Android- create JSON Array and JSON Object

Question

How can I create a JSON with this format in Android  Since the API that I will be passing will parse JsonArray then the object  Or would it be okay if just to pass a json object  Since I will just have to insert 1 transaction per service  call          student                            id   1               name    John Doe                year    1st                curriculum    Arts                birthday   3 3 1995                                   id   2               name    Michael West                year    2nd                curriculum    Economic                birthday   4 4 1994                     What I know is only the JSONObject  Like this one   JSONObject obj   new JSONObject    try       obj put  id    3        obj put  name    NAME OF STUDENT        obj put  year    3rd        obj put  curriculum    Arts        obj put  birthday    5 5 1993      catch  JSONException e           TODO Auto-generated catch block     e printStackTrace        Any ideas  Thanks

User · Answer

Have been struggling with this till I found out the answer:

Use GSON library:

Gson gson = Gson();
String str_json = gson.tojson(jsonArray);`

Pass the json array. This will be auto stringfied. This option worked perfectly for me.

User · Answer

Use the following code   JSONObject student1   new JSONObject    try       student1 put  id    3        student1 put  name    NAME OF STUDENT        student1 put  year    3rd        student1 put  curriculum    Arts        student1 put  birthday    5 5 1993       catch  JSONException e           TODO Auto-generated catch block     e printStackTrace       JSONObject student2   new JSONObject    try       student2 put  id    2        student2 put  name    NAME OF STUDENT2        student2 put  year    4rd        student2 put  curriculum    scicence        student2 put  birthday    5 5 1993       catch  JSONException e           TODO Auto-generated catch block     e printStackTrace        JSONArray jsonArray   new JSONArray     jsonArray put student1   jsonArray put student2    JSONObject studentsObj   new JSONObject        studentsObj put  Students   jsonArray      String jsonStr   studentsObj toString         System out println  jsonString    jsonStr

User · Answer

Map lt String  String gt  params   new HashMap lt String  String gt                       Temp array             List lt String   gt  tmpArray   new ArrayList lt  gt                 tmpArray add new String    b001   book1                  tmpArray add new String    b002   book2                        Json Array Example             JSONArray jrrM   new JSONArray                for int i 0  i lt tmpArray size    i                     JSONArray jrr   new JSONArray                    jrr put tmpArray get i  0                    jrr put tmpArray get i  1                    jrrM put jrr                               Json Object Example            JSONObject jsonObj   new JSONObject                try                   jsonObj put  plno   000000001                                       jsonObj put  rows   jrrM                 catch  JSONException ex                   ex printStackTrace                                      Bundles them             params put  user    guest                params put  tb    book store                params put  action   save                params put  data   jsonObj toString                    Now you can send them to the server

User · Answer

Here s a simpler  but not so short  version which doesn t require try-catch   Map lt String  String gt  data   new HashMap lt  gt     data put  user    mark facebook com    data put  pass    123     JSONObject jsonData   new JSONObject data     If you want to add a jsonObject into a field  you can do this way   data put  socialMedia    new JSONObject    put  facebookId    1174989895893400     data put  socialMedia    new JSONObject    put  googleId    106585039098745627377       Unfortunately it needs a try-catch because of the put   method   IF you want to avoid try-catch again  not very recommended  but it s ok if you can guarantee well formated json strings   you might do this way   data put  socialMedia       facebookId    1174989895893400         You can do the same about JsonArrays and so on    Cheers

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JSONObject jsonResult   new JSONObject    try     jsonResult put  clave    valor      jsonResult put  username    iesous      jsonResult put  password    1234       catch  JSONException e         TODO Auto-generated catch block  e printStackTrace       Log d  DEV   jsonResult- gt   jsonResult

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public void DataSendReg String picPath  final String ed2  String ed4  int bty1  String bdatee  String ed1  String cno  String address   String select item  String select item1  String height  String weight           final ProgressDialog dialog new ProgressDialog SignInAct this         dialog setMessage  Process              AsyncHttpClient httpClient new AsyncHttpClient          RequestParams params new RequestParams          File pic   new File picPath         try             params put  image  pic           catch  FileNotFoundException e              e printStackTrace                  params put  height  height         params put  weight  weight         params put  pincode  select item1         params put  area  select item         params put  address  address         params put  contactno  cno         params put  username  ed1         params put  email  ed2         params put  pass  ed4         params put  bid  bty1         params put  birthdate  bdatee         params put  city   Surat          params put  state   Gujarat            httpClient post WebAPI REGAPI params new JsonHttpResponseHandler               Override           public void onStart                   dialog show                            Override           public void onSuccess int statusCode  Header   headers  JSONObject response                  try                     String done response get  msg   toString                      if done equals  s                            Toast makeText SignInAct this   Registration Success Fully   Toast LENGTH SHORT  show                          DataPrefrenceMaster SetRing ed2                         startActivity new Intent SignInAct this  LoginAct class                          finish                                          else  if done equals  ex                            Toast makeText SignInAct this   email already exist   Toast LENGTH SHORT  show                       else Toast makeText SignInAct this   Registration failed   Toast LENGTH SHORT  show                    catch  JSONException e                      Toast makeText SignInAct this   e       e getMessage    Toast LENGTH SHORT  show                                            Override           public void onFailure int statusCode  Header   headers  Throwable throwable  JSONObject errorResponse                  Toast makeText SignInAct this   Server not Responce   Toast LENGTH SHORT  show                  Log d  jkl   error                            Override           public void onFinish                        dialog dismiss

