JSON parsing Exception using Jackson - unexpected non-digit at line 1 column 2

Question

I'm kinda getting frustrated after searching and trying around everything my mind came up with...

I try to parse a JSON file into a list or array of MyObject. I found this post Link and played around with the code. But now I always get the same Exception, whatever I do/change in the JSON file.

Exception I get:

SyntaxError: JSON.parse: unexpected non-digit at line 1 column 2 of the JSON data

What I tried:

I reduced the file to just 2 objects not containing some special stuff to make sure it works. It doesnt..

Validating the json file with an online tool
All different types of importing the JSON as object list/array from 1
playing around with the JSON file

Heres the current code for importing

List<MyClass> myObjects = Arrays.asList(mapper.readValue(content, MyClass[].class));

JSON

[
    {
        "name":"1000.1000",
        "maskId":"1000",
        "fieldId":"1000",
        "i18nKey":"debugLabel_1",
        "label":"Logo",
        "tooltip":" ---"
    },
    {
        "name":"1000.1000",
        "maskId":"1000",
        "fieldId":"1000",
        "i18nKey":"debugLabel_1",
        "label":"Logo",
        "tooltip":" ---"
    }
]

MyClass

 public class MyClass{

        String name;
        String maskId;
        String fieldId;
        String i18nKey;
        String label;
        String tooltip;

        public MyClass(String name, String maskId, String fieldId, String i18nKey, String tooltip, String label) {
            this.name = name;
            this.maskId = maskId;
            this.fieldId = fieldId;
            this.i18nKey = i18nKey;
            this.tooltip = tooltip;
            this.label = label;
        }

        // Getter + Setter
    }

Thanks for advices in advance.

Your JSON seems to be valid. But there's a `:` before it in your question. Is it part of the JSON you want to parse? — cassiomolin, Sep 01 '17 at 09:01
Are you sure this is the exact JSON you are trying to send ? — Magus, Sep 01 '17 at 09:21
You need a default constructor for `MyClass`. I created one, generated both getters and setters and it worked for me. — cassiomolin, Sep 01 '17 at 09:38

score 0 · Answer 1 · answered Sep 01 '17 at 08:59

0

It seems that your class expects to receive a number for it's property and sees string.

This should work:

[
    {
        "name":"1.1",
        "maskId":1,
        "fieldId":"1",
        "i18nKey":"test1",
        "label":"Test 1",
        "tooltip":"---"
    },
    {
        "name":"1.2",
        "maskId":1,
        "fieldId":"2",
        "i18nKey":"test2",
        "label":"Test 2",
        "tooltip":"---"
    }
]

answered Sep 01 '17 at 08:59

Valeria Viana Gusmao

427
4
8

Maybe the function actually forces the type. Can you try opposite? Like setting `maskId` to integer? – Valeria Viana Gusmao Sep 01 '17 at 09:33

Fatima Naik · Answer 2 · 2017-09-01T09:32:26.377

0

Gson gson = new GsonBuilder().create();
final String jsonString = gson.toJson(mapper.readValue(content, MyClass[].class);

try this, i think it will work

edited Sep 01 '17 at 09:32

answered Sep 01 '17 at 09:01

Fatima Naik

304
3
11

score 0 · Answer 3 · answered Sep 01 '17 at 10:05

0

I solved it... but I still cant tell what the problem was.

I recreated all the files and Classes and nowit works... kinda strange

But thanks for the help!

answered Sep 01 '17 at 10:05

MartinLeitgeb

63
6