Spring webflow view resolver config: subfolders for JSP Files - spring

Using Spring webflow and in the serlvet-configuration I have this for JSP files:
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
and this for flow XML files:
<webflow:flow-registry id="flowRegistry"
flow-builder-services="flowBuilderServices">
<webflow:flow-location-pattern value="/WEB-INF/flows/**/*-flow.xml" />
</webflow:flow-registry>
Due to the /**/, any flow XML file in may they be in sub directory or not is resolved automatically so I need not specify the subfolder in the flow definition.
For JSP ** does seem not work.
Is there a way to do the same? I'd like to use subdirectories, because it makes it look cleaner when don't have to scroll through a heap of JSP files in the package explorer. On the other hand, If I have to specify the subdirectory each time, it's probably prone to getting typos not being detected

I don't think there is a way to specify ant style wildcard in 'prefix' or 'suffix' attribute.
As you said, you can specify the path in the flow definition as below
<view-state id="showSearchCriteria" view="customer/search">
<transition on="lookupCriteriaEntered" to="searchCustomer" />
</view-state>

Though not an elegant solution but you can try jsps in multiple subfolders of jsp folder using tiles as:
<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.tiles2.TilesView"/>
</bean>
<bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
<property name="definitions">
<list>
<value>/WEB-INF/tilesDef.xml</value>
</list>
</property>
</bean>
Define your tilesDef.xml as:
<tiles-definitions>
<definition name="page1" template="/WEB-INF/jsp/subFolder1/page1.jsp"/>
<definition name="page2" template="/WEB-INF/jsp/subFolder2/page2.jsp"/>
</tiles-definitions>
In your controller return as:
new ModelAndView("page1");
or as:
new ModelAndView("page2");
But the drawback of this would be that you cannot have 2 jsps with same name in different folders as the definition name is unique.

Related

How do I automatically reload my properties in my Spring XML appilcation context?

I’m using Spring 3.2.11.RELEASE. I currently have the following set up in my application context file for the purposes of loading a cron trigger based off a schedule defined in a properties file (the property = cron.schedule) …
<bean id="localPropertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
<value>classpath:application.properties</value>
</property>
</bean>
…
<bean id="updateResourcesJob" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject" ref="myService" />
<property name="targetMethod" value="myMethod" />
<property name="concurrent" value="true" />
</bean>
<bean id="updateResourcesCronTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean">
<property name="jobDetail" ref="myJob" />
<property name="cronExpression" value="${cron.schedule}" />
</bean>
My question is, I would like to create an XML configuration in my context file that allows me to edit my properties file and have everything automatically reloaded without having to restart my server or re-deploy my application. I have read several places about Apache Commons Configuration, but I can’t figure out how to take the above and rewrite an XML config that would utilize the configuration.
Thanks for any help, - Dave

How to internationalize REST Spring-MVC application?

I am new with spring and I still don't know well about hierarchy and terminology of spring. I am implementing a RESTful app with spring. After searching and reading about how to internationalize spring, I tried to do it in my app. But it seems to me it is not configured properly. Because I get exception. I would like to show you the screenshot of my project structure. And I would like to ask you why my applicationContext.xml show a problem exist.
spring-servlet.xml
<!-- SPRING INTERNALIZATION CONFIGURATION -->
<bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:messages" />
<property name="defaultEncoding" value="UTF-8"/>
</bean>
<bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
<property name="defaultLocale" value="en"/>
</bean>
<bean id="localeChangeInterceptor" class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
<property name="paramName" value="language" />
</bean>
<bean id="handlerMapping" class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="interceptors">
<ref bean="localeChangeInterceptor" />
</property>
</bean>
The javadoc of ReloadableResourceBundleMessageSource.setBaseNames() says:
Set an array of basenames, each following the basic ResourceBundle convention of not specifying file extension or language codes, but in contrast to ResourceBundleMessageSource referring to a Spring resource location: e.g. "WEB-INF/messages" for "WEB-INF/messages.properties", "WEB-INF/messages_en.properties", etc.
But you've placed your message properties files under src/main/resources in the Maven project structure, so they will end up at the root of the classpath instead (which means that even if Spring looked for them in the classpath, the /resources prefix you've used in the configuration would prevent Spring to find them).
So place the properties file under WEB-INF, and use WEB-INF/messages as the basenames property.

