IDEA+SpringBoot整合Swagger2创建API文档

------------恢复内容开始------------

1.创建SpringBoot项目

2.选择快捷方式创建springboot项目

 

 

 

 

 3.工程文件树形图

 4.pom.xml中导入Swagger依赖

 代码如下：

       <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>

5.配置Swagger信息

 

 代码如下：

package com.example.dell;

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.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

/**
 * @program:swagger2-demo
 * @description:swagger配置类
 * @author:feixiang
 * @create:2020/5/14
 */

@Configuration
@EnableSwagger2
public class Swagger2Config {
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .pathMapping("/")
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.example.dell.web"))
                .paths(PathSelectors.any())
                .build().apiInfo(new ApiInfoBuilder()
                        .title("飞翔用接口自动化平台")
                        .description("飞翔独享")
                        .version("9.0")
                        .contact(new Contact("马化腾","blog.csdn.net","aaa@gmail.com"))
                        .license("The Apache License")
                        .licenseUrl("http://www.baidu.com")
                        .build());
    }
}

创建接口

接下来就是创建接口了，Swagger2相关的注解其实并不多，而且很容易懂，下面我来分别向小伙伴们举例说明

 代码如下

package com.example.dell.web;

import com.example.dell.pojo.User;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;



@RestController
@Api(tags = "用户管理相关接口")
@RequestMapping("/user")
public class UserController{
    @PostMapping("/")
    @ApiOperation("添加用户的接口")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "username", value = "用户名", defaultValue = "张三"),
            @ApiImplicitParam(name = "address", value = "用户地址", defaultValue = "佛山", required = true)
    }
    )
    public RespBean addUser(String username, @RequestParam(required = true) String address) {
        return new RespBean();
    }

    @GetMapping("/")
    @ApiOperation("根据id查询用户的接口")
    @ApiImplicitParam(name = "id", value = "用户id", defaultValue = "99", required = true)
    public User getUserById(@PathVariable Integer id) {
        User user = new User();
        user.setId(id);
        return user;
    }
    @PutMapping("/{id}")
    @ApiOperation("根据id更新用户的接口")
        public User updateUserById(@RequestBody User user) {
        return user;
    }
}

这里边涉及到多个API，我来向小伙伴们分别说明：

@Api注解可以用来标记当前Controller的功能。
@ApiOperation注解用来标记一个方法的作用。
@ApiImplicitParam注解用来描述一个参数，可以配置参数的中文含义，也可以给参数设置默认值，这样在接口测试的时候可以避免手动输入。
如果有多个参数，则需要使用多个@ApiImplicitParam注解来描述，多个@ApiImplicitParam注解需要放在一个@ApiImplicitParams注解中。
需要注意的是，@ApiImplicitParam注解中虽然可以指定参数是必填的，但是却不能代替@RequestParam(required = true)，前者的必填只是在Swagger2框架内必填，抛弃了Swagger2，这个限制就没用了，所以假如开发者需要指定一个参数必填，@RequestParam(required = true)注解还是不能省略。
如果参数是一个对象（例如上文的更新接口），对于参数的描述也可以放在实体类中。例如下面一段代码：

package com.example.dell.pojo;

import io.swagger.annotations.ApiModelProperty;




public class User {
    @ApiModelProperty(value = "用户id")
    private Integer id;
    @ApiModelProperty(value = "用户名")
    private String username;
    @ApiModelProperty(value = "用户地址")
    private String address;
    //getter/setter

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }
}

 代码如下：

package com.example.dell.web;

import io.swagger.annotations.ApiModelProperty;

public class RespBean {
    @ApiModelProperty(value = "用户id")
    private Integer id;
    @ApiModelProperty(value = "用户名")
    private String username;
    @ApiModelProperty(value = "用户地址")
    private String address;
    //getter/setter

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }
}

然后启动，运行

 

 此时启动项目，输入http://localhost:8080/swagger-ui.html，能够看到如下页面，说明已经配置成功了：