從官網(wǎng)下載MySQL-5.7.11-winx64壓縮版,安裝后發(fā)現(xiàn)竟然有密碼,嘗試無果,通過修改密碼搞定
安裝成功后:
關(guān)閉mysql服務(wù)在跟目錄下修改文件my.ini,內(nèi)容如下:注意兩點  1:內(nèi)容中myql的安裝目錄換成讀者的安裝目錄;2最后一行代表登錄是否需要密碼,這里我們繞過密碼登錄進入mysql修改密碼,所以不注釋skip-grant-tables
| ####################配置文件開始################### # 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. [client] default-character-set=utf8 [mysqld] port=3306 # D:/Program Files/mysql-5.7.11-winx64/mysql-5.7.11-winx64 basedir ="D:/Program Files/mysql-5.7.11-winx64/mysql-5.7.11-winx64/" datadir ="D:/Program Files/mysql-5.7.11-winx64/mysql-5.7.11-winx64/data/" tmpdir ="D:/Program Files/mysql-5.7.11-winx64/mysql-5.7.11-winx64/data/" socket ="D:/Program Files/mysql-5.7.11-winx64/mysql-5.7.11-winx64/data/mysql.sock" log-error="D:/Program Files/mysql-5.7.11-winx64/mysql-5.7.11-winx64/data/mysql_error.log" #server_id = 2 #skip-locking max_connections=100 table_open_cache=256 query_cache_size=1M tmp_table_size=32M thread_cache_size=8 innodb_data_home_dir="D:/Program Files/mysql-5.7.11-winx64/mysql-5.7.11-winx64/data/" innodb_flush_log_at_trx_commit =1 innodb_log_buffer_size=128M innodb_buffer_pool_size=128M innodb_log_file_size=10M innodb_thread_concurrency=16 innodb-autoextend-increment=1000 join_buffer_size = 128M sort_buffer_size = 32M read_rnd_buffer_size = 32M max_allowed_packet = 32M explicit_defaults_for_timestamp=true sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION" skip-grant-tables ####################配置文件結(jié)束################### | 
修改保存后,在cmd中,由于我們已經(jīng)在path配置了環(huán)境變量,所以我們可以直接啟動mysql
| net start mysql | 
啟動成功后,登錄mysql
| mysql -u root -p | 
密碼為空 這里我們直接回車登錄成功
登錄成功后,我們修改數(shù)據(jù)庫執(zhí)行如下
| use mysql | 
| update user set authentication_string=password("123456") where user="root"; | 
這里注意最后必需加上分號
成功后刷新
| flush privileges; | 
致此我們密碼就修改成功了,退出關(guān)閉mysql服務(wù),然后把my.ini中最后一行注釋掉,從新啟動mysql服務(wù),發(fā)現(xiàn)新密碼生效。
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