checklogin.java

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package com.ivan.login;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import com.ivan.db.Database;

public class CheckLogin
{

	public static boolean Check(String name,String pwd)
	{
		Connection connection;
		ResultSet rs=null;
		String sql="select * from user where userName='"+name.trim()+"' and userPwd='"+pwd.trim()+"';";
		
		
		connection = Database.getConnection();            //建立数据库连接
		Statement stmt=null;
		
		try 
		{
			stmt= connection.createStatement();
			rs=stmt.executeQuery(sql);
			if(rs.next())
			{
				
				return true;
			}
			else 
				return false;
			
		}
		catch (SQLException e)
		{
			
			e.printStackTrace();
		}
		
		finally
		{
			try 
			{
				connection.close();
			} 
			catch (SQLException e)
			{
				
				e.printStackTrace();
			}
		}
		return false;
	}
}