UTF8与std:string互转
Ajax请求发送的UTF8编码字符串传到后台使用std:string进一步处理,如果包含中文会出现中文乱码的问题:
特找了一下转码的解决方法,直接代码如下:
C++ Code
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// UTF8转std:string
// 转换过程:先将utf8转双字节Unicode编码,再通过WideCharToMultiByte将宽字符转换为多字节。 std::string UTF8_To_string(const std::string& str) { int nwLen = MultiByteToWideChar(CP_UTF8, 0, str.c_str(), -1, NULL, 0); wchar_t* pwBuf = new wchar_t[nwLen + 1]; //一定要加1,不然会出现尾巴 memset(pwBuf, 0, nwLen * 2 + 2); MultiByteToWideChar(CP_UTF8, 0, str.c_str(), str.length(), pwBuf, nwLen); int nLen = WideCharToMultiByte(CP_ACP, 0, pwBuf, -1, NULL, NULL, NULL, NULL); char* pBuf = new char[nLen + 1]; memset(pBuf, 0, nLen + 1); WideCharToMultiByte(CP_ACP, 0, pwBuf, nwLen, pBuf, nLen, NULL, NULL); std::string strRet = pBuf; delete []pBuf; delete []pwBuf; pBuf = NULL; pwBuf = NULL; return strRet; } // std:string转UTF8 std::string string_To_UTF8(const std::string& str) { int nwLen = ::MultiByteToWideChar(CP_ACP, 0, str.c_str(), -1, NULL, 0); wchar_t* pwBuf = new wchar_t[nwLen + 1]; //一定要加1,不然会出现尾巴 ZeroMemory(pwBuf, nwLen * 2 + 2); ::MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.length(), pwBuf, nwLen); int nLen = ::WideCharToMultiByte(CP_UTF8, 0, pwBuf, -1, NULL, NULL, NULL, NULL); char* pBuf = new char[nLen + 1]; ZeroMemory(pBuf, nLen + 1); ::WideCharToMultiByte(CP_UTF8, 0, pwBuf, nwLen, pBuf, nLen, NULL, NULL); std::string strRet(pBuf); delete []pwBuf; delete []pBuf; pwBuf = NULL; pBuf = NULL; return strRet; } |
问题解决bingo!
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