Normally to print out request body i using ObjectMapper, but this way removing space and printing object to string in one line, example :
if i send request body like this :
{
"Header" : "value"
}
and i using objectMapper to print that object
ObjectMapper mapper = new ObjectMapper();
mapper.writeValueAsString(requestBody)
the out put is like this :
{"Header":"value"}
how to print Original request body without any modification ?
I'm not sure if you can print it in it's original form but you can pretty print it.
With Jackson's Object Mapper, you can do something like:
ObjectMapper mapper = new ObjectMapper();
String json = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(body);
System.out.println(json);
or
ObjectMapper mapper = new ObjectMapper().enable(SerializationFeature.INDENT_OUTPUT);
String json = mapper.writeValueAsString(body);
System.out.println(json);
I don't think you can do this without using any framework.
But you can use the gson for this if you enable the prettyPrinting option. Example:
Gson gson = new GsonBuilder()
.setPrettyPrinting()
.create();
prettyPrintedString = gson.toJson(requestBody, Object.class);
I used jackson to convert json strings to json objects / arrays like so:
JSONObject jsonObj = XML.toJSONObject(myXmlString);
JSONObject userObj = jsonObj.getJSONObject("user"); // is there a GSON version of this?
JSONArray orders = userObj.getJSONArray("orders");
My main question is: is there a GSON version of getting json objects / arrays without converting to a pojo? My json is very complex so it's difficult to create pojos.
Secondly, does gson allow you to convert an xml string to json like jackson does (line 1)?
For the first question:
You can create a JsonObject from a json string
String json = "{ \"key1\": \"value1\", \"key2\": false}";
JsonObject jsonObject = new JsonParser().parse(json).getAsJsonObject();
otherwise you can create a Map object
String jsonString = "{'employee.name':'Bob','employee.salary':10000}";
Gson gson = new Gson();
Map map = gson.fromJson(jsonString, Map.class);
for reference: https://www.baeldung.com/gson-json-to-map
For the second question:
I found this question in stackoverflow
is there a GSON version of getting json objects / arrays without
converting to a pojo?
Something like this can do the job
import com.google.gson.*;
JsonParser parser = new JsonParser();
JsonElement json = parser.parse(myJsonString);
//get as object
JsonObject obj = json.getAsJsonObject();
//get as array
JsonArray arr = json.getAsJsonArray();
does gson allow you to convert an xml string to json like jackson does
No
I want to parse my json string at run time. But, the problem is my json string is not a valid one due to some issues. Is there any way to parse the json with validation. My json string looks like this:
{"page_1":"{\"city\":\"Delhi\",\"locality\":\"Alaknanda\",\"Name_of_Person\":\"Varun Patil\",\"User_email_address\":\"varun.vap#gmail.com\",\"user_phone_number\":\"\",\"sub_locality\":\"\",\"street_name\":\"Pune\",\"home_plot_no\":\"xyz\",\"pin_code\":\"411060\",\"project_society_build_name\":\"\",\"landmark_reference_1\":\"\",\"landmark_reference_2\":\"\",\"No_of_Schools\":20,\"No_of_Hospitals\":20,\"No_of_Metro\":0,\"No_of_Mall\":20,\"No_of_Park\":20,\"Distance_of_schools\":1.51,\"Distance_of_Hospitals\":2.5,\"Distance_of_Metro\":0,\"Distance_of_Mall\":1.9,\"Distance_of_Park\":1.1,\"lat\":28.5304408,\"lng\":77.2505733,\"ipinfo\":{\"ip\":\"59.88.97.45\",\"hostname\":\"No Hostname\",\"city\":\"Pune\",\"region\":\"Maharashtra\",\"country\":\"IN\",\"loc\":\"18.5333,73.8667\",\"org\":\"AS9829 National Internet Backbone\",\"postal\":\"411001\"}}","page_2":"{\"home_type\":\"Flat\",\"area\":\"1000\",\"beds\":\"2 