Java Technical: Displaytags1.2 integration with spring

Below is an example to implement display tag in jsp.

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<%@ taglib uri="http://displaytag.sf.net" prefix="display"%>

<html>

<head>

<title>All Cartoon</title>

</head>

<body>

<form method="post" action="<%=request.getContextPath() %>/publishCartoon.html">

<display:table uid="cartoon" export="true"

name="sessionScope.cartoonList" defaultsort="1"

defaultorder="ascending" pagesize="3"

requestURI="/prePublishCartoon.html">

<display:setProperty name="export.pdf" value="true" />

<display:caption>Cartoon Details</display:caption>

<display:column title="ID">

<input type="radio" name="id"

value="<c:out value="${cartoon.id}"/>"

<c:if test="${param.id == test.id and param.method != 'Save'}"></c:if>

style="margin: 0 0 0 4px" onclick="radio(this)" />

</display:column>

<display:column property="image_Name" title="Image Name" />

<display:column property="published" title="Published(Y/N)" />

<display:column property="publishDate" title="Published Date"

sortable="true" />

<display:column property="upload_Date" title="Upload Date"

sortable="true" />

<display:column property="user.fname" title="Artist" />

<display:column title="Cartoon" autolink="true">

<img src="<%=request.getContextPath() %>${cartoon.file_path}"

alt="image" height="145" width="145" />

</display:column>

</display:table>

<div>

</div>

</form>

</body>

</html>

Including the taglib is very important in the jsp. Without which the display tag wont work.
before redirecting your application to the above jsp it is mandatory to keep your list ready and pass to the jsp. You can pass the list via

pageScope
requestScope (default)
sessionScope
applicationScope

In the above example i have used sessionScope.

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To enable the export functionality add export="true" inside the tag <display:table>. Also create one property file named displaytag.properties and put the below content.

displaytag.properties

sort.amount=list

paging.banner.placement=top

export.types=csv excel xml pdf rtf

export.excel=true

export.csv=true

export.xml=true

export.pdf=true

export.rtf=true

export.excel.class=org.displaytag.export.excel.DefaultHssfExportView

export.pdf.class=org.displaytag.export.DefaultPdfExportView

export.rtf.class=org.displaytag.export.DefaultRtfExportView

export.excel.filename=Cartoon.xls

export.pdf.filename=Cartoon.pdf

export.xml.filename=Cartoon.xml

export.csv.filename=Cartoon.csv

export.rtf.filename=Cartoon.rtf

Error
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SEVERE: Servlet.service() for servlet jsp threw exception

java.lang.ClassNotFoundException: org.apache.commons.lang.UnhandledException

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688)

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1533)

at java.lang.Class.getDeclaredConstructors0(Native Method)

at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)

at java.lang.Class.getConstructor0(Class.java:2699)

at java.lang.Class.newInstance0(Class.java:326)

at java.lang.Class.newInstance(Class.java:308)

at java.beans.Introspector.instantiate(Introspector.java:1449)

at java.beans.Introspector.findExplicitBeanInfo(Introspector.java:431)

at java.beans.Introspector.<init>(Introspector.java:380)

at java.beans.Introspector.getBeanInfo(Introspector.java:167)

at org.apache.jasper.compiler.Generator$TagHandlerInfo.<init>(Generator.java:3944)

at org.apache.jasper.compiler.Generator$GenerateVisitor.getTagHandlerInfo(Generator.java:2212)

at org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1640)

at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1539)

at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)

at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)

at org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1770)

at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1539)

at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)

at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)

at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)

at org.apache.jasper.compiler.Node$Root.accept(Node.java:475)

at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)

at org.apache.jasper.compiler.Generator.generate(Generator.java:3490)

at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:250)

at org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)

at org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)

at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)

at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.sitemesh.webapp.contentfilter.ContentBufferingFilter.doFilter(ContentBufferingFilter.java:112)

at org.sitemesh.config.ConfigurableSiteMeshFilter.doFilter(ConfigurableSiteMeshFilter.java:163)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)

at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:240)

at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:258)

at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1174)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:901)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.sitemesh.webapp.contentfilter.ContentBufferingFilter.bufferAndPostProcess(ContentBufferingFilter.java:169)

at org.sitemesh.webapp.contentfilter.ContentBufferingFilter.doFilter(ContentBufferingFilter.java:126)

at org.sitemesh.config.ConfigurableSiteMeshFilter.doFilter(ConfigurableSiteMeshFilter.java:163)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:680)

Apr 19, 2012 5:56:31 PM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet [captionContest] in context with path [/CaptionContest] threw exception [java.lang.NoClassDefFoundError: org/apache/commons/lang/UnhandledException] with root cause