C++ mysqlconnecotor连接数据库出现bad_alloc异常怎么解决？

#include<iostream>
#include<mysql/jdbc.h>

#pragma comment(lib,"mysqlcppconn.lib")

using namespace std;
using namespace sql;

int main()
{
    mysql::MySQL_Driver* driver = mysql::get_mysql_driver_instance();
    Connection* conn = driver->connect("tcp:127.0.0.1:3306", "root", "root");

    return 0;
}