Spring Web MVC - Spring Web Flow Working With JasperReports

Step 6: Other Beans Configuration

For this example we must configure the view resolver, url mapping, and some Web MVC beans. For that we must use springjasperreports-servlet.xml

<beans>

	<bean id="viewResolver"
	    class="org.springframework.web.servlet.view.ResourceBundleViewResolver">
	    <property name="basename" value="views"/>			
	</bean>
	
	<bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
		<property name="cacheSeconds" value="5"/>		
		<property name="basename" value="/WEB-INF/interproperties/messages"/>	
	</bean>  	
     
    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
    	         <prop key="/welcome.htm">idWelcomeController</prop>
    	         <prop key="/prereportsimplejasperreport.htm">idPreReportSimpleJasperReportController</prop>
    	         <prop key="/reportsimplepdfjasperreport.htm">idReportSimplePdfJasperReportController</prop>
    	         <prop key="/springwebflowjasperreports.htm">idSpringWebFlowJasperReportsFlowController</prop>
    	    </props>
    	</property>
    </bean>	

	<bean id="idWelcomeController"
	      class="com.springjasperreports.controler.mvc.welcome.WelcomeController" />
    
    <bean id="idPreReportSimpleJasperReportController"
	      class="com.springjasperreports.controler.mvc.jasperreports.PreReportSimpleJasperReportController" />
    
    
</beans>

The bean declarations are clear by themselves. You should notice the two last beans idWelcomeController and idPreReportSimpleJasperReportController. They are two simple controllers that extend the super class AbstractController, both used for forward purposes.

Step 7: views.properties

All our views (jsp/pdf) must be configured in views.properties, for this, see below

welcome.(class) = org.springframework.web.servlet.view.JstlView
welcome.url = /WEB-INF/jsp/inicio.jsp

prereportsimplejasperreport.(class) = org.springframework.web.servlet.view.JstlView
prereportsimplejasperreport.url = /WEB-INF/jsp/mvc/reportSimpleJasperReport.jsp

springwebflowjasperreports-stepone.(class) = org.springframework.web.servlet.view.JstlView
springwebflowjasperreports-stepone.url = /WEB-INF/jsp/flow/swfjr-stepone.jsp

springwebflowjasperreports-steptwo.(class) = org.springframework.web.servlet.view.JstlView
springwebflowjasperreports-steptwo.url = /WEB-INF/jsp/flow/swfjr-steptwo.jsp

reportsimplepdfjasperreport.(class) = org.springframework.web.servlet.view.jasperreports.JasperReportsPdfView
reportsimplepdfjasperreport.reportDataKey = datasource
reportsimplepdfjasperreport.url = /WEB-INF/reports/SpringJasperReportsspring.jasper

The most important part is for the Pdf View used by:

• ReportSimplePdfJasperReportController class
• springwebflowjasperreports-printpdf view-state

• The first our spring package to generate the pdf view
  
• The second and in some way the trick part related with the jRBeanCollectionDataSource, the content of our report. If you see your Controller/Action classes the keyword datasource is used in both to assign the report:
  • parameterMap.put("datasource", jRBeanCollectionDataSource); in ReportSimplePdfJasperReportController class
  • context.getRequestScope().put("datasource", jRBeanCollectionDataSource); in ReportSimplePdfJasperReportAction class
  However "datasource" is sent to the SpringJasperReportsspring.jasper file.
  
• The third part is the location of our SpringJasperReportsspring.jasper