mysql中建表:
create table t_user(
Id int primary key auto_increment,
Name varchar(40),
Password varchar(40),
Email varchar(60),
Birthday date
);
插入数据:
Insert into t_user(name,password,email,birthday)
Values('tiger','123456','tiger@163.com','1994-12-01'),
('rabbit','123456','tiger@163.com','1997-06-11'),
('sheep','123456','sheep@163.com','1995-07-15');
eclipse中查表
package com.monkey1024.jdbc;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class JDBC_Test01 {
public static void main(String[] args) throws Exception {
// 注册驱动
//Class.forName("com.mysql.jdbc.Driver");
Class.forName("com.mysql.cj.jdbc.Driver");
// 获取连接Connection
Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/monkey1024?serverTimezone=UTC", "root", "123456");
System.out.println("mysql connection success!");
//得到执行sql语句的对象Statement
Statement stmt=conn.createStatement();
//执行sql语句,并返回结果
ResultSet rs=stmt.executeQuery("select id,name,password,email,birthday from t_user");
//处理结果
while(rs.next()) {
System.out.println(rs.getObject("id"));
System.out.println(rs.getObject("name"));
System.out.println(rs.getObject("password"));
System.out.println(rs.getObject("email"));
System.out.println(rs.getObject("birthday"));
System.out.println("-----------------");
}
//关闭Connection
rs.close();
stmt.close();
conn.close();
}
}
注意:1) Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/monkey1024?serverTimezone=UTC", "root", "123456")中不添加?serverTimezone=UTC会出现如题报错。
2)executeQuery中的sql不加“;”