MYSQL C API : mysql_real_escape_string 二进制数据存储

 #include <iostream>
 #include <string>

 #include <string.h>

 #include <mysql.h>

 int main()
 {
     // 初始化MYSQL 实例
     MYSQL *ms_conn = mysql_init(NULL);
     if (ms_conn == NULL)
     {
         std::cout << "mysql init failed." << std::endl;
         return ;
     }
     std::cout << "mysql init successful." << std::endl;

     // 连接到MYSQL 服务器
     MYSQL *ms_ret = mysql_real_connect(ms_conn, "localhost", "root",
             "123456sx", "temp", , NULL, );
     if (ms_ret == NULL)
     {
         std::cout << "mysql connect failed." << std::endl;
         std::cout << mysql_error(ms_conn) << std::endl;
         mysql_close(ms_conn), ms_conn = NULL;
         return ;
     }
     std::cout << "mysql connect successful." << std::endl;

     // 待存到MYSQL 的二进制数据
     char bin_data[] = {, , , , , , , , , };

     // 转义二进制数为一条字符串数据，
     // 同时mysql_real_escape_string() 生成的字符串会自动添加尾零
     char *escape_bin = new char[sizeof(bin_data) *  + ];
     mysql_real_escape_string(ms_conn,
             escape_bin, bin_data, sizeof(bin_data));

     // 生成SQL 语句
     std::string str_sql = "";
     str_sql += "INSERT INTO tb_bin_data(bin_data) VALUES('";
     str_sql += escape_bin;
     str_sql += "')";

     delete [] escape_bin, escape_bin = NULL;

     int res = ;
     res = mysql_real_query(ms_conn, str_sql.c_str(),
             str_sql.size());
     if (res != )
     {
         std::cout << "Error: query failed. "
             << mysql_error(ms_conn) << std::endl;
     }
     else
     {
         std::cout << "Info: query successful." << std::endl;
     }

     // 释放资源
     mysql_close(ms_conn), ms_conn = NULL;
     return ;
 }