Question

How do i rename a key in JSONObject

Asked by: Amos_Mike

i am trying to rename  "displayName" key to"text",

where key "dispalyname" is a part of JSONArray which is nested in JSONObject.

like:

{"jsonText":[

{"description":"Employee","displayName":"Guillaumin, Xavier","email":"xguillaumin@hersheys.com","location":"Carretera GDL-ElCastilloKM8.05","title":"Financial Coordinator Global Exports","userId":"HERXGG40"},

{"description":"Former Employee","displayName":"Lugo, Javier","email":"JLugo@Hersheys.com","location":"","title":"Special Projects Manager","userId":"HERJEL40"},

{"description":"Employee","displayName":"Plitnick, Xavier F","email":"HFXFP001@hersheys.com","location":"6 Scotch Pine Drive","title":"HZ_1526_Mst Wrap Mech","userId":"HFXFP001"}

]}


Can anyone suggest way to rename ?

JSONArray jsonArray = new JSONArray();
			JSONObject jsonObj = new JSONObject();
			try {
				Collection<User> user = UserManager.getInstance()
						.findUsersByName(name);
				
                               jsonArray.addAll(user);
 
				jsonObj.put("jsonText", jsonArray);
			} catch (Exception e) {
				e.printStackTrace();
			}
 
			String jsonString = jsonObj.toString();
			System.out.println(jsonString);

                                  
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Asked On
2009-07-09 at 13:00:08ID24558052
Tags

java

,

JSON

Topics

JSON

,

JavaScript

Participating Experts
1
Points
250
Comments
12

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Answers

 

by: mplungjanPosted on 2009-07-10 at 04:28:07ID: 24822103

Perhaps add the new key with the value and remove the old ?

 

by: mplungjanPosted on 2009-07-10 at 04:35:29ID: 24822150

In JS:


<script>
 jsonText = [ { "description" : "Employee",
        "displayName" : "Guillaumin, Xavier",
        "email" : "xguillaumin@hersheys.com",
        "location" : "Carretera GDL-ElCastilloKM8.05",
        "title" : "Financial Coordinator Global Exports",
        "userId" : "HERXGG40"
      },
      { "description" : "Former Employee",
        "displayName" : "Lugo, Javier",
        "email" : "JLugo@Hersheys.com",
        "location" : "",
        "title" : "Special Projects Manager",
        "userId" : "HERJEL40"
      },
      { "description" : "Employee",
        "displayName" : "Plitnick, Xavier F",
        "email" : "HFXFP001@hersheys.com",
        "location" : "6 Scotch Pine Drive",
        "title" : "HZ_1526_Mst Wrap Mech",
        "userId" : "HFXFP001"
      }
    ] 
jsonText[0].text=jsonText[0].displayName
delete jsonText[0].displayName;
    
alert(jsonText[0].text)    
alert(jsonText[0].displayName)    
</script>

                                              
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by: Amos_MikePosted on 2009-07-10 at 04:54:42ID: 24822271

mplugjan

"jsonText" is a part of JSON object, it's a key in Json Object. I am sorry,  I cudn't figure out what are you trying to convey?

 

by: mplungjanPosted on 2009-07-10 at 05:02:20ID: 24822328

trying to convey you probably need to copy the key and delete the old.

Anyway why do you want to rename?

 

by: Amos_MikePosted on 2009-07-10 at 06:38:06ID: 24823097

K got your point..
Thanks , but the change i am trying to do is on server side i.e.  in a servlet.
So i don't think this will help.

I am passing this JSON object to my javascript and there my jquery will read it for an JSONsuggest function.
my JS file for JSON suggest (plugin in jquery) expects the searchdata key to be "text", that's why i need to rename it from displayName to text

 

by: mplungjanPosted on 2009-07-10 at 10:46:53ID: 24825672

And not easier to change the JS?

 

by: Amos_MikePosted on 2009-07-10 at 10:59:52ID: 24825783

I know that could be the solution, but the thing is i am using that specific key from JS at other places in my application.
Moreover i was curious if there's a workaround, for what i have asked.

 

by: mplungjanPosted on 2009-07-10 at 11:57:18ID: 24826337

If it is not a huge amount of data, ADD the data to a new key

 

by: Amos_MikePosted on 2009-07-10 at 12:49:50ID: 24826823

i got the solution, i sat and applied my brain's deepest nerves to get it working in JAVA servlet itself.
I am calling this mapBeans fxn, and replacing my fields from JSONArray.
this fxn references the UserMappingBean which has getter and setter for Text field.
It works fine for me.
Thanks for the help.

private Collection<UserMappingBean> mapBeans(Collection<User> users) {
		List<UserMappingBean> beans = new LinkedList<UserMappingBean>();
		
		for (User user: users) {
			UserMappingBean b = new UserMappingBean();
			b.setText(user.getDisplayName());
			beans.add(b);
		}

                                              
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by: mplungjanPosted on 2009-07-10 at 22:08:46ID: 24829119

"If it is not a huge amount of data, ADD the data to a new key"

20120131-EE-VQP-002

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