[jira] [Created] (FREEMARKER-221) version 2.3.32 RequestParameters has bug?

["startjava (Jira)" <ji...@apache.org>]

startjava created FREEMARKER-221:
------------------------------------

             Summary: version 2.3.32 RequestParameters has bug?
                 Key: FREEMARKER-221
                 URL: https://issues.apache.org/jira/browse/FREEMARKER-221
             Project: Apache Freemarker
          Issue Type: Bug
            Reporter: startjava


use url：
[http://localhost:8080/test20?selectedValue=d]

 

template code：
<select>
  <#if  listString?? && listString?size!=0>
    <#list listString as list>
      <#if RequestParameters['selectedValue']==list>
        <option value="${list}" selected="selected">${list}</option>
      </#if>
      <#if RequestParameters['selectedValue']!=list>
          <option value="${list}">${list}</option>
      </#if>
    </#list>
  </#if>
<select>

controller code：

@RequestMapping("test20")
    public String test20(Model model,HttpServletRequest request,HttpServletResponse response){
        List listString=new ArrayList();
        listString.add("a");
        listString.add("b");
        listString.add("c");
        listString.add("d");
        listString.add("e");
        request.setAttribute("listString",listString);

        return "test20";
    }

 

run result ：


freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:
==> RequestParameters  [in template "test20.ftlh" at line 12, column 12]

----
Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----

----
FTL stack trace ("~" means nesting-related):
    - Failed at: #if RequestParameters.selectedValue =...  

[in template "test20.ftlh" at line 12, column 7]

 

but use 2.3.31 no exception !

 

 

 

 

 

 

 



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