thrift 根本应用

thrift 基本应用
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简单的实现一个PING的功能

1.安装thrift

http://thrift.apache.org/download/

人人网镜像下载:

http://labs.renren.com/apache-mirror/thrift/0.6.1/thrift-0.6.1.exe

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


namespace java net.johnc.thriftservice Test{ 

void ping(1: i32 length)

}


3.生成接口代码

把thrift-0.6.1.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-0.6.1.exe --gen java test.thrift

生成文件 gen-java/net/johnc/thrift/Test.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>0.6.1</version>
</dependency>


  把生成的Test.java复制到项目下 并实现该接口

 package net.johnc.thrift;
 2 
 3  import org.apache.thrift.TException;
 4 
 5  public class TestImpl implements Test.Iface {
 6 
 7     public void ping(int length) throws TException {
 8         System.out.println("calling ping ,length=" + length);
 9     }
10 
11 }

5.编写启动服务代码

package net.johnc.thrift;
 
  import net.johnc.thrift.Test.Processor;
 
  import org.apache.thrift.protocol.TBinaryProtocol;
  import org.apache.thrift.protocol.TBinaryProtocol.Factory;
  import org.apache.thrift.server.TServer;
  import org.apache.thrift.server.TThreadPoolServer;
  import org.apache.thrift.server.TThreadPoolServer.Args;
  import org.apache.thrift.transport.TServerSocket;
  import org.apache.thrift.transport.TTransportException;
 
  public class Server {
     public void startServer() {
         try {
 
             TServerSocket serverTransport = new TServerSocket(1234);
 
             Test.Processor process = new Processor(new TestImpl());
 
             Factory portFactory = new TBinaryProtocol.Factory(true, true);
 
             Args args = new Args(serverTransport);
             args.processor(process);
             args.protocolFactory(portFactory);
 
             TServer server = new TThreadPoolServer(args);
             server.serve();
         } catch (TTransportException e) {
             e.printStackTrace();
         }
     }
 
     public static void main(String[] args) {
         Server server = new Server();
         server.startServer();
     }
 }

6.编写客户端代码

package net.johnc.thrift;
 
  import org.apache.thrift.TException;
  import org.apache.thrift.protocol.TBinaryProtocol;
  import org.apache.thrift.protocol.TProtocol;
  import org.apache.thrift.transport.TSocket;
  import org.apache.thrift.transport.TTransport;
  import org.apache.thrift.transport.TTransportException;
 
  public class Client {
 
     public void startClient() {
         TTransport transport;
         try {
             transport = new TSocket("localhost", 1234);
             TProtocol protocol = new TBinaryProtocol(transport);
             Test.Client client = new Test.Client(protocol);
             transport.open();
             client.ping(2012);
             transport.close();
         } catch (TTransportException e) {
             e.printStackTrace();
         } catch (TException e) {
             e.printStackTrace();
         }
     }
 
     public static void main(String[] args) {
         Client client = new Client();
         client.startClient();
     }
 }