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how to add new data to existing json file in java

i'm trying to add new data to existing json file that named question.json but it's not working! it create a new file, can someone help me please!
mycode: i'm using json-simple1.1
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
public class Main {
public static void writeToJson() {
JSONObject jsonObject = new JSONObject();
jsonObject.put("question", "q3");
ArrayList<String>anss = new ArrayList<>();
anss.add("a1");
anss.add("a2");
anss.add("a3");
anss.add("a4");
JSONArray arr = new JSONArray();
arr.add(anss.get(0));
arr.add(anss.get(1));
arr.add(anss.get(2));
arr.add(anss.get(3));
jsonObject.put("answers",arr);
jsonObject.put("correct_ans", "2");
jsonObject.put("level", "2");
jsonObject.put("team", "animal");
try {
FileWriter file = new FileWriter("json/quetion.json");
file.write(jsonObject.toJSONString());
file.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void main(String[]args) {
writeToJson();
}
}
{
"questions":[
{
"question": "q1",
"answers": [
"answer1",
"answer2",
"answer3",
"answer4"
],
"correct_ans": "2",
"level": "1",
"team": "animal"
},
{
"question": "q2",
"answers": [
"answer1",
"answer2",
"answer3",
"answer4"
],
"correct_ans": "1",
"level": "2",
"team": "animal"
}
]
}
this is the json file i want to add what i wrote in the code to this json file but i failed! i need someone to tell me how can i add a new json object like {"question" : "q2" ...} without changing the format of the json file or creating a new json file.

org.json.simple
The structure of your JSON has more levels of nesting than can be observed in your code therefore your result doesn't match.
That's what you have in the JSON:
JSONObject { field : JSONArray [ JSONObject { field : value, field : JSONArray, ... }
I.e. JSONObject which contains a JSONArray which might contain several JSONObjects which in turn contain a JSONArray.
That's how it can be translated into the code (to avoid redundancy logic which for creating a nested JSONObject was extracted into a separate method):
JSONObject root = new JSONObject();
JSONArray questions = new JSONArray();
JSONObject question1 = createQuestion(
"q1", "2", "1", "animal",
"answer1", "answer2", "answer3", "answer4"
);
JSONObject question2 = createQuestion(
"q2", "1", "2", "animal",
"answer1", "answer2", "answer3", "answer4"
);
Collections.addAll(questions, question1, question2);
root.put("questions", questions);
public static JSONObject createQuestion(String questionId,
String correctAnswer,
String level, String team,
String... answers) {
JSONObject question = new JSONObject();
question.put("question", questionId);
JSONArray answersArray = new JSONArray();
Collections.addAll(answersArray, answers);
question.put("answers", answersArray);
question.put("correct_ans", correctAnswer);
question.put("level", level);
question.put("team", team);
return question;
}
That's it.
There's a lot of low-level logic which you can eliminate if you would choose a more mature tool for parsing JSON like Jackson, Gson.
Jackson
Here's an example using Jackson library.
Firstly, let's create two POJO: one representing a single question and another wrapping a list of question. For convince, and also in order to avoid posting boilerplate code, I would use Lombock's.
Question class:
#Builder
#AllArgsConstructor
#Getter
public static class Question {
private String questionId;
private List<String> answers;
private String correctAnswer;
private String level;
private String team;
}
Questions class:
#AllArgsConstructor
#Getter
public static class Questions {
private List<Question> questions;
}
Here's how such objects can be serialized:
Question question3 = Question.builder()
.questionId("q1")
.answers(List.of("answer1", "answer2", "answer3", "answer4"))
.correctAnswer("2")
.level("1")
.team("animal")
.build();
Question question4 = Question.builder()
.questionId("q2")
.answers(List.of("answer1", "answer2", "answer3", "answer4"))
.correctAnswer("1")
.level("2")
.team("animal")
.build();
Questions questions1 = new Questions(List.of(question3, question4));
ObjectMapper mapper = new ObjectMapper();
String json1 = mapper
.writerWithDefaultPrettyPrinter()
.writeValueAsString(questions1);
System.out.println(json1);
Output:
{
"questions" : [ {
"questionId" : "q1",
"answers" : [ "answer1", "answer2", "answer3", "answer4" ],
"correctAnswer" : "2",
"level" : "1",
"team" : "animal"
}, {
"questionId" : "q2",
"answers" : [ "answer1", "answer2", "answer3", "answer4" ],
"correctAnswer" : "1",
"level" : "2",
"team" : "animal"
} ]
}

