Callback service implementation method based on Java and intranet penetration and related equipment

Through the callback service method of Java and intranet penetration, the problems of high requirements for client network environment and insufficient security in the existing technology are solved, and a callback service that simplifies development, enhances data security and stable is realized.

CN120378115APending Publication Date: 2025-07-25深圳市和讯华谷信息技术有限公司
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Patent Information

Application Number
CN202510462826.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

The existing callback service technical solutions have high requirements in the client network environment, pose risks of man-in-the-middle attacks and data tampering, and have high development complexity, high resource consumption, and high network stability requirements. They need to reconnect after disconnection.

Method used

The callback service method based on Java and intranet penetration is adopted. By defining the callback interface, building asynchronous operation classes, configuring the natapp client, performing HMAC-SHA256 signature verification, preprocessing the JSON data and persisting storage, combined with Spring Scheduler to generate analysis reports, realizing intranet penetration and security verification.

Benefits of technology

It improves the convenience of intranet penetration, simplifies the construction of development and testing environments, enhances data security and the stability of callback services, and reduces service interruptions caused by network problems.

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Abstract

The invention provides a secure callback service implementation method based on Java and intranet penetration. The method comprises the following steps: triggering a callback interface through HTTP / HTTPS; establishing an SSL (Secure Socket Layer) encrypted intranet penetration channel by utilizing a natapp to realize local service dynamic public network mapping; generating a request signature by adopting HMAC-SHA256, verifying the signature through an interceptor, and intercepting illegal access; performing timestamp standardization, redundant field filtering and Unicode character transcoding on the JSON data; mySQL sub-table storage is adapted by means of JPA annotation, and the read-write efficiency is improved in combination with second-level cache; and deploying a Spring Scheduler timed task to clean up expired data, and integrating POIs to generate an Excel analysis report containing a multi-dimensional chart. According to the scheme, the penetration technology and the asynchronous callback are integrated, and the network isolation limitation is eliminated; communication safety is guaranteed through signature verification and data cleaning, the resource utilization rate is improved by means of thread pool optimization and a timing mechanism, and system stability and data auditing performance in a high-concurrency scene are guaranteed.
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Description

Technical Field

[0001] The present invention relates to the technical field of message push, and in particular to a method for implementing a callback service based on Java and intranet penetration and related devices. Background Art

[0002] In the field of message push, the callback service is a key component, mainly used to implement real-time communication and event-driven interactions. The existing technical solutions for callback services mainly include callback services based on http / https, callback services based on WebSocket, and callback services based on message queues.

[0003] For the http / https callback service, the server mainly sends a post request to the client through the http / https protocol to transfer data to the callback url specified by the client. This solution has high requirements for the client's network environment, has risks of man-in-the-middle attacks or data tampering, and the client needs to implement an HTTP server, increasing the development complexity; the second one establishes a long connection through WebSocket, and the server can push data to the client in real time. The resource consumption of the server is large, and it has high requirements for the network stability of the client. After disconnection, it needs to reconnect; the third one has high requirements for the network stability of the client, and it needs to reconnect after disconnection. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a method for implementing a callback service based on Java and intranet penetration and related devices, aiming to improve the convenience of intranet penetration.

[0005] To solve the above technical problem, the technical solution adopted by the present invention is: a method for implementing a callback service based on Java and intranet penetration, including the following steps:

[0006] S10. Define a callback interface, create a Java interface containing an onResult method, and the onResult method is configured to receive an asynchronous operation result string parameter;

[0007] S20. Construct an asynchronous operation class, receive an instance of the callback interface through a constructor, and generate an independent thread to simulate HTTP / HTTPS network request operations. After the asynchronous operation is completed, call the onResult method of the callback interface to pass the result;

[0008] S30. Configure the natapp client, inject the authtoken into the local server and bind the local service port to the public network domain name to establish a two-way TCP long connection channel to achieve intranet penetration;

[0009] S40. Perform HMAC-SHA256 signature verification. After the client generates the request body digest, it attaches it to the request header. The server compares the signature's legality and triggers the error handling process;

[0010] S50. Perform preprocessing on the verified JSON data, including timestamp normalization format conversion and redundant field filtering;

[0011] S60. Persistently store the preprocessed data in the MySQL database and implement the mapping between the entity class and the database table fields through Spring Data JPA;

[0012] S70. Enable the Spring Scheduler timed task component, perform expired data cleaning operations at a preset period, and generate a multi-dimensional message delivery rate analysis report based on Apache POI.

