<dependency> 
 <groupId>io.springfox</groupId> 
 <artifactId>springfox-swagger2</artifactId> 
 <version>2.4.0</version> 
 </dependency> 
 <dependency> 
 <groupId>io.springfox</groupId> 
 <artifactId>springfox-swagger-ui</artifactId> 
 <version>2.4.0</version> 
 </dependency> 

<mvc:default-servlet-handler />

package com.xingguo.logistics.swagger;

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

@Configuration
@EnableSwagger2
public class SwaggerConfig {

 @Bean
 public Docket buildDocket(){
 return new Docket(DocumentationType.SWAGGER_2)
  .apiInfo(buildApiInf())
  .select() .apis(RequestHandlerSelectors.basePackage("com.xingguo.logistics.controller"))//controller路径
  .paths(PathSelectors.any())
  .build();
 }

 private ApiInfo buildApiInf(){
 return new ApiInfoBuilder()
  .title("xingguo大标题")
  .termsOfServiceUrl("http://blog.csdn.net/u014231523网址链接")
  .description("springmvc swagger2")
  .contact(new Contact("diaoxingguo", "http://blog.csdn.net/u014231523", "diaoxingguo@163.com"))
  .build();

 }
}

@Controller
//类上使用@Api
@Api(value="用户controller",description="用户相关操作")
public class UserController {

 @RequestMapping(value="index",method=RequestMethod.POST)
 //方法上使用@ApiOperation
 @ApiOperation(value="首页",notes="跳转到首页")
 //参数使用@ApiParam
 public Object getIndex(@ApiParam(name="topic实体",value="json格式",required=true) @RequestBody Topic topic){
 //业务内容，被我删除了，请忽略，主要看上面的注解
 Object obj = new Object();
 return obj;
 }
}

//一般添加个@ApiModel（）就可以，看情况使用里面的属性
@ApiModel(value="Topic", discriminator = "foo", subTypes = {Topic.class})
public class Topic{

}