今天更改了一个线上的css文件，由于项目部署了cdn，需要对缓存进行清理。有两种方式;

一、清除cdn缓存

二、更改页面引入文件地址，如加入版本号

第一种方式需要登录阿里云，然后进行缓存清理操作，比较麻烦;

第二种方式如果是涉及的页面数量过多，在更改起来也是非常麻烦的。

我们使用的阿里云的cdn产品，记得以往的产品都有api接口，想通过阿里云cdn接口模式对链接进行缓存清除操作。

下面是php实例：

一、安装SDK

使用composer进行安装，命令：

composer require alibabacloud/client

二、获取阿里云参数

1、accessKeyId

2、accessSecret

建议使用子密钥

1. <?php?
2. /**?
3. ?*?Created?by?PhpStorm.?
4. ?*?User:?Administrator?
5. ?*?Date:?2019/10/29?0029?
6. ?*?Time:?10:10?
7. ?*/?
8. ??
9. namespace?App\index\controller;?
10. ??
11. use?AlibabaCloud\Client\AlibabaCloud;?
12. use?AlibabaCloud\Client\Exception\ClientException;?
13. use?AlibabaCloud\Client\Exception\ServerException;?
14. use?think\Controller;?
15. use?think\Request;?
16. ??
17. class?Cdn?extends?Controller?
18. {?
19. ????protected?$accessKeyId;?
20. ????protected?$accessSecret;?
21. ??
22. ????public?function?__construct(Request?$request?=?null)?
23. ????{?
24. ????????parent::__construct($request);?
25. ????????$this->accessKeyId??=?'123456789';?
26. ????????$this->accessSecret?=?'123456789';?
27. ????}?
28. ??
29. ????public?function?index()?
30. ????{?
31. ????????$url?=?'http://www.demo.com/css/index.css'；?
32. ????????AlibabaCloud::accessKeyClient($this->accessKeyId,?$this->accessSecret)?
33. ????????????->regionId('cn-hangzhou')?
34. ????????????->asDefaultClient();?
35. ????????try?{?
36. ????????????$result?=?AlibabaCloud::rpc()?
37. ????????????????->product('Cdn')?
38. ????????????????//?->scheme('https')?//?https?|?http?
39. ????????????????->version('2018-05-10')?
40. ????????????????->action('RefreshObjectCaches')?
41. ????????????????->method('POST')?
42. ????????????????->host('cdn.aliyuncs.com')?
43. ????????????????->options([?
44. ????????????????????'query'?=>?[?
45. ????????????????????????'RegionId'???=>?"cn-hangzhou",?
46. ????????????????????????'ObjectPath'?=>?$url,?
47. ????????????????????],?
48. ????????????????])?
49. ????????????????->request();?
50. ????????????$res????=?$result->toArray();?
51. ????????????if(isset($res['RefreshTaskId']))?{?
52. ????????????????echo?'刷新成功';?
53. ????????????}?else?{?
54. ????????????????echo?'刷新失败';?
55. ????????????}?
56. ????????}?
57. ????????catch(ClientException?$e)?{?
58. ????????????echo?$e->getErrorMessage()?.?PHP_EOL;?
59. ????????}?
60. ????????catch(ServerException?$e)?{?
61. ????????????echo?$e->getErrorMessage()?.?PHP_EOL;?
62. ????????}?
63. ??
64. ????}?
65. }?

建议在提交刷新后，2分钟后查看效果，注意要清除浏览器缓存哦!