用于嵌套对象和数组的 JSON 映射器

Question

I have a Json String from a webservice response.

This JSON sting has nested objects and arrays. I have tried to map it with java objects using jackson and GSON but i am getting errors in both the cases.

This is my Json:

{"events": [{
    "Code": "4", 
    "eventDataSet": {
        "Bar":{"EvDesc":"WRAP_UP"},
        "Foo":{
            "AcssId":"**1234",
            "EvCSId":"12‌​34",
            "custId":"3501234","Recid":"bknz"
        }
    }
]}

I want to pull the values of Bar and Foo objects from this json.

Please suggest how can i map such type of responses.

Answer 1

Libraries such as Gson and Jackson shouldn't have any trouble de-serializing valid JSON Strings.

Most probably the problem is with object types you're using to de-serialize your inputs.

You can use this site to generate POJO from one of your JSON responses. Input your JSON and select JSON as Source Type.

Then, with Gson :

Gson gson = new GsonBuilder().create();
Person p = gson.fromJson(inputString, Example.class);

Answer 2

Your json seems to have some problem. Here is modified json, and I am able to convert it to Object using jackson.

{
    "events": [{
        "code": "4",
        "eventDataSet": {
            "bar": {
                "evDesc": "WRAP_UP"
            },
            "foo": {
                "acssId": "**1234",
                "evCSId": "12??34",
                "custId": "3501234",
                "recid": "bknz"
            }
        }
    }]
}