Spring 4.2.2以上版本和swagger集成方案和踩过的坑

因为公司使用的spring版本太高，在集成swagger的时候会存在一些问题，而网上的很多实例大多都是版本比较低的，为了是朋友们少才坑，我这边将集成的过程记录一下：

1. 引入spring、swagger的相关jar包（springfox-swagger2、springfox-swagger-ui），在pom.xml中配置：

<dependency>    
            <groupId>io.springfox</groupId>    
            <artifactId>springfox-swagger2</artifactId>    
            <version>2.4.0</version>    
            <exclusions>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-core</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-beans</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-context</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-context-support</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-aop</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-tx</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-orm</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-jdbc</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-web</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-webmvc</artifactId>    
                </exclusion>    
                <exclusion>    
                    <groupId>org.springframework</groupId>    
                    <artifactId>spring-oxm</artifactId>    
                </exclusion>    
            </exclusions>    
        </dependency>    
        <dependency>    
            <groupId>io.springfox</groupId>    
            <artifactId>springfox-swagger-ui</artifactId>    
            <version>2.4.0</version>    
        </dependency>    

提醒： 特别注意，springfox-swagger2在集成的时候，已经引入了spring的相关jar，特别是spring-context、spring-context-support的版本和项目中使用的版本完全不一致，项目在启动的时候出现很多包冲突的问题，这边在引入pom.xml文件的时候过滤掉了spring的相关jar包，如绿色标志。

2. 编写Swagger的配置类：

package com.ml.honghu.swagger.web;    
    
import org.springframework.context.annotation.Bean;    
import org.springframework.context.annotation.ComponentScan;    
import org.springframework.context.annotation.Configuration;    
import org.springframework.web.servlet.config.annotation.EnableWebMvc;    
    
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;    
    
@EnableWebMvc    
@EnableSwagger2    
@Configuration    
@ComponentScan(basePackages ={"com.ml.honghu.**.rest"})    
public class SwaggerConfig {    
    @Bean    
    public Docket createRestApi() {    
        return new Docket(DocumentationType.SWAGGER_2)    
                .apiInfo(apiInfo())    
                .select()    
                .apis(RequestHandlerSelectors.basePackage("com.ml.honghu"))    
                .paths(PathSelectors.any())    
                .build();    
    }    
    
    private ApiInfo apiInfo() {    
        return new ApiInfoBuilder()    
                .title("接口列表 v1.0")    
                .description("接口信息")    
                .termsOfServiceUrl("http://honghu.com")    
                .contact(new Contact("", "", "HongHu"))    
                .version("1.1.0")    
                .build();    
    }    
}    

提醒：注意红色标注的地方

3. 在spring-mvc.xml文件中进行过滤器的配置，过滤掉swagger的相关访问配置：

<mvc:exclude-mapping path="/swagger*/**"/>    
<mvc:exclude-mapping path="/v2/**"/>    
<mvc:exclude-mapping path="/webjars/**"/>    

<span style="color: #ff0000;">@Api("区域服务")</span>    
@RestController    
@RequestMapping(value = "/rest/area")    
public class AreaService  {    
    
    @Autowired    
    private AreaService areaService;    
        
    <span style="color: #ff0000;">@ApiOperation(value = "区域列表", httpMethod = "GET", notes = "区域列表")</span>    
    @IsLogin    
    @ResponseBody    
    @RequestMapping(value = "treeData", method = RequestMethod.GET)    
    public List<Map<String, Object>> treeData(    
            <span style="color: #ff0000;">@ApiParam(required = true, value = "区域ID")</span>  @RequestParam(required=false) String extId, HttpServletResponse response) {    
        List<Map<String, Object>> mapList = Lists.newArrayList();    
        List<Area> list = areaService.findAll();    
        for (int i=0; i<list.size(); i++){    
            Area e = list.get(i);    
            if (StringUtils.isBlank(extId) || (extId!=null && !extId.equals(e.getId()) && e.getParentIds().indexOf(","+extId+",")==-1)){    
                Map<String, Object> map = Maps.newHashMap();    
                map.put("id", e.getId());    
                map.put("pId", e.getParentId());    
                map.put("name", e.getName());    
                mapList.add(map);    
            }    
        }    
        return mapList;    
    }    
}    

4. 启动项目，查看结果：

到此结束！