ImageResizer shows wrong image

问题

I am using ImageResizer in my website with DiskCache plugin enabled. Randomly for some images it shows another file in the output and I should clear the cache to fix this problem while after some time I see this again for other images. Wrong image is cached just for one size of the image.

And one more thing: some times in chrome where image resizer shows wrong image this problem is solved by Ctrl+F5.

Edit 1: This is my Web.config file:

<resizer>
    <diagnostics enableFor="AllHosts" />
    <pipeline fakeextensions=".aspx" />
    <plugins>
      <add name="Mybook.utilities.ImageResizerLocalReader" />
    </plugins>
    <diskCache dir="~/imagecache" autoClean="false" hashModifiedDate="true" />
    <clientcache minutes="10080" />
</resizer>

<system.web>
    <httpModules>
      <add name="ImageResizingModule" type="ImageResizer.InterceptModule"/>
    </httpModules>
</system.web>

...

<system.webServer>
    <modules>
      <add name="ImageResizingModule" type="Mybook.utilities.ImageInterceptModule" />
    </modules>
</system.webServer>

I still can't see diagnostic page

回答1:

Remove your custom plugin and your custom HttpHandler.

Delete

<modules>
  <add name="ImageResizingModule" type="Mybook.utilities.ImageInterceptModule" />
</modules>

Replace with

<modules>
  <add name="ImageResizingModule" type="ImageResizer.InterceptModule" />
</modules>

And remove

 <add name="Mybook.utilities.ImageResizerLocalReader" />

Also, change <pipeline fakeextensions=".aspx" /> to <pipeline fakeextensions=".ashx" />, you don't want to conflict with web pages.

Last, move this to a new, clean, standard web application in that does not map itself to the root of the C:\ drive or do anything else crazy. Don't put web apps in the root or in a user folder. Use Inetpub or c:\www\myapp or something; double check your NTFS permissions are correct.

If you still experience the issue after you've eliminated environmental problems, then you should open a new question with simplified reproduction steps.

UPDATE

This was caused by a global variable in the custom plugin.

来源：https://stackoverflow.com/questions/32242470/imageresizer-shows-wrong-image

标签

ASP.NET

imageresizer