安装Thrift并写一个简单的测试程序
参考链接：
http://thrift.apache.org/docs/install/centos Apache thrift官方安装步骤
http://blog.163.com/zhangjie_0303/blog/static/9908270620140311022650/ 网友的示例，可以搞清楚Thrift到底能干什么
目录：
1.安装步骤
2.示例：C++Server 及 C++Client
3.运行示例时的错误解决，error：./CppServer: error while loading shared libraries: libthrift-1.0.0-dev.so: cannot open
1.安装步骤
参考：http://thrift.apache.org/docs/install/centos Apache thrift官方安装步骤，一步步安装即可。
2.示例：C++Server 及 C++Client
运行示例效果截图：
编辑demo.thrift文件，内容如下：
struct UserProfile{
1:i32 id, //注意这里是逗号，而不是分号
2:string name,
3:string blurb
} //这里没有分号
service UserStorage{
void store(1: UserProfile user), //注意这里是逗号，而不是分号
UserProfile getUser(1: i32 uid)
}
运行如下命令
cloud1:~/test/thrift/demo # thrift -r --gen cpp demo.thrift
cloud1:~/test/thrift/demo # ls
demo.thrift gen-cpp
可以看到在当前目录下产生了一个gen-cpp的目录，该目录下即以上命令产生的文件：
UserStorage.cpp
UserStorage.h
UserStorage_server.skeleton.cpp
demo_constants.cpp
demo_constants.h
demo_types.cpp
demo_types.h
UserStorage.h
UserStorage_server.skeleton.cpp
demo_constants.cpp
demo_constants.h
demo_types.cpp
demo_types.h
注意：在以上文件中，只有UserStorage_server.skeleton.cpp是跟业务相关的，是可以修改的，其余文件都是框架相关的。
UserStorage_server_skeleton.cpp文件内容如下：
// This autogenerated skeleton file illustrates how to build a server.
// You should copy it to another filename to avoid overwriting it.
// You should copy it to another filename to avoid overwriting it.
#include "UserStorage.h"
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
using namespace std;
using namespace ::apache::thrift;
using namespace ::apache::thrift::protocol;
using namespace ::apache::thrift::transport;
using namespace ::apache::thrift::server;
using namespace ::apache::thrift;
using namespace ::apache::thrift::protocol;
using namespace ::apache::thrift::transport;
using namespace ::apache::thrift::server;
using boost::shared_ptr;
class UserStorageHandler : virtual public UserStorageIf {
public:
UserStorageHandler() {
// Your initialization goes here
}
public:
UserStorageHandler() {
// Your initialization goes here
}
void store(const UserProfile& user) {
// Your implementation goes here
printf("store\n");
}
// Your implementation goes here
printf("store\n");
}
void getUser(UserProfile& _return, const int32_t uid) {
// Your implementation goes here
printf("getUser\n");
}
};
// Your implementation goes here
printf("getUser\n");
}
};
int main(int argc, char **argv) {
int port = 9090;
shared_ptr handler(new UserStorageHandler());
shared_ptr processor(new UserStorageProcessor(handler));
shared_ptr serverTransport(new TServerSocket(port));
shared_ptr transportFactory(new TBufferedTransportFactory());
shared_ptr protocolFactory(new TBinaryProtocolFactory());
int port = 9090;
shared_ptr
shared_ptr
shared_ptr
shared_ptr
shared_ptr
TSimpleServer server(processor, serverTransport, transportFactory, protocolFactory);
server.serve();
return 0;
}
server.serve();
return 0;
}
可以看到，该文件只是一个框架，用户可以根据需要扩展该文件，笔者修改如下（蓝色部分为添加的代码，同时将文件改名为UserStorage_server.cpp）：
// This autogenerated skeleton file illustrates how to build a server.
// You should copy it to another filename to avoid overwriting it.
