MySQL 连接器 C++ - 犯错误1

发布于 2024-08-05 12:56:46 字数 1460 浏览 2 评论 0原文

我正在用 C++ 编写一个应用程序（使用带有 Linux GCC 的 Eclipse），该应用程序应该与我的 MySQL 服务器交互。我已经下载了 MySQL Connector C++ a，进行了预编译，并将文件复制到目录（/usr/lib、/usr/include）中。我在 Eclipse 中项目属性的 GCC C++ 链接器部分中引用了（“mysqlcppconn”）。我的代码直接来自MySQL参考（Hello World），除了我删除了错误处理和最后的删除语句（我什至没有到达那里，所以有什么意义）

#include <stdlib.h>
#include <iostream>
#include "mysql_connection.h"
#include "mysql_driver.h"
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
using namespace std;

int main(void)
{
  sql::Driver *driver;
  sql::Connection *con;
  sql::Statement *stmt;
  sql::ResultSet *res;

  driver = get_driver_instance();
  con = driver->connect("tcp://127.0.0.1:3306", "root", "root");
  con->setSchema("test");

  stmt = con->createStatement();
  res = stmt->executeQuery("SELECT 'Hello World!' AS _message");

  while (res->next()) 
  {
    cout << "\t... MySQL replies: ";
    cout << res->getString("_message") << endl;
    cout << "\t... MySQL says it again: ";
    cout << res->getString(1) << endl;
  }  
return EXIT_SUCCESS;
}

现在当我编译这个时，它给了我一个 make error 1 ，手册页说这意味着我需要重新编译我的包。我已经尝试过，它不起作用。

我似乎到处都陷入了死胡同。谁能告诉我如何解决这个问题？（make 真的可以告诉我应该重新编译什么。）有人对我出错的地方有任何提示/建议/想法吗？

编辑 - 对代码进行了一些更改，但总体思路是相同的。

更新 - 如果我使用终端而不是 exlipse 来 make，它告诉我问题显然是连接器需要 libstdc++.so.5，而我有 libstdc++.so.6。

原文

I'm writing an application in C++ (using Eclipse with Linux GCC) that's supposed to interact with my MySQL server.
I've downloaded the MySQL Connector C++ a, precompiled, and copied the files into the directories (/usr/lib, /usr/include). I've referenced in in the GCC C++ Linker Section of the Project Properties in Eclipse ( "mysqlcppconn"). My code comes directly from the MySQL Reference (Hello World) except I removed error handling and the delete statements at the end (I'm not even getting there so whats the point)

#include <stdlib.h>
#include <iostream>
#include "mysql_connection.h"
#include "mysql_driver.h"
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
using namespace std;

int main(void)
{
  sql::Driver *driver;
  sql::Connection *con;
  sql::Statement *stmt;
  sql::ResultSet *res;

  driver = get_driver_instance();
  con = driver->connect("tcp://127.0.0.1:3306", "root", "root");
  con->setSchema("test");

  stmt = con->createStatement();
  res = stmt->executeQuery("SELECT 'Hello World!' AS _message");

  while (res->next()) 
  {
    cout << "\t... MySQL replies: ";
    cout << res->getString("_message") << endl;
    cout << "\t... MySQL says it again: ";
    cout << res->getString(1) << endl;
  }  
return EXIT_SUCCESS;
}

now when I compile this, It gives me a make error 1, which the man page says means I need to recompile my packages. I've tried it, it doesn't work.

I seem to have hit dead ends everywhere. Can anyone tell me how to fix this problem? (make could really tell me what I should recompile.) Anyone have any tips/suggestions/ideas where I went wrong?

Edit - Chagned the code a bit, but the general idea is the same.

Update - If I use the terminal instead of exlipse to make, it tells me that the problem is obviously that the connector wants libstdc++.so.5 whilst I have libstdc++.so.6.

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