学生寮管理システム-データベースDBUtil.java

package dataBase;

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

//建立数据库
public class DBUtil {
    
    
	//创建连接并初始化
    static public  Connection conn = null;
    static public  Statement st = null;
    static public  ResultSet rs = null;
  
    //获取链接并捕捉异常
    public Connection getConn()throws SQLException, ClassNotFoundException{
    
    	
    	try {
    
    
				//加载驱动
				Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
			
				//创建连接
				conn = DriverManager.getConnection(
					"jdbc:sqlserver://127.0.0.1:1433;DatabaseName=dormitory", "sa", "xu1714799060");
			
		 }catch (Exception e) {
    
    		
			 		 
		 }			 
		return conn;
	}

	//关闭连接
	public void close(){
    
    
		try{
    
    
			if(!conn.isClosed()){
    
    
				conn.close();
			}
		}catch(Exception e){
    
    
			e.printStackTrace();
		}
	}

}