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libprotobuf ERROR google/protobuf/wire_format.cc:1059

2013-08-09

使用google::protobuf进行序列化,在运行时有如下警告!libprotobuf ERROR google/protobuf/wire_format.cc:1059] Encountered string containing invalid UTF-8 data while serializing protocol b...

使用google::protobuf进行序列化,在运行时有如下警告!

libprotobuf ERROR google/protobuf/wire_format.cc:1059] Encountered string containing invalid UTF-8 data while serializing protocol buffer. Strings must contain only UTF-8; use the 'bytes' type for raw bytes.

libprotobuf ERROR google/protobuf/wire_format.cc:1059] Encountered string containing invalid UTF-8 data while serializing protocol buffer. Strings must contain only UTF-8; use the 'bytes' type for raw bytes.

原因:要求所有的string类型都必须为UTF-8类型的,可以使用<iconv.h> 进行格式转化。

先面贴一段转化的代码:

include <string>
#include <stdlib.h>
#include <iostream>
using namespace std;
#include <iconv.h>
bool convertGbk2Utf(string& instr, string& outstr)
{
                iconv_t     gbk2UtfDescriptor;
                gbk2UtfDescriptor = iconv_open("UTF-8", "GBK");
                size_t inlen = instr.length();
                char* in = const_cast<char*>(instr.c_str());
                size_t outlen = inlen * 2 + 1; // inlen * 1.5 + 1 >= outlen >= inlen + 1
                char* outbuf = (char*)::malloc(outlen);
                char* out = outbuf;
                memset(outbuf, 0x0, outlen);
                if((size_t)-1 == iconv(gbk2UtfDescriptor, &in, &inlen, &out, &outlen))
                {
                                ::free(outbuf);
                                return false;
                }
                outstr.clear();
                outstr.append(outbuf);
                ::free(outbuf);
                return true;
}
int main()
{
                string str = "黄";
                convertGbk2Utf(str,str);
                cout << str << endl;
}

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