附zabbixdocker鏡像地址
https://hub.docker.com/u/zabbix/
zabbix官方文檔
https://www.zabbix.com/cn/download
1、關閉防火牆和selinux
# systemctl stop firewalld
# vi /etc/selinux/config
SELINUX=permissive
# setenforce 0
[root@localhost ~]# systemctl is-active firewalld active [root@localhost ~]# [root@localhost ~]# systemctl stop firewalld [root@localhost ~]# [root@localhost ~]# getenforce Enforcing [root@localhost ~]# setenforce 0 [root@localhost ~]# [root@localhost ~]# vi /etc/selinux/config # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - No SELinux policy is loaded. SELINUX=permissive # SELINUXTYPE= can take one of three two values: # targeted - Targeted processes are protected, # minimum - Modification of targeted policy. Only selected processes are protected. # mls - Multi Level Security protection. SELINUXTYPE=targeted
2、添加zabbix存儲庫
# rpm -ivh https://repo.zabbix.com/zabbix/4.2/rhel/7/x86_64/zabbix-release-4.2-1.el7.noarch.rpm
[root@localhost ~]# rpm -ivh https://repo.zabbix.com/zabbix/4.2/rhel/7/x86_64/zabbix-release-4.2-1.el7.noarch.rpm Retrieving https://repo.zabbix.com/zabbix/4.2/rhel/7/x86_64/zabbix-release-4.2-1.el7.noarch.rpm warning: /var/tmp/rpm-tmp.fHl7KV: Header V4 RSA/SHA512 Signature, key ID a14fe591: NOKEY Preparing... ################################# [100%] Updating / installing... 1:zabbix-release-4.2-1.el7 ################################# [100%] [root@localhost ~]# ls /etc/yum.repos.d/ mylocal.repo zabbix.repo
3、安裝zabbix-server-mysql和zabbix-web-mysql
# yum install -y zabbix-server-mysql zabbix-web-mysql
要在 MySQL支持下安裝Zabbix服務器
要在 MySQL支持下安裝Zabbix前端
Installed: zabbix-server-mysql.x86_64 0:3.0.26-1.el7 zabbix-web-mysql.noarch 0:3.0.26-1.el7 Dependency Installed: OpenIPMI-libs.x86_64 0:2.0.23-2.el7 OpenIPMI-modalias.x86_64 0:2.0.23-2.el7 dejavu-fonts-common.noarch 0:2.33-6.el7 dejavu-sans-fonts.noarch 0:2.33-6.el7 fontpackages-filesystem.noarch 0:1.44-8.el7 fping.x86_64 0:3.10-4.el7 httpd.x86_64 0:2.4.6-88.el7.centos httpd-tools.x86_64 0:2.4.6-88.el7.centos iksemel.x86_64 0:1.4-2.el7.centos libX11.x86_64 0:1.6.5-2.el7 libX11-common.noarch 0:1.6.5-2.el7 libXau.x86_64 0:1.0.8-2.1.el7 libXpm.x86_64 0:3.5.12-1.el7 libjpeg-turbo.x86_64 0:1.2.90-6.el7 libtool-ltdl.x86_64 0:2.4.2-22.el7_3 libxcb.x86_64 0:1.13-1.el7 libxslt.x86_64 0:1.1.28-5.el7 libzip.x86_64 0:0.10.1-8.el7 mailcap.noarch 0:2.1.41-2.el7 net-snmp-libs.x86_64 1:5.7.2-37.el7 php.x86_64 0:5.4.16-46.el7 php-bcmath.x86_64 0:5.4.16-46.el7 php-cli.x86_64 0:5.4.16-46.el7 php-common.x86_64 0:5.4.16-46.el7 php-gd.x86_64 0:5.4.16-46.el7 php-ldap.x86_64 0:5.4.16-46.el7 php-mbstring.x86_64 0:5.4.16-46.el7 php-mysql.x86_64 0:5.4.16-46.el7 php-pdo.x86_64 0:5.4.16-46.el7 php-xml.x86_64 0:5.4.16-46.el7 t1lib.x86_64 0:5.1.2-14.el7 unixODBC.x86_64 0:2.3.1-11.el7 zabbix-web.noarch 0:3.0.26-1.el7 Complete!
