blocks|key|1207842|text|这感觉有点像黑客，但您可以编写一个自定义的java.util.Map实现，当get(key)被调用时，它将从Spring+MessageSource中获取消息。此Map可以添加到msg密钥下的模型中，允许您使用${msg.myKey}取消对消息的引用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1207843|也许还有其他动态结构不是JSP所能识别的，它不是Map，但我想不出一个。|1207844|public+class+I18nShorthandInterceptor+extends+HandlerInterceptorAdapter+{

++++private+static+final+Logger+logger+=+Logger.getLogger(I18nShorthandInterceptor.class);

++++@Autowired
++++private+MessageSource+messageSource;

++++@Autowired
++++private+LocaleResolver+localeResolver;

++++@Override
++++public+boolean+preHandle(HttpServletRequest+request,
++++++++++++HttpServletResponse+response,+Object+handler)+throws+Exception+{

++++++++request.setAttribute("msg",+new+DelegationMap(localeResolver.resolveLocale(request)));

++++++++return+true;
++++}

++++private+class+DelegationMap+extends+AbstractMap<String,+String>+{
++++++++private+final+Locale+locale;

++++++++public+DelegationMap(Locale+locale)+{
++++++++++++this.locale+=+locale;
++++++++}

++++++++@Override
++++++++public+String+get(Object+key)+{
++++++++++++try+{
++++++++++++++++return+messageSource.getMessage((String)+key,+null,+locale);
++++++++++++}+catch+(NoSuchMessageException+ex)+{
++++++++++++++++logger.warn(ex.getMessage());
++++++++++++++++return+(String)+key;
++++++++++++}
++++++++}
++++++++@Override
++++++++public+Set<Map.Entry<String,+String>>+entrySet()+{
++++++++++++//+no+need+to+implement+this
++++++++++++return+null;
++++++++}

++++}
}|code-block|syntax|javascript|1207845|作为另一种选择：|1207846|<fmt:message+key="key.name"+var="var"+/>|1207847|然后使用${var}作为常规EL。|1207848|entityMap^0|L|D|12|8|1P|D|29|3|2H|3|2X|C|0|O|3|0|0|0|0|4|6|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|17|8|@$9|18|A|19|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1A|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1B|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|1C|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1D|8|@$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]]|T|$]]

This feels like a bit of a hack, but you could write a custom implementation of <code>java.util.Map</code> which, when <code>get(key)</code> is called, fetches the message from the Spring <code>MessageSource</code>. This <code>Map</code> could be added to the model under the <code>msg</code> key, allowing you to dereference the messages using <code>${msg.myKey}</code>.

Perhaps there's some other dynamic structure than is recognised by JSP EL that isn't a <code>Map</code>, but I can't think of one offhand.

<pre><code>public class I18nShorthandInterceptor extends HandlerInterceptorAdapter {

 private static final Logger logger = Logger.getLogger(I18nShorthandInterceptor.class);

 @Autowired
 private MessageSource messageSource;

 @Autowired
 private LocaleResolver localeResolver;

 @Override
 public boolean preHandle(HttpServletRequest request,
 HttpServletResponse response, Object handler) throws Exception {

 request.setAttribute("msg", new DelegationMap(localeResolver.resolveLocale(request)));

 return true;
 }

 private class DelegationMap extends AbstractMap&lt;String, String&gt; {
 private final Locale locale;

 public DelegationMap(Locale locale) {
 this.locale = locale;
 }

 @Override
 public String get(Object key) {
 try {
 return messageSource.getMessage((String) key, null, locale);
 } catch (NoSuchMessageException ex) {
 logger.warn(ex.getMessage());
 return (String) key;
 }
 }
 @Override
 public Set&lt;Map.Entry&lt;String, String&gt;&gt; entrySet() {
 // no need to implement this
 return null;
 }

 }
}
</code></pre>

As an alternative:

<pre><code>&lt;fmt:message key="key.name" var="var" /&gt;
</code></pre>

Then use <code>${var}</code> as a regular EL.

blocks|key|1207885|text|如果你想要的只是一个快捷方式，你可以创建一个标记文件，比如btn.tag|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1207886|<%25@tag%25>
<%25@+attribute+name="key"+required="true"+%25>
<%25@+taglib+uri="http://java.sun.com/jsp/jstl/fmt"+prefix="fmt"%25>

<input+type="button"+value="<fmt:message+key="${key}"+/>"+/>|code-block|syntax|javascript|1207887|并像这样使用它|1207888|<%25@+taglib+tagdir="/WEB-INF/tags"+prefix="tags"%25>
...
<tags:btn+key="submitKey"+>
...|1207889|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If all you want is a shortcut, you can create a tag file, say btn.tag

<pre><code>&lt;%@tag%&gt;
&lt;%@ attribute name="key" required="true" %&gt;
&lt;%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%&gt;

&lt;input type="button" value="&lt;fmt:message key="${key}" /&gt;" /&gt;
</code></pre>

And use it like this

<pre><code>&lt;%@ taglib tagdir="/WEB-INF/tags" prefix="tags"%&gt;
...
&lt;tags:btn key="submitKey" &gt;
...
</code></pre>

blocks|key|1207928|text|我找到了一种不用拦截器的方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1207929|${pageScope["org.springframework.web.servlet.tags.REQUEST_CONTEXT"]
++++.getMessage("hello")}|code-block|syntax|javascript|1207930|但是它太长了，而且密钥"org.springframework.web.servlet.tags.REQUEST_CONTEXT“可能并不适用于所有版本的spring。|1207931|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I find a way without any interceptor:

<pre><code>${pageScope["org.springframework.web.servlet.tags.REQUEST_CONTEXT"]
 .getMessage("hello")}
</code></pre>

but it's too long, and the key "org.springframework.web.servlet.tags.REQUEST_CONTEXT" may not be compatible for all versions of spring.

blocks|key|993553|text|我为每种语言都使用了一个属性文件，下面的代码效果很好：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|993554|<input+type="button"+value="${msg['myKey']}"+/>|offset|length|style|CODE|993555|entityMap^0|0|0|1B|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

I use a properties file for each language, and the following works well:

<code>&lt;input type="button" value="${msg['myKey']}" /&gt;</code>

It's tedious and ugly to write things like:

<pre><code>&lt;input type="button" value="&lt;fmt:message key="submitKey" /&gt;" /&gt;
</code></pre>

And in case you want to nest the message tag in another tag's attribute it becomes even worse.

Is there any shorthand for that. For example (like in JSF):

<pre><code>&lt;h:commandButton value="#{msg.shareKey}" /&gt;
</code></pre>

(spring-mvc-only solutions applicable)

Is there a shorthand for <fmt:message key="key" />?

写这样的东西既乏味又丑陋：<input type="button" value="<fmt:message key="submitKey" />" />如果您想将消息标记嵌套在另一个标记的属性中，情况会变得更糟。有没有什么速记。例如(就像在JSF中)：<h:commandButton value="#{msg.shar...

问有没有<fmt:message key="key“/>的简写？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问有没有<fmt:message key="key“/>的简写？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问有没有<fmt:message key="key“/>的简写？
EN