//工具类
publicclass JDBCUtil {
static  String url = "jdbc:mysql://127.0.0.1:3306/sjt2405";//路径
static String user = "root";//数据库账号
static String password = "ROOT";//数据库密码


static{
//加载驱动
try{
            Class.forName("com.mysql.cj.jdbc.Driver");
}catch(ClassNotFoundException e){
            e.printStackTrace();
}
}

//获取连接
publicstatic Connection getConnection(){
        Connection conn=null;
try{
            conn= DriverManager.getConnection(url,user,password);
}catch(SQLException e){
            e.printStackTrace();
}
return conn;
}


publicstaticvoidclose(Connection conn, PreparedStatement ps, ResultSet rs){

try{
if(conn!=null){
                conn.close();
}
if(ps!=null){
                ps.close();
}
if(rs!=null){
                rs.close();
}
}catch(SQLException e){
            e.printStackTrace();
}
}
}