【JDBC】jdbc 连接数据库Mysql 代码

package test;import java.sql.Connection;import java.sql.DriverManager;public class DBConnUtil {private static String DRIVER = "com.mysql.jdbc.Driver"; private static String URL = "jdbc:mysql://localhost:3306/test"; private static String USERNAME = "root"; private static String PASSWORD = "root";public static Connection conn = null;public static Connection getConn(){try {Class.forName(DRIVER);conn = DriverManager.getConnection(URL, USERNAME, PASSWORD);} catch (Exception e) {e.printStackTrace();}return conn;}}