package cn.itcast.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class jdbcdemo2
{
    public static void main(String[] args)
    {
        Connection connection = null;
        Statement statement = null;
        try {
            //注册驱动
            Class.forName("com.mysql.jdbc.Driver");

            //获取数据库连接对象
            try {
                 connection = DriverManager.getConnection
//("jdbc:mysql://10.211.55.17:3306/db4", "root", "qwer12345");
//?useUnicode=true&characterEncoding=utf8"加这两个参数解决mysql插入乱码问好问题
("jdbc:mysql://10.211.55.17:3306/db4?useUnicode=true&characterEncoding=utf8", "root", "qwer12345");

                //定一个增删改sql
                String sql = "insert into account values(null,'王五',3000)";
                //String sql = "update account set name ='wangwu' where balance=3000";
                //String sql = "delete from account where id = 3";
                 statement = connection.createStatement();
                int count = statement.executeUpdate(sql);
                //System.out.println(i);
                if(count > 0){
                    System.out.println("添加成功");
                }else {
                    System.out.println("添加失败");
                }

            } catch (SQLException e) {
                e.printStackTrace();
            }


        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } finally {
            //避免空指针异常
            if(statement != null)
            {
                try
                {
                    statement.close();
                }
                catch (SQLException e)
                {
                    e.printStackTrace();
                }
            }
            if(connection != null)
            {
                try
                {
                    statement.close();
                }
                catch (SQLException e)
                {
                    e.printStackTrace();
                }
            }


        }
    }
}