如何在 Ubuntu 上将 MySQL 数据库连接到 C++？

Question

I am trying to make a database management system in C++, however I have been struggling for many hours to even connect the MySQL to my program.

I am fairy new to C++, but I have experience in Java, and it was never such a pain connecting to MySQL.

I have tried over a dozen variations of the code below, yet I still have not succeeded.

How do I go about connecting a MySQL database to C++ for Linux?

My code at the moment looks like this:

#include <iostream>
#include <stdlib.h>
#include <string>

#include <mysql_connection.h>
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
#include <mysql_driver.h>

using namespace std;

int main() {

    sql::mysql::MySQL_Driver *driver;
    sql::Connection *con;
    sql::ConnectOptionsMap connection_properties;

    /* Create a connection */
    driver = sql::mysql::MySQL_Driver::get_mysql_driver_instance();
    con = driver->connect("tcp://127.0.0.1:3306", "root", "rootpass");

    /* Connect to the MySQL test database */
    con->setSchema("test");

    delete con;
    return 0;
}

And these are the errors I receive:

error: 'get_mysql_driver_instance' is not a member of 'sql::mysql::MySQL_Driver' driver = sql::mysql::MySQL_Driver::get_mysql_driver_instance();

CMakeFiles/SuperStorage.dir/build.make:62: recipe for target 'CMakeFiles/SuperStorage.dir/main.cpp.o' failed make[3]: * [CMakeFiles/SuperStorage.dir/main.cpp.o] Error 1 CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/SuperStorage.dir/all' failed make[2]: [CMakeFiles/SuperStorage.dir/all] Error 2 CMakeFiles/Makefile2:79: recipe for target 'CMakeFiles/SuperStorage.dir/rule' failed make[1]: [CMakeFiles/SuperStorage.dir/rule] Error 2 Makefile:118: recipe for target 'SuperStorage' failed make: * [SuperStorage] Error 2

Answer 1

This is wrong:

 driver = sql::mysql::MySQL_Driver::get_mysql_driver_instance();

It should be:

driver = sql::mysql::get_mysql_driver_instance();

This is clearly shown in the old MySQL C++ Connector tutorial page for connecting to a database (though the 8.0 documentation seems to have removed all usage examples 😢).