Swagger使用案例

1、新建SpringBoot项目，导入swagger依赖

<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger-ui</artifactId>
    <version>2.9.2</version>
</dependency>
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger2</artifactId>
    <version>2.9.2</version>
</dependency>

2、编写swagger的配置文件

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
 
/**
 1. swagger配置类
 */
@Configuration
@EnableSwagger2
public class SwaggerConfig {
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                //是否开启 (true 开启  false隐藏。生产环境建议隐藏)
                //.enable(false)
                .select()
                //扫描的路径包,设置basePackage会将包下的所有被@Api标记类的所有方法作为api
                .apis(RequestHandlerSelectors.basePackage("com.mcy.springbootswagger.controller"))
                //指定路径处理PathSelectors.any()代表所有的路径
                .paths(PathSelectors.any())
                .build();
    }
 
    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                //设置文档标题(API名称)
                .title("SpringBoot中使用Swagger2接口规范")
                //文档描述
                .description("接口说明")
                //服务条款URL
                .termsOfServiceUrl("http://localhost:8080/")
                //版本号
                .version("1.0.0")
                .build();
    }
}

3.@EnableSwagger2的作用是启用Swagger2相关功能

import com.mcy.springbootswagger.User.User;
import com.mcy.springbootswagger.service.UserService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
 
@RestController
@RequestMapping("/user")
//说明接口文件
@Api(value = "测试接口", tags = "用户管理相关的接口", description = "用户测试接口")
public class UserController {
    @Autowired
    private UserService userService;
 
    /**
     * 保存数据
     * @param user
     * @return
     */
    @PostMapping(value = "/save")
    //方法参数说明，name参数名；value参数说明，备注；dataType参数类型；required 是否必传；defaultValue 默认值
    @ApiImplicitParam(name = "user", value = "新增用户数据")
    //说明是什么方法(可以理解为方法注释)
    @ApiOperation(value = "添加用户", notes = "添加用户")
    public String saveUser(User user){
        userService.save(user);
        return "保存成功";
    }
 
    /**
     * 根据id查询用户
     * @param id
     * @return
     */
    @GetMapping(value = "findById")
    @ApiOperation(value = "根据id获取用户信息", notes = "根据id查询用户信息")
    public User getUser(Integer id){
        return userService.findById(id);
    }
 
    @DeleteMapping(value = "deleteById")
    @ApiOperation(value = "根据id删除数据", notes = "删除用户")
    public String delete(Integer id){
        userService.deleteById(id);
        return "删除成功";
    }
}

运行项目，输入http://localhost:8080/swagger-ui.html访问Swagger页面，页面如下：

 Swagger使用的注解及其说明：