mysql數據庫文件操作

//============================================================================
// Name        : CExercise.cpp
// Author      : Haier
// Version     : 0.1
// Copyright   : Your copyright notice
// Description : Connect Mysql in C++, Ansi-style
//============================================================================

#include <iostream>
#include <iomanip>
#include <cstring>
#include <fstream>
#include <winsock.h>
#include "mysql.h"
using namespace std;

int main() {
	MYSQL mysql;
	MYSQL_RES *result;
	MYSQL_ROW row;
	unsigned int i;
	fstream file;
	char test[800];

	file.open("test.txt",ios::out|ios::in);
	if(!file.is_open())
	{
		cout<<"open file failed !"<<endl;
		return 0;
	}

	mysql_init(&mysql);
	if(!mysql_real_connect(&mysql,"10.87.30.1X","root","XXXXX","mysql",3306,NULL,0))
	{
		cout<<mysql_error(&mysql)<<endl;
		cout<<"mysql connect failed !"<<endl;
		return 0;
	}

	mysql_query(&mysql,"set names gbk");
	if(mysql_real_query(&mysql,"select * from user",(unsigned long)strlen("select * from user")))
	{
		cout<<"select failed !"<<endl;
		return 0;
	}

	if(NULL==(result=mysql_store_result(&mysql)))
	{
		cout<<"stroe result failed !"<<endl;
		return 0;
	}

	cout<<mysql_num_fields(result)<<endl;
	while((row=mysql_fetch_row(result)))
	{
		for(i=0; i<15; i++)
		{
			file<<setw(50)<<setiosflags(ios::left)<<row[i];;
		}
		file<<endl;
	}

	mysql_free_result(result);
	mysql_close(&mysql);

	file.seekg(0);
	while(!file.eof())
	{
		file.getline(test,800);
		cout<<test<<endl;
	}

	file.close();
	return 0;
}

運行示例：

42
localhost      root    *6BB4237EB743229105EE4368DDA7DC67ED2CA2AD9         Y     Y<span style="white-space:pre">	</span>Y<span style="white-space:pre">	</span>Y<span style="white-space:pre">	</span>Y<span style="white-space:pre">	</span>N<span style="white-space:pre">	</span>N