这里写目录标题
一级目录二级目录三级目录
一级目录
package com
.wdd0629
.util
;
import java
.sql
.*;
public class DBUtile {
public static Connection
getConnection() throws ClassNotFoundException
, SQLException
{
Class
.forName("com.mysql.jdbc.Driver");
System
.out
.println("连接数据库");
Connection connection
= DriverManager
.getConnection("jdbc:mysql://localhost:3306/testtt?useSSL=false","root","123456");
return connection
;
}
public static void closeAll(ResultSet rs
, Statement stmt
,Connection conn
) throws SQLException
{
if (rs
!=null){
rs
.close();
}
if (stmt
!=null){
stmt
.close();
}
if (conn
!=null){
conn
.close();
}
}
}
二级目录
三级目录
