Method for realizing front-end page development based on metadata

Abstract

The invention relates to a system and a method for realizing front-end page development based on metadata, and aims to improve the efficiency and the flexibility of front-end development. The system comprises a metadata definition module, a metadata analysis module, a rendering engine and an expansion interface. Through the metadata definition module, a user can define the layout, UI components, data binding, interaction logic and other contents of a front-end page in a configuration mode, the metadata analysis module automatically generates corresponding HTML, CSS and JavaScript codes according to a defined metadata model, and the rendering engine is responsible for dynamically rendering the codes into a visual front-end page. And real-time preview is supported. And the expansion interface provides integration with a back-end service and a database, so that dynamic loading and interaction of data are realized. According to the system, the workload of manually compiling codes is greatly reduced, the reusability and maintainability of the codes are improved, the change of business requirements can be quickly responded, and the system is suitable for various front-end development scenes.

Description

TECHNICAL FIELD

[0001] A method for developing front-end pages based on metadata belongs to the technical field of computer software development. It defines the structure, style, data binding, and interaction logic of front-end pages using a metadata model, aiming to simplify the front-end development process, improve development efficiency and code reusability, and enhance the flexible response capability of front-end pages to changes in business requirements. BACKGROUND

[0002] With the development of Internet technology, the development of front-end pages has become complex, and traditional development methods have problems such as code redundancy, lack of flexibility, and difficulty in collaboration. The metadata-based front-end page development method simplifies the development process by defining a metadata model, improving efficiency and flexibility. SUMMARY

[0003] The present application provides a system and method for developing front-end pages based on metadata, aiming to simplify the front-end development process, improve development efficiency, and enhance the flexible adaptability of front-end pages to changes in business requirements. The system includes four main modules: metadata definition module, metadata parsing module, rendering engine, and extension interface. The metadata definition module is the core of the system, used to define the metadata model of the front-end page. The model describes the page layout, UI component properties and behaviors, data binding rules, and interaction logic through configuration, replacing traditional handwritten code. The metadata model is divided into four parts: page layout metadata, UI component metadata, data binding metadata, and interaction logic metadata. Page layout metadata defines the overall structure, and users can define layout rules through a visual interface or configuration file. UI component metadata defines component types, style settings, and interaction events. Data binding metadata configures the binding rules between components and data sources. Interaction logic metadata defines page interaction behavior and business logic.

[0004] There are two ways to generate page layout: automatic generation based on metadata and user-defined generation. The former selects functions and binds metadata entities through a UI builder, and the latter allows users to manually drag and drop page element components and edit their properties and events. The metadata parsing module is responsible for parsing the metadata model into HTML, CSS, and JavaScript code. The parsing module includes parsing engine and template engine integration functions, which can efficiently parse metadata structures and support integration with front-end template engines. The rendering engine dynamically renders the parsed front-end code into the final user-visible page, providing real-time rendering and preview functions, and supporting responsive design. The extension interface realizes the integration of front-end pages with back-end services and database systems, supporting real-time updating of page data. Functions include standardized API integration, database connection, and event-driven mechanisms.

[0005] In practical implementation, for example, enterprise developers use this system to define metadata models for UI components such as employee information forms. The system quickly generates management pages and adjusts the layout and interaction logic according to business needs. The metadata parsing module converts the model into front-end code, and the rendering engine generates the page in real time. Developers can adjust metadata model configuration items, and the system automatically updates the page display. Through extended interfaces, the system integrates with backend data services to achieve real-time data loading.

[0006] This approach not only improves the speed and flexibility of front-end development, but also enhances its adaptability to changes in business requirements, making it suitable for a variety of front-end application scenarios. Attached Figure Description Figure 1 A diagram illustrating the metadata definition module. Figure 2 This is a diagram illustrating the rendering engine. Figure 3 This is a diagram illustrating the extended interface. Figure 4 This is a diagram illustrating the metadata of the front-end page for personnel management in the implementation case. Figure 5 This is a schematic diagram of the front-end page results for personnel management in the implementation case.