Several PropertyPlaceholderConfigurers with spring

I have a strange problem with my spring bean definition. My application is a multi-module thing.
At the moment I have a project named core-lib which has a spring.xml file defining a PropertyPlaceholderConfigurer like this:
<bean id="corePropertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="order" value="10" />
<property name="locations">
<list>
<!-- default properties files containing ALL possible properties -->
<value>classpath:default.connection.properties</value>
<value>classpath:default.mq.properties</value>
<!-- installation specific, optional properties file containing overridden properties -->
<value>classpath:connection.properties</value>
<value>classpath:mq.properties</value>
</list>
</property>
<property name="ignoreResourceNotFound" value="true" />
</bean>
Second I have a depending project which has its own spring.xml file including the one from the core-lib project. Moreover it defines a second PropertyPlaceholderConfigurer like this:
<!-- import configuration from service layer -->
<import resource="classpath:spring.xml"/>
<bean id="commPropertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="order" value="20" />
<property name="locations">
<list>
<!-- properties files containing ALL possible properties -->
<value>classpath:processing.properties</value>
</list>
</property>
<property name="ignoreResourceNotFound" value="true" />
</bean>
Now I have the behavior that a bean defined in this second spring PlaceholderConfigurer can't be instantiated due to missing properties:
BeanDefinitionStoreException: Invalid bean definition with name 'commServer' defined in class path resource [comm-server.spring.xml]: Could not resolve placeholder 'comm.server.CommServer.port'
If I set a breakpoint in the PropertyPlaceholderConfigurer class it only get's triggered for the first bean instance and never for the second. Has anyone had a similar setup and can give me some advice?
Thanks,
Sebastian
There is a more comfortable way by defining a new placeholder prefix and suffix:
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
<value>classpath:configuration.properties</value>
</property>
<property name="placeholderPrefix" value="myprefix{" />
<property name="placeholderSuffix" value="}" />
</bean>
Found here: http://javalibs.blogspot.co.at/2008/04/java-spring-framework-multiple.html
OK I resolved that myself, although I do not understand why this is working so strange.
I have defined a different prefix in the second placeholder (?{ instead of ${) and now its working. I had expected that this would work without any special prefixes...

deployment for different environments with maven and spring

I've got two properties files:
environment.properties:
- project.host.db3.database.name=oracle
application.properties:
- database.name=${project.host.db3.database.name}
The first one represents the environment variables and the second one the properties to be used in a spring project, in this configuration i try to set the environment.properties but of course it doesn't work:
<bean id="systemPropertiesLoader"
class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetObject" value="#{#systemProperties}" />
<property name="targetMethod" value="putAll" />
<property name="arguments">
<util:properties location="classpath:environment.properties" />
</property>
</bean>
<bean id="propertyPlaceholderConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
depends-on="systemPropertiesLoader">
<property name="locations">
<list>
<value>classpath:application.properties</value>
</list>
</property>
<!-- bean using database.name -->
Is it doable?, and if not, how do people have agnostic properties in their projects (like database.name), and only one file (war, jar, etc.) to be deployed?
Well, it seems it's doable for beans xml defined as long as you define your properties it like this:
<bean id="propertyPlaceholderConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
depends-on="systemPropertiesLoader">
But if you ever try to access the properties from a servlet:
this.getClass().getClassLoader().getResourceAsStream("application.properties");
chances are you get this:
bad port configuration: ${project.host.db3.database.port}
java.lang.NumberFormatException: For input string: "${project.host.db3.database.port}"
In answer to yorkw, now i can have the same war to be deployed in several environments and configure the host with -Denvironment=development, so i can deploy a properties file for development, production, etc. and simply use:
<bean id="systemPropertiesLoader"
class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetObject" value="#{#systemProperties}" />
<property name="targetMethod" value="putAll" />
<property name="arguments">
<util:properties location="classpath:**${environment}/**environment.properties" />
</property>
</bean>
Otherwise i should have the application.properties substituted before deployment for every environment. I'm sure there are better solutions than this.

<jee:jndi-lookup default-value and the use of classpath

I am really stuck on this one... Help! :)
I am using j2ee:jndi lookup for a property file. The following works fine:
<bean class="org.springframework.core.io.FileSystemResource">
<constructor-arg>
<jee:jndi-lookup id="myProps" jndi-name="myProps" resource-ref="true" />
</constructor-arg>
</bean>
However, I want to handle the case where the jndi lookup fails but will fall back on a default file located in WEB-INF/classes folder. If I use the default-value as below, the webapp throws an exception complaining that it cannot find the file "classpath:myprops.properties"
<bean class="org.springframework.core.io.FileSystemResource">
<constructor-arg>
<jee:jndi-lookup id="myProps" jndi-name="myProps" resource-ref="true"
default-value="classpath:myprops.properties" />
</constructor-arg>
</bean>
However, if I hard-code a specific path for default-value, then it works fine, but that is unacceptable as a final solution.
Thus, my issue is how to use "classpath:" so that it gets properly resolved?
This is the overall usage I'm employing:
<bean id="authServerProperties"
class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="ignoreResourceNotFound" value="true"/>
<property name="location">
<bean class="org.springframework.core.io.FileSystemResource">
<constructor-arg>
<jee:jndi-lookup id="myProps" jndi-name="myProps" resource-ref="true"
default-value="classpath:myprops.properties" />
</constructor-arg>
</bean>
</property>
.....
</bean>
Let Spring use its built-in PropertyEditor support to decide on the type of resource, rather than supplying an explicit FileSystemResource bean as this won't work with classpath resources (it needs to be configured with a path on the file system). Instead you should use something like
<bean id="authServerProperties"
class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="ignoreResourceNotFound" value="true"/>
<property name="location" ref="myProps" />
</bean>
<jee:jndi-lookup id="myProps" jndi-name="myProps" resource-ref="true"
default-value="classpath:myprops.properties"/>
Here we are setting the location to be a string value and allowing Spring to convert that to the appropriate resource type, so if you have
<env-entry>
<env-entry-name>myProps</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>file:///Users/something/myProps.properties</env-entry-value>
</env-entry>
in your web.xml, it will use a UrlResource with the given file URL, otherwise it will create a ClasspathResource to look for the file myprops.properties.

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