How do I extract exact value from Json

Below Json I want to get only first mail value (abc#test.com) using java. Please anybody can suggest how do I extract exact value from below Json. Thanks in advance.
{
"profiles": [
{
"userId": "1234",
"content": {
"address": {
"business": {
"country": "IN",
"locality": "Chennai",
}
},
"name": {
"first": "abc",
"last": "abc"
},
"mail": [
"abc#test.com",
"xyz#test.com"
]
}
}
]
}

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class Test {
public static void main(String[] args) throws JSONException {
String jsonstring = "{\"profiles\":[{\"userId\":\"1234\",\"content\":{\"address\":{\"business\":{\"country\":\"IN\",\"locality\":\"Chennai\"}},\"name\":{\"first\":\"abc\",\"last\":\"abc\"},\"mail\":[\"abc#test.com\",\"xyz#test.com\"]}}]}";
System.out.println(jsonstring);
JSONObject jsonObject = new JSONObject(jsonstring);
JSONArray profiles = jsonObject.getJSONArray("profiles");
for (int i = 0; i < profiles.length(); i++) {
JSONObject curProfile= (JSONObject) profiles.get(i);
JSONArray mails= (JSONArray)((JSONObject)curProfile.get("content")).get("mail");
System.out.println(mails.get(0));
}
}
}
as they have already said json standard doesn't impose ordering, so be careful

I can able to get mail by using below code
//root = my json
JsonObject rootobj = root.getAsJsonObject();
JsonArray profilesItems = rootobj.getAsJsonArray("profiles");
JsonObject firstValue = profilesItems.get(0).getAsJsonObject().getAsJsonObject("content");
JsonElement emails = firstValue.get("mail");
String mail = emails.getAsJsonArray().get(0).getAsString();

How to modify the value of a JsonNode recursively using Jackson

Requirements:
I want to apply some functions on the inner values of the JsonNode. The functions can be different eg:- lowercasing some values or appending something to the values or replace the values with something. How can I achieve that using Jackson library? Note that the structure of the JSON data can be different which means I want to build a generic system which will accept some path expression which will basically decide where to change. I want to use functional programming style, so that I can pass these functions as arguments.
eg:
input:
{
"name": "xyz",
"values": [
{
"id": "xyz1",
"sal": "1234",
"addresses": [
{
"id": "add1",
"name": "ABCD",
"dist": "123"
},
{
"id": "add2",
"name": "abcd3",
"dist": "345"
}
]
},
{
"id": "xyz2",
"sal": "3456",
"addresses": [
{
"id": "add1",
"name": "abcd",
"dist": "123"
},
{
"id": "add2",
"name": "XXXXX",
"dist": "345"
}
]
}
]
}
In this case I have to two functions basically, lowercase() and convert_to_number(). I want to apply lowercase() function on all the "name" attribute inside all the "addresses" of each "value".
same goes for convert_to_number() , but for all the "dist" attribute.
So, basically the JSON expressions will be something like below for the functions:
lowercase() : /values/*/addresses/*/name
convert_to_number() : /values/*/addresses/*/dist
output:
{
"name": "xyz",
"values": [
{
"id": "xyz1",
"sal": "1234",
"addresses": [
{
"id": "add1",
"name": "abcd",
"dist": 123
},
{
"id": "add2",
"name": "abcd3",
"dist": 345
}
]
},
{
"id": "xyz2",
"sal": "3456",
"addresses": [
{
"id": "add1",
"name": "abcd",
"dist": 123
},
{
"id": "add2",
"name": "xxxx",
"dist": 345
}
]
}
]
}
Client code:
JsonNode jsonNode = ...
applyFunctionsRecursivelyBasedOnExpr(JsonNode jsonNode, String expr, Function )