要使用MySQL支持安裝Zabbix代理
# yum install zabbix-proxy-mysql -y
[root@localhost ~]# yum install zabbix-proxy-mysql -y Installed: zabbix-proxy-mysql.x86_64 0:4.2.0-1.el7 Complete!
對服務器進行自身監控
安裝zabbix-agent客戶端
# yum install zabbix-agent -y
設置開機自啟動
# systemctl start zabbix-agent
# chkconfig zabbix-agent on
Installed: zabbix-agent.x86_64 0:4.2.0-1.el7 Complete! [root@localhost ~]# [root@localhost ~]# chkconfig zabbix-agent on Note: Forwarding request to 'systemctl enable zabbix-agent.service'. Created symlink from /etc/systemd/system/multi-user.target.wants/zabbix-agent.service to /usr/lib/systemd/system/zabbix-agent.service. [root@localhost ~]#
4、安裝並且啟動mysql5.6及初始化數據庫信息
# rpm -ivh http://repo.mysql.com/yum/mysql-5.6-community/el/6/x86_64/mysql-community-release-el6-5.noarch.rpm
[root@localhost ~]# rpm -ivh http://repo.mysql.com/yum/mysql-5.6-community/el/6/x86_64/mysql-community-release-el6-5.noarch.rpm Retrieving http://repo.mysql.com/yum/mysql-5.6-community/el/6/x86_64/mysql-community-release-el6-5.noarch.rpm Preparing... ################################# [100%] Updating / installing... 1:mysql-community-release-el6-5 ################################# [100%] [root@localhost ~]# cd /etc/yum.repos.d/ [root@localhost yum.repos.d]# [root@localhost yum.repos.d]# ls mylocal.repo mysql-community.repo mysql-community-source.repo zabbix.repo [root@localhost yum.repos.d]#
# yum install -y mysql-community-server
Installed: mysql-community-libs.x86_64 0:5.6.43-2.el6 mysql-community-server.x86_64 0:5.6.43-2.el6 Dependency Installed: mysql-community-client.x86_64 0:5.6.43-2.el6 mysql-community-common.x86_64 0:5.6.43-2.el6 perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7 perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7 perl-DBI.x86_64 0:1.627-4.el7 perl-IO-Compress.noarch 0:2.061-2.el7 perl-Net-Daemon.noarch 0:0.48-5.el7 perl-PlRPC.noarch 0:0.2020-14.el7 Replaced: mariadb-libs.x86_64 1:5.5.60-1.el7_5 Complete!
啟動mysqld服務
# systemctl start mysqld
設置開機自啟動
# chkconfig mysqld on
[root@localhost ~]# systemctl start mysqld [root@localhost ~]# [root@localhost ~]# systemctl status mysqld ● mysqld.service - SYSV: MySQL database server. Loaded: loaded (/etc/rc.d/init.d/mysqld; bad; vendor preset: disabled) Active: active (running) since Wed 2019-04-03 01:21:03 CST; 12s ago Docs: man:systemd-sysv-generator(8) Process: 68300 ExecStart=/etc/rc.d/init.d/mysqld start (code=exited, status=0/SUCCESS) Main PID: 68584 (mysqld) CGroup: /system.slice/mysqld.service ├─68380 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --socket=/var/lib/mysql/mysql.sock --pid-file=/var/run/mysqld/mysqld.pid --basedi... └─68584 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/log/mysqld.... Apr 03 01:21:02 localhost.localdomain mysqld[68300]: Note: new default config file not created. Apr 03 01:21:02 localhost.localdomain mysqld[68300]: Please make sure your config file is current Apr 03 01:21:02 localhost.localdomain mysqld[68300]: WARNING: Default config file /etc/my.cnf exists on the system Apr 03 01:21:02 localhost.localdomain mysqld[68300]: This file will be read by default by the MySQL server Apr 03 01:21:02 localhost.localdomain mysqld[68300]: If you do not want to use this, either remove it, or use the Apr 03 01:21:02 localhost.localdomain mysqld[68300]: --defaults-file argument