gSoap中文支持

      gsoap中文介绍见：

http://blog.youkuaiyun.com/darkone/archive/2006/12/14/1442525.aspx

http://dev.youkuaiyun.com/article/83869.shtm

      最近用gSoap作了个项目，测试时发现对英字符串处理正常，但不能正常处理中文字符串，感到纳闷。如果gSoap有问题，早就有人提出来并且改正了，所以应该是我的程序的问题。在网上搜了下，也没找到合理的解释，所以就自己读了它的代码，终于找到了解决方法，现在写出来，给那些有此疑问的朋友一点帮助，也方便自己将来查询。

      中文乱码与locale有关，这里给出两种解决方法：

一、设置locale

      1、setlocale(LC_ALL, "");//设置程序locale为系统默认（我的系统是zh_CN.utf8），gsoap内部进行编码转换依赖于locale,所以必须设置为中文环境。

      2、gSoap初始化 gSoap生成的代理类名字为：CSmsProxy

           CSmsProxy soapRequest(SOAP_C_MBSTRING);

      下面同一般编程。gSoap会自动把字符串转换为正确的编码。

 

二、不设置locale，使用默认的"C" locale，程序中传给gSoap、从gSoap接收的字符串都使用utf8编码

      代理类初始化： CSmsProxy soapRequest(SOAP_C_UTFSTRING);

      下面同一般编程。gSoap会把字符串当成utf8编码处理。

 

下面附带gb2312与utf8编码之间的转换函数：

//gb2312转utf8
void Gb2312ToUtf8(char* pstrOut, u32 dwOutLen, const char* pstrIn, u32 dwInLen)
{
#ifdef WIN32
    int i = MultiByteToWideChar(CP_ACP, 0, pstrIn, -1, NULL, 0);
    wchar_t * strSrc = new wchar_t[i+1];
    MultiByteToWideChar(CP_ACP, 0, pstrIn, -1, strSrc, i);
   
    i = WideCharToMultiByte(CP_UTF8, 0, strSrc, -1, NULL, 0, NULL, NULL);
    if (i >= dwOutLen)
    {
        i = dwOutLen - 1;
    }
    WideCharToMultiByte(CP_UTF8, 0, strSrc, -1, pstrOut, i, NULL, NULL);
    delete strSrc;
#else
    iconv_t iConv = iconv_open("utf-8", "gb2312");
    iconv(iConv, (char **)&pstrIn, (size_t *)&dwInLen, (char **)&pstrOut, (size_t *)&dwOutLen);
    iconv_close(iConv);
#endif
}

//utf8转gb2312
void Utf8ToGb2312(char* pstrOut, u32 dwOutLen, const char* pstrIn, u32 dwInLen)
{
    if (NULL == pstrOut)
    {
        return ;
    }
#ifdef WIN32
    int i = MultiByteToWideChar(CP_UTF8, 0, pstrIn, -1, NULL, 0);
    wchar_t * strSrc = new wchar_t[i+1];
    MultiByteToWideChar(CP_UTF8, 0, pstrIn, -1, strSrc, i);
   
    i = WideCharToMultiByte(CP_ACP, 0, strSrc, -1, NULL, 0, NULL, NULL);
    if (i >= dwOutLen)
    {
        i = dwOutLen - 1;
    }
    WideCharToMultiByte(CP_ACP, 0, strSrc, -1, pstrOut, i, NULL, NULL);
    delete strSrc;
#else
    iconv_t iConv = iconv_open("gb2312", "utf-8");
    iconv(iConv, (char **)&pstrIn, (size_t *)&dwInLen, (char **)&pstrOut, (size_t *)&dwOutLen);
    iconv_close(iConv);
#endif
}

//gb2312转Unicode
void Gb2312ToUnicode(wchar_t* pstrOut, u32 dwOutLen, const char* pstrIn, u32 dwInLen)
{
    if (NULL == pstrOut)
    {
        return ;
    }
#ifdef WIN32
    u32 i = MultiByteToWideChar(CP_ACP, 0, pstrIn, -1, NULL, 0);
    if (i >= dwOutLen)
    {
        i = dwOutLen - 1;
    }
    MultiByteToWideChar(CP_ACP, 0, pstrIn, -1, pstrOut, i);
#else
    iconv_t iConv = iconv_open("unicode", "gb2312");
    iconv(iConv, (char**)pstrIn, &dwInLen, (char**)pstrOut, &dwOutLen);
    iconv_close(iConv);
#endif
}

//Unicode转Gb2312
void UnicodeToGb2312(char* pstrOut, u32 dwOutLen, const wchar_t* pstrIn, u32 dwInLen)
{
    if (NULL == pstrOut)
    {
        return ;
    }
#ifdef WIN32
    u32 i = WideCharToMultiByte(CP_ACP, 0, pstrIn, -1, NULL, 0, NULL, NULL);
    if (i >= dwOutLen)
    {
        i = dwOutLen - 1;
    }
    WideCharToMultiByte(CP_ACP, 0, pstrIn, -1, pstrOut, i, 0, 0);
#else
    iconv_t iConv = iconv_open("gb2312", "unicode");
    iconv(iConv, (char**)pstrIn, &dwInLen, (char**)pstrOut, &dwOutLen);
    iconv_close(iConv);
#endif
}

//utf8转Unicode
void Utf8ToUnicode(wchar_t* pstrOut, u32 dwOutLen, const char* pstrIn, u32 dwInLen)
{
    if (NULL == pstrOut)
    {
        return ;
    }
#ifdef WIN32
    u32 i = MultiByteToWideChar(CP_UTF8, 0, pstrIn, -1, NULL, 0);
    if (i >= dwOutLen)
    {
        i = dwOutLen - 1;
    }
    MultiByteToWideChar(CP_UTF8, 0, pstrIn, -1, pstrOut, i);
#else
    iconv_t iConv = iconv_open("unicode", "utf-8");
    iconv(iConv, (char**)pstrIn, &dwInLen, (char**)pstrOut, &dwOutLen);
    iconv_close(iConv);
#endif
}