Java read JSON input stream

Wrap it with a BufferedReader and start reading the data from it:

StringBuilder sb = new StringBuilder();try (BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()))) {    String line;    while ( (line = br.readLine()) != null) {        sb.append(line).append(System.lineSeparator());    }    String content = sb.toString();    //as example, you can see the content in console output    System.out.println(content);}

Once you have it as a String, parse it with a library like Gson or Jackson.

        StringBuffer buffer = new StringBuffer();        int ch;        boolean run = true;        try {            while(run) {                ch = reader.read();                if(ch == -1) { break; }                buffer.append((char) ch);                if(isJSONValid(buffer.toString())){ run = false;}            }        } catch (SocketTimeoutException e) {            //handle exception        }private boolean isJSONValid(String test) {        try {            new JSONObject(test);        } catch (JSONException ex) {            try {                new JSONArray(test);            } catch (JSONException ex1) {                return false;            }        }        return true;    }