spring 中带有 url-pattern 重定向的上下文路径 [英] Context path with url-pattern redirect in spring

问题描述

我对tomcat服务器上的路径和网址有点困惑，让我解释一下:

I'm having a bit of a puzzle with paths and urls on a tomcat server, let me explain:

我的tomcat webapp目录是:/server

My tomcat webapp directory is: /server

我已经在目录/server/myapp/subfolder 中部署了一个 spring 应用程序

I have deployed a spring application in directory /server/myapp/subfolder

这意味着我的上下文路径/server/myapp

This means my context path /server/myapp

我的 servlet 的 url-pattern 为/subfolder/*

My servlet has an url-pattern of /subfolder/*

可以通过 url http://server.com/myapp/subfolder/ 访问我的 servlet

My servlet can be reached at url http://server.com/myapp/subfolder/

在我的许多弹簧控制器中，我返回一个重定向:

In a many of my spring controllers i return a redirect:

return "redirect:/item/list";

这会将访问者重定向到 http://server.com/myapp/item/list

This redirects the visitor to http://server.com/myapp/item/list

这当然会导致 404，因为正确的 url 是:http://server.com/myapp/subfolder/item/list

This of course results in a 404 cause the right url is: http://server.com/myapp/subfolder/item/list

这可以很容易地解决，只需将所有内容都放在一个单独的 web 应用程序中或简单地删除 url-pattern.但两者都不可能，因为单独的 webapp 意味着不同的类加载器(导致其他系统出现问题)，并且像/这样的 url-pattern 会与服务器上运行的其他应用程序发生冲突.

This can easily be solved by just putting everything is a separate webapp or simply removing the url-pattern. But both aren't possible because a separate webapp means a different class-loader (causes problem with other systems) and url-pattern like / will conflict with other applications running on the server.

我可以将重定向更改为redirect:/subfolder/item/list"，这将修复重定向.

I can change my redirect to "redirect:/subfolder/item/list", that will fix the redirect.

是否有更好的解决方案，以便我不必在使用上下文路径的任何地方手动添加子文件夹/"?

Is there maybe a better solution so that i don't have to manually add "subfolder/" everywhere the contextpath is used?

推荐答案

最后我简单做了一个 util 函数:

In the end i simply made a util function:

public String redirect(String path){
    return "redirect:/subfolder"+path;
}

有点 hacky，但它允许我在 url-pattern 更改时快速更改子文件夹".

Bit hacky, but it allows me to quickly change "subfolder" in case the url-pattern changes.

视图中的@url 标签也使用上下文路径，所以我创建了自己的@url 标签，将子文件夹"添加到上下文路径中.

The @url tag in the view also uses contextpath, so i created my own @url tag which adds "subfolder" to the contextpath.

现在春天似乎很开心，我再也没有任何 404 了.

Spring now seems happy, i don't get any 404's anymore.

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