c++实现加载so动态库中的资源

#include <stdio.h> #include <dlfcn.h> #include <stdlib.h> #include <iostream> //编译命令 g++ -m32 EncodeOrDecode.cpp -ldl -o edcode//名字通过nm -D xxxxxx.so获取using namespace std;int main(int argc,char **argv){void *handle = dlopen("./libpub_com_service.so",RTLD_LAZY);if(!handle){printf("open libpub error ,dlerror=%s/n",dlerror());return -1;}string src = "05d7151349b7fe9b54306d90f9c938b3";string desKey = "pub.%?d5";//58printf("start ..src=[%s].....size=[%d]./n",src.c_str(),src.size());//encode typedef string (*encode_t)(const string encodeSrc,const string encodeKey);encode_t encode = (encode_t)dlsym(handle,"_ZN10NS_PUB_API9DesEncodeESsSs");if(!encode){printf("not found encode function ,dlerror= %s /n",dlerror());dlclose(handle);return -1;}string encodeStr = encode(src,desKey);printf("get the encode function success ..encodeStr=[%s].....size=[%d]/n",encodeStr.c_str(),encodeStr.size());//decode typedef bool (*decode_t)(const string decodeSrc,const string decodeKey,string &outResult);decode_t decode = (decode_t)dlsym(handle,"_ZN10NS_PUB_API9DesDecodeESsSsRSs");if(!decode){printf("not found decode function ,dlerror= %s /n",dlerror());dlclose(handle);return -1;}string decodeOut;bool ret = decode(encodeStr,desKey,decodeOut);printf("get the decode function success ...ret=[%d]...decodeOut=[%s].....size=[%d]/n",ret,decodeOut.c_str(),decodeOut.size());//enddlclose(handle);return 0;}