Claims

1. A system for implementing front-end page development based on metadata, characterized in that, The system comprises: a metadata definition module for defining a metadata model of a front-end page, the metadata model comprising page layout, UI components, data binding and interaction logic; a metadata parsing module for parsing the metadata model and generating corresponding front-end code, including HTML, CSS and JavaScript code; a rendering engine for dynamically rendering the front-end code into a front-end page and providing a real-time preview function; and an extension interface for integrating with back-end services and databases to realize dynamic loading and interaction of data of the front-end page.

2. The system of claim 1, wherein, The metadata definition module allows users to define page layout, attributes of UI components, rules of data binding and interaction logic in a configurable manner. Page layout metadata: used to define the overall structure of the front-end page, including the basic framework of the page, the position, proportion and arrangement order of each region. Users can set the layout structure of the page by dragging or configuring, such as the header, navigation bar content area, sidebar and footer. UI component metadata: used to define the attributes and behaviors of various UI components used in the page. UI components include but are not limited to buttons, input boxes, drop-down menus, forms, charts, tables and pop-up windows. Metadata description of each component includes component type, style, default value, visibility condition, event binding (such as click, hover) and the like. Data binding metadata: used to define the binding rules between UI components and data sources. Including the source of binding data (such as API interface, database query, global variable, etc.), data format conversion rules, data update trigger conditions, and data display method in the page. Interaction logic metadata: used to define the interaction behavior and business logic of the front-end page. Interaction logic can include page jump data submission, form validation, dynamic content loading, user permission control and the like. Through the metadata model, users can configure complex business logic without manually writing JavaScript code.

3. The system of claim 1, wherein, The system comprises a parsing engine and a template engine integration. Parsing engine: responsible for parsing the defined metadata model and converting it into standard front-end code, including HTML, CSS and JavaScript. The parsing engine has high parsing capability and can handle complex metadata structures and generate code that meets modern browser standards. Template engine integration: supports integrating the parsing result with a front-end template engine (such as Handlebars, EJS, etc.) to ensure that the generated page has dynamic content filling capability. The use of template engines makes page rendering more flexible and adaptable to different business needs.

4. The system of claim 1, wherein, The rendering engine supports real-time adjustment of the metadata model during page generation and dynamic updating of the display content of the front-end page. Real-time rendering: after the metadata model is parsed, the rendering engine instantly renders the generated front-end code into a visual page. The rendering process supports real-time preview, that is, the user can immediately see the updated effect of the page while defining or adjusting the metadata. Responsive design support: the rendering engine supports responsive design, so that the generated page can be adaptively displayed on different devices and screen sizes. Through the layout and style configuration in the metadata, the user can define the page performance under different resolutions.

5. The system of claim 1, wherein, The extension interface includes standardized APIs for data exchange with backend services to achieve dynamic data binding of the front-end page. API integration interface: provides a standardized API integration interface that allows the front-end page to exchange data with the back-end service. The API integration interface supports multiple communication protocols such as RESTful API, GraphQL, WebSocket, etc., ensuring dynamic data loading and real-time updating of the page. Database connection support: the extension interface can directly connect to common database systems, obtain data through query statements or stored procedures, and bind it to page components to achieve data-driven front-end development. Event-driven mechanism: the extension interface supports an event-driven mechanism that allows page components to automatically trigger data requests, page updates, or business logic execution based on user actions or external events.

6. A method for realizing front-end page development based on metadata, characterized in that, The method includes the following steps: defining the metadata model of the front-end page, including page layout, UI components, data binding, and interaction logic; parsing the metadata model through a metadata parsing module to generate corresponding front-end code; using a rendering engine to dynamically render the front-end code into a front-end page and preview it in real time; and integrating with the back-end service and database through the extension interface to dynamically load and interact data of the front-end page.

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