Spring MVC - JSP - 存储环境特定常量的位置 [英] Spring MVC - JSP - Place to Store Environment Specific Constants
问题描述
在Spring-MVC / JSP应用程序中,您将存储需要由控制器和视图访问的内容,例如特定于环境的base_url,要在javascript中使用的应用程序ID等等吗?
Where in the Spring-MVC/JSP application would you store things that need to be accessed by both the controllers and views such as environment specific base_url's, application ids to be used in javascript and so on?
我已经尝试在我的JSP顶部创建一个应用程序作用域bean然后< jsp:useBean>
,但这并不是'似乎工作正常。
I've tried creating an application scoped bean and then <jsp:useBean>
at the top of my JSPs, but that doesn't seem to be working.
<!-- Environment -->
<bean id="myEnv" class="com.myapp.MyAppEnvironment" scope="application">
<property name="baseUrl" value="http://localhost:8080/myapp/"/>
<property name="videoPlayerId" value="234346565"/>
</bean>
并按以下方式使用
<jsp:useBean id="myEnv" scope="application" type="com.myapp.MyAppEnvironment"/>
推荐答案
什么是 scope =应用
?对我来说这是一个新的。
What is scope="application"
? That's a new one to me.
无论如何,如果您只需要JSP可以访问Spring bean,那么您可以使用以下方法将bean公开给JSTL。 exposedContextBeanNames
InternalResourceViewResolver
的属性。例如:
Anyway, if all you need is for your JSPs to be able to access Spring beans, then you can expose the beans to JSTL using the exposedContextBeanNames
property of InternalResourceViewResolver
. For example:
<bean id="myEnv" class="com.myapp.MyAppEnvironment">
<property name="baseUrl" value="http://localhost:8080/myapp/"/>
<property name="videoPlayerId" value="234346565"/>
</bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="exposedContextBeanNames">
<list>
<value>myEnv</value>
</list>
</property>
</bean>
然后在你的JSP中:
${myEnv.baseUrl}
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