Apache Thrift 在 Ubuntu 的简单使用

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一. Thrift简介

Apache Thrift是跨语言服务访问的框架。最早由Facebook 开发，贡献给了Apache。

图中前三部分分别是通过Thrift 脚本文件生成的代码,根据生成代码创建的服务器客户端代码和两端的结果.
协议:
TBinaryProtocol: 二进制编码格式
TCompactProtocol: 使用Variable-Length Quantity (VLQ) 编码对数据进行压缩
TJSONProtocol: 使用JSON的数据编码协议进行数据传输
TSimpleJSONProtocol – 这种节约只提供JSON只写的协议，适用于通过脚本语言解析
TDebugProtocol – 在开发的过程中帮助开发人员调试用的，以文本的形式展现方便阅读

传输层
TSocket- 使用堵塞式I/O进行传输，也是最常见的模式。
TFramedTransport- 使用非阻塞方式，按块的大进行传输，类似于Java中的NIO。
TFileTransport- 按照文件的方式进程传输，虽然这种方式不提供Java的实现，但是实现起来非常简单。
TMemoryTransport- 使用内存I/O，就好比Java中的ByteArrayOutputStream实现。
TZlibTransport- 使用执行zlib压缩，不提供Java的实现。

服务端类型
TSimpleServer - 单线程服务器端使用标准的堵塞式I/O。
TThreadPoolServer - 多线程服务器端使用标准的堵塞式I/O。
TNonblockingServer – 多线程服务器端使用非堵塞式I/O，并且实现了Java中的NIO通道。

二. Thrift 安装配置
1)sudo apt-get install libboost-dev libboost-test-dev libboost-program-options-dev libboost-system-dev libboost-filesystem-dev libevent-dev automake libtool flex bison pkg-config g++ libssl-dev

2)下载
www.apache.org/dyn/closer.cgi?path=/thrift/0.9.2/thrift-0.9.2.tar.gz

3)解压后进入根目录
./configure
sudo make
sudo make install

hello.thrift

namespace java com.testservice  HelloWorldService {  string sayHello(1:string username)}

bye.thrift

namespace java com.test2service  GoodByeService {  string sayBye(1:string username)}

thrift -r –gen java hello.thrift
thrift -r –gen java bye.thrift

GoodByeImpl.java

package com.abc;import com.test2.*;import org.apache.thrift.TException;public class GoodByeImpl implements GoodByeService.Iface {    public  GoodByeImpl() {    }    @Override    public String sayBye(String username) throws TException {        otherServer client = new otherServer();        String result = client.getClientInfo("Lyn");        return result + "\n Bye-bye, " + username ;    }}

HelloWorldImpl.java

package com.abc;import com.test.*;import org.apache.thrift.TException;public class HelloWorldImpl implements HelloWorldService.Iface {    public HelloWorldImpl() {    }    @Override    public String sayHello(String username) throws TException {        return "hello, " + username +":"+ HelloServer.SERVER_PORT ;    }}

HelloServer.java

package com.abc;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;import com.test.HelloWorldService;public class HelloServer {    public static final int SERVER_PORT = 9090;    public void startServer() {        try {            System.out.println("HelloWorld TSimpleServer start ....");            TProcessor tprocessor = new HelloWorldService.Processor<HelloWorldService.Iface>(new HelloWorldImpl());            TServerSocket serverTransport = new TServerSocket(SERVER_PORT);            TServer.Args tArgs = new TServer.Args(serverTransport);            tArgs.processor(tprocessor);            tArgs.protocolFactory(new TBinaryProtocol.Factory());            TServer server = new TSimpleServer(tArgs);            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();    }}

otherServer.java

package com.abc;import javax.print.attribute.standard.MediaSize.Other;import org.apache.thrift.TException;import org.apache.thrift.TProcessor;import org.apache.thrift.protocol.TBinaryProtocol;import org.apache.thrift.protocol.TProtocol;import org.apache.thrift.server.TServer;import org.apache.thrift.server.TSimpleServer;import org.apache.thrift.transport.TServerSocket;import org.apache.thrift.transport.TSocket;import org.apache.thrift.transport.TTransport;import org.apache.thrift.transport.TTransportException;import com.test.HelloWorldService;import com.test2.GoodByeService;public class otherServer {    public static final int PORT2 = 8090;    public static final int SERVER_PORT = 9090;    public static final int TIMEOUT = 30000;    public void startServer() {        try {            System.out.println("Another TSimpleServer start ....");            TProcessor tprocessor = new GoodByeService.Processor<GoodByeService.Iface>(                    new GoodByeImpl());            TServerSocket serverTransport = new TServerSocket(PORT2);            TServer.Args tArgs = new TServer.Args(serverTransport);            tArgs.processor(tprocessor);            tArgs.protocolFactory(new TBinaryProtocol.Factory());            TServer server = new TSimpleServer(tArgs);            server.serve();        } catch (Exception e) {            System.out.println("Another Server start error!!!");            e.printStackTrace();        }    }    public String getClientInfo(String userName) {        TTransport transport = null;        String result = "";        try {            transport = new TSocket("localhost", 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();            result = client.sayHello(userName);            System.out.println("Another thrift client result =: " + result);        } catch (TTransportException e) {            e.printStackTrace();        } catch (TException e) {            e.printStackTrace();        } finally {            if (null != transport) {                transport.close();            }        }        return result;    }    public static void main(String[] args) {        // HelloClient client = new HelloClient();        otherServer server = new otherServer();        // client.startClient("Hello client in other server");        // client2.startClient("other server");        server.startServer();    }}

HelloClient.java

package com.abc;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;import com.test2.*;public class HelloClient {    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);            // 协议要和服务端一致            TProtocol protocol = new TBinaryProtocol(transport);            // TProtocol protocol = new TCompactProtocol(transport);            // TProtocol protocol = new TJSONProtocol(transport);            GoodByeService.Client client = new GoodByeService.Client(protocol);            transport.open();//            String result = client.sayHello(userName);//            System.out.println("Thrift client result =: " + result);            String result = client.sayBye(userName);            System.out.println("Thrift 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) {        HelloClient client = new HelloClient();        client.startClient("Jack");    }}

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