[0013] Further, in step S30, the natapp client configuration specifically includes:

[0014] Declare the local service IP address and port number in the configuration file;

[0015] Establish a connection with the natapp server through an SSL / TLS encrypted channel;

[0016] Dynamically allocate a publicly accessible HTTPS domain name and port combination.

[0017] Further, step S40 specifically includes:

[0018] The client uses the pre-shared key to perform a hash operation on the request body to generate a 32-byte signature;

[0019] The server extracts the X-Signature field in the request header for bit-by-bit comparison;

[0020] When the verification fails, record the security event log and return a 401 unauthorized status code.

[0021] Further, the preprocessing operations in step S50 further include:

[0022] Use the Jackson library to parse the nested JSON data structure;

[0023] Convert the Unix timestamp to a preset format;

[0024] Use regular expressions to filter non-ASCII control characters.

[0025] Further, in step S60, the data storage adopts:

[0026] Define entity attributes such as message status, reception time, and message type in the JPA annotation way;

[0027] Establish a multi-table partition storage structure according to message classification;

[0028] Ensure ACID transaction characteristics through the @Transactional annotation.

[0029] Furthermore, the report generation in step S70 includes:

[0030] Use MyBatis dynamic SQL to count the success rate of delivery by time period;

[0031] Generate an editable Excel file containing line charts and bar charts;

[0032] Push the report attachment to the preset administrator's email.

[0033] Furthermore, the method for implementing a callback service based on Java and intranet penetration further includes:

[0034] Integrate the Prometheus monitoring component to collect JVM memory usage metrics in real time;

[0035] Trigger a WeChat alarm notification when the number of active threads in the thread pool exceeds the threshold;

[0036] Identify the callback latency bottleneck nodes based on the Zipkin distributed tracing link identifier.

[0037] The present invention also provides a device for implementing a callback service based on Java and intranet penetration, including:

[0038] An interface definition module for defining a callback interface, creating a Java interface containing an onResult method, and the onResult method is configured to receive an asynchronous operation result string parameter;

[0039] An asynchronous execution module for constructing an asynchronous operation class, receiving an instance of the callback interface through a constructor, and generating an independent thread to simulate HTTP / HTTPS network request operations, and calling the onResult method of the callback interface to pass the result after the asynchronous operation is completed;

[0040] A penetration service module for configuring the natapp client, injecting an authtoken into the local server and binding the local service port to the public network domain name, and establishing a bidirectional TCP long connection channel to achieve intranet penetration;

[0041] A security verification module for performing HMAC-SHA256 signature verification, generating a request body digest by the client and attaching it to the request header, and the server compares the signature legality and triggers an error handling process;

[0042] The data cleaning module performs preprocessing on the verified JSON data, including the conversion of the timestamp to a standardized format and the filtering of redundant fields;

[0043] The persistence module persistently stores the preprocessed data in a MySQL database and realizes the mapping between entity classes and database table fields through Spring Data JPA;

[0044] The analysis report module enables the Spring Scheduler timed task component to perform the operation of cleaning expired data at a preset period and generate a multi-dimensional message delivery rate analysis report based on Apache POI.

[0045] The present invention also provides a computer device, which includes a memory and a processor. A computer program is stored on the memory. When the processor executes the computer program, the method for implementing a callback service based on Java and intranet penetration as described above is realized.

[0046] The present invention also provides a storage medium, which stores a computer program. When the computer program is executed by a processor, the method for implementing a callback service based on Java and intranet penetration as described above can be realized.

[0047] The beneficial effects of the present invention are as follows: adopting this solution can improve the readability and maintainability of the code, simplify the use and understanding of callback functions, and simplify the construction of development and test environments; performing HMAC-SHA256 signature verification can enhance data security, prevent data tampering and man-in-the-middle attacks, enhance the stability and connectivity of the callback service, and reduce service interruptions caused by network problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The specific structure of the present invention is described in detail below with reference to the drawings.

