How I can parse JSON to Array in Java? [closed]

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Sorry for my limited english first.

I have a JSON sent from a POST request to my spring controller in Java.

I need parse this JSON to a Array. How I can do this?

Thanks!

use Google's gson library. And show us some code.

AKS
– AKS

2014-03-26 10:39:11 +00:00
Commented Mar 26, 2014 at 10:39 — AKS
– AKS, Commented Mar 26, 2014 at 10:39
this JSON -- > Which JSON ?

Vinayak Pingale
– Vinayak Pingale

2014-03-26 10:40:35 +00:00
Commented Mar 26, 2014 at 10:40 — Vinayak Pingale
– Vinayak Pingale, Commented Mar 26, 2014 at 10:40
@VinayakPingale a JSON sent from a POST request ;)

AKS
– AKS

2014-03-26 10:42:59 +00:00
Commented Mar 26, 2014 at 10:42 — AKS
– AKS, Commented Mar 26, 2014 at 10:42
Similar Question: stackoverflow.com/questions/22644334/…

Arjit
– Arjit

2014-03-26 11:14:42 +00:00
Commented Mar 26, 2014 at 11:14 — Arjit
– Arjit, Commented Mar 26, 2014 at 11:14

Rohit Deshmukh · Accepted Answer · 2014-03-26 11:05:44Z

0

Another option would be to use json-smart

Convert JSON to an object JSONObject jsonObj = (JSONObject) JSONValue.parseWithException(inputJsonInStringFormat);
Retrieve array by using get() method Integer [] intArray = (JSONArray) (JSONObject) jsonObj.get("arrayName");

answered Mar 26, 2014 at 11:05

Rohit Deshmukh

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Tim Kuipers · Accepted Answer · 2014-03-26 10:55:00Z

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using javax.json library, it should be something like:

JsonReader reader = Json.createReader(new FileInputStream(dir));
JsonArray re = (JsonObject) reader.read() ;
double[] ret = new double[jre.size()];
for ( int i = 0; i<jre.size(); i++)
    ret[i] = Double.parseDouble( jre.getString(i) );

It does depend, however, on what the Json file looks like. Maybe it's a Json object, with one parameter which has an array as a value, or something. I hope this code can give you a headstart though.

answered Mar 26, 2014 at 10:55

Tim Kuipers

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Bassem Reda Zohdy · Accepted Answer · 2014-03-26 11:31:16Z

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you should not handle it by your-self let spring mvc do it for you, once you enabled spring mvc annotation you will have json converter implicitly, you will need only to add jackson jars to classpath, check this video https://www.youtube.com/watch?v=DnDCJjjSiu8 , your may face problem if want to send JSON as ["value1","value2"], in this case you will need to make custom JsonDeserializer

answered Mar 26, 2014 at 11:31

Bassem Reda Zohdy

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