to mysqld_safe when starting the server Apr 03 01:21:02 localhost.localdomain mysqld[68300]: [ OK ] Apr 03 01:21:03 localhost.localdomain mysqld[68300]: Starting mysqld: [ OK ] Apr 03 01:21:03 localhost.localdomain systemd[1]: mysqld.service: Supervising process 68584 which is not our child. We'll most likely not notice w...t exits. Apr 03 01:21:03 localhost.localdomain systemd[1]: Started SYSV: MySQL database server.. Hint: Some lines were ellipsized, use -l to show in full. [root@localhost ~]# [root@localhost ~]# chkconfig mysqld on [root@localhost ~]#
初始化數據庫信息
# mysql_secure_installation
[root@localhost ~]# mysql_secure_installation NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY! In order to log into MySQL to secure it, we'll need the current password for the root user. If you've just installed MySQL, and you haven't set the root password yet, the password will be blank, so you should just press enter here. Enter current password for root (enter for none): //回車 OK, successfully used password, moving on... Setting the root password ensures that nobody can log into the MySQL root user without the proper authorisation. Set root password? [Y/n] y New password: Re-enter new password: Password updated successfully! Reloading privilege tables.. ... Success! By default, a MySQL installation has an anonymous user, allowing anyone to log into MySQL without having to have a user account created for them. This is intended only for testing, and to make the installation go a bit smoother. You should remove them before moving into a production environment. Remove anonymous users? [Y/n] y ... Success! Normally, root should only be allowed to connect from 'localhost'. This ensures that someone cannot guess at the root password from the network. Disallow root login remotely? [Y/n] n ... skipping. By default, MySQL comes with a database named 'test' that anyone can access. This is also intended only for testing, and should be removed before moving into a production environment. Remove test database and access to it? [Y/n] y - Dropping test database... ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist ... Failed! Not critical, keep moving... - Removing privileges on test database... ... Success! Reloading the privilege tables will ensure that all changes made so far will take effect immediately. Reload privilege tables now? [Y/n] y ... Success! All done! If you've completed all of the above steps, your MySQL installation should now be secure. Thanks for using MySQL! Cleaning up...
5、創建zabbix數據庫，創建zabbix賬號
# mysql -uroot -p
創建一個zabbix庫並設置為utf8的字符編碼格式
mysql> create database zabbix character set utf8 collate utf8_bin;
創建賬戶並且授權設置密碼
給來自loclhost的用戶zabbxi分配可對數據庫zabbix所有表進行所有操作的權限，並且設定密碼為zabbix
mysql> grant all privileges on zabbix.* to 'zabbix'@'localhost' identified by 'zabbix';
刷新
mysql> flush privileges;
[root@localhost ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 10 Server version: 5.6.43 MySQL Community Server (GPL) Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> create database zabbix character set utf8 collate utf8_bin; Query OK, 1 row affected (0.00 sec) mysql> grant all privileges on zabbix.* to 'zabbix'@'localhost' identified by 'zabbix'; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> exit Bye
6、導入默認的zabbix數據庫信息
