Spring MVC学习总结(9)——Spring MVC整合swagger自动生成api接口文档
Swagger 号称:世界最流行的API框架,官网:http://swagger.io/,Swagger 是一个规范和完整的框架,用于生成、描述、调用和可视化 RESTful 风格的 Web 服务。总体目标是使客户端和文件系统作为服务器以同样的速度来更新。文件的方法,参数和模型紧密集成到服务器端的代码,允许API来始终保持同步。Swagger 让部署管理和使用功能强大的API从未如此简单。
使用工具:eclipse,jdk7,maven,spring
使用方法:
首先你得有自己的一个能访问的api代码,一个简单的demo就可以,然后我们开始添加代码
1.maven依赖:
<!-- swagger-springmvc dependencies -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>15.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.4.4</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.4.4</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.4.4</version>
</dependency>
<dependency>
<groupId>com.fasterxml</groupId>
<artifactId>classmate</artifactId>
<version>1.1.0</version>
</dependency>
<!-- CORS配置,为了让别的机器访问本机的swagger接口文档服务 -->
<dependency>
<groupId>com.thetransactioncompany</groupId>
<artifactId>cors-filter</artifactId>
<version>2.5</version>
2.我们在代码中添加SwaggerConfig配置类:
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import com.mangofactory.swagger.configuration.SpringSwaggerConfig;
import com.mangofactory.swagger.models.dto.ApiInfo;
import com.mangofactory.swagger.plugin.EnableSwagger;
import com.mangofactory.swagger.plugin.SwaggerSpringMvcPlugin;
@Configuration
@EnableSwagger
@EnableWebMvc
public class SwaggerConfig {
private SpringSwaggerConfig springSwaggerConfig;
/**
* Required to autowire SpringSwaggerConfig
*/
@Autowired
public void setSpringSwaggerConfig(SpringSwaggerConfig springSwaggerConfig) {
this.springSwaggerConfig = springSwaggerConfig;
}
/**
* Every SwaggerSpringMvcPlugin bean is picked up by the swagger-mvc
* framework - allowing for multiple swagger groups i.e. same code base
* multiple swagger resource listings.
*/
@Bean
public SwaggerSpringMvcPlugin customImplementation() {
return new SwaggerSpringMvcPlugin(this.springSwaggerConfig).apiInfo(apiInfo()).includePatterns(".*?");
}
private ApiInfo apiInfo() {
ApiInfo apiInfo = new ApiInfo(
"ums接口文档",
"这里是所有的ums接口,里边含有说明,请自行测试",
"My Apps API terms of service",
"My Apps API Contact Email",
"My Apps API Licence Type",
"My Apps API License URL");
return apiInfo;
}
}
这里得有一个注意的地方, @EnableWebMvc注解,在网上的大部分代码中都没有这个注解,小编做的时候也遇到了很大的麻烦,会报SwaggerConfig类不能自动装载,加上了这个就好了,具体用法大家想了解的自行查找。
3.springMVC配置文件中加上这段代码:
<!-- swagger测试 :注入SpringSwaggerConfig-->
<beanclass="com.mangofactory.swagger.configuration.SpringSwaggerConfig"/>
4.添加测试类:
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import com.wordnik.swagger.annotations.ApiOperation;
import com.wordnik.swagger.annotations.ApiParam;
@RequestMapping(value = "/rs/swagger")
@Controller
public class SwaggerTestController {
/**
* 根据用户名获取用户对象
* @param name
* @return
*/
@RequestMapping(value="/name/{name}", method = RequestMethod.GET)
@ResponseBody
@ApiOperation(value = "根据用户名获", httpMethod = "GET", response = UserDTO.class, notes = "根据用户名获取用户对象")
public UserDTO getUserByName(@ApiParam(required = true, name = "name", value = "用户名") @PathVariable String name) throws Exception{
UserDTO ucUser = new UserDTO();
ucUser.setLoginName("测试账号");
return ucUser;
}
/**
* 根据用户名获取用户对象
* @param name
* @return
*/
@RequestMapping(value="/age/{age}", method = RequestMethod.GET)
@ResponseBody
@ApiOperation(value = "根据", httpMethod = "GET", response = UserDTO.class, notes = "根据用户名获取用户对象")
public UserDTO getUserByaa(@ApiParam(required = true, name = "name", value = "用户名") @PathVariable String name) throws Exception{
UserDTO ucUser = new UserDTO();
ucUser.setLoginName("测试账号");
return ucUser;
}
}
UserDTO这个类大家可自行定义。
经过这几步之后你就可以看到返回的数据了,但是是json的格式,下面我们来配置swagger:
-
大家首先去官网下载压缩包,解压之后将里边的dist文件直接复制到项目中的src下边的main下的webapp中,改名为apidocs(为了直观),之后的效果是这样的:
2.打开apidocs中的index.html文件,搜索http://petstore.swagger.io/v2/swagger.json,修改格式为http://ip:端口/项目名/api-docs
3.tomcat:run启动tomcat项目,或者放到本地的tomcat中,在浏览器中输入访问地址即可访问到swagger主页:我的主页是这样的(汉化之后):
4.这时候遇到了一个问题:本机可以访问但是别的机器不能访问,这样我们就失去了这个技术的初衷,别的机器访问的时候回报错:原因是cors跨域限制,这时候我们在web.xml中假如一段代码即可:
<!-- cors配置 -->
<filter>
<filter-name>CORS</filter-name>
<filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
<init-param>
<param-name>cors.allowOrigin</param-name>
<param-value>*</param-value>
</init-param>
<init-param>
<param-name>cors.supportedMethods</param-name>
<param-value>GET, POST, HEAD, PUT, DELETE</param-value>
</init-param>
<init-param>
<param-name>cors.supportedHeaders</param-name>
<param-value>Accept, Origin, X-Requested-With, Content-Type, Last-Modified</param-value>
</init-param>
<init-param>
<param-name>cors.exposedHeaders</param-name>
<param-value>Set-Cookie</param-value>
</init-param>
<init-param>
<param-name>cors.supportsCredentials</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CORS</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>