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How to show values from property file in JSP in a spring MVC app

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孤街浪徒
孤街浪徒 2020-12-04 20:14

I\'m setting my properties in app-servlet.xml with a bean like this:
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  • 悲哀的现实
    2020-12-04 20:38

    What you can also do that doesn't tie you to looking up properties in a single property placeholder, or if you are using java config and just instantiating a PropertySourcesPlaceholderConfigurer is use the environment object:

    <spring:eval expression="@environment.getProperty('application_builtBy')" />
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  • 甜味超标
    2020-12-04 20:58

    In context just do this:

    <util:properties 
    id="propertyConfigurer"
    location="classpath:yourPropertyFileClasspathHere"
/>
<context:property-placeholder properties-ref="propertyConfigurer" />

    for creating Properties bean(same as @nkjava.blogspot.com in his answer). But this is not all work need todo.

    Now you need to expose this bean to JSP. There are few way to do this, depends on type of view resolver. There is solution for InternalResourceViewResolver - you need to set "exposeContextBeansAsAttributes" to true and populate "exposedContextBeanNames" with list of required beans.

    For tiles also are solution.

    Than you can simply use this bean in your JSP. Via EL for example:

    ${propertyConfigurer['my.string.from.prop.file']}
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  • 隐瞒了意图╮
    2020-12-04 20:59 
    <bean class="org.springframework.context.support.ReloadableResourceBundleMessageSource" 
    id="messageSource"
    p:basenames="WEB-INF/i18n/site"
    p:fallbackToSystemLocale="false"/>

    Now this is your Properties File

    site.name=Cool Bananas

    And here goes your JSP

    <%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
<html>
  <head>
    <title><spring:message code="site.name"/></title>
  </head>
  <body>
  </body>
</html>
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  • 陌清茗
    2020-12-04 20:59

    in Spring version 4, you find the property file :

    1) xml mode

                    <bean class="org.springframework.context.support.PropertySourcesPlaceholderConfigurer">
                   <property name="ignoreUnresolvablePlaceholders" value="true"/>
                      <property name="locations">
                          <list>
                            <!-- default resources folder (default package maven project) -->
                             <value>classpath:mongodb.remote.properties</value>  
                                <!-- Or in /WEB-INF/ folder -->
                              <value>/WEB-INF/mongodb.remote.properties</value>  
                          </list>
                      </property>
                  </bean>
----------------------------------------------------------------------------------------

    2) programmatic mode:

        If you have for example this package : com.profile.config, com.profile.controller, ecc.. 
    it's not problem if you put only com.profile, it's ok !!! Now


    @Configuration
    @ComponentScan(basePackages = "com.profile")
    /** resources folder & default package maven project*/
    @PropertySource(value = { "classpath:mongodb.remote.properties" }) 
    public class MyPropertySourcesPlaceholderConfigurer {


        @Bean
        public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
            return new PropertySourcesPlaceholderConfigurer();
        }
    }


    ---------------------------------------------------------------------------------
    Your property file

    label.test.val=this is the property file value!!!!!
    ---------------------------------------------------------------------------------

    @Controller
    public class LabelsAndValuesController {


         @Value("${label.test.val}")
         String test;

    }

    output:

        ---------------------------------------------------------------------------------
    this is the property file value!!!!!
    ---------------------------------------------------------------------------------
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  • 野的像风
    2020-12-04 21:00

    Spring config

    <util:properties id="propertyConfigurer" 
                  location="classpath:yourPropertyFileClasspathHere "/>
<context:property-placeholder properties-ref="propertyConfigurer" />

    jsp

    <spring:eval expression="@propertyConfigurer.getProperty('propertyNameHere')" />
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