JSTL-如何获得价值的价值? [英] JSTL - how to get a value of value?

问题描述

我在jsp页面中有此文件:${category.name_ENG}，其中汽车"为值

I have this in my jsp page : ${category.name_ENG} which has "Car" as value

但是我有另一种当地语言的本地语言:${locale}.因此，在我的jsp中，我想根据locale变量显示汽车价值.

but i have the local language in an another varialbes : ${locale}. So in my jsp i want to display the car value depending on the locale variable.

我尝试了那些:

${category.name_${locale}}
${category['name_${locale}']}
${category['name_{locale}']}

但是他们都没有工作吗? 有帮助吗?

but none of them worked? any help?

推荐答案

使用JSTL <c:set>连接EL中的字符串，然后使用大括号表示法[]来访问具有动态键的属性.

Use JSTL <c:set> to concatenate a string in EL and then use brace notation [] to access properties with a dynamic key.

<c:set var="name" value="name_${locale}" />
${category[name]}

顺便说一句，如果唯一的功能要求是国际化/本地化，那么还有比这样摆弄更好的方法:

By the way, if the sole functional requirement is internationalization/localization, then there are way much better ways than fiddling like this: How to internationalize a Java web application?

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