[FIXED] Can we create an object in Java with out class like in js or python with random key and values

Issue

Like in other programing languages - python or JS, when we create a rest api specifically post for the request body we attract some JSON Object

EX:

url: .../employee (Post)

request body: {option: {filter: "suman"}}

In Python or JS we can just do request_body.option.filter and get the data

How can I achieve the same with Java ? Do I need need to create a class for the reqeust_body and for option and make an instance object request_body

Solution

I was able to parse the request body with JSONObject like below

@PostMapping("/customers")
    public List<Customer> getCustomerById(@RequestBody Map<String, Object> req) {

        // {option: {filter: "alf"}}
        JSONObject json = new JSONObject(req);
        System.out.println(json.toString(4));
        System.out.println(json.getJSONObject("option").get("filter"));

        -----------------------
        -----------------------
        -----------------------



}

Output

Answered By - bharath bhushan
Answer Checked By - Dawn Plyler (JavaFixing Volunteer)