jsp如何在没有javascript的情况下干净地获取基本url [英] jsp how to get base url cleanly without javascript

问题描述

我试图获取基本URL(例如: https://stackoverflow.com/)，而不使用JavaScript.但是似乎有很多方法可以将它与 https://stackoverflow.com/questions/ask 分开，所以我想知道最干净的方法是什么(或者是否有首选方法).

I'm trying to get the base url (for example: https://stackoverflow.com/) without using javascript. But there seem to be a lot of ways to split it off from https://stackoverflow.com/questions/ask so I was wondering what the cleanest way was (or if there's a preferred method).

jstl函数可能会解决问题，但是我希望它尽可能地动态，因此，如果/questions/部分要更改为/question/，则不必更改它. /p>

jstl functions would probably do the trick, but I'd like it to be as dynamically as possible, so I wouldn't have to change it if the /questions/ part was to change to let's say /question/.

${pageContext.request.scheme}://${pageContext.request.serverName}:${pageContext.request.serverPort} 

这是一个选择，但是有点冗长.

Is an option, but it's well a bit verbose.

感谢您的任何投入.

推荐答案

在功能标签库.

${fn:replace(pageContext.request.requestURL, pageContext.request.requestURI, '')}

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