20201103王永苗
数据库加载驱动,创建连接,执行sql语句,关闭资源
package com.itlaobing.dbhelper;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
public class DBHelper {
/*用main测试*/
public static void main(String[] args) {
try {
save();
} catch (Exception e) {
e.printStackTrace();
}
}
/*定义添加用户的方法*/
public static void save() throws Exception {
//1、加载数据库驱动
Class.forName("com.mysql.jdbc.Driver");
//2、创建数据库连接
Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/db_user","root","");
//3、拼写sql语句
String sql = "INSERT INTO t_user (userName,`passWord`,gender)VALUES('宫本武藏','rb123','女')";
//4、发送sql
PreparedStatement prepareStatement = connection.prepareStatement(sql);
//5、执行sql
int i = prepareStatement.executeUpdate();
//6、处理结果
if(i > 0) {
System.out.println("添加成功");
}
//7、关闭资源
prepareStatement.close();
connection.close();
}
}
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