package com.chenzebin.jdbc;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.Statement;public class JDBCTest {public static void main(String[] ar

在命令窗口找到mysql服务的目录文件默认是个人\磁盘\usr\local\mysql\support-files 目录下执行命令启动MySQL服务sudo /usr/local/MySQL/support-files/mysql.server start停止MySQL服务sudo /usr/local/mysql/support-files/mysql.server stop重启MySQL

A build only device cannot be used to run this target.造成这个错误的原因是，你选择的版本号，在虚拟机中没有，所以我们要重新选择版本号