Use "plainText" result for Ajax

[tomate_61 <to...@163.com>]

hi,
  I used Ajax in my .jsp page for getting "plainText" data from action.

  In my struts.xml, I config my action like this:
     <action name="myAction" class="com.myWeb.MyAction">
	<result type="plainText"></result>
     </action>

  My webApp works well when deployed in tomcat. But in "Eclipse->Run As->Run
On Server" model, I get some Exception like behind:
  SEVERE: Servlet.service() for servlet default threw exception
  java.lang.NullPointerException
	at java.io.Reader.<init>(Unknown Source)
	at java.io.InputStreamReader.<init>(Unknown Source)
	at
org.apache.struts2.dispatcher.PlainTextResult.doExecute(PlainTextResult.java:148)
	at
org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)
	at com.opensymphony.xwork2.DefaultActionInvocation...     ......

  For fixing this Exception, I create a total blank jsp page "blank.jsp" ,
and modify struts.xml:
     <action name="myAction" class="com.myWeb.MyAction">
	<result type="plainText">/blank.jsp</result>
     </action>

  I don't think this is a good way to solve problem. And is there some miss
in struts for supporting Ajax?

thx a lot
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