打开my.ini，在mysqld下面添加skip-name-resolve，停止mysql服务，再启动。即可
[mysqld] character-set-server=utf8 bind-address = 0.0.0.0 port = 3306 basedir=D:/mysql-5.7.24-winx64 datadir=D:/MySQL_Data_OQA/data max_connections=2000 default-storage-engine=INNODB skip-name-resolve [mysql] default-character-set=utf8 [mysql.server] default-character-set=utf8 [client] default-character-set=utf8
其它参考方法：
C:WindowsSystem32driversetc，hosts文件，查看是否如下配置。把文件属性-安全-编辑，添加用户权限后，才能修改保存。
# Copyright (c) 1993-2009 Microsoft Corp. # # This is a sample HOSTS file used by Microsoft TCP/IP for Windows. # # This file contains the mappings of IP addresses to host names. Each # entry should be kept on an individual line. The IP address should # be placed in the first column followed by the corresponding host name. # The IP address and the host name should be separated by at least one # space. # # Additionally, comments (such as these) may be inserted on individual # lines or following the machine name denoted by a '#' symbol. # # For example: # # 102.54.94.97 rhino.acme.com # source server # 38.25.63.10 x.acme.com # x client host # localhost name resolution is handled within DNS itself. # 127.0.0.1 localhost # ::1 localhost