• SpringBoot版本：2.5.6
• Swagger版本：SpringFox 3.0.0

p.s. SpringBoot2.6.2版本不支持SpringFox 3.0.0

1.引入依赖

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-boot-starter</artifactId>
            <version>3.0.0</version>
        </dependency>

2.启动类增加注解@EnableOpenApi

package com.rickslab.learnprog;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import springfox.documentation.oas.annotations.EnableOpenApi;

@MapperScan("com.rickslab.learnprog.domain.mapper")
@EnableOpenApi
@SpringBootApplication
public class LearnProgApplication {

    public static void main(String[] args) {
        SpringApplication.run(LearnProgApplication.class, args);
    }

}

3.接口增加相关注解

• @Api(tags="xxx")：接口说明，放在类声明前面
• @ApiOperation("xxx")：方法说明，
• @ApiIngore：隐藏该方法

package com.rickslab.learnprog.web;

import com.rickslab.learnprog.domain.mapper.UserMapper;
import com.rickslab.learnprog.domain.po.UserPo;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;

import javax.servlet.http.HttpServletRequest;

@Api(tags = "用户管理")
@RestController
@RequestMapping("/user")
public class UserController {
    private final UserMapper userMapper;

    @Autowired
    UserController(UserMapper userMapper) {
        this.userMapper = userMapper;
    }

    @ApiOperation("根据用户名查找用户")
    @PostMapping("/findByName")
    public UserPo findByName(HttpServletRequest request) {
        String name = request.getParameter("name");
        return userMapper.findByName(name);
    }

    @ApiIgnore
    @PostMapping("/insert")
    public int insert(String name, Integer age) {
        return userMapper.insert(name, age);
    }
}

4.实体类增加相关注解

• @ApiModel("xxx")：实体类说明
• @ApiModelProperty("xxx")：实体类属性说明

package com.rickslab.learnprog.domain.po;

import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
@ApiModel("用户信息实体")
public class UserPo {
    @ApiModelProperty("姓名")
    private String name;
    @ApiModelProperty("id")
    private Long id;
    @ApiModelProperty("年龄")
    private Integer age;
}

5.访问

启动应用！访问swagger页面：http://localhost:8080/swagger-ui/index.html