# zcat /usr/share/doc/zabbix-server-mysql-4.2.0/create.sql.gz | mysql zabbix -uzabbix -pzabbix
[root@localhost ~]# cd /usr/share/doc/zabbix-server-mysql-4.2.0/ [root@localhost zabbix-server-mysql-4.2.0]# [root@localhost zabbix-server-mysql-4.2.0]# ls AUTHORS ChangeLog COPYING create.sql.gz NEWS README [root@localhost zabbix-server-mysql-4.2.0]# [root@localhost zabbix-server-mysql-4.2.0]# zcat /usr/share/doc/zabbix-server-mysql-4.2.0/create.sql.gz | mysql zabbix -uzabbix -pzabbix Warning: Using a password on the command line interface can be insecure. [root@localhost zabbix-server-mysql-4.2.0]#
7、修改zabbix_server.conf的配置文件
# grep ^DB /etc/zabbix/zabbix_server.conf
[root@localhost ~]# grep ^DB /etc/zabbix/zabbix_server.conf DBHost=localhost DBName=zabbix DBUser=zabbix DBPassword=zabbix
# vi /etc/php.ini
在最后一行添加一下內容
php_value max_execution_time 300 php_value memory_limit 128M php_value post_max_size 16M php_value upload_max_filesize 2M php_value max_input_time 300
8、修改系統時間
安裝ntp服務
# yum install ntpdate -y
調整為亞洲上海時區
# ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
同步時間服務器
# ntpdate us.pool.ntp.org
[root@localhost ~]# yum install ntpdate -y …………………… …………………… Installed: ntpdate.x86_64 0:4.2.6p5-28.el7.centos Complete! [root@localhost ~]# ntpdate us.pool.ntp.org 4 Apr 10:00:11 ntpdate[11904]: step time server 4.53.160.75 offset -32351.195618 sec [root@localhost ~]# date Thu Apr 4 10:00:26 CST 2019 [root@localhost ~]# [root@localhost ~]# ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime [root@localhost ~]# [root@localhost ~]# ntpdate us.pool.ntp.org 4 Apr 14:40:12 ntpdate[2807]: step time server 72.30.35.89 offset -32392.501158 sec [root@localhost ~]# [root@localhost ~]# date Thu Apr 4 14:40:32 CST 2019 [root@localhost ~]#
9、修改配置文件/etc/httpd/conf.d/zabbix.conf，時區改成 Asia/Shanghai
# vi /etc/httpd/conf.d/zabbix.conf
[root@localhost ~]# vi /etc/httpd/conf.d/zabbix.conf # # Zabbix monitoring system php web frontend # Alias /zabbix /usr/share/zabbix <Directory "/usr/share/zabbix"> Options FollowSymLinks AllowOverride None Require all granted <IfModule mod_php5.c> php_value max_execution_time 300 php_value memory_limit 128M php_value post_max_size 16M php_value upload_max_filesize 2M php_value max_input_time 300 php_value max_input_vars 10000 php_value always_populate_raw_post_data -1 php_value date.timezone Asia/Shanghai </IfModule> </Directory> <Directory "/usr/share/zabbix/conf"> Require all denied </Directory> <Directory "/usr/share/zabbix/app"> Require all denied </Directory> <Directory "/usr/share/zabbix/include"> Require all denied </Directory> <Directory "/usr/share/zabbix/local"> Require all denied </Directory>
10、啟動apache/zabbix-server服務並設置為開機啟動
啟動apache
# systemctl start httpd
# systemctl enable httpd
[root@localhost ~]# systemctl start httpd [root@localhost ~]# systemctl status httpd ● httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled) Active: active (running) since Wed 2019-04-03 01:41:59 CST; 19s ago Docs: man:httpd(8) man:apachectl(8) Main PID: 68678 (httpd) Status: "Total requests: 0; Current requests/sec: 0; Current traffic: 0 B/sec" CGroup: /system.slice/httpd.service ├─68678 /usr/sbin/httpd -DFOREGROUND ├─68679 /usr/sbin/httpd -DFOREGROUND ├─68680 /usr/sbin/httpd -DFOREGROUND ├─68681 /usr/sbin/httpd -DFOREGROUND ├─68682 /usr/sbin/httpd -DFOREGROUND └─68683 /usr/sbin/httpd -DFOREGROUND Apr 03 01:41:59 localhost.localdomain systemd[1]: Starting The Apache HTTP Server... Apr 03 01:41:59 localhost.localdomain httpd[68678]: AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using l... message Apr 03 01:41:59 localhost.localdomain systemd[1]: Started The Apache HTTP Server. Hint: Some lines were ellipsized, use -l to show in full. [root@localhost ~]# systemctl enable httpd Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service. [root@localhost ~]#
啟動zabbix-server服務並設置為開機啟動
# systemctl start zabbix-server
# systemctl enable zabbix-server
[root@localhost ~]# systemctl start zabbix-server [root@localhost ~]# [root@localhost ~]# systemctl enable zabbix-server Created symlink from /etc/systemd/system/multi-user.target.wants/zabbix-server.service to /usr/lib/systemd/system/zabbix-server.service. [root@localhost ~]#
查看zabbix-server日志
# tailf /var/log/zabbix/zabbix_server.log
[root@localhost ~]# tailf /var/log/zabbix/zabbix_server.log 4618:20190404:164956.559 server #28 started [icmp pinger #1] 4620:20190404:164956.560 server #30 started [preprocessing manager #1] 4622:20190404:164956.560 server #32 started [preprocessing worker #2] 4625:20190404:164956.561 server #35 started [lld worker #1] 4624:20190404:164956.561 server #34 started [lld manager #1] 4626:20190404:164956.561 server #36 started [lld worker #2] 4623:20190404:164956.562 server #33 started [preprocessing worker #3] 4619:20190404:164956.562 server #29 started [alert manager #1] 4621:20190404:164956.562 server #31 started [preprocessing worker #1] 4610:20190404:164958.602 enabling Zabbix agent checks on host "Zabbix server": host became available
zabbix-server的web目錄
# ls /usr/share/zabbix
[root@localhost ~]# ls /usr/share/zabbix
actionconf.php audio discoveryconf.php image.php map.import.php slides.php
adm.gui.php auditacts.php disc_prototypes.php images map.php srv_status.php
adm.housekeeper.php auditlogs.php favicon.ico img overview.php styles
adm.iconmapping.php browserwarning.php fonts imgstore.php profile.php sysmap.php
adm.images.php chart2.php graphs.php include queue.php sysmaps.php
adm.macros.php chart3.php history.php index_http.php report2.php templates.php
adm.other.php chart4.php host_discovery.php index.php report4.php toptriggers.php
adm.regexps.php chart5.php hostgroups.php items.php robots.txt tr_events.php
adm.triggerdisplayoptions.php chart6.php hostinventoriesoverview.php js screenconf.php trigger_prototypes.php
adm.triggerseverities.php chart7.php hostinventories.php jsLoader.php screenedit.php triggers.php
adm.valuemapping.php chart.php host_prototypes.php jsrpc.php screen.import.php usergrps.php
adm.workingtime.php charts.php host_screen.php latest.php screens.php users.php
api_jsonrpc.php conf hosts.php local services.php zabbix.php
app conf.import.php httpconf.php locale setup.php
applications.php correlation.php httpdetails.php maintenance.php slideconf.php
10、訪問網站，例如：http://本機IP/zabbix，如下圖所示：
PHP版本
password是我們設置的數據庫密碼zabbix
輸入名字
查看zabbix基礎信息
finish
Zabbix·server的默認賬號Admin 密碼zabbix，如圖所示：
基礎界面如下
根據提示可以看到上面圖形界面的操作都寫到一個配置文件中
