JDBC连接MySQL数据库

 1 package com.db;
 2 
 3 import java.sql.DriverManager;
 4 import java.sql.SQLException;
 5 
 6 import com.mysql.jdbc.Connection;
 7 
 8 public class DBHelper{
 9         //数据库，端口号，数据库
10     private String dbUrl = "jdbc:mysql://localhost:3306/DormitoryManager";
11         //数据库用户名
12     private String dbUser = "root";
13         //数据库登录密码
14     private String dbPassword = "123456";
15         //数据库驱动固定
16     private String jdbcName = "com.mysql.jdbc.Driver";
17     
18     //连接数据库
19     public Connection getconn() {
20         
21         Connection conn = null;    //创建Connection连接对象
22         try {
23             Class.forName(jdbcName); //加载数据库驱动并将其注册到驱动管理列表中
24         } catch (ClassNotFoundException e) {
25             e.printStackTrace();
26         }
27         try {
28                         //连接数据库
29             conn =(Connection) DriverManager.getConnection(dbUrl,dbUser,dbPassword);
30         } catch (SQLException e) {
31             e.printStackTrace();
32         }
33         return conn;    
34     }
35 }