blocks|key|903658|text|PropertyPlaceholderConfigurer只能解析Spring配置中的占位符(XML或注解)。在使用Properties+bean的Spring应用程序中非常常见。您可以通过以下方式从视图中访问它(假设您使用的是InternalResourceViewResolver)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|903659|<bean+id="properties"+class="org.springframework.beans.factory.config.PropertiesFactoryBean">
++++<property+name="locations">
++++++++<list><value>classpath:config.properties</value></list>
++++</property>
</bean>

<bean+class="org.springframework.web.servlet.view.InternalResourceViewResolver">
++++<property+name="prefix"+value="/WEB-INF/views/"/>
++++<property+name="suffix"+value=".jsp"/>
++++<property+name="exposedContextBeanNames">
++++++++<list><value>properties</value></list>
++++</property>
</bean>|code-block|syntax|javascript|903660|然后，在您的JSP中，您可以使用${properties.myProperty}或${properties['my.property']}。|903661|entityMap^0|0|T|1M|A|36|S|0|0|G|O|15|S|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|N|$]]

<code>PropertyPlaceholderConfigurer</code> can only parse placeholders in Spring configuration (XML or annotations). Is very common in Spring applications use a <code>Properties</code> bean. You can access it from your view this way (assuming you are using <code>InternalResourceViewResolver</code>):

<pre><code>&lt;bean id="properties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"&gt;
 &lt;property name="locations"&gt;
 &lt;list&gt;&lt;value&gt;classpath:config.properties&lt;/value&gt;&lt;/list&gt;
 &lt;/property&gt;
&lt;/bean&gt;

&lt;bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"&gt;
 &lt;property name="prefix" value="/WEB-INF/views/"/&gt;
 &lt;property name="suffix" value=".jsp"/&gt;
 &lt;property name="exposedContextBeanNames"&gt;
 &lt;list&gt;&lt;value&gt;properties&lt;/value&gt;&lt;/list&gt;
 &lt;/property&gt;
&lt;/bean&gt;
</code></pre>

Then, in your JSP, you can use <code>${properties.myProperty}</code> or <code>${properties['my.property']}</code>.

blocks|key|1118485|text|要使用列表中可能不存在的多个位置，可以使用context:property-placeholder+bean：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1118486|<beans:bean+id="appProperties"+class="org.springframework.beans.factory.config.PropertiesFactoryBean">
++++<beans:property+name="ignoreResourceNotFound"+value="true"+/>
++++<beans:property+name="locations">
++++++++<beans:list>
++++++++++++<beans:value>classpath:application.properties</beans:value>
++++++++++++<beans:value>classpath:environment.properties</beans:value>
++++++++++++<beans:value>classpath:environment-${env}.properties</beans:value>
++++++++</beans:list>
++++</beans:property>
</beans:bean>|code-block|syntax|javascript|1118487|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

To use with multiple locations in a list which might not be present as can be done with the context:property-placeholder bean: 

<pre><code>&lt;beans:bean id="appProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"&gt;
 &lt;beans:property name="ignoreResourceNotFound" value="true" /&gt;
 &lt;beans:property name="locations"&gt;
 &lt;beans:list&gt;
 &lt;beans:value&gt;classpath:application.properties&lt;/beans:value&gt;
 &lt;beans:value&gt;classpath:environment.properties&lt;/beans:value&gt;
 &lt;beans:value&gt;classpath:environment-${env}.properties&lt;/beans:value&gt;
 &lt;/beans:list&gt;
 &lt;/beans:property&gt;
&lt;/beans:bean&gt;
</code></pre>

blocks|key|1118531|text|要在视图中使用递归属性占位符扩展，您需要一个不同的解决方案，请看下面的答案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1118532|https://stackoverflow.com/a/10200249/770303|offset|length|1118533|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|17|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

To use recursive property placeholder expansion in views, you need a different solution, take a look at this answer:

<a href="https://stackoverflow.com/a/10200249/770303">https://stackoverflow.com/a/10200249/770303</a>

blocks|key|903868|text|在Spring3.1之后，您可以使用带有SpEL的<spring:eval+/>标签，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|903869|<spring:eval+expression="@applicationProps['application.version']"+
+++++++++++++var="applicationVersion"/>|code-block|syntax|javascript|903870|entityMap|0|LINK|mutability|MUTABLE|url|http://static.springsource.org/spring/docs/3.1.0.RELEASE/reference/htmlsingle/#mvc-config-static-resources^0|P|F|K|4|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

After Spring 3.1, you can use <code>&lt;spring:eval /&gt;</code> tag with <a href="http://static.springsource.org/spring/docs/3.1.0.RELEASE/reference/htmlsingle/#mvc-config-static-resources">SpEL</a> like this:

<pre><code>&lt;spring:eval expression="@applicationProps['application.version']" 
 var="applicationVersion"/&gt;
</code></pre>

blocks|key|1118703|text|这将向您显示当前模式(您已登录)的表：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1118704|select+table_name+from+user_tables+order+by+table_name;|code-block|syntax|javascript|1118705|这将显示您至少具有select权限的架构表：|1118706|select+owner,+table_name+from+all_tables+where+owner='<owner>'+order+by+owner,+table_name;|1118707|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|$]]

This will show you the tables of the current schema (which you are logged in): 

<pre><code>select table_name from user_tables order by table_name;
</code></pre>

This will show you the tables of schema , for which you have select rights at least: 

<pre><code>select owner, table_name from all_tables where owner='&lt;owner&gt;' order by owner, table_name;
</code></pre>

In my application context I have defined properties file:

<pre><code>&lt;context:property-placeholder location="classpath:application.properties" /&gt;
</code></pre>

I want to get value of the property defined in that file on JSP page. Is there a way to do that in the way 

<pre><code>${something.myProperty}?
</code></pre>

How to use property from property file specified in PropertyPlaceholderConfigurer in JSP

在我的应用程序上下文中，我定义了属性文件：<context:property-placeholder location="classpath:application.properties" />我想在JSP页面上获取该文件中定义的属性的值。有没有办法做到这一点？${something.myProperty}?

问如何在JSP中使用PropertyPlaceholderConfigurer中指定属性文件中的属性
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