How to create correct JSONArray in Java using JSONObject

Question

how can I create a JSON Object like the following  in Java using JSONObject           employees               firstName    John    lastName    Doe               firstName    Anna    lastName    Smith               firstName    Peter    lastName    Jones               manager               firstName    John    lastName    Doe               firstName    Anna    lastName    Smith               firstName    Peter    lastName    Jones             I ve found a lot of example  but not my exactly JSONArray string

User · Answer

Please try this     hope it helps  JSONObject jsonObj1 null  JSONObject jsonObj2 null  JSONArray array new JSONArray    JSONArray array2 new JSONArray     jsonObj1 new JSONObject    jsonObj2 new JSONObject      array put new JSONObject   put  firstName    John   put  lastName   Doe     put new JSONObject   put  firstName    Anna   put  v    Smith     put new JSONObject   put  firstName    Peter   put  v    Jones      array2 put new JSONObject   put  firstName    John   put  lastName   Doe     put new JSONObject   put  firstName    Anna   put  v    Smith     put new JSONObject   put  firstName    Peter   put  v    Jones      jsonObj1 put  employees   array   jsonObj1 put  manager   array2    Response response   null  response   Response status Status OK  entity jsonObj1 toString    build    return response

User · Answer

Here is some code using java 6 to get you started   JSONObject jo   new JSONObject    jo put  firstName    John    jo put  lastName    Doe     JSONArray ja   new JSONArray    ja put jo    JSONObject mainObj   new JSONObject    mainObj put  employees   ja     Edit  Since there has been a lot of confusion about put vs add here I will attempt to explain the difference   In java 6 org json JSONArray contains the put method and in java 7 javax json contains the add method    An example of this using the builder pattern in java 7 looks something like this   JsonObject jo   Json createObjectBuilder      add  employees   Json createArrayBuilder        add Json createObjectBuilder          add  firstName    John          add  lastName    Doe        build

User · Answer

I suppose you re getting this JSON from a server or a file  and you want to create a JSONArray object out of it   String strJSON          your string goes here JSONArray jArray    JSONArray  new JSONTokener strJSON  nextValue       once you get the array  you may check items like JSONOBject jObject   jArray getJSONObject 0     Hope this helps

User · Answer

Small reusable method can be written for creating person json object to avoid duplicate code  JSONObject  getPerson String firstName  String lastName      JSONObject person   new JSONObject       person  put  firstName   firstName      person  put  lastName   lastName      return person       public JSONObject getJsonResponse         JSONArray employees   new JSONArray        employees put getPerson  John   Doe         employees put getPerson  Anna   Smith         employees put getPerson  Peter   Jones          JSONArray managers   new JSONArray        managers put getPerson  John   Doe         managers put getPerson  Anna   Smith         managers put getPerson  Peter   Jones          JSONObject response  new JSONObject        response put  employees   employees        response put  manager   managers        return response

[java] How to create correct JSONArray in Java using JSONObject

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