目前,我已经实现了一个写入 mysql 数据库的程序......我也在使用 Xcode 和 c++。我已正确导入所有库,但在此行收到 BAD EXCESS 错误消息:
con = driver->connect("tcp://127.0.0.1:3306", "root", "root");
似乎是什么问题?这是完整的程序...
#include <stdlib.h>
#include <iostream>
// Include directly the different
// headers from cppconn/ and mysql_driver.h + mysql_util.h
// (and mysql_connection.h). This will reduce your build time!
#include "mysql_connection.h"
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
using namespace std;
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;
}
编辑所以目前,我查看了这个与我的几乎完全相似的主题,但我仍然很迷茫......我将如何用 cmake 重新编译 mysql 并更改这些标志?
我已经在这个问题上待了几个小时,但还没有真正完成编码......只是用一张脸盯着我的屏幕>:(。