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From "CRANFORD, CHRIS" <Chris.Cranf...@setech.com>
Subject JSON Result Behavior with Struts 2.2.3
Date Wed, 01 Jun 2011 16:13:32 GMT
I recently upgraded to Struts 2.2.3 and noticing that result types of
JSON are not behaving the same way as they did before.  For example, the
following action is setup:

--- Action Class ---

package com.setech.dw.repair.web.ajax;

public class StatusAction implements ActionSupport 
{
  private Map<String,String> list = new LinkedHashMap<String,String>();
  private String type;
  @Autowired
  private IRepairService service;

  public void setType(String type) {
    this.type = type;
  }

  public Map<String,String> getList() {
    return list;
  }

  public String execute() 
  throws Exception {
    List<StatusCode> statuses = service.getStatusCodesByType(type);
    for(StatusCode statusCode : statuses) 
 
list.put(statusCode.getCode(),getText("repair.status."+statusCode.getCod
e().toLowerCase()));

    return SUCCESS;
  }
}

--- Struts Action Mapping ---

<action name="statusSelectList"
class="com.setech.dw.repair.web.ajax.StatusAction">
  <result name="success" type="json"/>
</action>

In the JSP; it is expecting to find variable "list" on the top of the
OGNL value stack which would be the action invoked.  This worked fine
when I was using 2.1.8.1; however after upgrading to 2.2.3; I am finding
that the JSON response only contains the following:

[org.apache.struts2.json.JSONUtil]:
[JSON]{"com.opensymphony.xwork2.util.OgnlValueStack.MAP_IDENTIFIER_KEY":
""}

Was there some fundamental change that I have overlooked?

Chris


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