favicon.ico未找到错误? [英] favicon.ico not found error?

问题描述

我有一个使用Spring Security 3在Tomcat上运行的应用程序.我没有为网站定义任何图标，但是当我从登录页面登录后从IDE sometimes运行应用程序时，它将页面重定向到:

I have an application that uses Spring Security 3 runs on Tomcat. I didn't define any favicon for my website however when I run my application from my IDE sometimes after I login from my login pages it redirects my page to:

http://localhost:8080/favicon.ico

并说:

404 Not Found

此处有一个主题: http://论坛. springsource.org/showthread.php?100901-redirect-to-favicon.ico 但是我没有定义favicon.ico，Spring Security 3是否默认需要它(如果是，为什么有时会发生?)

There is a topic here: http://forum.springsource.org/showthread.php?100901-redirect-to-favicon.ico however I didn't define a favicon.ico does Spring Security 3 wants it by default(if yes, why it happens sometimes?)

推荐答案

以下是说明:

问题是，当浏览器缓存为空并且有用户进入时， 这是发生了什么:

The issue is, when the browser cache is empty and a user comes in, here is what happens:

• 用户请求URL"/".此URL已被缓存.
• 浏览器向"/favicon.ico"发出请求.这个网址变成 身份验证后重定向到的新URL.
• 用户发布登录表单，并将其重定向到"/favicon.ico".

• the user requests URL "/". This URL is cached.
• the browser makes a requests to "/favicon.ico". This URL becomes the new URL where to redirect to upon authentication.
• the user posts the login form and is redirected to "/favicon.ico".

要解决此问题，您需要将"/favicon.ico"设置为不安全 资源:

To fix this, you need to set "/favicon.ico" as being a non-secured resources:

<intercept-url pattern="/favicon.ico" access="ROLE_ANONYMOUS" />

摘自: http://blog.idm .fr/2010/09/spring-security-redirecting-to-faviconico.html

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