Thrift的使用

java操作Thrift

thrift的原理及使用介绍可参考http://dongxicheng.org/search-engine/thrift-framework-intro/

 

1：下载thrift并解压

下载地址：http://thrift.apache.org/download/

 

2：编写Thrift文件（定义接口，结构，异常等）,保存为demoHelllo.thrift

namespace java com.micmiu.thrift.demo 
HelloWorldService1 { 
string sayHello(1:String username)
 }

3.生成接口代码 

把thrift-0.9.0.exe和test.thrift文件放在同一个目录，当然也可以把thrift-0.6.1.exe文件放进环境变量

进入DOS命令执行：thrift-0.9.0.exe -r -gen java ./demoHello.thrift

生成文件 gen-java/com/ micmiu /thrift/demo/demoHello.java

4.编写服务端接口实现类

在POM.xml文件加入以下依赖：

?

<dependency>

      <groupId>org.apache.thrift</groupId>

      <artifactId>libthrift</artifactId>

      <version>0.9.0</version>

  </dependency>

  把生成的demoHello.java复制到项目下,并编写实现类HelloWorldImpl如下：

 

package com.micmiu.thrift.demo;



import org.apache.thrift.TException;

/**
 * blog http://www.micmiu.com
 *
 * @author Michael
 *
 */
public class HelloWorldImpl implements HelloWorldService.Iface {

	public HelloWorldImpl() {
	}

	public String sayHello(String username) throws TException {
		return "Hi," + username + " welcome to my blog www.micmiu.com";
	}

}

 

 

5.编写启动服务代码

 

package com.micmiu.thrift.demo;

import org.apache.thrift.TProcessor;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TCompactProtocol;
import org.apache.thrift.protocol.TJSONProtocol;
import org.apache.thrift.protocol.TSimpleJSONProtocol;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TSimpleServer;
import org.apache.thrift.transport.TServerSocket;
public class HelloServerDemo {
	public static final int SERVER_PORT = 8090;

	public void startServer() {
		try {
			System.out.println("HelloWorld TSimpleServer start ....");

			TProcessor tprocessor = new HelloWorldService.Processor<HelloWorldService.Iface>(
					new HelloWorldImpl());
			// HelloWorldService.Processor<HelloWorldService.Iface> tprocessor =
			// new HelloWorldService.Processor<HelloWorldService.Iface>(
			// new HelloWorldImpl());

			// 简单的单线程服务模型，一般用于测试
			TServerSocket serverTransport = new TServerSocket(SERVER_PORT);
			TServer.Args tArgs = new TServer.Args(serverTransport);
			tArgs.processor(tprocessor);
			tArgs.protocolFactory(new TBinaryProtocol.Factory());
			// tArgs.protocolFactory(new TCompactProtocol.Factory());
			// tArgs.protocolFactory(new TJSONProtocol.Factory());
			TServer server = new TSimpleServer(tArgs);
			server.serve();

		} catch (Exception e) {
			System.out.println("Server start error!!!");
			e.printStackTrace();
		}
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		HelloServerDemo server = new HelloServerDemo();
		server.startServer();
	}

}

 6.编写客户端代码

package com.micmiu.thrift.demo;


import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TCompactProtocol;
import org.apache.thrift.protocol.TJSONProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;
import org.apache.thrift.transport.TTransportException;

/**
 * blog http://www.micmiu.com
 *
 * @author Michael
 *
 */
public class HelloClientDemo {

	public static final String SERVER_IP = "localhost";
	public static final int SERVER_PORT = 8090;
	public static final int TIMEOUT = 30000;

	/**
	 *
	 * @param userName
	 */
	public void startClient(String userName) {
		TTransport transport = null;
		try {
			transport = new TSocket(SERVER_IP, SERVER_PORT, TIMEOUT);
			// 协议要和服务端一致
			TProtocol protocol = new TBinaryProtocol(transport);
			// TProtocol protocol = new TCompactProtocol(transport);
			// TProtocol protocol = new TJSONProtocol(transport);
			HelloWorldService.Client client = new HelloWorldService.Client(
					protocol);
			transport.open();
			String result = client.sayHello(userName);
			System.out.println("Thrify client result =: " + result);
		} catch (TTransportException e) {
			e.printStackTrace();
		} catch (TException e) {
			e.printStackTrace();
		} finally {
			if (null != transport) {
				transport.close();
			}
		}
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		HelloClientDemo client = new HelloClientDemo();
		client.startClient("Michael");

	}

}

 7.启动

首先启动HelloServerDemo

显示：

HelloWorld TSimpleServer start ....

然后启动HelloClientDemo

HelloServerDemo console显示

Thrify client result =: Hi,Michael welcome to my blog www.micmiu.com

 参考blog：http://www.cnblogs.com/johnc/archive/2011/06/19/2084508.html