springboot （spring mvc）集成swagger

最近用springboot构建rest接口，考虑到最方便的验证接口，想到了引入swagger。

基本的步骤大致如下：

1.pom中引入swagger依赖：

<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
</dependency>

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

2.创建swagger的配置类：

/**
 * <Description> <br>
 *
 * @author luoluocaihong<br>
 * @version 1.0<br>
 * @taskId <br>
 * @CreateDate Oct 24, 2016 <br>
 * @since V8.1<br>
 * @see XXXX <br>
 */
@Configuration
@EnableWebMvc
@EnableSwagger2
@ComponentScan(basePackages = { "XXXX" })
public class SwaggerConfig {
    /**
     *
     * Description: <br>
     *
     * @author luoluocaihong<br>
     * @taskId <br>
     * @return <br>
     */
    ApiInfo apiInfo() {
        return new ApiInfoBuilder()
            .title("XXX Web SelfService APIs")
            .description("")
            .license("")
            .licenseUrl("")
            .termsOfServiceUrl("")
            .version("1.0.0")
            .build();
    }

    /**
     *
     * Description: <br>
     *
     * @author luoluocaihong<br>
     * @taskId <br>
     * @return <br>
     */
    @Bean
    public Docket customImplementation() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.basePackage("XXXX"))
                .build()
                .directModelSubstitute(org.joda.time.LocalDate.class, java.sql.Date.class)
                .directModelSubstitute(org.joda.time.DateTime.class, java.util.Date.class)
                .apiInfo(apiInfo());
    }

}

3.添加文档内容

/**
 * <Description> <br>
 *
 * @author luoluocaihong<br>
 * @version 1.0<br>
 * @taskId <br>
 * @CreateDate Jul 2, 2017 <br>
 * @since V8.0<br>
 * @see XXXX <br>
 */
@Api(value = "Rule Cateory")
@RestController
@EnableAutoConfiguration
@RequestMapping(value = "/iot/ruleengine/v1/rulecatg")
public class RuleCateoryController {

    /**
     * 自动注入
     */
    @Autowired
    private RuleCateoryService ruleCateoryService;

    @ApiOperation(value = "Query Rule Category and rule", notes = "Query Rule Category and rule",
        response = RuleCatgObj.class, tags = {"Rule Cateory" })
    @RequestMapping(value = "", produces = {"application/json" }, method = RequestMethod.GET)
    @ResponseStatus(value = HttpStatus.OK)
    @ResponseBody
    public RuleCatgObj QueryRuleCategoryAndRule() {
        RuleCatgObj ruleCatgObj = ruleCateoryService.queryRuleCategoryAndRule();
        return ruleCatgObj;
    }
}

4.启动springboot,访问http://localhost:8081/swagger-ui.html
会发现页面显示报错：

后台报错：

2017-07-02 15:56:51.988 WARN 7176 --- [ qtp20577666-17] o.s.web.servlet.PageNotFound : No mapping found for HTTP request with URI [/swagger-ui.html] in DispatcherServlet with name 'dispatcherServlet'

想一下swagger-ui.html 是在springfox-swagger-ui.jar里的

如何才能让我们能访问到swagger-ui.html???
【百度到，MARK  http://www.jianshu.com/p/840320d431a1】

Spring Boot自动配置本身不会自动把/swagger-ui.html这个路径映射到对应的目录META-INF/resources/下面。我们加上这个映射即可。

/**
 * <Description> <br>
 *
 * @author luoluocaihong<br>
 * @version 1.0<br>
 * @taskId <br>
 * @CreateDate Jul 2, 2017 <br>
 * @since V8.0<br>
 * @see XXXX <br>
 */
@Configuration
public class WebMVCConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("swagger-ui.html")
                .addResourceLocations("classpath:/META-INF/resources/");

registry.addResourceHandler("/webjars/**")
                 .addResourceLocations("classpath:/META-INF/resources/webjars/");

    }

}

再次启动springboot,访问http://localhost:8081/swagger-ui.html，OK：

将默认访问路径“/”修改为“/ruleengine”  ,如果不加上下面这段代码，访问将有问题：

registry.addResourceHandler("/webjars/**")
                 .addResourceLocations("classpath:/META-INF/resources/webjars/");