WebClient().DownloadString()返回旧数据 [英] WebClient().DownloadString() returning old data

问题描述

我正在使用此代码从URL获取返回字符串

I am using this code to get the return string from URL

webClient.Encoding = Encoding.UTF8;
response = webClient.DownloadString("http://somesite.com/code.php");
Console.Write(response);

code.php看起来像这样

<?php
$data = file_get_contents('code.txt');
echo $data;
?>

问题是当我更改code.txt文件的内容时，webClient.DownloadString()方法返回了code.txt文件的旧内容.当我在浏览器中打开URL http://somesite.com/code.php时，它运行正常.

The problem is when I change the contents of the code.txt file, the webClient.DownloadString() method returns the old contents of the code.txt file. When I open the URL http://somesite.com/code.php in a browser it works perfectly fine.

任何解决方案将不胜感激！

Any solutions will be appreciated!

我的问题似乎重复了，但我不太理解这里所说的内容: C# WebClient禁用缓存

My question seems to be duplicated but I don't really understand what is said here: C# WebClient disable cache

如果任何人都可以解释并提供示例代码，那就太好了！

If anyone could explain and provide some example code it would be great!

推荐答案

尝试在WebClient上禁用缓存

Try disabling the cache on the WebClient

webClient.CachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore);

MSDN文档在WebClient缓存上

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