diff --git "a/work/com/java/minxi/java_20240524/java_2302_\345\210\230\345\256\227\346\227\255_2344310210/ConnectDatabase.java" "b/work/com/java/minxi/java_20240524/java_2302_\345\210\230\345\256\227\346\227\255_2344310210/ConnectDatabase.java" new file mode 100644 index 0000000000000000000000000000000000000000..4d17ef68cafb2e88b0b3918cc66934cff33b36ce --- /dev/null +++ "b/work/com/java/minxi/java_20240524/java_2302_\345\210\230\345\256\227\346\227\255_2344310210/ConnectDatabase.java" @@ -0,0 +1,36 @@ +package com.java.minxi.java_20240524.java_2302_刘宗旭_2344310210; + +import java.sql.*; + +public class ConnectDatabase { + public static void main(String[] args) throws Exception { + //注册驱动 + Class.forName("com.mysql.cj.jdbc.Driver"); + + //建立连接 + String url = "jdbc:mysql://localhost:3306/student?serverTimezone=Asia/Shanghai"; + String userName = "root"; + String password = "123456"; + Connection conn = DriverManager.getConnection(url, userName, password); + + //定义sql + String sql = "SELECT * FROM student"; + + //获取执行sql的对象 Statement + Statement stmt = conn.createStatement(); + + //执行SQL查询 + int count = stmt.executeUpdate(sql); + + //处理结果 + if (count > 0) { + System.out.println("查询成功!"); + }else { + System.out.println("查询失败!"); + } + + //释放资源 + stmt.close(); + conn.close(); + } +}