#include "UserStorage.h"
#include
#include
#include
#include
#include
using namespace std;
using namespace ::apache::thrift;
using namespace ::apache::thrift::protocol;
using namespace ::apache::thrift::transport;
using namespace ::apache::thrift::server;
using boost::shared_ptr;
class UserStorageHandler : virtual public UserStorageIf {
public:
UserStorageHandler() {
// Your initialization goes here
}
void store(const UserProfile& user) {
// Your implementation goes here
log[user.id] = user; //实际的保存操作
printf("store\n");
}
void getUser(UserProfile& _return, const int32_t uid) {
// Your implementation goes here
_return = log[uid]; //实际获取操作，注意：在实际生产中，这里还需要异常处理
printf("getUser\n");
}
//增加成员变量，用户保存用户数据，为了简单起见，这里只将数据保存在内存，当然可以可以保存在数据库、文件等等，主要注意，如果保存在其他介质的话
//在初始化的时候记得加载进内存或者打开访问句柄
protected:
map log;
};
int main(int argc, char **argv) {
int port = 9090;
shared_ptr handler(new UserStorageHandler());
shared_ptr processor(new UserStorageProcessor(handler));
shared_ptr serverTransport(new TServerSocket(port));
shared_ptr transportFactory(new TBufferedTransportFactory());
shared_ptr protocolFactory(new TBinaryProtocolFactory());
TSimpleServer server(processor, serverTransport, transportFactory, protocolFactory);
server.serve();
return 0;
}
可以看到以上程序还包括一个简单的服务端代码，问了进行测试，笔者从thrift/tutorial/cpp/目录下copy了一个客户端代码和Makefile
修改如下：
CppClient.cpp （蓝色部分为客户化代码）
#include
#include
#include
#include
#include
#include
#include "UserStorage.h"
using namespace std;
using namespace apache::thrift;
using namespace apache::thrift::protocol;
using namespace apache::thrift::transport;
using namespace boost;
int main(int argc, char** argv) {
shared_ptr socket(new TSocket("localhost", 9090));
shared_ptr transport(new TBufferedTransport(socket));
shared_ptr protocol(new TBinaryProtocol(transport));
UserStorageClient client(protocol);
try {
transport->open();
UserProfile user;
user.id = 1;
user.name = "liqb";
user.blurb = "aaaaaa";
client.store(user);
UserProfile user2;
client.getUser(user2, 1);
printf("user.id = %d user.name = %s user.blurb = %s\n", user2.id, user2.name.c_str(), user2.blurb.c_str());
transport->close();
} catch (TException &tx) {
printf("ERROR: %s\n", tx.what());
}
}
Makefile
BOOST_DIR = /usr/local/boost/include/boost-1_33_1/
THRIFT_DIR = /usr/local/include/thrift
LIB_DIR = /usr/local/lib
GEN_SRC = UserStorage.cpp demo_constants.cpp demo_types.cpp
default: server client
server: UserStorage_server.cpp
g++ -o CppServer -I${THRIFT_DIR} -I${BOOST_DIR} -I../gen-cpp -L${LIB_DIR} -lthrift UserStorage_server.cpp ${GEN_SRC}
client: CppClient.cpp
g++ -o CppClient -I${THRIFT_DIR} -I${BOOST_DIR} -I../gen-cpp -L${LIB_DIR} -lthrift CppClient.cpp ${GEN_SRC}
clean:
$(RM) -r CppClient CppServer
编译之后产生CppServer 和CppClient 两个可执行程序，分别运行CppServer 和CppClient，即可以看到测试结果。
先运行服务器:
cloud1:~/test/thrift/demo/gen-cpp # ./CppServer
再执行客户端:
cloud1:~/test/thrift/demo/gen-cpp # ./CppClient
user.id = 1 user.name = liqb user.blurb = aaaaaa
cloud1:~/test/thrift/demo/gen-cpp #
服务器上显示:
cloud1:~/test/thrift/demo/gen-cpp # ./CppServer
store
getUser
3.运行./CppServer和./CppClient时错误解决，error：./CppServer: error while loading shared libraries: libthrift-1.0.0-dev.so: cannot open shared object file: No such file or directory
解决步骤：
1、使用find命令查找缺失的libthrift-1.0.0-dev.so共享库文件所在位置:find /usr/local/ -name "libthrift-1.0.0*"
2、将找到的目录位置写入 /etc/ld.so.conf 配置文件，这个文件记录了编译时使用的动态链接库的路径,使用命令：sudo vim /etc/ld.so.conf ，在末尾增加报错文件的路径
3、然后使用ldconfig命令，使配置生效。
4.再运行测试程序正常