[0049] Figure 1 It is a flowchart of the method for implementing a callback service based on Java and intranet penetration according to an embodiment of the present invention;

[0050] Figure 2 It is a flowchart of the natapp client configuration according to an embodiment of the present invention;

[0051] Figure 3 It is a flowchart of performing HMAC-SHA256 signature verification according to an embodiment of the present invention;

[0052] Figure 4 It is a flowchart of performing preprocessing on JSON data according to an embodiment of the present invention;

[0053] Figure 5 It is a flowchart of data storage according to an embodiment of the present invention;

[0054] Figure 6 It is the flowchart of report generation for the embodiment of the present invention;

[0055] Figure 7 It is the flowchart of monitoring system configuration for the embodiment of the present invention;

[0056] Figure 8 It is the block diagram of the callback service implementation device based on Java and intranet penetration for the embodiment of the present invention;

[0057] Figure 9 It is the schematic block diagram of the computer device for the embodiment of the present invention. Specific embodiments

[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0059] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0060] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in this specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0061] It should be further understood that the term " / and / " used in this specification of the present invention and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0062] As Figure 1 shown, the embodiment of the present invention is: a method for implementing a callback service based on Java and intranet penetration, including the following steps:

[0063] S10. Define a callback interface, create a Java interface containing the onResult method, and the onResult method is configured to receive an asynchronous operation result string parameter.

[0064] In this embodiment, the callback interface is designed using the functional programming paradigm. The @FunctionalInterface annotation is added at the interface declaration to constrain that the interface contains only a single abstract method. The interface method explicitly declares to throw the JsonProcessingException, forcing the implementing class to handle JSON serialization exceptions. The functional interface is adapted to implement Lambda expressions, reducing the code coupling degree of the callback logic. The exception declaration mechanism ensures that JSON parsing errors can be uniformly captured, avoiding system crashes caused by data format errors.

[0065] S20. Construct an asynchronous operation class, receive the callback interface instance through the constructor, and generate an independent thread to simulate HTTP / HTTPS network request operations. After the asynchronous operation is completed, call the onResult method of the callback interface to pass the result.

[0066] In this embodiment, the intranet penetration client configuration includes local service IP address binding, debug log level setting, and a 30-second heartbeat interval parameter. When mapping the local port, an available public network HTTPS port is automatically selected, and a dual-channel TCP connection is established. IP binding solves the routing ambiguity problem of multi-network card servers, and the heartbeat mechanism maintains the stability of long connections. Dynamic port allocation avoids public network port conflicts, and the dual-channel design improves the reliability of data transmission.

[0067] S30. Configure the natapp client, inject the authtoken into the local server, and bind the local service port to the public network domain name to establish a bidirectional TCP long connection channel to achieve intranet penetration.

[0068] In a specific embodiment, as Figure 2 shown, in step S30, the natapp client configuration specifically includes:

[0069] S31. Declare the local service IP address and port number in the configuration file;

[0070] S32. Establish a connection with the natapp server through an SSL / TLS encryption channel;

[0071] S33. Dynamically allocate a public network accessible HTTPS domain name and port combination.

[0072] In this embodiment, the intranet penetration client configuration includes local service IP address binding, debug log level setting, and a 30-second heartbeat interval parameter. When mapping the local port, an available public network HTTPS port is automatically selected, and a dual-channel TCP connection is established. IP binding solves the routing ambiguity problem of multi-network card servers, and the heartbeat mechanism maintains the stability of long connections. Dynamic port allocation avoids public network port conflicts, and the dual-channel design improves the reliability of data transmission.

[0073] S40. Perform HMAC-SHA256 signature verification. After the client generates the request body digest, append it to the request header. The server compares the signature legality and triggers the error handling process.

[0074] In a specific embodiment, as Figure 3 shown, step S40 specifically includes:

[0075] S41. The client uses the pre-shared key to perform a hash operation on the request body to generate a 32-byte signature.

[0076] S42. The server extracts the X-Signature field from the request header and performs a bit-by-bit comparison.

[0077] S43. When the verification fails, record the security event log and return a 401 Unauthorized status code.

