dbutil.java

servletjspjavabean的注册登陆模块

package com.dct.util;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class DBUtil {
	
	private static final String className = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
	
	private static final String url = "jdbc:microsoft:sqlserver://localhost:1433;databasename=test";
	
	private static final String user = "sa";
	
	private static final String password = "admin";
	
	static{
		try{
			Class.forName(className);
		}catch(Exception ex){
			ex.printStackTrace();
		}
	}
	
	public static Connection getConn(){
		Connection conn = null;
		try{
			conn = DriverManager.getConnection(url,user,password);
		}catch(Exception ex){
			ex.printStackTrace();
		}
		return conn;
	}
	
	public static void closeAll(Connection conn,PreparedStatement pstmt,ResultSet rs){
		if(rs != null){
			try{
				rs.close();
			}catch(Exception e){
				e.getStackTrace();
			}
		}
		
		if(pstmt != null){
			try{
				pstmt.close();
			}catch(Exception e){
				e.getStackTrace();
			}
		}
		
		if(conn != null){
			try{
				conn.close();
			}catch(Exception e){
				e.getStackTrace();
			}
		}
	}
	

}