user.cpp

实现基本的图书馆管理系统

// User.cpp: implementation of the CUser class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "图书馆管理系统.h"
#include "User.h"
#include "ADOConn.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CUser::CUser()
{
	UserName = "";
	Pwd = "";
	UserType="";
}

CUser::~CUser()
{

}

CString CUser::GetUserName()
{
	return UserName;
}

void CUser::SetUserName(CString cUserName)
{
	UserName = cUserName;
}

CString CUser::GetPwd()
{
	return Pwd;
}

void CUser::SetPwd(CString cPwd)
{
	Pwd = cPwd;
}

CString CUser::GetUserType()
{
	return UserType;
}

void CUser::SetUserType(CString cUserType)
{
	UserType = cUserType;
}

//数据库操作
int CUser::HaveName(CString cUserName)
{	
	//连接数据库

	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();
	//设置SELECT语句
	_bstr_t vSQL;
	vSQL = "SELECT * FROM Users WHERE UserName='" + cUserName + "'";
	
	//执行SELECT语句
	_RecordsetPtr m_pRecordset;
	m_pRecordset = m_AdoConn.GetRecordSet(vSQL);
	if (m_pRecordset->adoEOF)
		return -1;
	else
		return 1;

	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

void CUser::sql_insert()
{	
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();
	//设置INSERT语句

	_bstr_t vSQL;
	vSQL = "INSERT INTO Users(UserName,Pwd,UserType) VALUES('" + UserName + "','" + Pwd + "','"+UserType+"')";	
	//执行INSERT语句
	m_AdoConn.ExecuteSQL(vSQL);	
	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

void CUser::sql_updatePwd(CString cUserName)
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();
	//设置UPDATE语句
//	CString strType;
//	strType.Format("%d", User_type);

	_bstr_t vSQL;
	vSQL = "UPDATE Users SET Pwd='" + Pwd + "' WHERE UserName='" + cUserName + "'";
	//执行UPDATE语句
	m_AdoConn.ExecuteSQL(vSQL);	
	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

void CUser::sql_delete(CString cUserName)
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();
	//设置DELETE语句
	_bstr_t vSQL;
	vSQL = "DELETE FROM Users WHERE UserName='" + cUserName	+ "'";
	//执行DELETE语句
	m_AdoConn.ExecuteSQL(vSQL);	
	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

//根据员工编号读取所有字段值
void CUser::GetData(CString cUserName)
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();
	//设置SELECT语句
	_bstr_t vSQL;
	vSQL = "SELECT * FROM Users WHERE UserName='" + cUserName + "'";
	//执行SELETE语句
	_RecordsetPtr m_pRecordset;
	m_pRecordset = m_AdoConn.GetRecordSet(vSQL);

	//返回各列的值
	if (m_pRecordset->adoEOF)
		CUser();
	else
	{
		UserName = cUserName;
		Pwd = (LPCTSTR)(_bstr_t)m_pRecordset->GetCollect("Pwd");
		UserType = (LPCTSTR)(_bstr_t)m_pRecordset->GetCollect("UserType");
	}
	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}