Question

我尝试在Eclipse中通过C ++连接到MySQL数据库，其中包含互联网上的所有建议，但它们都没有完全有用。我正在使用Eclipse与MinGW连接到MySQL。我添加了：

C:\Program Files\boost
C:\Program Files\MySQL\MySQL Connector C++ 1.1.3\include
C:\Program Files\MySQL\MySQL Server 5.6\include

到include目录和

C:\Program Files\MySQL\MySQL Server 5.6\lib
C:\Program Files\MySQL\Connector C++ 1.1.2\lib\opt

到图书馆目录（-L）。

也添加了

libmysql.lib
mysqlcppconn-static.lib

to Additional Dependencies（-l）。

代码是：

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

#include "mysql_driver.h"
#include "mysql_connection.h"

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

using namespace std;
using namespace sql::mysql;

int main(void)
{
cout << endl;
cout << "Running 'SELECT 'Hello World!' AS _message'..." << endl;

try {
  sql::Driver *driver;
  sql::Connection *con;
  sql::Statement *stmt;
  sql::ResultSet *res;

  /* Create a connection */
  driver = get_driver_instance();
  con = driver->connect("tcp://127.0.0.1:3306", "root", "root");
  /* Connect to the MySQL test database */
  con->setSchema("test");

  stmt = con->createStatement();
  res = stmt->executeQuery("SELECT 'Hello World!' AS _message");
  while (res->next()) {
    cout << "\t... MySQL replies: ";
    /* Access column data by alias or column name */
    cout << res->getString("_message") << endl;
    cout << "\t... MySQL says it again: ";
    /* Access column fata by numeric offset, 1 is the first column */
    cout << res->getString(1) << endl;
  }
  delete res;
  delete stmt;
  delete con;

} catch (sql::SQLException &e) {
  cout << "# ERR: SQLException in " << __FILE__;
  cout << "(" << __FUNCTION__ << ") on line " << __LINE__ << endl;
  cout << "# ERR: " << e.what();
  cout << " (MySQL error code: " << e.getErrorCode();
  cout << ", SQLState: " << e.getSQLState() << " )" << endl;
}

cout << endl;

return EXIT_SUCCESS;
}

但是它们似乎都没有工作，并且出现了很多错误。现在我收到错误 "call of overloaded 'get_driver_instance()' is ambiguous"你们中的任何人都有过在C ++环境下通过Eclipse连接MySQL的经验。我不是Linux用户，Linux上的教程也不起作用。

Answer 1

只需替换

driver = get_driver_instance();

由此

 driver = sql::get_driver_instance();

它只是名称空间问题;

从Eclipse（CDT）连接到MySQL

1 个答案: