3.9
所花时间:40分钟
代码量:27
博客篇:1
了解到的知识点
android数据库连接
1.导入jar包,将jar包复制到build文件夹中,然后as library
2.建表
3.建立连接
package com.example.myapplication; import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; public class DBHelpOpen { private static String diver="com.mysql.jdbc.Driver"; //加入utf-8是为了后面往表中输入中文,表中不会出现乱码的情况 private static String url = "jdbc:mysql://localhost:3306/db1?characterEncoding=utf-8"; private static String user = "root";//用户名 private static String password = "1234";//密码 public static Connection getConn(){ Connection conn = null; try { Class.forName(diver); conn = (Connection) DriverManager.getConnection(url,user,password);//获取连接 } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } return conn; } }