As #MichalZiober in his answer already pointed out,
JsonPath offers a much more powerful API than Jackson,
when you need to do JSON-path-based operations.
Using methods JsonPath.parse and WriteContext.map
you can solve your problem in just a few lines:
import java.io.File;
import com.jayway.jsonpath.Configuration;
import com.jayway.jsonpath.JsonPath;
public class Main {
public static void main(String[] args) throws Exception {
File file = new File("input.json");
String json = JsonPath.parse(file)
.map("$.values[*].addresses[*].name", Main::lowerCase)
.map("$.values[*].addresses[*].dist", Main::convertToNumber)
.jsonString();
System.out.println(json);
}
private static Object lowerCase(Object currentValue, Configuration configuration) {
if (currentValue instanceof String)
return ((String)currentValue).toLowerCase();
return currentValue;
}
private static Object convertToNumber(Object currentValue, Configuration configuration) {
if (currentValue instanceof String)
return Integer.valueOf((String)currentValue);
return currentValue;
}
}

JsonPath
You could use JsonPath library which has a better JSON Path handling. When Jackson supports only JSON Pointer draft-ietf-appsawg-json-pointer-03. Take a look on JsonPointer documentation. With JsonPath library you could do that in this way:
import com.jayway.jsonpath.DocumentContext;
import com.jayway.jsonpath.JsonPath;
import net.minidev.json.JSONArray;
import java.io.File;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
public class JsonPathApp {
public static void main(String[] args) throws Exception {
File jsonFile = new File("./resource/test.json").getAbsoluteFile();
JsonModifier jsonModifier = new JsonModifier(jsonFile);
Function<Map<String, Object>, Void> lowerCaseName = map -> {
final String key = "name";
map.put(key, map.get(key).toString().toLowerCase());
return null;
};
Function<Map<String, Object>, Void> changeDistToNumber = map -> {
final String key = "dist";
map.put(key, Integer.parseInt(map.get(key).toString()));
return null;
};
jsonModifier.update("$.values[*].addresses[*]", Arrays.asList(lowerCaseName, changeDistToNumber));
jsonModifier.print();
}
}
class JsonModifier {
private final DocumentContext document;
public JsonModifier(File json) throws IOException {
this.document = JsonPath.parse(json);
}
public void update(String path, List<Function<Map<String, Object>, Void>> transformers) {
JSONArray array = document.read(path);
for (int i = 0; i < array.size(); i++) {
Object o = array.get(i);
transformers.forEach(t -> {
t.apply((Map<String, Object>) o);
});
}
}
public void print() {
System.out.println(document.jsonString());
}
}
Your path, should work on JSON object-s which are represented by Map<String, Object>. You can replace keys in given object, add them, remove them just like replacing, adding and removing keys in Map.
Jackson
You can of course mock JsonPath feature by iterating over Json Pointer. For each * we need to create loop and iterate over it using counter and until node is not missing. Below you can see simple implementation:
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.node.ObjectNode;
import java.io.File;
import java.util.Arrays;
import java.util.List;
import java.util.function.Function;
public class JsonApp {
public static void main(String[] args) throws Exception {
File jsonFile = new File("./resource/test.json").getAbsoluteFile();
ObjectMapper mapper = new ObjectMapper();
mapper.enable(SerializationFeature.INDENT_OUTPUT);
JsonNode root = mapper.readTree(jsonFile);
Function<ObjectNode, Void> lowerCaseName = node -> {
final String key = "name";
node.put(key, node.get(key).asText().toLowerCase());
return null;
};
Function<ObjectNode, Void> changeDistToNumber = node -> {
final String key = "dist";
node.put(key, Integer.parseInt(node.get(key).asText()));
return null;
};
JsonModifier jsonModifier = new JsonModifier(root);
jsonModifier.updateAddresses(Arrays.asList(lowerCaseName, changeDistToNumber));
System.out.println(mapper.writeValueAsString(root));
}
}
class JsonModifier {
private final JsonNode root;
public JsonModifier(JsonNode root) {
this.root = root;
}
public void updateAddresses(List<Function<ObjectNode, Void>> transformers) {
String path = "/values/%d/addresses/%d";
for (int v = 0; v < 100; v++) {
int a = 0;
do {
JsonNode address = root.at(String.format(path, v, a++));
if (address.isMissingNode()) {
break;
}
if (address.isObject()) {
transformers.forEach(t -> t.apply((ObjectNode) address));
}
} while (true);
if (a == 0) {
break;
}
}
}
}
This solution is slower than with JsonPath because we need to travers whole JSON tree n times where n number of matching nodes. Of course, our implementation could be a much faster using Streaming API.

