MySQL使用connector C/C+读取二进制字段
MySQL使用connector C/C+读取二进制字段
MySQL使用connector C/C+读取二进制字段,两种方法:
用getString
- vector<char> vec;
- while (pResultSet->next())
- {
- string str = pResultSet->getString("data");
- vec.insert(vec.end(), str.begin(), str.end());
- }
用getBlob
- vector<char> vecALL;
- while (pResultSet->next())
- {
- istream *pis= pResultSet->getBlob("data");
- pis->seekg(0, ios::end);
- int sz = pis->tellg();
- pis->seekg(ios::beg);
- vector<char> vecTemp;
- vecTemp.resize(sz);
- pis->read(&vecTemp[0], sz);
- vecALL.insert(vec.end(), vecTemp.begin(),vecTemp.end());
- }
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