Apache CXF REST WebService简单应用

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　　<p>      本文目的就项目中的Apache CXF中的REST WebService风格的展现。下面言归正传，看实惠，代码如下：

　　</p>

package com.easyway.rest.webservice;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import org.apache.cxf.jaxrs.ext.MessageContext;
/**
* Apache CXF REST方式发布WebService的总结
* 1.定义Apache CXF CXFServlet的服务发布拦截类
*    org.apache.cxf.transport.servlet.CXFServlet;
* 2.定义相关REST WebService的服务类
*      RestWebService
* 3.在相关的Spring的配置文件配置相关的参数
*   <pre>
*     <import resource="classpath:META-INF/cxf/cxf-all.xml"/>
*              
*<http-conf:conduit name="*.http-conduit">
*<http-conf:client ReceiveTimeout="600000" ConnectionTimeout="600000"/><!-- 10分钟 -->
*</http-conf:conduit>
*
*
*        <bean id="RestWSBean" class="com.easyway.rest.webservice.RestWebService"/>
*        
*        <jaxrs:server id="RestWS" address="/restWS">
*<jaxrs:serviceBeans>
*<ref bean="restService" />
*</jaxrs:serviceBeans>
*</jaxrs:server>
* </pre>
* 4.发布相关的Web服务
*   查看相关的服务：
*    例如：
*       http://localhost:8080/ApacheCXFREST/service/
*        ApacheCXFREST为Web项目上下文
*        service为Apache CXF在Web.xml容器中配置的拦截路径
*   查看WADL的路径：
*      http://localhost:8080/ApacheCXFREST/service/restWS?_wadl&_type=xml
*        ApacheCXFREST为Web项目上下文
*        service为Apache CXF在Web.xml容器中配置的拦截路径
*        restWS为Spring的中配置的REST服务的拦截的路径
*        _wadl&_type=xml为WADL的协议的格式
*        
*         <resources base="http://localhost:8080/ApacheCXFREST/service/restWS">
* <resource path="/rest">
* <method name="GET">
* ..............
*   请求的路径=resources元的base属性+resource元素的path属性
*      例如：http://localhost:8080/ApacheCXFREST/service/restWS/rest
* 5.请求相关的服务
*   例如
*
* @author longgangbai
*
*/
@Path("/rest")
public class RestWebService {
private MessageContext messageContext;

/**
* 存储发送的数据
* @param messageContext
*/
@Context
public void setMessageContext(MessageContext messageContext) {
this.messageContext = messageContext;
}
/**
*
* 领导慰问士兵们的
*
* @param username xx
* @return
*/
@GET()
@Consumes(MediaType.TEXT_PLAIN)
public String helloworld(){
return "xx说： 同志们辛苦了 !!   ";
}
/**
*   当需要Servlet环境采用注释中的内容获取客户端中的Servlet环境的中的各种信息
*   如上传，下载之类，可能需要知道比较多的信息
*   采用这种方式
*   
@SuppressWarnings("unchecked")
@POST
@Produces(MediaType.TEXT_PLAIN)
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public String postMethod(MultivaluedMap<String, Object> formParams){
Map<String,Object> requestMap=null;
boolean isGet=false;
if(formParams!=null){
requestMap=(Map)formParams;
}else{
try {
this.messageContext.getHttpServletRequest().setCharacterEncoding("UTF-8");
this.messageContext.getHttpServletResponse().setCharacterEncoding("UTF-8");
} catch (UnsupportedEncodingException e1) {
e1.printStackTrace();
}
requestMap=this.messageContext.getHttpServletRequest().getParameterMap();
isGet=true;
}
return "";
}
*/

/**
*广大士兵 回答
* @return
*/
@POST()
@Produces(MediaType.TEXT_PLAIN)
public String service(){
return "士兵说：为人民服务";
}
}

　　spring关于rest配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jaxrs="http://cxf.apache.org/jaxrs"
xmlns:jaxws="http://cxf.apache.org/jaxws"
xmlns:http-conf="http://cxf.apache.org/transports/http/configuration"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxrs
http://cxf.apache.org/schemas/jaxrs.xsd
http://cxf.apache.org/jaxws
http://cxf.apache.org/schemas/jaxws.xsd
http://cxf.apache.org/transports/http/configuration http://cxf.apache.org/schemas/configuration/http-conf.xsd">
<!-- 针对CXF发布服务的需要的配置的加载的导入 -->
<import resource="classpath:META-INF/cxf/cxf-all.xml"/>
<!-- 设置服务相关的请求的配置 -->        
<http-conf:conduit name="*.http-conduit">
<http-conf:client ReceiveTimeout="600000" ConnectionTimeout="600000"/><!-- 10分钟 -->
</http-conf:conduit>
<!--
设置需要发布的bean
-->
<bean id="RestWSBean" class="com.easyway.rest.webservice.RestWebService"/>
<!--
发布相关的WebService
-->
<jaxrs:server id="RestWS" address="/restWS">
<jaxrs:serviceBeans>
<ref bean="RestWSBean" />
</jaxrs:serviceBeans>
</jaxrs:server>

</beans>
　　web.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<display-name>RESTWebServices</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContent-*-services.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<servlet>
<servlet-name>CXFServlet</servlet-name>
<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>CXFServlet</servlet-name>
<url-pattern>/service/*</url-pattern>
</servlet-mapping>
</web-app>