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# 【任务3】多语言互通

• 【任务3】多语言互通
  • 说明
  • server端
  • client端(python)
    • 执行结果
  • client端(C++)
    • 运行结果
  • 编译技巧(make操作)

说明

client：python
server：c++

server端

命令：thrift --gen cpp RecSys.thrift
自动生成gen-cpp目录，这个目录下的代码仅完成server功能

进入gen-cpp目录之后编译server端，命令：g++ -g -Wall -I./ -I/usr/local/include/thrift RecSys.cpp RecSys_constants.cpp RecSys_types.cpp RecSys_server.skeleton.cpp -L/usr/local/lib/*.so -lthrift -o server

gen-cpp/RecSys_server.skeleton.cpp文件中修改的内容：

void rec_data(std::string& _return, const std::string& data) {
    // Your implementation goes here
    printf("=======================\n");
    std::cout << "receive client data:" << data << std::endl;

    std::string ack = "yeah,I love you too!!";
    _return = ack;
  }

client端(python)

• 创建py文件：client.py

• 代码：

#! /usr/bin/env python
# -*- coding: utf-8 -*-

import sys
sys.path.append("gen-py")

from thrift import Thrift
from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol

from RecSys import RecSys
# from demo.ttypes import *

try:
    # Make Socket
    # 建立socket, IP 和port要写对
    transport = TSocket.TSocket('localhost', 9090)

    # Buffering is critical. Raw sockets are very slow
    # 选择传输层，这块要和服务器的设置一样
    transport = TTransport.TBufferedTransport(transport)

    # Wrap in a protocol
    # 选择传输协议，这个也要和服务器保持一致，负责无法通信
    protocol = TBinaryProtocol.TBinaryProtocol(transport)

    client = RecSys.Client(protocol)

    # Connect!
    transport.open()

    # Call server services
    rst = client.rec_data("I love you!")
    print rst

    # close transport
    transport.close()
except Thrift.TException, ex:
    print "%s" % (ex.message)

执行结果

1. 首先启动server端：./server

2. 然后执行client端：python client.py

3. 结果：两端能够接受到互相发送的信息

client端(C++)

• 创建c++文件：client.cpp

• 第一版代码：

#include "RecSys.h"
#include <iostream>
#include <string>

#include <transport/TSocket.h>
#include <transport/TBufferTransports.h>
#include <protocol/TBinaryProtocol.h>

#include <fcgi_stdio.h>
#include <fcgiapp.h>

using namespace apache::thrift;
using namespace apache::thrift::protocol;
using namespace apache::thrift::transport;

using namespace std;
using std::string;
using boost::shared_ptr;

int main(int argc, char **argv){

    boost::shared_ptr<TSocket> socket(new TSocket("localhost",9090));
    boost::shared_ptr<TTransport> transport(new TBufferedTransport(socket));
    boost::shared_ptr<TProtocol> protocol(new TBinaryProtocol(transport));

    transport->open();

    RecSysClient client(protocol);
    
    string send_data = "I love you!!!";

    string receive_data;

    client.rec_data(receive_data,send_data);

    cout << "receive server data: " << receive_data << endl;
    
    transport->close();
    return 0;
}

• 编译c++版的client：
  命令：编译client： g++ -g -Wall -I./ -I/usr/local/include/thrift RecSys.cpp client.cpp -L/usr/local/lib/*.so -lthrift -o client

• 完成之后会自动生成client可执行文件文件

运行结果

1. 首先启动server端：./server

2. 然后启动编译后的client端：./client

3. 结果：两端能够接受到互相发送的信息

编译技巧(make操作)

1. 创建名为：Makefile的文件

2. 在Makefile文件中写入以下内容：

server:
	g++ -g -Wall -I./ -I/usr/local/include/thrift RecSys.cpp RecSys_constants.cpp RecSys_types.cpp RecSys_server.skeleton.cpp -L/usr/local/lib/*.so -lthrift -o server

client:
	g++ -g -Wall -I./ -I/usr/local/include/thrift RecSys.cpp client.cpp -L/usr/local/lib/*.so -lthrift -o client

3. 写入完成后就可以执行make命令来进行编译文件了，默认make编译server端，因为server在Makefile中写在前面，也可以选择编译，命令：make server或者make client

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