JSON解析不适用于JSONObject

Question

I have a JSON question.

The following code is where the error occurs. I have verified the result string is the following.

{"name":"test", "num1":1.0, "num2":2.0}

and this is the code.

byte[] raw = new byte[1536];

try{

   DatagramPacket packet = new DatagramPacket( raw, raw.length ); 
   mSocket.receive( packet ); //Multicast Socket declared in another part of the program
   String result = new String(packet.getData(), 0, packet.getLength());
   JSONObject jObj = new JSONObject(result);
   String name = jObj.getString("name");
}
catch (JSONException e){

}
catch(Exception eX){

}

However I get a JSONException with the following error.

No value for name.

Is there something wrong with my JSON syntax?

Thanks,

Answer 1

It looks like there is an issue with the encoding. Have you tried specifying UTF-8

String response = new String(packet.getData(), 0, packet.getLength(), "UTF-8");

I'm not sure what the issue could be. The rest of your code looks correct.

Answer 2

String result = "{\"name\":\"test\", \"num1\":1.0, \"num2\":2.0}";
JSONObject data = new JSONObject(result);
System.out.println(data.getString("name"));
System.out.println(data.get("num1"));
System.out.println(data.get("num2"));