无法使用 JsonPath 库获取带空格的键的值

Question

I'm using Json Path library to parse JSON. I've following json which has key with space:

{
    "attributes": {
        "First Name": "Jim",
        "Last Name": "Rohn"
    }
}

In order to get value of First Name , I wrote code like (where json is object which holds above json) -

String firstName = JsonPath.from(json).getString("attributes.First Name");

But it results into following error -

java.lang.IllegalArgumentException: Invalid JSON expression:
Script1.groovy: 1: expecting EOF, found 'Attributes' @ line 1, column 67.
   .First Name

Could you please suggest how to get values of key having spaces using json-path library?

Answer 1

Try using bracket notation for First Name as follows:

String firstName = JsonPath.from(json).getString("attributes.['First Name']");

---

UPDATE

Sorry for mixing different JsoPath libraries up.

If you are using com.jayway.jsonpath , try following way for escaping:

DocumentContext jsonContext = JsonPath.parse(json);
String firstName = jsonContext.read("$.attributes.['First Name']");

But if you are using ***.restassured.json-path , please use this one:

String firstName = JsonPath.from(json).getString("attributes.'First Name'");

Answer 2

You have to escape the key with single quotes

Use below code:

String firstName = JsonPath.from(json).getString("'attributes.First Name'");

Answer 3

If you are using io.restassured.path.json.JsonPath library then Escape Sequences is required in the path expression.

String firstName = JsonPath.from(json).getString("attributes.\"First Name\"");

\" <-- Insert a double quote character in the text at this point.

So your path expression looks like (attributes."First Name") and can be parsed by JsonPath library