学习了以下Hession使用，下面说明一下如何使用(网上有先人弄过例子的),这里仅仅个人学习交流使用
1.需要JAR
hessian-3.2.1.jar(JAVA 版本的)
2.代码
服务端接口
IBasic.java
package hessian;import java.util.List;import java.util.Map;/*********************************************************************** * * IBasic.java * @copyright Copyright: 2009-2012 * @creator 周辉<br/> * @create-time May 21, 2009 3:38:06 PM * @revision $Id: * ***********************************************************************/public interface IBasic { /** * 测试字符串 * @return */ public String hello(); /** * 取一辆汽车 测试对象传递 * @return */ public Car getCar(); /** * 取得list 数据 * @return */ public List<String> getList(); /** * 取得map 数据 * @return */ public Map<String,String> getMap(); /** * 保存数据 * @param map */ public void setMap(Map<String,Car> map);}
服务端实现类代码 BasicService.java
package hessian;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;/******************************************************************************* * * BasicService.java * * @copyright Copyright: 2009-2012 * @creator 周辉<br/> * @create-time May 21, 2009 3:39:21 PM * @revision $Id: * ******************************************************************************/public class BasicService implements IBasic { /** * 取一辆汽车 测试对象传递 * * @return */ public Car getCar() { Car car = new Car(); car.setColor("RED红色"); car.setLength("2400"); car.setName("HAHACHE"); return car; } /** * 测试字符串 * * @return */ public String hello() { return "hello zhouhui"; } /** * 取得list 数据 * * @return */ public List<String> getList() { List<String> list = new ArrayList<String>(); list.add("1"); list.add("2"); list.add("3"); return list; } /** * 取得map 数据 * * @return */ public Map<String, String> getMap() { Map<String, String> map = new HashMap<String, String>(); if (map.isEmpty()) { map.put("1", "zhouhui1"); map.put("2", "zhouhui2"); map.put("3", "zhouhui3"); } return map; } /** * 保存数据 * * @param map */ public void setMap(Map<String, Car> map) { for (Map.Entry<String, Car> item : map.entrySet()) { System.out.println("mapkey: " + item.getKey()); System.out.println("mapvalue: " + item.getValue().getColor()); System.out.println("mapvalue: " + item.getValue().getName()); } }}
一个封装的JAVABEAN
Car.java
package hessian;import java.io.Serializable;/*********************************************************************** * * Car.java * @copyright Copyright: 2009-2012 * @creator 周辉<br/> * @create-time May 21, 2009 3:38:21 PM * @revision $Id: * ***********************************************************************/public class Car implements Serializable { private String color; private String length; private String name; public String getColor() { return color; } public void setColor(String color) { this.color = color; } public String getLength() { return length; } public void setLength(String length) { this.length = length; } public String getName() { return name; } public void setName(String name) { this.name = name; }}
配置WEB.xml
<?xml version="1.0" encoding="UTF-8"?><web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <servlet> <servlet-name>HessianServlet</servlet-name> <servlet-class> com.caucho.hessian.server.HessianServlet </servlet-class> <init-param> <param-name>home-class</param-name> <param-value>hessian.BasicService</param-value> </init-param> <init-param> <param-name>home-api</param-name> <param-value>hessian.IBasic</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>HessianServlet</servlet-name> <url-pattern>/hessianServlet</url-pattern> </servlet-mapping> </web-app>
最后客户端调用的代码
testClient.java
package hessian;import java.util.HashMap;import java.util.List;import java.util.Map;import com.caucho.hessian.client.HessianProxyFactory;/*********************************************************************** * * testClient.java * @copyright Copyright: 2009-2012 * @creator 周辉<br/> * @create-time May 21, 2009 3:44:45 PM * @revision $Id: * ***********************************************************************/public class testClient { /** * @param args */ public static void main(String[] args)throws Exception { // TODO Auto-generated method stub String url = "http://127.0.0.1:8081/testHession/hessianServlet"; HessianProxyFactory factory = new HessianProxyFactory(); IBasic basic = (IBasic) factory.create(IBasic.class, url); Car car = basic.getCar(); // 客户端调用服务端list 数据 List<String> list =basic.getList(); for (String s :list){ System.out.println("list: " + s); } System.out.println("Hello: " + basic.hello()); System.out.println("Hello: " + car.getName()); // 客户端调用服务端MAP 数据 Map<String,String> map =basic.getMap(); for(Map.Entry<String,String> item:map.entrySet()){ System.out.println("mapkey: " +item.getKey()); System.out.println("mapvalue: " +item.getValue()); } // 客户端向服务端发送数据 Map<String,Car> map2 = new HashMap<String,Car>(); if(map2.isEmpty()){ Car c = new Car(); c.setColor("red"); c.setLength("111"); c.setName("zhouhui"); map2.put("1", c); map2.put("2", c); map2.put("3", c); } basic.setMap(map2); }}
最后启动TOMCAT,发布好服务后,启动testClient.java 调用服务代码
客户端控制台打出调用服务的输出结果
在从TOMCAT 服务控制台查看客户端口输入数据
好了一切OK 了
注意点：
自定义JAVABEAN 一定要序列化[color=red]implements Serializable [/color]
否则会报错
Caused by: java.io.IOException: Server returned HTTP response code: 500 for URL: http://127.0.0.1:8081/testHession/hessianServlet
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1296)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1290)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:944)
at com.caucho.hessian.client.HessianProxy.invoke(HessianProxy.java:184)
相关资源：敏捷开发V1.0.pptx
