# apache 配置静态元素过期时间

修改虚拟主机配置文件

```bash
vim /usr/local/apache/conf/extra/httpd-vhosts.conf
# 基于动态库mod_expires.c 保证编译时存在(service httpd -M)

<VirtualHost *:80>
    ...
    ...
    <IFModule mod_expires.c>
        ExpiresActive on #功能启动
        ExpiresByType image/gif "access plus 1 days" #gif图片，缓存1天
        ExpiresByType image/jpeg "access plus 2 days" #jpeg图，缓存2天
        ExpiresByType image/png "access plus 24 hours" #png图，缓存24小时
        ExpiresByType text/css "now plus 2 hours"
        ExpiresByType applicantion/x-javascript "now plus 2 hours"
        ExpiresByType applicantion/x-shockwave-flash "now plus 2 hours"
        ExpiresDefault "now plus 0 min"
    </IfModule>
</VirtualHost>
```

重新加载配置文件

```
# 检查配置文件
/usr/local/apache2/bin/apachectl –t
# 重新加载配置文件
/usr/local/apache2/bin/apachectl graceful
```


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