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Struts2 Select tag

ravi kanth
Ranch Hand

Joined: Jun 04, 2008
Posts: 36
<s:select list="">
Hi all,
Can you find a solution for this small problem.
I am developing an application using struts2 with all static data, for a prototype.I am not using any action classes at all.I developed this using Html but the same i want to do with struts2.
I am getting below exception when i am using <s:select cssClass="field" cssStyle="WIDTH:100px"
name="ERA1" id="ERA1" headerValue="S&P" list="{'Select','S&P','Moody's','Fitch','Others'}">

Is there any possibilty that i can do with static data.Please help me.


E [Servlet Error]-[/GM_GroupDetails.jsp]: tag 'select', field 'list', id 'ERA1', name 'ERA1': The requested list key '{'Select','S&P','Moody's','Fitch','Others'}' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unknown location]
at org.apache.struts2.components.Component.fieldError(Component.java:231)
at org.apache.struts2.components.Component.findValue(Component.java:293)
at org.apache.struts2.components.ListUIBean.evaluateExtraParams(ListUIBean.java:79)
at org.apache.struts2.components.Select.evaluateExtraParams(Select.java:99)
at org.apache.struts2.components.UIBean.evaluateParams(UIBean.java:780)
at org.apache.struts2.components.UIBean.end(UIBean.java:481)
at org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:43)
at com.ibm._jsp._GM_5F_GroupDetails._jspx_meth_s_select_4(_GM_5F_GroupDetails.java:680)
at com.ibm._jsp._GM_5F_GroupDetails._jspService(_GM_5F_GroupDetails.java:169)
at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:85)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:966)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:907)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:145)
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:413)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:701)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:646)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:475)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463)
at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:115)
at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:168)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:92)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:744)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1433)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:93)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:394)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:152)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:213)
at com.ibm.io.async.AbstractAsyncFuture.fireCompletionActions(AbstractAsyncFuture.java:195)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:194)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:741)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:863)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510)

Thanks&Regards,
tvnrrk.
David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

Is this really your code, or is it a typo?That shouldn't even compile. Judging from the error message I'll assume you just typed it in wrong.

That aside: take a close look at the values you're using in your list, paying particular attention to punctuation.

I'm also not sure that the "headerValue" attribute is going to do what you think it is; IIRC you need both headerKey and headerValue for it to work, but that would also give you multiple "S&P" values in the dropdown, which looks funny. If you want S&P to be pre-selected use the "value" attribute.

Lastly, if the intent with the 'Select' option is to present a command it might be easier to use headerKey/headerValue to include "-- Select --" as the value and an empty string as the key, making validation somewhat easier.
 
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subject: Struts2 Select tag