转自:http://blog.****.net/andy_yf/article/details/7487384
thrift做为跨语言调用的方案有高效，支持语言较多，成熟等优点；代码侵入较强是其弱点。
下面记录以C++做服务器，C++,java和python做客户端的示例，这个和本人现在工作环境吻合，使用多线程长连接的socket来建立高效分布式系统的跨语言调用平台。遗憾的是目前版本(0.7.0)的C语言还不支持Compact协议，导致在现在的环境中nginx c module调用thrift要使用binary协议。thrift开发团队似乎对C语言不太感冒。
1.定义idl文件acsuser.thrift
struct User{
: string uid,
: string uname,
: bool usex,
: i16 uage,
}
service UserService{
void add(: User u),
User get(: string uid),
}
2.生成c++,java和python代码框架
thrift -r --gen cpp acsuser.thrift
thrift -r --gen java acsuser.thrift
thrift -r --gen py acsuser.thrift
这时生成子目录gen-cpp,gen-java,gen-py
3.生成C++服务端代码
cp gen-cpp/UserService_server.skeleton.cpp UserServer.cpp
修改UserServer.cpp
#include "UserService.h"
#include <config.h>
//#include <protocol/TBinaryProtocol.h>
#include <protocol/TCompactProtocol.h>
#include <server/TSimpleServer.h>
#include <transport/TServerSocket.h>
#include <transport/TBufferTransports.h>
#include <concurrency/ThreadManager.h>
#include <concurrency/PosixThreadFactory.h>
#include <server/TThreadPoolServer.h>
#include <server/TThreadedServer.h> using namespace ::apache::thrift;
using namespace ::apache::thrift::protocol;
using namespace ::apache::thrift::transport;
using namespace ::apache::thrift::server;
using namespace ::apache::thrift::concurrency; using boost::shared_ptr; class UserServiceHandler : virtual public UserServiceIf {
public:
UserServiceHandler() {
// Your initialization goes here
} void add(const User& u) {
// Your implementation goes here
printf("uid=%s uname=%s usex=%d uage=%d\n", u.uid.c_str(), u.uname.c_str(), u.usex, u.uage);
} void get(User& _return, const std::string& uid) {
// Your implementation goes here
_return.uid = "leo1";
_return.uname = "yueyue";
_return.usex = ;
_return.uage = ;
printf("uid=%s uname=%s usex=%d uage=%d\n", _return.uid.c_str(), _return.uname.c_str(), _return.usex, _return.uage);
} }; int main(int argc, char **argv) {
shared_ptr<UserServiceHandler> handler(new UserServiceHandler());
shared_ptr<TProcessor> processor(new UserServiceProcessor(handler));
shared_ptr<TProtocolFactory> protocolFactory(new TCompactProtocolFactory());
shared_ptr<TTransportFactory> transportFactory(new TBufferedTransportFactory());
shared_ptr<TServerTransport> serverTransport(new TServerSocket()); shared_ptr<ThreadManager> threadManager = ThreadManager::newSimpleThreadManager();
shared_ptr<PosixThreadFactory> threadFactory = shared_ptr<PosixThreadFactory>(new PosixThreadFactory());
threadManager->threadFactory(threadFactory);
threadManager->start();
printf("start user server...\n"); TThreadPoolServer server(processor, serverTransport, transportFactory, protocolFactory, threadManager);
server.serve();
return ;
}
注意这段代码使用TCompactProtocol，需要#include <config.h>
另外这个是Blocking的多线程服务器
4.生成C++的client文件UserClient.cpp
#include "UserService.h"
#include <config.h>
#include <transport/TSocket.h>
#include <transport/TBufferTransports.h>
#include <protocol/TCompactProtocol.h> using namespace apache::thrift;
using namespace apache::thrift::protocol;
using namespace apache::thrift::transport; using boost::shared_ptr; int main(int argc, char **argv) {
boost::shared_ptr<TSocket> socket(new TSocket("localhost", ));
boost::shared_ptr<TTransport> transport(new TBufferedTransport(socket));
