闲着没事 Burlap开发学习 总结

       前面总结关于Hessian的开发WebService的方法，在Caucho公司开发的有两种实现远程访问调用方式：Hessian和Burlap。

 

Burlap 简介
Burlap也是有caucho提供，它和hessian的不同在于，它是基于XML-RPC协议的。
1、是基于什么协议实现的？
基于XML-RPC协议实现。
2、怎么发起请求？
根据Burlap提供的API。
3、怎么将请求转化为符合协议的格式的？
将请求信息转化为符合协议的XML格式，转化为流进行传输。
4、使用什么传输协议传输？
Http协议。
5、响应端基于什么机制来接收请求？
监听Http请求。
6、怎么将流还原为传输格式的？
根据XML-RPC协议进行还原。
7、处理完毕后怎么回应？
返回结果写入XML中，由Burlap返回至调用端。

声明服务端接口：

package com.easyway.caucho.burlap.ws;

import java.util.List;
/**
 * 声明服务端相关的服务
 * @author longgangbai
 *
 */
public interface IBurlapService {
	
	public String getUserName();
	
	public List<String> getList();
	
	public void setGreeting(String greeting);
	
	public String hello();

}

 

实现服务端的服务代码示例如下：

package com.easyway.caucho.burlap.ws;

import java.util.ArrayList;
import java.util.List;

import com.caucho.burlap.server.BurlapServlet;
/**
 * 
 * 在Burlap中服务端的必须继承BurlapServlet 类同时实现相关的服务的接口
 * 
 * @author longgangbai
 *
 */
public class BurlapWS  extends BurlapServlet  implements IBurlapService{
	private String _greeting = "Hello, world";
	/**
	 * 
	 */
	  public void setGreeting(String greeting)
	  {
	    _greeting = greeting;
	  }
	/**
	 * 
	 */
	  public String hello()
	  {
	    return _greeting;
	  }
	  /**
	   * 
	   */
	public List<String> getList() {
	   List<String> strList=new ArrayList<String>();
	   strList.add("a"); strList.add("c"); 
	   strList.add("b"); strList.add("d"); 
	   strList.add("e"); strList.add("g"); 
	   strList.add("h"); strList.add("j");
	   strList.add("k"); strList.add("l");
	   strList.add("q");
		return strList;
	}
	/**
	 * 
	 */
	public String getUserName() {
		return _greeting;
	}

}

 

客户端访问代码如下：

package com.easyway.caucho.burlap.ws;

import java.net.MalformedURLException;

import com.caucho.burlap.client.BurlapProxyFactory;
/**
 * Burlap客户端测试代码
 * @author longgangbai
 *
 */
public class BurlapServiceWSClient {
	public static void main(String[] args) {
		String url = "http://localhost:8080/BurlapWS/remoting/burlapWs";

		BurlapProxyFactory factory = new BurlapProxyFactory();
		IBurlapService basic;
		try {
			basic = (IBurlapService) factory.create(IBurlapService.class, url);

			System.out.println("hello(): " + basic.getUserName());
			System.out.println("getList(): " + basic.getUserName());
			
		} catch (MalformedURLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}

 

web.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
	<servlet>
	    <servlet-name>burlapWs</servlet-name>
	    <servlet-class>com.easyway.caucho.burlap.ws.BurlapWS</servlet-class>
	</servlet>
	<servlet-mapping>
	    <servlet-name>burlapWs</servlet-name>
	    <url-pattern>/remoting/burlapWs</url-pattern>
	</servlet-mapping>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>