[0078] In this embodiment, the signature verification uses a constant-time comparison algorithm to verify the hash value. The client uses the preset key to perform HMAC-SHA256 operation on the request body to generate a 64-bit hexadecimal signature string. The server extracts the key from the distributed cache for comparison. The constant-time algorithm prevents timing side-channel attacks, and the cache query replaces the database read to reduce the verification latency. The hexadecimal encoding ensures the cross-platform compatibility of the signature string.

[0079] S50. Perform preprocessing on the verified JSON data, including timestamp normalization format conversion and redundant field filtering.

[0080] In a specific embodiment, as Figure 4 shown, the preprocessing operation in step S50 further includes:

[0081] S51. Use the Jackson library to parse the nested JSON data structure.

[0082] S52. Convert the Unix timestamp to a preset format.

[0083] S53. Use regular expressions to filter non-ASCII control characters.

[0084] In this embodiment, the JSON preprocessing stage uses the tree parsing mode of the Jackson library to process the nested data structure. The timestamp is uniformly converted to the format "yyyy-MM-dd'T'HH:mm:ss.SSSZ", and the regular expression [\x00-\x1F\x7F] is applied to filter the control characters. The tree parsing avoids the development cost of defining a complete POJO class. The ISO8601 time format eliminates the time zone parsing ambiguity. The control character filtering prevents database storage exceptions caused by non-conventional characters.

[0085] S60. Persist the preprocessed data to the MySQL database and implement the mapping between the entity class and the database table fields through Spring Data JPA.

[0086] In a specific embodiment, as Figure 5 shown, the data storage in step S60 adopts:

[0087] S61. Define entity attributes of message status, receiving time, and message type in the JPA annotation way;

[0088] S62. Establish a multi-table partition storage structure according to message classification;

[0089] S63. Ensure the ACID transaction characteristics through the @Transactional annotation.

[0090] In this embodiment, JPA dynamic table name strategy is adopted for data persistence, and the partition table is automatically selected for storage according to the message type. The message content field is defined as the MEDIUMTEXT type, and the read committed isolation level is adopted for transaction management. Dynamic table partitioning improves the query efficiency of massive data, and the MEDIUMTEXT type supports a maximum text storage of 16MB. The isolation level setting balances data consistency and system throughput.

[0091] S70. Enable the Spring Scheduler timed task component, perform the expired data cleaning operation at a preset cycle, and generate a multi-dimensional message delivery rate analysis report based on Apache POI.

[0092] In a specific embodiment, as Figure 6 shown, the report generation in step S70 includes:

[0093] S71. Use MyBatis dynamic SQL to count the delivery success rate by time period;

[0094] S72. Generate an editable Excel file containing line charts and bar charts;

[0095] S73. Push the report attachment to the preset administrator email.

[0096] In this embodiment, the analysis report adopts the OOXML format standard of Excel, embeds a formatted date object in the cell, and creates an independent pivot table to count the delivery success rate by time period. The OOXML format ensures the memory efficiency of exporting million-level data, and the pivot table realizes multi-dimensional analysis without modifying the query logic. The date object format avoids text conversion errors.

[0097] In a specific embodiment, as Figure 7 shown, the implementation method of the callback service based on Java and intranet penetration further includes:

[0098] S81. Integrate the Prometheus monitoring component to collect the JVM memory usage metrics in real time;

[0099] S82. Trigger a WeChat alarm notification when the number of active threads in the thread pool exceeds the threshold;

[0100] S83. Callback the latency bottleneck nodes based on the Zipkin distributed tracing link identifier.

[0101] In this embodiment, the monitoring system configures the usage metrics of each memory area (heap, non-heap, code cache) of the JVM. The threshold of the number of active threads in the thread pool is set to 90% of the maximum number of threads. The tracing link injects a unique request identifier using the OpenTracing standard. Fine-grained memory monitoring quickly locates memory leak problems, and threshold warnings prevent task accumulation in the thread pool. Standardized tracing identifiers enable cross-system call chain analysis.

[0102] The technical solution of this embodiment integrates penetration technology and asynchronous callback to eliminate network isolation restrictions; ensures communication security through signature verification and data cleaning, and improves resource utilization relying on thread pool optimization and timing mechanisms to ensure system stability and data auditability in high-concurrency scenarios.