boost::shared_ptr<TProtocol> protocol(new TCompactProtocol(transport)); transport->open(); User u;
u.uid = "leo";
u.uname = "yueyue";
u.usex = ;
u.uage = ; UserServiceClient client(protocol);
client.add(u); User u1;
client.get(u1,"lll"); transport->close();
printf("uid=%s uname=%s usex=%d uage=%d\n", u1.uid.c_str(), u1.uname.c_str(), u1.usex, u1.uage);
return ;
}
5.生成Makefile
BOOST_DIR = /usr/local/include/boost/
THRIFT_DIR = /usr/local/include/thrift
LIB_DIR = /usr/local/lib
GEN_SRC = ./gen-cpp/acsuser_types.cpp ./gen-cpp/acsuser_constants.cpp ./gen-cpp/UserService.cpp
default: server client
server: UserServer.cpp
g++ -g -o UserServer -I${THRIFT_DIR} -I${BOOST_DIR} -I./gen-cpp -L${LIB_DIR} -lthrift UserServer.cpp ${GEN_SRC}
client: UserClient.cpp
g++ -g -o UserClient -lm -pthread -lz -lrt -lssl -I${THRIFT_DIR} -I${BOOST_DIR} -I./gen-cpp -L${LIB_DIR} -lthrift UserClient.cpp ${GEN_SRC}
clean:
$(RM) -r UserServer UserClient
6.启动c++ server
./UserServer
7.测试c++ client
./UserClient
8.写java client文件UserClient.java
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TCompactProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TFramedTransport;
import org.apache.thrift.transport.TNonblockingSocket;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;
import org.apache.thrift.transport.TTransportException; //import UserService.Client; public class UserClient {
private void start() {
try {
TTransport socket = new TSocket("localhost", );
//TTransport transport = new TFramedTransport(socket);
TProtocol protocol = new TCompactProtocol(socket); UserService.Client client = new UserService.Client(protocol);
socket.open();
System.out.println(client.get("lll")); User u = new User();
u.uid="leojava";
u.uname="yueyue";
u.usex=true;
u.uage=;
client.add(u);
socket.close(); } catch (TTransportException e) {
e.printStackTrace();
} catch (TException e) {
e.printStackTrace();
}
} public static void main(String[] args) {
UserClient c = new UserClient();
c.start(); }
}
编译和运行java client
javac -classpath /usr/local/lib/libthrift-0.7..jar:/usr/local/lib/log4j-1.2..jar:/usr/local/lib/commons-logging-1.1..jar:/usr/local/lib/slf4j-api-1.5..jar UserClient.java ./gen-java/*.java
java -classpath .:./gen-java:/usr/local/lib/libthrift-0.7.0.jar:/usr/local/lib/log4j-1.2.14.jar:/usr/local/lib/commons-logging-1.1.1.jar:/usr/local/lib/slf4j-api-1.5.8.jar:/usr/local/lib/slf4j-log4j12-1.5.8.jar UserClient
9.写Python client文件PythonClient.py
#!/usr/bin/env python
import sys
sys.path.append('./gen-py')
from acsuser import UserService
from acsuser.ttypes import *
from thrift import Thrift
from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TCompactProtocol # Make socket
transport = TSocket.TSocket('localhost', )
# Buffering is critical. Raw sockets are very slow
transport = TTransport.TBufferedTransport(transport)
# Wrap in a protocol
protocol = TCompactProtocol.TCompactProtocol(transport)
# Create a client to use the protocol encoder
client = UserService.Client(protocol)
# Connect!
transport.open()
# Call Server services
u = client.get('lll')
print 'uid=%s uname=%s usex=%d u.uage=%d' %(u.uid,u.uname,u.usex,u.uage) u1 = User()
u1.uid='leo'
u1.uname='yueyue'
u1.usex=
u1.uage=
client.add(u1)
执行python client代码
chmod PythonClient.py
./PythonClient.py