Java thrift服务器和客户端创建实例

首先环境介绍一下：

1.IntelliJ IDEA 2017.1

2.thrift-0.9.3

相信大家在看我这篇文章的时候已经对thrift通信框架已有所调研，这里就不再赘述了，直接进入正题：

<1>创建HelloWorld.thrift

namespace java com.thrift.demo

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

<2>利用thrift生成HelloWorld.java文件，cmd指令下进入thrift当前目录下输入命令

thrift.exe -gen java HelloWorld.thrift

java为要生成文件的类型,HelloWorld.thrift为前面的文件。

<3>创建IDEA 下的maven项目，其中的好处就不一一说明了，最重要的一条就是可以在pom.xml文件中添加dependency，能够在项目中自行下载库文件，方便协同开发中出现的开发包不对应的情况。

<dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.thrift</groupId>
            <artifactId>libthrift</artifactId>
            <version>0.9.3</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.5</version>
        </dependency>

上述pom引入相应的依赖项就可以让它自行下载。

<4>项目的结构图当前如下所示：

File--Project Structure--Modules，在main文件夹下新建java文件夹并设为Soueces类型（因为在Sources文件下可以新建java class文件）

同时将thrift生成的HelloWorld.java文件复制到该目录下

<5>实现接口Iface

java代码：HelloWorldImpl.java

 package com.jmust.thrift.demo;

 import org.apache.thrift.TException;

 /**
  * Created by Administrator on 2017/3/31.
  */
 public class HelloWorldImpl implements HelloWorldService.Iface {

     public HelloWorldImpl() {
     }

     @Override
     public String sayHello(String username) throws TException {
         return "Hi,"+username+"Welcome to my blog http://www.cnblogs.com/zfygiser";
     }
 }

<6>服务端TSimpleServer

java代码：HelloServer.java

/**
 * Created by Administrator on 2017/3/31.
 */
package com.jmust.thrift.demo;

import org.apache.thrift.TProcessor;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TSimpleServer;
import org.apache.thrift.transport.TServerSocket;

public class HelloServer {
    public final static int SERVER_PORT = 7099;
    private static String SERVER_IP = "localhost";

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

            TServerSocket serverTransport = new TServerSocket(SERVER_PORT);
            TServer.Args args = new TServer.Args(serverTransport);
            TProcessor process = new HelloWorldService.Processor(new HelloWorldImpl());
            TBinaryProtocol.Factory portFactory = new TBinaryProtocol.Factory(true, true);
            args.processor(process);
            args.protocolFactory(portFactory);

            TServer server = new TSimpleServer(args);
            server.serve();

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

    public static void main(String[] args) {
        HelloServer server = new HelloServer();
        server.startServer();
    }
}

<7>编写客户端代码

java代码：Client.java

package com.jmust.thrift.demo;

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

/**
 * Created by Administrator on 2017/4/1.
 */
public class Client {
    public static final int SERVER_PORT = 7099;
    public static final String SERVER_IP = "localhost";

    public void startClient(String username) {
        TTransport tTransport = null;
        try {
            tTransport = new TSocket(SERVER_IP, SERVER_PORT);
            //协议要和服务端一致
            TProtocol protocol = new TBinaryProtocol(tTransport);
            HelloWorldService.Client client = new HelloWorldService.Client(protocol);
            tTransport.open();

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

    public static void main(String[] args) {
        Client client = new Client();
        client.startClient("zfy");
    }
}

客户端测试成功，截图如下：