java JSTL fmt:message 和资源包导致 ???hello?
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JSTL fmt:message and resource bundle result in ???hello?
提问by Guy
i am trying to use JSLT. i followed some instructions.
我正在尝试使用 JSLT。我遵循了一些指示。
- i've installed a tomcat on xamppp activated it with the control panel and it's working fine on port 8080.
- in the WEB-INF\lib directory i've added a "jstl-1.2.jar" file and a Messages_en_US.properties
- 我在 xamppp 上安装了一个 tomcat，用控制面板激活它，它在端口 8080 上工作正常。
- 在 WEB-INF\lib 目录中，我添加了一个“jstl-1.2.jar”文件和一个 Messages_en_US.properties
this is my test.jsp:
这是我的 test.jsp：
<fmt:setLocale value="en_US" scope="application"/>
<fmt:setBundle basename="Messages"/>
<fmt:message key="welcome" />
<h1>test</h1>
<p>Counting to three:</p>
<% for (int i=1; i<4; i++) { %>
<p>This number is <%= i %>.</p>
<% } %>
<p>Done counting.</p>
the counting worked so my jsp is valid. but the welcome just shows ???welcome???.
计数有效，所以我的 jsp 有效。但欢迎只是显示???欢迎???。
what am i doing wrong? am i putting the bundles in the right directory? i tried putting the messages bundle in classes and in WEB-INF - no help. i also tried restarting the server - it didn't help.
我究竟做错了什么？我是否将捆绑包放在正确的目录中？我尝试将消息包放在类和 WEB-INF 中 - 没有帮助。我也尝试重新启动服务器 - 它没有帮助。
how can i use string bundles? how can i use several bundles?
我如何使用字符串包？如何使用多个捆绑包？
cheers,
干杯，
回答by nobeh
A number of things could happen.
可能会发生很多事情。
When you say
当你说
<fmt:setLocale value="en_US" ... />
it means that you should have Messages_en.propertiesor Messages_en-US.properties. Using
这意味着你应该有Messages_en.properties或Messages_en-US.properties。使用
<fmt:setBundle basename="Messages" var="msg" />
you should assign the loaded messages into a variable inside the current scope. When you need to print a message, then, you should use
您应该将加载的消息分配到当前范围内的变量中。当您需要打印消息时，您应该使用
<fmt:message key="welcome" bundle="${msg}" />
to display the message.
以显示消息。
