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rest版的webservice
为了学习app做打算 今天就自学了下webservice，rest应该是其中一种 还有种就是soap，目前就先举个rest的demo吧
准备ws的jar和spring的jar，如何要连接数据的话就自行准备这边就不提供了
下载jar：http://download.csdn.net/detail/taopeng_100/7827035
下载好jar之后将其放入lib下就可以进行配置了
创建个项目 名叫wsTest
首先配置spring配置文件spring-source.xml 代码如下：
<?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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jaxws="http://cxf.apache.org/jaxws" xmlns:jaxrs="http://cxf.apache.org/jaxrs" xmlns:jee="http://www.springframework.org/schema/jee" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd"> <context:annotation-config /> <context:component-scan base-package="com.tp.soft.web.*" /> <import resource="classpath:META-INF/cxf/cxf.xml" /> <import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" /> <import resource="classpath:META-INF/cxf/cxf-servlet.xml" /> <jaxrs:server id="restServiceContainer" address="/rest"> <jaxrs:serviceBeans> <bean class="com.tp.soft.web.ws.impl.LoginServiceImpl" /> </jaxrs:serviceBeans> <jaxrs:extensionMappings> <entry key="json" value=http://www.mamicode.com/"application/json" /> <entry key="xml" value=http://www.mamicode.com/"application/xml" /> </jaxrs:extensionMappings> <jaxrs:languageMappings> <entry key="en" value=http://www.mamicode.com/"en-gb"></entry> </jaxrs:languageMappings> <jaxrs:providers> <bean class="org.codehaus.jackson.jaxrs.JacksonJsonProvider" /> </jaxrs:providers> </jaxrs:server></beans>
然后在web.xml里进行配置，代码如下：
<?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" version="2.5"> <display-name>webService</display-name> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-source.xml</param-value> </context-param> <servlet> <display-name>CXFServlet</display-name> <servlet-name>CXFServlet</servlet-name> <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>CXFServlet</servlet-name> <url-pattern>/ws/*</url-pattern> </servlet-mapping> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener></web-app>
然后就是写接口了
package com.tp.soft.web.ws;import java.util.Map;import javax.jws.WebService;@WebServicepublic interface LoginService { public abstract Map<String, Object> doLogin(String username, String password);}
实现类做了个很简单的传入账号密码 返回一个账号密码对象的json代码：
package com.tp.soft.web.ws.impl;import java.util.HashMap;import java.util.Map;import javax.ws.rs.FormParam;import javax.ws.rs.POST;import javax.ws.rs.Path;import javax.ws.rs.Produces;import javax.ws.rs.core.MediaType;import com.tp.soft.web.common.entity.Result;import com.tp.soft.web.entity.User;import com.tp.soft.web.ws.LoginService;@Path("/loginService")public class LoginServiceImpl implements LoginService{ @POST @Path(value="/login") @Produces(MediaType.APPLICATION_JSON) public Map<String, Object> doLogin(@FormParam(value=http://www.mamicode.com/"username") String username, @FormParam(value=http://www.mamicode.com/"password") String password) { Result result = new Result(); if(username.equals("zs") && password.equals("123")){ User user = new User(); user.setUsername(username); user.setPassword(password); Map<String, Object> map = new HashMap<String, Object>(); map.put("user", user); result.setMap(map); return map; } return null; }}
此时可以直接通过浏览器访问地址：http://xxx.xxx.xx.x:8081/wsTest/ws/rest/loginService/login?username="zs"&password="123" 特别注意这边访问的是通过get的 如果要能访问就要讲@POST改成@GET
服务器写好了，下面就来写客服端的代码，客户端主要就是获取user对象的json，代码如下：
package com.tp.soft.client;import java.io.IOException;import java.util.Map;import org.apache.commons.httpclient.HttpClient;import org.apache.commons.httpclient.HttpException;import org.apache.commons.httpclient.NameValuePair;import org.apache.commons.httpclient.methods.PostMethod;import com.google.gson.Gson;import com.google.gson.GsonBuilder;import com.google.gson.reflect.TypeToken;public class A { public static void main(String[] args) { String url = "http://122.226.178.54:8081/wsTest1/ws/rest/loginService/login"; HttpClient client = new HttpClient(); PostMethod method = new PostMethod(url); NameValuePair[] data = {new NameValuePair("username", "zs"), new NameValuePair("password", "123")}; method.setRequestBody(data); try { int statusCode = client.executeMethod(method); if(statusCode == 200){ String strJson = method.getResponseBodyAsString(); System.out.println(strJson); Gson gson = new GsonBuilder().create(); Map<String, User> map = gson.fromJson(strJson, new TypeToken<Map<String, User>>(){}.getType()); System.out.println(map.get("user").getUsername()); } } catch (HttpException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }}
运行下就能看到结果了
rest版的webservice
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