# more /etc/zabbix/web/zabbix.conf.php
[root@localhost ~]# more /etc/zabbix/web/zabbix.conf.php <?php // Zabbix GUI configuration file. global $DB; $DB['TYPE'] = 'MYSQL'; $DB['SERVER'] = 'localhost'; $DB['PORT'] = '0'; $DB['DATABASE'] = 'zabbix'; $DB['USER'] = 'zabbix'; $DB['PASSWORD'] = 'zabbix'; // Schema name. Used for IBM DB2 and PostgreSQL. $DB['SCHEMA'] = ''; $ZBX_SERVER = 'localhost'; $ZBX_SERVER_PORT = '10051'; $ZBX_SERVER_NAME = 'zabbix4.2'; $IMAGE_FORMAT_DEFAULT = IMAGE_FORMAT_PNG; [root@localhost ~]#
移除或改名web目錄下面的setup.php文件
# mv setup.php setup.php.bak
[root@localhost ~]# cd /usr/share/zabbix
[root@localhost zabbix]#
[root@localhost zabbix]# ls
actionconf.php audio discoveryconf.php image.php map.import.php slides.php
adm.gui.php auditacts.php disc_prototypes.php images map.php srv_status.php
adm.housekeeper.php auditlogs.php favicon.ico img overview.php styles
adm.iconmapping.php browserwarning.php fonts imgstore.php profile.php sysmap.php
adm.images.php chart2.php graphs.php include queue.php sysmaps.php
adm.macros.php chart3.php history.php index_http.php report2.php templates.php
adm.other.php chart4.php host_discovery.php index.php report4.php toptriggers.php
adm.regexps.php chart5.php hostgroups.php items.php robots.txt tr_events.php
adm.triggerdisplayoptions.php chart6.php hostinventoriesoverview.php js screenconf.php trigger_prototypes.php
adm.triggerseverities.php chart7.php hostinventories.php jsLoader.php screenedit.php triggers.php
adm.valuemapping.php chart.php host_prototypes.php jsrpc.php screen.import.php usergrps.php
adm.workingtime.php charts.php host_screen.php latest.php screens.php users.php
api_jsonrpc.php conf hosts.php local services.php zabbix.php
app conf.import.php httpconf.php locale setup.php
applications.php correlation.php httpdetails.php maintenance.php slideconf.php
[root@localhost zabbix]#
[root@localhost zabbix]# mv setup.php setup.php.bak
[root@localhost zabbix]#
設置新的密碼，界面的主題、語言和登陸后顯示的默認界面等
解決中文亂碼無法顯示的問題
Windows字體目錄地址
C:\Windows\Fonts
復制到zabbix服務器中
查找Zabbix所使用的語言包
# find / -name *font* -print | grep zabbix
# ll `find / -name *font* -print | grep zabbix`
[root@localhost ~]# find / -name *font* -print | grep zabbix /etc/alternatives/zabbix-web-font /var/lib/alternatives/zabbix-web-font /usr/share/zabbix/fonts /usr/share/zabbix/fonts/graphfont.ttf [root@localhost ~]# [root@localhost ~]# ll `find / -name *font* -print | grep zabbix` lrwxrwxrwx. 1 root root 38 Apr 4 14:43 /etc/alternatives/zabbix-web-font -> /usr/share/fonts/dejavu/DejaVuSans.ttf lrwxrwxrwx. 1 root root 33 Apr 4 14:43 /usr/share/zabbix/fonts/graphfont.ttf -> /etc/alternatives/zabbix-web-font -rw-r--r--. 1 root root 86 Apr 4 14:43 /var/lib/alternatives/zabbix-web-font /usr/share/zabbix/fonts: total 0 lrwxrwxrwx. 1 root root 33 Apr 4 14:43 graphfont.ttf -> /etc/alternatives/zabbix-web-font [root@localhost ~]#
備份本身語言包
# mv /usr/share/fonts/dejavu/DejaVuSans.ttf /usr/share/fonts/dejavu/DejaVuSans.ttf.bak
替換成Windows的語言包
# mv simkai.ttf /usr/share/fonts/dejavu/DejaVuSans.ttf
[root@localhost ~]# mv /usr/share/fonts/dejavu/DejaVuSans.ttf /usr/share/fonts/dejavu/DejaVuSans.ttf.bak [root@localhost ~]# [root@localhost ~]# ls anaconda-ks.cfg simkai.ttf [root@localhost ~]# [root@localhost ~]# mv simkai.ttf /usr/share/fonts/dejavu/DejaVuSans.ttf [root@localhost ~]#
刷新頁面已經恢復
參考博客：
https://www.cnblogs.com/Sungeek/p/9069999.html
http://www.cnblogs.com/xiewenming/p/7732144.html
zabbix4.2學習請參考這位博主
https://www.cnblogs.com/AutoSmart/p/10505090.html