本地已經安裝過mysql5.1版本，應項目需求需要安裝mysql5.7版本；
官方網站下載對應版本：https://downloads.mysql.com/archives/community/
壓縮包下載完成後解壓至本地磁盤，使用CMD命令行進入根目錄下bin文件夾，進行初始化：
D:\mysql-5.7.28\bin>mysqld --initialize --console
2020-03-23T07:44:37.456510Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2020-03-23T07:44:40.977510Z 0 [Warning] InnoDB: New log files created, LSN=45790
2020-03-23T07:44:41.697510Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2020-03-23T07:44:41.917510Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 28112793-6cda-11ea-aed0-00ff8f89dfb9.
2020-03-23T07:44:41.982510Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2020-03-23T07:44:43.960510Z 0 [Warning] CA certificate ca.pem is self signed.
2020-03-23T07:44:45.424510Z 1 [Note] A temporary password is generated for root@localhost: rr(epW#zd0wJ
初始化成功後創建my.ini配置文件。
[client]
port=3309
default-character-set=utf8
[mysqld]
# 設置3309端口
port=3309
# 設置mysql的安裝目錄
basedir=D:\mysql-5.7.28
# 設置mysql數據庫的數據的存放目錄
datadir=D:\mysql-5.7.28\data
# 允許最大連接數
max_connections=200
# 允許連接失敗的次數
max_connect_errors=10
# 服務端使用的字符集默認爲UTF8
character-set-server=utf8
# 創建新表時將使用的默認存儲引擎
default-storage-engine=INNODB
# 默認使用“mysql_native_password”
default_authentication_plugin=mysql_native_password
[mysql]
# 設置mysql客戶端默認字符集
default-character-set=utf8
進行服務安裝，由於之前安裝過一個低版本mysql，本次服務命名爲mysql2。
D:\mysql-5.7.28\bin>mysqld -install mysql2 --defaults-file="D:\mysql-5.7.28\my.ini"
Service successfully installed.
修改註冊表：HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mysql2，修改ImagePath參數值：修改成本次安裝路徑的bin目錄即可，如果未修改該部分內容可能導致服務啓動出現1067錯誤。
啓動服務器即可：
bin>net start mysql2
mysql2 服務正在啓動 .
mysql2 服務已經啓動成功。