior.

4. The communication framework for network programming according to claim 2, characterized in that: The application layer is provided with a check code verification mechanism for assisting the secure data transmission mechanism in performing check code verification of data.

5. The communication framework for network programming according to claim 4, characterized in that: The checksum verification mechanism is used to perform hash calculation on each file segment before segment transmission to generate a unique checksum for each segment; It is also used for the receiving end to perform hash calculation after receiving each fragment, generate the verification code of the received fragment, and compare it with the verification code provided by the sending end; It is also used to check for code mismatches, by which the receiving end requests the sending end to retransmit the segment until a complete and accurate segment is successfully received.

6. The communication framework for network programming according to claim 1, characterized in that: In the application layer, the communication interface design includes, Text communication interface, including normal text and rich text, and used to provide sendMessage(text) function and receiveMessage(message) function; Image communication interface, used for users to upload, send and receive images, and provides sendImage(imagePath) function and receiveImage(imageData) function, where imagePath is the local image path and imageData is the received image data; Audio communication interface, used to support audio recording, sending, receiving and audio playback, and provides recordAudio(filePath) function, sendAudio(audioData) function and playAudio(audioPath) function. Among them, recordAudio is used to record audio and save it to the specified path, sendAudio is used to send audio data, and playAudio is used to play the received audio; Video communication interface, supports video recording, sending, receiving and real-time playback (such as video conferencing). Provides functions such as recordVideo(filePath), sendVideo(videoData), receiveVideoStream(stream) and playVideo(videoPath). recordVideo is used to record video, sendVideo sends video files, receiveVideoStream receives video streams (for real-time playback), and playVideo is used to play received video files; The file transfer interface supports uploading, sending and receiving files, and provides sendFile(filePath,fileInfo) function and receiveFile(fileData,fileInfo) function, where filePath is the local file path, fileInfo contains file information, and fileData is the received file data.

7. The communication framework for network programming according to claim 6, characterized in that: The communication interface design adopts instant messaging communication mode, including the sending and receiving of instant messages for point-to-point or group chat; Based on the text communication interface, picture communication interface, audio communication interface, video communication interface and file transfer interface, the communication interface design also adds message type identification and recipient information.

8. The communication framework for network programming according to claim 1, characterized in that: In the transmission protocol of the transport layer, the fragment transmission mode includes: A method of splitting a large file into multiple small file segments for transmission; Allows the receiver to receive file segments on demand and supports breakpoint-resume uploads.

9. The communication framework for network programming according to claim 1, characterized in that: An adaptive data transmission algorithm is introduced into the data transmission protocol of the transport layer, and the adaptive data transmission algorithm is used to dynamically adjust the transmission strategy according to the real-time network status.

10. A method for implementing a communication framework for network programming, characterized in that: The method is used for the communication framework for network programming according to any one of claims 1 to 9, and the method comprises: In the application layer, for the server side, a ServerSocket object is created, the ServerSocket object is used to listen to a designated port and wait for a connection request from a client; in response to receiving a connection request from the client, a new processing thread is created; and the connection request is processed by the new processing thread; In the application layer, for the client, a Socket object is created and connected to a designated port on the server; data transmission and communication are performed with the server through input and output streams, and at the same time, the data and response returned by the server are processed.

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