extract json from json string

Question

I am fetching data from the database as a JSON String:

{"companyName":"abcd","address":"abcdefg"}

How can I extract the company name from the given JSON String?

Do you mean `how to work with JSON in Java`? It seems unclear what you are asking about. I made this assumption only because of `java` tag. — Yeldar Kurmangaliyev, Sep 25 '15 at 05:06

score 3 · Accepted Answer · answered Sep 25 '15 at 05:07

3

Refer JSON

JSONObject jsonObject = new JSONObject(YOUR_JSON_STRING);
JSONObject companyName = jsonObject .get("companyName");

answered Sep 25 '15 at 05:07

Rahul Yadav

1,503
8
11

1

Although you did provide a link to some javadoc, you didn't explain that this requires installing a third-party jar file in order to work, or where to find such file. – Andreas Sep 25 '15 at 05:16
You can download the code from [Here](https://github.com/douglascrockford/JSON-java) compile it and create a jar. Adding this jar should make these classes available. – Rahul Yadav Sep 25 '15 at 05:46

Kruti Patel · Answer 2 · 2015-09-25T05:31:01.397

2

JsonParser parser =  new JsonParser();
JsonElement jsonElement = parser.parse("your string");
JsonObject jsonObj = jsonElement.getAsJsonObject();
String comapnyName = jsonObj.get("companyName").getAsString();

This is how we can parse json string in java. You will need to add com.google.gson library to compile this code.

edited Sep 25 '15 at 05:31

answered Sep 25 '15 at 05:11

Kruti Patel

1,422
2
23
36

2

There is no `JsonParser` is the Java Standard Library. This code won't compile. – Andreas Sep 25 '15 at 05:14
@Andreas: Thanks for remind me. I have updated the library. – Kruti Patel Sep 25 '15 at 05:32

score 2 · Answer 3 · answered Oct 28 '15 at 06:07

2

JSONObject obj = new JSONObject();

  obj.put("name","foo");
  obj.put("num",new Integer(100));
  obj.put("balance",new Double(1000.21));
  obj.put("is_vip",new Boolean(true));

  StringWriter out = new StringWriter();
  obj.writeJSONString(out);

answered Oct 28 '15 at 06:07

Prakash Bisht

226
1
10

Shardendu · Answer 4 · 2015-09-25T09:57:35.310

1

JSONObject json = (JSONObject)new JSONParser().parse("{\"companyName\":\"abcd\", \"address\":\"abcdefg\"}");
System.out.println("companyName=" + json.get("companyName"));
System.out.println("address=" + json.get("address"));

edited Sep 25 '15 at 09:57

answered Sep 25 '15 at 05:19

Shardendu

3,480
5
20
28

The question is about Java, not JavaScript. – Andreas Sep 25 '15 at 05:19
I have edited my answer ,I think this Gonna work – Shardendu Sep 25 '15 at 11:26

extract json from json string

4 Answers4