Using the Swagger annotation framework in the Java class library to implement the technical method automatically generated by the API document (Technical Methods for Automatic API DOCUMENTATION Using Swagger Annitation in Java Class Librari ES)

Use the Swagger annotation framework in the Java class library to implement the technical method automatically generated by the API documentation Overview: When developing the RESTFUL style web service, the writing and update of API documents are an important and time -consuming task.To simplify this process, the Swagger annotation framework provides a method of automation generating API documents in the Java class library.This article will introduce how to use the Swagger annotation framework in the Java class library to implement the automatic generation of API documents and provide some Java code examples. 1. Add Swagger dependencies First, in the construction file of the Java project, such as Maven's pom.xml file, add Swagger dependence.The following is an example: <dependencies> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.9.2</version> </dependency> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>2.9.2</version> </dependency> </dependencies> 2. Add Swagger annotation to the RESTFUL interface method Add Swagger annotations on the RESTFUL interface method that needs to generate API documents.Here are some commonly used annotation examples: @RestController @RequestMapping("/api") @API (Value = "API", Description = "API Operation Interface")) public class ApiController { @APIPERATION (VALUE = "Get user information", notes = "Get user information based on user ID") @ApiImplicitParams({ @ApiImplicitParam(name = "userId", value = "用户ID", dataType = "Long", paramType = "path", example = "123") }) @RequestMapping(value = "/user/{userId}", method = RequestMethod.GET) public User getUser(@PathVariable Long userId) { // Execute the business logic of obtaining user information ... return user; } // Other API interface methods ... } In the above examples, we describe the API interface by using@API,@APIPERATION and @apiimplicitParam, etc., and describe the API interface. 3. Configure Swagger Settings To enable Swagger and configure related settings, we need to add Swagger configuration classes to the configuration file of the Java application.The following is a simple example: @Configuration @EnableSwagger2 public class SwaggerConfig { @Bean public Docket api() { return new Docket(DocumentationType.SWAGGER_2) .select() .apis(RequestHandlerSelectors.basePackage("com.example.api")) .paths(PathSelectors.any()) .build() .apiInfo(apiInfo()); } private ApiInfo apiInfo() { return new ApiInfoBuilder() .title ("API document")) .descripting ("API document automatically generated")) .version("1.0") .build(); } } In the above configuration class, we open the swagger through@ENableswagger2, and set information such as the path of the API interface package, the title, description and version of the API interface package through the Docket and related configuration methods. 4. Start the application and generate API documents After completing the above steps, we can start the Java application and access a specific URL to view the automatic API document.By default, the Swagger document UI interface can be accessed through the following URL: http://localhost:8080/swagger-ui.html You can view the automatic -generated API document in the browser by visiting the above URL. Summarize: The use of the Swagger annotation framework in the Java class library to achieve the automatic generation of API documents can greatly simplify the process of writing and updating the API documentation.By adding Swagger annotations to the RESTFUL interface method, configure the Swagger settings, and start the application, we can easily generate, view, share, and update the API documentation.This not only reduces the workload of manual writing documents, but also provides a unified API document format format and specification to facilitate teamwork and the use of third -party developers. The above is a detailed introduction to the technical method automatically generated by the SWAGGER annotation framework in the Java library to implement the technical method automatically generated by the API document, and provides the corresponding Java code example.Using the Swagger annotation framework can efficiently generate and maintain API documents to improve development efficiency and code quality.