BHK\",\"bath_rooms\":2,\"building_age\":\"3\",\"floors\":\"\",\"balcony\":1,\"amenities\":\"regular\",\"amenities_options\":{\"gated_security\":\"\",\"physical_security\":\"\",\"cctv_camera\":\"\",\"controll_access\":\"\",\"elevator\":\"\",\"power_back_up\":\"\",\"parking\":\"\",\"partial_parking\":\"\",\"onsite_maintenance_store\":\"\",\"open_garden\":\"\",\"party_lawn\":\"\",\"amenities_balcony\":\"\",\"club_house\":\"\",\"fitness_center\":\"\",\"swimming_pool\":\"\",\"party_hall\":\"\",\"tennis_court\":\"\",\"basket_ball_court\":\"\",\"squash_coutry\":\"\",\"amphi_theatre\":\"\",\"business_center\":\"\",\"jogging_track\":\"\",\"convinience_store\":\"\",\"guest_rooms\":\"\"},\"interior\":\"regular\",\"interior_options\":{\"tiles\":\"\",\"marble\":\"\",\"wooden\":\"\",\"modular_kitchen\":\"\",\"partial_modular_kitchen\":\"\",\"gas_pipe\":\"\",\"intercom_system\":\"\",\"air_conditioning\":\"\",\"partial_air_conditioning\":\"\",\"wardrobe\":\"\",\"sanitation_fixtures\":\"\",\"false_ceiling\":\"\",\"partial_false_ceiling\":\"\",\"recessed_lighting\":\"\"},\"location\":\"regular\",\"location_options\":{\"good_view\":\"\",\"transporation_hub\":\"\",\"shopping_center\":\"\",\"hospital\":\"\",\"school\":\"\",\"ample_parking\":\"\",\"park\":\"\",\"temple\":\"\",\"bank\":\"\",\"less_congestion\":\"\",\"less_pollution\":\"\"},\"maintenance\":\"\",\"maintenance_value\":\"\",\"near_by\":{\"school\":\"\",\"hospital\":\"\",\"mall\":\"\",\"park\":\"\",\"metro\":\"\"},\"city\":\"Delhi\",\"locality\":\"Alaknanda\",\"token\":\"9a2a8bf359494054f98c80009b5bd0e7\"}"}
I tried the following methods:
String result = java.net.URLDecoder.decode(jsonstring, "UTF-8");
String withCharacters = StringEscapeUtils.unescapeHtml(jsonstring);
JSONObject json = (JSONObject)new JSONParser().parse(jsonstring);
System.out.println("city=" + json.get("city"));
System.out.println("locality=" + json.get("locality"));
Nothing works for me and any help will be appreciated.
You have some escaped json inside your main json structure. That means it's valid json, but after parsing the main structure you have to parse the value of page_1 (and probably all remaining pages as well). Try this:
JSONParser parser = new JSONParser();
JSONObject json = (JSONObject)parser.parse(jsonstring);
JSONObject nestedJson = (JSONObject)parser.parse(json.get("page_1"));
System.out.println("city=" + nestedJson.get("city"));
I have the following code:
public static void postHttpStream(ArrayListMultimap<String, String> fcmbuildProperties){
HttpClient client = new HttpClient();
Gson gson = new Gson();
System.out.println(fcmbuildProperties);
String jsonString = gson.toJson(fcmbuildProperties);
System.out.println(jsonString);
}
where fcmbuildProperties is an ArrayListMultimap. I try to convert that to JSON here: String jsonString = gson.toJson(fcmbuildProperties); But this returns an empty array. What do I need to do instead?
This is the input that fcmbuildProperties contain : {build.name=[test_project], build.timestamp=[1425600727488], build.number=[121]}
I need to convert this to Json. with key/values.
Use ArrayListMultimap#asMap()
String jsonString = gson.toJson(fcmbuildProperties.asMap());
Gson considers ArrayListMultimap as a Map and ignores its internal state which actually manages the multimap. asMap returns a corresponding Map instance which you can serialize as expected.
I am using JSONObject to parse nested JSON from an API example:
{"results":[{"congress":"112","state":"NJ","num_results":"2","offset":"0","members": [{"id":"L000123","first_name":"Frank"..........................
I am having trouble accessing the members nested area using JSONObject.
This is my code, any thoughts?
url= new URL("http://api.nytimes.com/svc/politics/v3/us/legislative/congress/112/senate/members.json?&state=NJ&api-key=7967107ef3c9e8d6c2f560027f87904e:17:65990356");
ByteArrayOutputStream urlOutputStream = new ByteArrayOutputStream();
IOUtils.copy(url.openStream(), urlOutputStream);
String urlContents = urlOutputStream.toString();
// parse the JSON object returned
JSONObject jsonO = new JSONObject(urlContents);
System.out.println(jsonO.toString());
JSONObject results = jsonO.getJSONObject("results");
JSONObject senators = results.getJSONObject("members");
You should use third party library like GSON.
http://code.google.com/p/google-gson/