[0103] As Figure 8 shown, the embodiment of the present invention also provides a callback service implementation device based on Java and intranet penetration, including:

[0104] An interface definition module 10, used to define a callback interface, create a Java interface containing an onResult method, and the onResult method is configured to receive an asynchronous operation result string parameter;

[0105] An asynchronous execution module 20, used to construct an asynchronous operation class, receive an instance of the callback interface through a constructor, and generate an independent thread to simulate HTTP / HTTPS network request operations, and call the onResult method of the callback interface to pass the result after the asynchronous operation is completed;

[0106] A penetration service module 30, configured with a natapp client, injects an authtoken into the local server and binds the local service port to the public network domain name to establish a bidirectional TCP long connection channel to achieve intranet penetration;

[0107] A security verification module 40, which performs HMAC-SHA256 signature verification. The client generates a request body digest and attaches it to the request header, and the server compares the signature legality and triggers an error handling process;

[0108] The data cleaning module 50 performs preprocessing on the verified JSON data, including converting the timestamp to a standardized format and filtering redundant fields.

[0109] The persistence module 60 persistently stores the preprocessed data in a MySQL database and realizes the mapping between entity classes and database table fields through Spring Data JPA.

[0110] The analysis report module 70 enables the Spring Scheduler timed task component to perform the operation of cleaning expired data at a preset period and generate a multi-dimensional message delivery rate analysis report based on Apache POI.

[0111] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the above callback service implementation method based on Java and intranet penetration can refer to the corresponding description in the foregoing method embodiments. For the sake of convenience and brevity of description, it will not be elaborated here.

[0112] The above callback service implementation device based on Java and intranet penetration can be implemented in the form of a computer program, and this computer program can run on a computer device as shown in Figure 9 the following.

[0113] Please refer to Figure 9 , Figure 9 which is a schematic block diagram of a computer device provided by an embodiment of the present application. The computer device 500 can be a terminal or a server. Among them, the terminal can be an electronic device with a communication function such as a smart phone, a tablet computer, a notebook computer, a desktop computer, a personal digital assistant, and a wearable device. The server can be an independent server or a server cluster composed of multiple servers.

[0114] Refer to Figure 9 , the computer device 500 includes a processor 502, a memory, and a network interface 505 connected through a system bus 501. Among them, the memory can include a non-volatile storage medium 503 and an internal memory 504.

[0115] The non-volatile storage medium 503 can store an operating system 5031 and a computer program 5032. The computer program 5032 includes program instructions, and when these program instructions are executed, the processor 502 can execute a callback service implementation method based on Java and intranet penetration.

[0116] The processor 502 is used to provide computing and control capabilities to support the operation of the entire computer device 500.

[0117] The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503. When the computer program 5032 is executed by the processor 502, it enables the processor 502 to execute a callback service implementation method based on Java and intranet penetration.

[0118] The network interface 505 is used for network communication with other devices. Those skilled in the art can understand that Figure 9 the structure shown in is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the computer device 500 to which the solution of this application is applied. The specific computer device 500 may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0119] Among them, the processor 502 is used to run the computer program 5032 stored in the memory to implement the flowchart of the callback service implementation method based on Java and intranet penetration as described above.

[0120] It should be understood that in the embodiment of this application, the processor 502 may be a central processing unit (CPU), and the processor 502 may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0121] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program includes program instructions, and the computer program can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0122] Therefore, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program, where the computer program includes program instructions. When the program instructions are executed by the processor, the processor executes the callback service implementation method based on Java and intranet penetration as described above.

[0123] The storage medium may be a U disk, a mobile hard disk, a read-only memory (ROM), a magnetic disk, an optical disk, or other computer-readable storage media that can store program codes.

[0124] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0125] In several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of each unit is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0126] The steps in the method embodiments of the present invention can be adjusted, combined, and deleted according to actual needs. The units in the device embodiments of the present invention can be combined, divided, and deleted according to actual needs. In addition, the functional units in each embodiment of the present invention can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0127] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on such understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present invention.

