I have developed a native client interface which calls struts2 JSON RPC using
post method. I have set content type, content length as suggested in the
spec. The request body looks like as follows :
{"method": "uploadTxpAssignment","id": "txpUploadRequest",
"params":{"addressByDestAddrId":{"addrLine1":"test home","addrLine2":"7th
ave","addressId":2,"aptRoomNo":5,"city":"queens","phone":"435-577-4567","state":"NY","zipCode":10183},"atDestTime":null,"callRcvdTime":"2009-11-26T08:01:00","comments":"comments1","dateCreated":"2009-11-26T00:00:00","dateModified":null,"user":{"dateCreated":null,"dateModified":null,"dob":"1956-09-18T00:00:00","firstName":"passfname","gender":"Male","lastName":"patient1lname","mi":null,"ssn":null,"userId":10000}}}
The struts.xml configurations are :
<action name="UploadAction" class="com.actions.upload.UploadAction"
method="smd">
<interceptor-ref name="json">
true
false
</interceptor-ref>
<result type="json">
true
false
text/plain
1024
false
UTF-8
</result>
</action>
The simple action code body :
public class UploadCallreportAction {
private TransportAssignmentVO transport;
/**
* @return the transport
*/
public TransportAssignmentVO getTransport() {
return transport;
}
/**
* @param transport the transport to set
*/
public void setTransport(TransportAssignmentVO transport) {
this.transport = transport;
}
public String smd() {
return Action.SUCCESS;
}
@SMDMethod
public void uploadTxpAssignment(TransportAssignmentVO txpVO) {
setTransport(txpVO);
System.out.println("The Tansport assignment is for Run #:"+
transport.getRunNumber());
}
}
When I run the client the call reaches the server and returns me an
exception :
:35,013 ERROR [RPCError] java.util.HashMap cannot be cast to java.util.List
java.lang.ClassCastException: java.util.HashMap cannot be cast to
java.util.List
at
org.apache.struts2.json.JSONInterceptor.invoke(JSONInterceptor.java:204)
at
org.apache.struts2.json.JSONInterceptor.intercept(JSONInterceptor.java:131)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
at
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
at
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)
at
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
I am also using Spring 2.5 and Hibernate JPA in the same app.... Not sure if
there is any conflict.I have followed the simple rules to set up the JSON
RPC.However I am not able to resolve the problem. Please let me know if
anyone has a solution for this.
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