User · Answer

It s too late to answer  sorry about it  for creating the below body         quot username quot    quot  Rajab quot        quot email quot    quot rajab mohammadi gmail com quot        quot phone quot    quot  93767626554 quot        quot password quot    quot 123asd quot        quot carType quot    quot 600fdcc646bc6409ae97e2ab quot        quot fcmToken quot   quot lljlkdsajfljasldfj lsa quot        quot profilePhoto quot    quot https   st depositphotos com 2101611 3925 v 600 depositphotos 39258143-stock-illustration-businessman-avatar-profile-picture jpg quot        quot documents quot              quot DL quot                                    quot  id quot    quot 5fccb687c5b4260011810125 quot                    quot uriPath quot    quot https   webfume-onionai s3 amazonaws com guest public document 326634-beats by dre-wallpaper-1366x768 jpg quot                                    quot Registration quot                                    quot  id quot    quot 5fccb687c5b4260011810125 quot                    quot uriPath quot    quot https   webfume-onionai s3 amazonaws com guest public document 326634-beats by dre-wallpaper-1366x768 jpg quot                                    quot Insurance quot                                     quot  id quot    quot 5fccb687c5b4260011810125 quot                    quot uriPath quot    quot https   webfume-onionai s3 amazonaws com guest public document 326634-beats by dre-wallpaper-1366x768 jpg quot                                     quot CarInside quot                                     quot  id quot    quot 5fccb687c5b4260011810125 quot                    quot uriPath quot    quot https   webfume-onionai s3 amazonaws com guest public document 326634-beats by dre-wallpaper-1366x768 jpg quot                                     quot CarOutside quot                                     quot  id quot    quot 5fccb687c5b4260011810125 quot                    quot uriPath quot    quot https   webfume-onionai s3 amazonaws com guest public document 326634-beats by dre-wallpaper-1366x768 jpg quot                                   You can create dynamically like the below code  JSONObject jsonBody   new JSONObject    try       jsonBody put  quot username quot   userName       jsonBody put  quot email quot   email       jsonBody put  quot phone quot   contactNumber       jsonBody put  quot password quot   password       jsonBody put  quot carType quot   carType       jsonBody put  quot fcmToken quot    quot lljlkdsajfljasldfj lsa quot        jsonBody put  quot profilePhoto quot    quot https   st depositphotos com 2101611 3925 v 600 depositphotos 39258143-stock-illustration-businessman-avatar-profile-picture jpg quot         JSONObject document   new JSONObject         try           document put  quot DL quot   createDocument  quot 5fccb687c5b4260011810125 quot    quot https   st depositphotos com 2101611 3925 v 600 depositphotos 39258143-stock-illustration-businessman-avatar-profile-picture jpg quot             document put  quot Registration quot   createDocument  quot 5fccb687c5b4260011810125 quot    quot https   st depositphotos com 2101611 3925 v 600 depositphotos 39258143-stock-illustration-businessman-avatar-profile-picture jpg quot             document put  quot Insurance quot   createDocument  quot 5fccb687c5b4260011810125 quot    quot https   st depositphotos com 2101611 3925 v 600 depositphotos 39258143-stock-illustration-businessman-avatar-profile-picture jpg quot             document put  quot CarInside quot   createDocument  quot 5fccb687c5b4260011810125 quot    quot https   st depositphotos com 2101611 3925 v 600 depositphotos 39258143-stock-illustration-businessman-avatar-profile-picture jpg quot             document put  quot CarOutside quot   createDocument  quot 5fccb687c5b4260011810125 quot    quot https   st depositphotos com 2101611 3925 v 600 depositphotos 39258143-stock-illustration-businessman-avatar-profile-picture jpg quot           catch  JSONException e            e printStackTrace               jsonBody put  quot documents quot   document toString          Log i  quot MAHDI quot    quot Hello  Mahdi  Data   quot    jsonBody     catch  JSONException e        e printStackTrace       And the createDocument method code  public JSONArray createDocument String id  String imageUrl    JSONObject dlObject   new JSONObject    try       dlObject put  quot  id quot   id       dlObject put  quot uriPath quot   imageUrl     catch  JSONException e           TODO Auto-generated catch block     e printStackTrace      JSONArray dlArray   new JSONArray    dlArray put dlObject    return dlArray

User · Answer

JSONObject obj   new JSONObject                try                   obj put  id    3                    obj put  name    NAME OF STUDENT                    obj put  year    3rd                    obj put  curriculum    Arts                    obj put  birthday    5 5 1993                   catch  JSONException e                       TODO Auto-generated catch block                 e printStackTrace                               JSONArray js new JSONArray obj toString                  JSONObject obj2   new JSONObject                 obj2 put  student   js toString

User · Answer

public JSONObject makJsonObject int id    String name    String year                String curriculum    String birthday    int numberof students              throws JSONException           JSONObject obj   null          JSONArray jsonArray   new JSONArray            for  int i   0  i  lt  numberof students  i                  obj   new JSONObject                try                   obj put  id   id i                    obj put  name   name i                    obj put  year   year i                    obj put  curriculum   curriculum i                    obj put  birthday   birthday i                   catch  JSONException e                       TODO Auto-generated catch block                 e printStackTrace                              jsonArray put obj                      JSONObject finalobject   new JSONObject            finalobject put  student   jsonArray           return finalobject

User · Answer

You should use JSONObject put method  https   developer android com reference org json JSONObject html put java lang String  20double

User · Answer

You can create a a method and pass paramters to it and get the json as a response     private JSONObject jsonResult String Name int id  String curriculum  throws JSONException           JSONObject json   null          json   new JSONObject          Name                   Name                                   Id            id                 Curriculum                               curriculum                       return json            I hope this will help you

[android] Android- create JSON Array and JSON Object

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