如何获取eclipse JSP表达式语言验证来接受JSP 2.2 EL构造？ [英] How to get eclipse JSP Expression Language validation to accept JSP 2.2 EL constructs?

问题描述

 < c：set var =taskvalue = $ {report.taskMap ['bin：'。concat（bin.id）]}/> 
  

这工作正常，但是Eclipse抱怨说它是一个语法错误，大概是因为'.concat bin.id）'部分是旧版本的JSP中不支持的JSP 2.2扩展。有没有办法告诉Eclipse接受这种语法？或者，还有一种告诉Eclipse不要将JSP验证错误视为错误的方法，并将其标记为警告？我宁愿不完全关闭验证和mdash;它是有用的—但是将项目标记为包含错误导致各种问题进一步下降。

解决方案

似乎是一个长期的Eclipse验证错误：

https://bugs.eclipse.org/bugs/show_bug.cgi?id=352491

撰写文章（提出错误6年后） ），仍然看起来似乎没有被正确修复。

另请参阅这个类似的问题。

I have a page with the following JSP tag:

<c:set var="task" value="${report.taskMap['bin:'.concat(bin.id)]}" />

This works fine, but Eclipse complains about it being a syntax error, presumably because the '.concat(bin.id)' part is a JSP 2.2 extension not supported in older versions of JSP. Is there any way of telling Eclipse to accept this syntax? Or, alternatively, is there a way of telling Eclipse not to consider JSP validation errors as errors, and mark them as warnings instead? I'd rather not turn off validation entirely — it is useful — but having the project marked as containing an error is causing all kinds of problems further down the line.

解决方案

Seems to be a longstanding Eclipse validation bug:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=352491

As of writing (6 years after the bug was raised), it still doesn't appear to have been properly fixed.

Also see this similar question.

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