最近因为工作需要，需要使用thrift作为中间语言进行开发，空闲之余写这篇文章作为笔记，也提供给新手作为入门之用。
官网对thrift解释如下:

The Apache Thrift software framework, for scalable cross-language services development, combines a software stack with a code generation engine to build services that work efficiently and seamlessly between C++, Java, Python, PHP, Ruby, Erlang, Perl, Haskell, C#, Cocoa, JavaScript, Node.js, Smalltalk, OCaml and Delphi and other languages.

好吧，简单来说，thrift是一种可用于RPC通信，C/S（客户端/服务器）结构的，跨语言的IDL（Interface Description Language）。跨语言使得客户端服务器可以用不同语言进行开发，能显著提高开发的效率和灵活性。

• 安装篇
  • 笔者写这篇文章时候已经0.9.x 的版本了，下载地址： http://thrift.apache.org/download
  • 执行命令（根据自己使用版本替换文件和目录名称）：

tar xvzf thrift.tar.gz
cd thrift
./configure && make
sudo make install

- 执行thrift命令，观察是否有Usage信息输出，如果有，恭喜，安装已经成功

• 运行调试篇
  • 运行环境jdk1.8，maven，intellij idea

  • 笔者选用的文件目录树，读者也可自行安排

    Paste_Image.png

  • 在pom.xml中添加以下依赖（thrift依赖根据使用的版本自行添加）：

<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>1.5.8</version>
</dependency>

- 编写demoHello.thrift代码：

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

- 将代码转换为java语言，并把代码移动到上图所示main/java（如果对java目录树比较熟悉随意）

thrift -gen java demoHello.thrift

- 现在已经有HelloWorldService.java文件了，接下来是接口：

import org.apache.thrift.TException;
public class HelloWorldImpl implements HelloWorldService.Iface {    
public HelloWorldImpl() {   
         }    
        @Override    
        public String sayHello(String username) throws TException {        
        return "Hi," + username + " welcome to jianshu";    
        }
}

- 然后是服务端：

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 org.apache.thrift.transport.TTransportException;
import java.io.IOException;
import java.net.ServerSocket;
public class HelloServerDemo {
    public static void main(String[] args) throws IOException, TTransportException {
        final int SERVER_PORT = 8090;
        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();
    }
}

- 最后是客户端：

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 HelloClientDemo {
    public static final String SERVER_IP = "localhost";
    public static final int SERVER_PORT = 8090;
    public static final int TIMEOUT = 30000;
    public void startClient(String userName) {
        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("Thrify client result =: " + result);
        } catch (TTransportException e) {
            e.printStackTrace();
        } catch (TException e) {
            e.printStackTrace();
        } finally {
            if (null != transport) {
                transport.close();
            }
        }
    }
    public static void main(String[] args) {
        HelloClientDemo client = new HelloClientDemo();
        client.startClient("Vilarsail");
    }
}

- 程序写完了，先运行server，再运行client就可以看到输出了

Thrify client result =: Hi,Vilarsail welcome to my jianshu

最后为了支持原创，添加笔者的参考博文：
http://www.micmiu.com/soa/rpc/thrift-sample/
http://www.jianshu.com/p/0f4113d6ec4b
这两篇文章可能都会有编译不过或缺少依赖等等细小问题，读者可作为参考，如需转载请注明文章出处。