java API handle form submit as json content type

thinhnk — Mon, 11 Mar 2013 05:23:04 GMT

Hi friends,I have a form:<div id="${el}-body" class="password"> <form id="${el}-form" action="${url.context}/service/formhandle" method="post"> <div class="header-bar">${msg("label.title")}</div> <div class="row"> <span class="label"><lab

Re: java API handle form submit as json content type

muralidharand — Mon, 11 Mar 2013 05:41:00 GMT

Hi,
In HTTP Post, the post data will be in the body and it will not present in the URL.
So, req.getParameterNames will be null and you've to use req.getContent to get the data and convert them into JSON.

http://www.springsurf.org/sites/1.0.0.M3/spring-webscripts/spring-webscripts/apidocs/org/springframework/extensions/webscripts/WebScriptRequest.html#getParameterNames()

Can you please try the below one ?



 @Override
   protected Map<String, Object> executeImpl(WebScriptRequest req, Status status, Cache cache) 
   {

      Map<String,Object> model = new HashMap<String, Object>();
      Content c = req.getContent();
      if (c == null)
      {
          throw new WebScriptException(Status.STATUS_BAD_REQUEST, "Missing POST body.");
      }
      

      // Process the JSON       
      JSONParser parser = new JSONParser();
      JSONObject json = null;
      try
      {
         Reader reader = req.getContent().getReader();
         Object jsonO = null;
         if (reader.ready())
         {
            jsonO = parser.parse(req.getContent().getReader());
         }
          
          if (jsonO instanceof JSONObject && jsonO != null)
          {
              json = (JSONObject)jsonO;
          }
          else
          {
              throw new WebScriptException(Status.STATUS_BAD_REQUEST, "Wrong JSON type found " + jsonO);
          }
      }
      catch(ParseException pe)
      {
          throw new WebScriptException(Status.STATUS_BAD_REQUEST, "Invalid JSON data received", pe);
      }
      catch(IOException ioe)
      {
          throw new WebScriptException(Status.STATUS_BAD_REQUEST, "Error while reading JSON data", ioe);
      }
///…………………… Your code goes here …………………….
}

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Re: java API handle form submit as json content type

thinhnk — Tue, 12 Mar 2013 17:26:00 GMT

Hi Murali,
Thank you very much.
Based on you help, now I can solve the problem. WebScriptRequest also provides method parseContent() to parse body it as a object. I can downcast it to json object.


        JSONObject json = null;
   Object jsonO = req.parseContent();
   if (jsonO instanceof JSONObject && jsonO != null)
   {
      json = (JSONObject)jsonO;
   }
‍‍‍‍‍‍‍‍

And it works.

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java API handle form submit as json content type

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