Problem in parsing multiple json objects each having multiple Arrays from a validated JSON format-JavaString

Want to Process following JSON string (Validated with jsonlint.com)
[{
"label": "Hospital",
"domain": "Health_Care",
"synonymlabels": [{
"label": "SHCO"
}, {
"label": "HCO"
}],
"childrenlabels": [{
"label": "Childern_Hospital"
}, {
"label": "Mental_Hospital"
}, {
"label": "Heart_Hospital"
}, {
"label": "Orthopadic_Hospital"
}, {
"label": "General_Hospital"
}, {
"label": "Gynac_Hospital"
}, {
"label": "Cancer_Hospital"
}, {
"label": "Burn_Hospital"
}, {
"label": "Trauma_Care_Hospital"
}]
},
{
"label": "Doctor",
"domain": "Health_Care",
"synonymlabels": [{
"label": "Clinician"
}, {
"label": "Physician"
}, {
"label": "Medical_Practitioner"
}],
"childrenlabels": [{
"label": "Cardiaologist"
}, {
"label": "Allergist"
}, {
"label": "Nurologist"
}, {
"label": "Gynacologist"
}, {
"label": "General_Physician"
}, {
"label": "Anesthetist"
}, {
"label": "Physiotherapist"
}, {
"label": "Urologist"
}, {
"label": "Oncologist"
}, {
"label": "Homeopath"
}, {
"label": "Dentist"
}]
}
]
Sample Code
I am able to run the following sample code and able to get the desired output. If I change JSON string i.e. object "{}" to JSON ARRAY "[{},{},{}]" to parse and necessary change in the code (no idea that how to deal with the Array) then I'm getting no results in the console. Feeling paralytic in finding my error. Please help. Struggled for almost a day in tweaking the code.
import java.io.IOException;
import java.io.StringReader;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonToken;
public class gsontester {
public static void main(String args[]) {
String jsonString =
"{ \"name\":\"Mahesh Kumar\", \"age\":21,\"verified\":false,\"marks\": [100,90,85,100,14,95]}";
JsonReader reader = new JsonReader(new StringReader(jsonString));
try {
handleJsonObject(reader);
}
catch (IOException e) {
e.printStackTrace();
}
}
private static void handleJsonObject(JsonReader reader) throws IOException {
reader.beginObject();
String fieldname = null;
while (reader.hasNext()) {
JsonToken token = reader.peek();
if (token.equals(JsonToken.BEGIN_ARRAY)) {
System.out.print("Marks [ ");
handleJsonArray(reader);
System.out.print("]");
} else if (token.equals(JsonToken.END_OBJECT)) {
reader.endObject();
return;
} else {
if (token.equals(JsonToken.NAME)) {
//get the current token
fieldname = reader.nextName();
}
if ("name".equals(fieldname)) {
//move to next token
token = reader.peek();
System.out.println("Name: "+reader.nextString() );
}
if("age".equals(fieldname)) {
//move to next token
token = reader.peek();
System.out.println("Age:" + reader.nextInt());
}
if("verified".equals(fieldname)) {
//move to next token
token = reader.peek();
System.out.println("Verified:" + reader.nextBoolean());
}
}
}
}
Output
Name: Mahesh Kumar
Age:21
Verified:false
Marks [ 100 90 85 100 14 95 ]

