Apache Thrift -2 - Code Demo_apache thrift java demo-优快云博客

本文链接：https://blog.youkuaiyun.com/Simba_cheng/article/details/78378136

本文介绍如何使用 Apache Thrift 构建简单的远程过程调用（RPC）应用。通过一个打招呼服务的示例，详细展示了从定义服务接口到实现服务端与客户端交互的全过程。

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Apache Thrift 代码Demo，一个小栗子

注意 :

首先要安装thrift.exe thrift.exe的版本和jar包的版本最好保持一致.

代码结构

thrift文件

demoHello.java

service HelloWorldService{
	string sayHello(1:string username)
}

使用Thrift.exe生成Service代码

1. 进入thrift文件所在的目录.

2. 使用命令行 thrift -gen java demoHello.thrift

这里需要说明一下 : -gen java 是命令参数 , 最后生成的Java代码包的路径 , 也是-gen java命名的…

3.然后将HelloWorldService.java 放在thrift目录下面就好了.. 将-gen java 删除.

4.最后是这个样子.

编写接口 ( HelloWorldImpl.java )

1. 该接口实现刚才生成的 Service代码 , 这里 implements 的时候 , 要注意一个'.Iface'

2. 所有业务的方法都是在接口实现中进行处理的.

import com.thrift.thrift_1.thrift.HelloWorldService;
import org.apache.thrift.TException;

public class HelloWorldImpl implements HelloWorldService.Iface {

	public HelloWorldImpl() {
	}

	@Override
	public String sayHello(String username) throws TException {

		System.out.println("Server Hello : " + username);

		return "Hi , " + username + " welcome to here";
	}
}

编写服务端( HelloServerDemo.java )

import com.thrift.thrift_1.impl.HelloWorldImpl;
import com.thrift.thrift_1.thrift.HelloWorldService;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TSimpleServer;
import org.apache.thrift.transport.TServerSocket;

import java.io.IOException;
import java.net.ServerSocket;

/**
* 服务端
*/
public class HelloServerDemo {
public static final int SERVER_PORT = 9099;

public static void main(String[] args) {
	try {
		ServerSocket socket = new ServerSocket(SERVER_PORT);
		TServerSocket serverTransport = new TServerSocket(socket);
		HelloWorldService.Processor processor = new HelloWorldService.Processor(new HelloWorldImpl());
		TServer.Args tArgs = new TServer.Args(serverTransport);
		tArgs.processor(processor);
		tArgs.protocolFactory(new TBinaryProtocol.Factory());
		TServer server = new TSimpleServer(tArgs);

		System.out.println("Running server....");
		server.serve();
	} catch (IOException e) {
		e.printStackTrace();
	}
}
}

编写客户端( HelloClientDemo.java )

import com.thrift.thrift_1.thrift.HelloWorldService;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;

public class HelloClientDemo {

public static final String SERVER_IP = "localhost";
public static final int SERVER_PORT = 9099;
public static final int TIMEOUT = 30000;

public static void main(String[] args) throws Exception{
	startClient("CYX");
}

public static void startClient(String username) throws Exception{

	TTransport transport = null;

	try {
		transport = new TSocket(SERVER_IP, SERVER_PORT, TIMEOUT);

		TProtocol protocol = new TBinaryProtocol(transport);
		HelloWorldService.Client client = new HelloWorldService.Client(protocol);
		transport.open();

		String result = client.sayHello(username);
		System.out.println("Thrift client result = " + result);
	} catch (Exception e) {
		e.printStackTrace();
	}
}
}