Java连接mysql数据库

import java.sql.*;
//声明Connection对象
Connection con;
//驱动程序名
String driver = "com.mysql.jdbc.Driver";
//URL指向要访问的数据库名mydata
String url = "jdbc:mysql://127.0.0.1:33/test?useUnicode=true&characterEncoding=UTF-8
//MySQL配置时的用户
String user = "root";
//MySQL配置时的密码
String password = "root";
//遍历查询结果集
try {
//加载驱动程序
Class.forName(driver);
//1.getConnection()方法，连接MySQL数据库！！
con = DriverManager.getConnection(url,user,password);
if(!con.isClosed())
System.out.println("Succeeded connecting to the Database!");
//2.创建statement类对象，用来执行SQL语句！！
Statement statement = con.createStatement();
//要执行的SQL语句
//                                 String sql = "insert into demo(id,name,pos,salary) values(001,'水电费方','业务','1600') ";
//String sql = "insert into demo(id,name,pos,salary) values(?,?,?,?) ";
String sql = "insert into weather(address,temperature,weatherstatus,date) values(?,?,?,?) ";
PreparedStatement ps=null;
ps=con.prepareStatement(sql);
ps.setString(1,address);
ps.setString(2,temperature);
ps.setString(3,weather);
ps.setString(4,date);
con.close();
con.close();
} catch(ClassNotFoundException e) {
//数据库驱动类异常处理
System.out.println("Sorry,can`t find the Driver!");
e.printStackTrace();
} catch(SQLException e) {
//数据库连接失败异常处理
e.printStackTrace();
}catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}finally{
System.out.println("数据库数据成功获取！！");
}
}