Your JSON has one tricky element - label arrays contain one-element JSON object. We can unwrap it using custom deserialiser. To do that let's create simple POJO structure which fit's JSON payload. JSON starts from [ so it means we need to parse it as an array. All elements have the same structure. We can define it like below:
class Phrase {
private String label;
private String domain;
#JsonAdapter(StringWrapperJsonDeserializer.class)
#SerializedName("synonymlabels")
private List<String> synonymLabels;
#JsonAdapter(StringWrapperJsonDeserializer.class)
#SerializedName("childrenlabels")
private List<String> childrenLabels;
public String getLabel() {
return label;
}
public void setLabel(String label) {
this.label = label;
}
public String getDomain() {
return domain;
}
public void setDomain(String domain) {
this.domain = domain;
}
public List<String> getSynonymLabels() {
return synonymLabels;
}
public void setSynonymLabels(List<String> synonymLabels) {
this.synonymLabels = synonymLabels;
}
public List<String> getChildrenLabels() {
return childrenLabels;
}
public void setChildrenLabels(List<String> childrenLabels) {
this.childrenLabels = childrenLabels;
}
#Override
public String toString() {
return "Phrase{" +
"label='" + label + '\'' +
", domain='" + domain + '\'' +
", synonymLabels=" + synonymLabels +
", childrenLabels=" + childrenLabels +
'}';
}
}
When we want to use another name for property in Java comparing to what we have in JSON we use SerializedName annotation. To inform Gson library that we would like to handle given element in a specific way we use JsonAdapter annotation. In case we do not know how to write custom deserialiser it is always safe to use Map<String, Object> type for unknown or random JSON object. In case we have list of objects we can use List<Map<String, Object>>. Let's write simple deserialiser for labels arrays:
class StringWrapperJsonDeserializer implements JsonDeserializer<List<String>> {
#Override
public List<String> deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
if (json.isJsonArray()) {
final JsonArray array = (JsonArray) json;
final int size = array.size();
if (size == 0) {
return Collections.emptyList();
}
List<String> labels = new ArrayList<>(size);
for (int i = 0; i < size; i++) {
JsonObject jsonElement = (JsonObject) array.get(i);
Set<String> keys = jsonElement.keySet();
for (String key : keys) {
labels.add(jsonElement.getAsJsonPrimitive(key).getAsString());
}
}
return labels;
}
return Collections.emptyList();
}
}
Algorithm is quite simple: if given element is an array, iterate over it and take each object one-by-one. For each object get all keys and add corresponding values to labels list which is our result of deserialisation process. Example usage, could look like this:
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonArray;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.annotations.JsonAdapter;
import com.google.gson.annotations.SerializedName;
import java.io.File;
import java.io.FileReader;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.stream.Stream;
public class GsonApp {
public static void main(String[] args) throws Exception {
File jsonFile = new File("./resource/test.json").getAbsoluteFile();
Gson gson = new GsonBuilder()
.setPrettyPrinting()
.create();
Phrase[] phrases = gson.fromJson(new FileReader(jsonFile), Phrase[].class);
Stream.of(phrases).forEach(System.out::println);
}
}
Above code prints:
Phrase{label='Hospital', domain='Health_Care', synonymLabels=[SHCO, HCO], childrenLabels=[Childern_Hospital, Mental_Hospital, Heart_Hospital, Orthopadic_Hospital, General_Hospital, Gynac_Hospital, Cancer_Hospital, Burn_Hospital, Trauma_Care_Hospital]}
Phrase{label='Doctor', domain='Health_Care', synonymLabels=[Clinician, Physician, Medical_Practitioner], childrenLabels=[Cardiaologist, Allergist, Nurologist, Gynacologist, General_Physician, Anesthetist, Physiotherapist, Urologist, Oncologist, Homeopath, Dentist]}
Read also:
JsonAdapter
Serializing and Deserializing a List with Gson

How to parse JSON String to java object with jackson?

