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swathiv54399501
New Participant
January 20, 2016
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unable to access JSONObject in sightly html file

  • January 20, 2016
  • 17 replies
  • 11668 views

Hi,

I am trying to access JSONObject  in sightly html,but the data is not displayed.

Below is the sightly java file,where "result" variable is holding JSON string.

public class TestSightly extends WCMUse {

   public String result;
   public JSONObject jsonObject;   
    
    @Override
    public void activate() throws Exception {
        TestLocation testLocation = new TestLocation();
        result = testLocation.testMessage();
        jsonObject = new JSONObject(result);
        
    }

     public String getResult(){
        return result;
    }
    
    public JSONObject getJsonObject(){
        return jsonObject; 
    }
       
}

HTML File:

<div data-sly-include="/libs/wcm/core/components/init/init.jsp"></div>

<div data-sly-use.model="${'com.test.core.models.TestSightly'}">
 <div>${model.result}</div>
 <div>${model.jsonObject}</div>

</div>

 

With the above "model.result" is displaying the string data(json formatted data),but "model.jsonObject" is displaying nothing.

 

Thanks & Regards

swati

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    Best answer by swathiv54399501

    Issue fixed.Found alternate way.

    Instead of using org.apache.sling.commons.json.JSONObject API, I changed to GSON api and converted json to javabean object and then accessing in sightly file.

    But using JSONObject in sightly is still not possible.

    swati

    17 replies

    Show previous replies
    S
    swathiv54399501Author
    New Participant
    January 20, 2016

    I am using JSONObject with string as parameter to construct JSONObject.As I mentioned before I am getting the json string from infinity.json(from jcr nodes). Below is the sample json string which I am converting to JSONObject,

     

    {  
       "jcr:primaryType":"nt:unstructured",
       "testkey1":{  
          "jcr:primaryType":"nt:unstructured",
          "test1":"al",
          "test2":"Alabama",
          "test3":"US"
          
          
       },
       "testkey2":{  
          "jcr:primaryType":"nt:unstructured"
       }
    }
     

    Thanks,

    Swati

    GK-007
    GK-007
    New Participant
    January 20, 2016

    In which format this "result" string is constructed and passed to JSONObject??

    Below is the javadoc details of JSONObject(String).Please refer.

    JSONObject

    public JSONObject(String string) throws JSONException
    Construct a JSONObject from a string. This is the most commonly used JSONObject constructor.

    string - A string beginning with { (left brace) and ending with } (right brace).

    Throws:

    JSONException - If there is a syntax error in the source string.
    S
    swathiv54399501Author
    New Participant
    January 20, 2016

    result is string and it is in json format.Once I get it the result, I am converting it into JSONObject.

    As you suggested, I changed it to JSONArray but no luck.

    JSONArray jsonArray = new JSONArray(result);

    Jitendra_S_Toma
    Jitendra_S_Toma
    New Participant
    January 20, 2016

    I suspect that result string is not a jsonObject. it is a jsonArray. Would you mind returning jsonArray than JSONObject?.

    Jitendra

      S
      swathiv54399501Author
      New Participant
      January 20, 2016

      No errors in the error log and even json is correct as I am getting the json of jcr node with infinity.json,so I dont think there will be errors in the json.

      I am able to parse the individual keys of json string in sightly java file and print the values like below,

      String posts = json.getJSONObject("testkey1");
       String  test = posts.getString("testkey2");

      But unable to access direct JSONObject.

      I am trying to avoid parsing keys and values of json in java file (because if I do it ,I have to hardcode keys of json in java file)

      Jitendra_S_Toma
      Jitendra_S_Toma
      New Participant
      January 20, 2016

      Just validate result string whether it is correct json or not. And, if there is any invalid json exception, you will have some error message in error.log

      Jitendra

        GK-007
        GK-007
        New Participant
        January 20, 2016

        Are you seeing any error in error.log when this expression is eveluating??

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