如何在springboot項目中使用swagger

<dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger2</artifactId>
      <version>2.2.2</version>
    </dependency>
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger-ui</artifactId>
      <version>2.2.2</version>
    </dependency>

package com.xxx.firstboot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

import springfox.documentation.swagger2.annotations.EnableSwagger2;

@SpringBootApplication    //same as @Configuration+@EnableAutoConfiguration+@ComponentScan
@EnableSwagger2       //啟動swagger注解
public class Application {

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

}

package com.xxx.firstboot.web;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.xxx.firstboot.domain.User;
import com.xxx.firstboot.service.UserService;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;

@RestController
@RequestMapping("/user")
@Api("userController相關(guān)api")
public class UserController {

  @Autowired
  private UserService userService;
  
//  @Autowired
//  private MyredisTemplate myRedisTemplate;

  @ApiOperation("獲取用戶信息")
  @ApiImplicitParams({
    @ApiImplicitParam(paramType="header",name="username",dataType="String",required=true,value="用戶的姓名",defaultValue="zhaojigang"),
    @ApiImplicitParam(paramType="query",name="password",dataType="String",required=true,value="用戶的密碼",defaultValue="wangna")
  })
  @ApiResponses({
    @ApiResponse(code=400,message="請求參數(shù)沒填好"),
    @ApiResponse(code=404,message="請求路徑?jīng)]有或頁面跳轉(zhuǎn)路徑不對")
  })
  @RequestMapping(value="/getUser",method=RequestMethod.GET)
  public User getUser(@RequestHeader("username") String username, @RequestParam("password") String password) {
    return userService.getUser(username,password);
  }
  
//  @RequestMapping("/testJedisCluster")
//  public User testJedisCluster(@RequestParam("username") String username){
//    String value = myRedisTemplate.get(MyConstants.USER_FORWARD_CACHE_PREFIX, username);
//    if(StringUtils.isBlank(value)){
//      myRedisTemplate.set(MyConstants.USER_FORWARD_CACHE_PREFIX, username, JSON.toJSONString(getUser()));
//      return null;
//    }
//    return JSON.parseObject(value, User.class);
//  }
  
}