I am currently having trouble trying to parse this VCAP_SERVICES to java objects. I do not quite understand how to structure the POJO to allow it to map the values from the json string. Can someone please help me structure my pojo so that it is aligns with the json string?
I want to create objects for both of the credentials: accessToken... jdbcurl.
VCAP_SERVICES
"VCAP_SERVICES": {
"user-provided": [
{
"credentials": {
"accessTokenUri": "tokenurl",
"apiUrl": "apiurl",
"clientId": "typeofID",
"clientSecret": "secretAf",
"scope": "none"
},
"syslog_drain_url": "",
"volume_mounts": [],
"label": "user-provided",
"name": "OAuth2",
"tags": []
},
{
"credentials": {
"jdbcUrl": "jdbc:oracle:connection[host]:[port]/service",
"spring.datasource.driver-class-name": "oracle.jdbc.OracleDriver",
"spring.datasource.initialize": "false"
},
"syslog_drain_url": "",
"volume_mounts": [],
"label": "user-provided",
"name": "Database",
"tags": []
}
]
Java Class
ObjectMapper mapper = new ObjectMapper();
//json String to Object
CupsProperties properties = mapper.readValue(VCAP_Services, CupsProperties.class);
System.out.println(properties.getJdbcUrl() + "!!!!!!!!!!!!!!!!!!!");
POJOS
public class UserProviderWrapper {
#JsonProperty("user-provided")
public List<CupsProperties> cupsProperties;
#JsonProperty("syslog_drain_url")
public String syslog_drain_url;
#JsonProperty("volume_mounts")
public List<String> volume_mounts;
#JsonProperty("label")
public String label;
#JsonProperty("name")
public String name;
#JsonProperty("tags")
public List<String> tags;
//getters and setters
public class CupsProperties {
#JsonProperty("jdbcUrl")
public String jdbcUrl;
#JsonProperty("spring.datasource.driver-class-name")
public String driver;
#JsonProperty("spring.datasource.initialize")
public String initialize;
//getters and setters
Error
Unrecognized field "user-provided" (class rest.springframework.model.CupsProperties), not marked as ignorable (2 known properties: "jdbcUrl", "dataSource"])
at [Source: {"user-provided":[{ "credentials": { "jdbcUrl": "jdbc:oracle:thin:user/pass//host:port/service", "spring.datasource.driver-class-name": "oracle.jdbc.OracleDriver", "spring.datasource.initialize": "false" }, "syslog_drain_url": "", "volume_mounts": [ ], "label": "user-provided", "name": "Oracle", "tags": [ ] }]}; line: 1, column: 19] (through reference chain: rest.springframework.model.CupsProperties["user-provided"])

Check below solution and see if it fulfills your need. You can build on to it if you need to parse more fields.
import java.util.Iterator;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
public class JsonParser {
public static void main(String[] args) {
String VCAP_Services = "{\"userProvided\": [{\"credentials\": {\"accessTokenUri\": \"tokenurl\",\"apiUrl\": \"apiurl\",\"clientId\": \"typeofID\",\"clientSecret\": \"secretAf\",\"scope\": \"none\"},\"syslog_drain_url\": \"\",\"volume_mounts\": [],\"label\": \"user-provided\",\"name\": \"OAuth2\",\"tags\": []},{\"credentials\": {\"jdbcUrl\": \"jdbc:oracle:connection[host]:[port]/service\",\"spring.datasource.driver-class-name\": \"oracle.jdbc.OracleDriver\",\"spring.datasource.initialize\": \"false\"},\"syslog_drain_url\": \"\",\"volume_mounts\": [],\"label\": \"user-provided\",\"name\": \"Database\",\"tags\": [] } ] } ";
CupsProperties properties=null;
try {
JSONParser jsonParser = new JSONParser();
JSONObject vcapServiceJSONObject = (JSONObject) jsonParser.parse(VCAP_Services);
for(Object key: vcapServiceJSONObject.keySet()){
String keyStr = (String) key;
JSONArray userProvidedList = (JSONArray) vcapServiceJSONObject.get(keyStr);
Iterator i = userProvidedList.iterator();
while (i.hasNext()) {
JSONObject innerObj = (JSONObject) i.next();
JSONObject credentialsObject = (JSONObject) innerObj.get("credentials");
if(credentialsObject.containsKey("jdbcUrl")){
//set to your pojo objects
System.out.println("JDBC url:" + credentialsObject.get("jdbcUrl"));
}
if(credentialsObject.containsKey("accessTokenUri")){
//set to your pojo objects
System.out.println("Access token URI:" + credentialsObject.get("accessTokenUri"));
}
}
}
} catch (ParseException e) {
e.printStackTrace();
}
}
}
Output
Access token URI:tokenurl
JDBC url:jdbc:oracle:connection[host]:[port]/service