[0128] As described above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A method for implementing a callback service based on Java and intranet penetration, characterized in that It includes the following steps: S10. Define a callback interface, create a Java interface containing the onResult method, and the onResult method is configured to receive an asynchronous operation result string parameter; S20. Build an asynchronous operation class, receive an instance of the callback interface through a constructor, and generate an independent thread to simulate HTTP / HTTPS network request operations. After the asynchronous operation is completed, call the onResult method of the callback interface to pass the result; S30. Configure the natapp client, inject the authtoken into the local server and bind the local service port to the public network domain name, and establish a two-way TCP long connection channel to achieve intranet penetration; S40. Perform HMAC-SHA256 signature verification. After the client generates the request body digest, append it to the request header. The server compares the signature legality and triggers an error handling process; S50. Perform preprocessing on the verified JSON data, including timestamp standard format conversion and redundant field filtering; S60. Persistently store the preprocessed data in the MySQL database, and implement the mapping between the entity class and the database table fields through Spring Data JPA; S70. Enable the Spring Scheduler timed task component, perform expired data cleaning operations at a preset cycle, and generate a multi-dimensional message delivery rate analysis report based on Apache POI.

2. The callback service implementation method based on Java and intranet penetration according to claim 1, wherein, In step S30, the natapp client configuration specifically includes: Declare the local service IP address and port number in the configuration file; Establish a connection with the natapp server through an SSL / TLS encryption channel; Dynamically allocate a publicly accessible HTTPS domain name and port combination.

3. The callback service implementation method based on Java and intranet penetration according to claim 1, characterized in that, Step S40 specifically includes: The client uses a pre-shared key to perform a hash operation on the request body to generate a 32-byte signature; The server extracts the X-Signature field in the request header for bit-by-bit comparison; When the verification fails, record the security event log and return a 401 unauthorized status code.

4. The callback service implementation method based on Java and intranet penetration according to claim 1, characterized in that, In step S50, the preprocessing operation further includes: Use the Jackson library to parse the nested JSON data structure; Convert the Unix timestamp to a preset format; Use regular expressions to filter non-ASCII control characters.

5. The callback service implementation method based on Java and intranet penetration according to claim 1, characterized in that, In step S60, the data storage adopts: Define entity attributes such as message status, receiving time, and message type in the JPA annotation way; Establish a multi-table partition storage structure according to message classification; Ensure the ACID transaction characteristics through the @Transactional annotation.

6. The callback service implementation method based on Java and intranet penetration according to claim 1, characterized in that In step S70, the report generation includes: Use MyBatis dynamic SQL to count the delivery success rate by time period; Generate an editable Excel file containing line charts and bar charts; Push the report attachment to a preset administrator email.

7. The callback service implementation method based on Java and intranet penetration according to claim 1, characterized in that, It also includes: Integrate the Prometheus monitoring component to collect JVM memory usage metrics in real time; Trigger a WeChat alarm notification when the number of active threads in the thread pool exceeds the threshold; Identify the callback delay bottleneck nodes based on the Zipkin distributed tracing link identifier.

8. A method for implementing a callback service based on Java and intranet penetration, characterized in that, It includes: An interface definition module, which is used to define a callback interface, create a Java interface containing an onResult method, and the onResult method is configured to receive an asynchronous operation result string parameter; An asynchronous execution module, which is used to construct an asynchronous operation class, receive an instance of the callback interface through a constructor, generate an independent thread to simulate HTTP / HTTPS network request operations, and call the onResult method of the callback interface to pass the result after the asynchronous operation is completed; A penetration service module, which configures the natapp client, injects authtoken into the local server, binds the local service port to the public network domain name, and establishes a two-way TCP long connection channel to achieve intranet penetration; A security verification module, which performs HMAC-SHA256 signature verification. After the client generates a request body digest, it attaches it to the request header, and the server compares the signature legality and triggers an error handling process; A data cleaning module, which performs preprocessing on the verified JSON data, including timestamp standard format conversion and redundant field filtering; A persistence module, which persistently stores the preprocessed data in a MySQL database, and realizes the mapping between the entity class and the database table fields through Spring Data JPA; An analysis report module, which enables the Spring Scheduler timed task component, performs expired data cleaning operations at a preset cycle, and generates a multi-dimensional message delivery rate analysis report based on Apache POI.

9. A computer device, characterized in that: The computer device includes a memory and a processor. A computer program is stored on the memory. When the processor executes the computer program, it implements the callback service implementation method based on Java and intranet penetration according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores a computer program. When the computer program is executed by a processor, it can implement the callback service implementation method based on Java and intranet penetration according to any one of claims 1 to 7.