记录 关于Unicode 转 UTF-8 字符编码

最近项目被字符编码困扰好久，原因是服务端是java默认的utf-8 字符编码，客户端是mfc的unicode 字符编码，两者不统一，发送中文时乱码。当我在网上找了好久，发现了下面的文章，一下解决了。做个记录，免得日后忘记没地看。

char* EncodeToUTF8(const char* mbcsStr) {  wchar_t*  wideStr;  char*   utf8Str;  int   charLen; charLen = MultiByteToWideChar(CP_UTF8, 0, mbcsStr, -1, NULL, 0);  wideStr = (wchar_t*) malloc(sizeof(wchar_t)*charLen);  MultiByteToWideChar(CP_ACP, 0, mbcsStr, -1, wideStr, charLen); charLen = WideCharToMultiByte(CP_UTF8, 0, wideStr, -1, NULL, 0, NULL, NULL); utf8Str = (char*) malloc(charLen); WideCharToMultiByte(CP_UTF8, 0, wideStr, -1, utf8Str, charLen, NULL, NULL); free(wideStr);  return utf8Str;} 

char* UTF8ToEncode(const char* mbcsStr){ wchar_t*  wideStr;  char*   unicodeStr;  int   charLen; charLen = MultiByteToWideChar(CP_UTF8, 0, mbcsStr, -1, NULL, 0);    wideStr = (wchar_t*) malloc(sizeof(wchar_t)*charLen);  MultiByteToWideChar(CP_UTF8, 0, mbcsStr, -1, wideStr, charLen);  charLen =WideCharToMultiByte(CP_ACP, 0, wideStr, -1, NULL, 0, NULL, NULL);   unicodeStr = (char*)malloc(charLen);    WideCharToMultiByte(CP_ACP, 0, wideStr, -1, unicodeStr, charLen, NULL, NULL);  free(wideStr);  return unicodeStr;}

如果工程是Unicode字符集的话，上面的函数要做修改