Add data to JSONObject

Question

I m trying to figure out how to add the following data to my json object  Could someone show me how to do this    Website Example    document  ready function           example   dataTable         aoColumnDefs             aDataSort     0  1     aTargets     0              aDataSort     1  0     aTargets     1              aDataSort     2  3  4     aTargets     2                        My JSONObject that needs to incorporate the above example        JSONObject json   new JSONObject        json put  aoColumnDefs

User · Answer

The answer is to use a JSONArray as well  and to dive  deep  into the tree structure   JSONArray arr   new JSONArray    arr put           a new JSONObject   arr put           a new JSONObject    JSONObject json   new JSONObject    json put   aoColumnDefs  arr

User · Answer

The accepted answer by Francisco Spaeth works and is easy to follow   However  I think that method of building JSON sucks   This was really driven home for me as I converted some Python to Java where I could use dictionaries and nested lists  etc  to build JSON with ridiculously greater ease   What I really don t like is having to instantiate separate objects  and generally even name them  to build up these nestings   If you have a lot of objects or data to deal with  or your use is more abstract  that is a real pain    I tried getting around some of that by attempting to clear and reuse temp json objects and lists  but that didn t work for me because all the puts and gets  etc  in these Java objects work by reference not value   So  I d end up with  JSON objects containing a bunch of screwy data after still having some ugly  albeit differently styled  code     So  here s what I came up with to clean this up   It could use further development  but this should help serve as a base for those of you looking for more reasonable JSON building code   import java util AbstractMap SimpleEntry  import java util ArrayList  import java util List  import org json simple JSONObject       create and initialize an object  public static JSONObject buildObject  final SimpleEntry    entries          JSONObject object   new JSONObject        for  SimpleEntry e   entries   object put  e getKey    e getValue          return object         nest a list of objects inside another                           public static void putObjects  final JSONObject parentObject  final String key                                 final JSONObject    objects          List objectList   new ArrayList lt JSONObject gt         for  JSONObject o   objects   objectList add  o        parentObject put  key  objectList           Implementation example   JSONObject jsonRequest   new JSONObject    putObjects  jsonRequest   parent1Key       buildObject           new SimpleEntry   child1Key1    someValue            new SimpleEntry   child1Key2    someValue               buildObject           new SimpleEntry   child2Key1    someValue            new SimpleEntry   child2Key2    someValue

User · Answer

In order to have this result     aoColumnDefs     aTargets   0   aDataSort   0 1     aTargets   1   aDataSort   1 0     aTargets   2   aDataSort   2 3 4       that holds the same data as            aoColumnDefs             aDataSort     0  1     aTargets     0              aDataSort     1  0     aTargets     1              aDataSort     2  3  4     aTargets     2                you could use this code       JSONObject jo   new JSONObject        Collection lt JSONObject gt  items   new ArrayList lt JSONObject gt          JSONObject item1   new JSONObject        item1 put  aDataSort   new JSONArray 0  1        item1 put  aTargets   new JSONArray 0        items add item1       JSONObject item2   new JSONObject        item2 put  aDataSort   new JSONArray 1  0        item2 put  aTargets   new JSONArray 1        items add item2       JSONObject item3   new JSONObject        item3 put  aDataSort   new JSONArray 2  3  4        item3 put  aTargets   new JSONArray 2        items add item3        jo put  aoColumnDefs   new JSONArray items         System out println jo toString

[java] Add data to JSONObject

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