SpringBoot integrates Swagger2 to generate interface documents, and my mother no longer has to worry about me writing API documents.

In the current development process, basically all system development has been carried out using API interfaces. Therefore, in this process, a good API document has become the backend and frontend for communication and development. key bridge.

The traditional approach is for developers to create a RESTful API document to record all interface details. To be honest, such a workload is not small and very trivial, and as the project is updated The following problems will occur.

• Documentation is difficult to maintain.

• The interface content is more complex and the writing efficiency is lower.

Swagger is to solve this problem. As a standardized and complete framework, it can be used to generate, describe, call and visualize RESTful style Web services:

Through Swagger, we can automatically generate/update API interface documents by using annotations during the interface development process, and support debugging of the interface on the document page.

Next, let’s briefly talk about how to integrate Swagger2 in SpringBoot (2 represents its version)

Introduce Swagger2 dependency

pom.xmlfile

   io.springfox springfox-swagger2 2.8.0   io.springfox springfox-swagger-ui 2.8.0  

Create configuration file

Swagger2Config.javajava configuration file

@Configuration // 指定扫描的api包路径 @ComponentScan(basePackages = {"cn.beatree.xxx.controller"}) //注解开启 swagger2 功能 @EnableSwagger2 public class Swagger2Config { @Value("${swagger2.enable}") boolean enable; // 配置文件中通过值注入控制生产环境与开发环境下的启用状态 @Bean public Docket createRestApi() { return new Docket(DocumentationType.SWAGGER_2) .enable(enable) .apiInfo(apiInfo()) .select() .apis(RequestHandlerSelectors.any()) .paths(PathSelectors.any()) .build(); } private ApiInfo apiInfo() { return new ApiInfoBuilder() .title("ANONVOTE | Swagger API文档")//标题 .description("description: ANONVOTE | Swagger API文档")//描述 .contact("BEATREE")//作者信息 .version("1.0.0")//版本号 .build(); } }

application.ymlConfiguration file

swagger2: enable: false #true 启用

@ConfigurationAnnotation, specified as a configuration class, will be loaded when SpringBoot starts.

@EnableSwagger2annotation to enable Swagger2.

Member methodscreateRestApiAfter the function creates the Docket Bean,apiInfo()Basic information used to create the API (these basic information will be displayed in the documentation page). The select() function returns an ApiSelectorBuilder Instances are used to control which interfaces are exposed to Swagger for display. In this example, they are defined by specifying the scanned package path. Swagger will scan all Controllers under the package. Defines the API and produces documentation content (except for requests specified by@ApiIgnore).

Commonly used Swagger annotations

@Api: Modify the entire class and describe the role of the Controller

@ApiOperation: Describe a method of a class, or an interface

@ApiParam: Description of a single parameter @ApiModel: Use an object to Receive parameters

@ApiProperty: When using an object to receive parameters, describe a field of the object

@ApiResponse: One description of the HTTP response

@ApiResponses: The overall description of the HTTP response

@ApiIgnore: Use this annotation to ignore this API

@ApiError: Information returned when an error occurs

@ApiImplicitParam: Describes a request parameter, you can configure the Chinese meaning of the parameter, and you can also set the default value for the parameter

@ApiImplicitParams: Describes a request parameter list consisting of multiple

@ApiImplicitParamannotated parameters

For example

@RestController @Transactional // 事务注解，实现回滚 @RequestMapping("/api/tlink") @Api(value = "/api/tlink", tags = "参与者相关接口") public class TlinkController{ @GetMapping("/checkCode/{code}") @ApiOperation(value = "投票认证码核验接口", notes = "该接口用于核验认证码合法性，对于投票主题内容的获取需后续调用Topic相关接口。返回值data中带有参数 topic & options") public JSONObject checkCode(@PathVariable("code") String code){ ... } }

Finally, after running the SpringBoot project, access it through the server address/swagger-ui.html.

It should be noted that if a path interceptor has been added, the swagger path needs to be released through

.excludePathPatterns("/swagger-resources/**", "/webjars/**", "/v2/**", "/swagger-ui.html/**")

.

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