package jdbc;

import java.sql.DriverManager;

import java.sql.SQLException;

import java.sql.Connection;

import java.sql.Statement;

/**

* @author ： CodeWater

* @create ：2022-03-08-16:30

* @Function Description ：crud

* account表删除一条记录

*/

public class JdbcDemo04 {

public static void main(String[] args) {

Connection conn = null;

Statement stmt = null;

try {

Class.forName("com.mysql.jdbc.Driver");

conn = DriverManager.getConnection("jdbc:mysql:///db3", "root", "root");

String sql = "delete from account where id = 4 ";

stmt = conn.createStatement();

int count = stmt.executeUpdate(sql);

System.out.println(count);

if (count > 0) {

System.out.println("添加成功");

} else {

System.out.println("添加失败。。。");

}

} catch (ClassNotFoundException e) {

e.printStackTrace();

} catch (SQLException e) {

e.printStackTrace();

} finally {

if (stmt != null) {

try {

stmt.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

if (conn != null) {

try {

conn.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

}

}

}