#终于知道什么叫不会走先会跑了，刚开始接触第一个case就是数据库自动备份，我可是都没安装过啊？！ 发完牢骚开始干活
首先，因为业务已经上线，不能随便动，先搭建测试环境吧
规划一下
版本：mysql-5.7.14-winx64.zip 从官网下载
系统：windows 7 64bit
解压缩到本地目录 D:appmysql57 #注意，非系统盘，非中文
将my-default.ini 复制一份重命名为my.ini 添加如下内容，先保证能开启服务
# For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the # *** default location during install, and will be replaced if you # *** upgrade to a newer version of MySQL. [mysqld] # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. innodb_buffer_pool_size = 128M # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # These are commonly set, remove the # and set as required. # basedir = ..... # datadir = ..... # port = ..... # server_id = ..... basedir="D:appmysql57" datadir="D:appmysql57data" port=3306 max_connections=200 character-set-server=utf8 default-storage-engine=INNODB # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
修改环境变量path，增加bin目录
在命令行中cd到bin， 输入mysqld -install MySQL --defaults-file="D:appmysql57my.ini" 添加服务
在命令行中输入初始化命令 .mysqld.exe --initialize 会生成data目录，并且生成初始的root密码 ，否则net start mysql 会无法开启服务 #新版本特殊要求
之后服务可以开启，从后缀为err的文件中取得密码
复制默认密码，使用默认密码登录mysql
必须使用命令先修改密码，否则啥也不让干
mysql> alter user 'root'@'localhost' identified by 'redhat';
Query OK, 0 rows affected (0.00 sec)
密码修改成功，可以查询数据库了
安装完成
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在此要感谢liongis 、卒子和另一位其他博客的朋友，谢谢你们分享的经验~