重装系统后,今天mysql提示1045错误无法连接上,找了很久得出方法如下: 修改root密码即可正常. 1,进入mysql控制台选择: 2,use mysql; 3,update user set password=password('新密') where user='root'; 4,flush privileges; 5,完成…
使用Connector/J连接MySQL数据库,程序运行较长时间后就会报以下错误: Communications link failure,The last packet successfully received from the server was *** millisecond ago.The last packet successfully sent to the server was *** millisecond ago. 其中错误还会提示你修改wait_timeout或是使用Co…