How to convert single String containing a comma separated json values into a single json object?-CodePudding

I am getting some data which is a single string

"{"somekey": someValue}, {"someKey2": someValue}, {"someKey3": someValue}"

how would I return that as a single json object like this using java libraries?

{{"somekey": someValue}, {"someKey2": someValue}, {"someKey3": someValue}}

I have been trying to use the ObjectMapper class to read the value into a List but can't convert it.

List<String> list = mapper.readValue(jsonString, new TypeReference<List<String>> () {});

I have the option to retrieve the data in an array like this:

[{"somekey": someValue}, {"someKey2": someValue}, {"someKey3": someValue}]

but I still can't manage to convert it to a single json Object response

CodePudding user response：

String jsonString = "{"somekey": someValue}, {"someKey2": someValue}, {"someKey3": someValue}"; 
Object object = new ObjectMapper().readValue(jsonString, Object.class);

Try this

CodePudding user response：

If you have a JSON string that looks as follows:

String userJson = "[{'name': 'Alex','id': 1}, "
              "{'name': 'Brian','id':2}, "
              "{'name': 'Charles','id': 3}]";

And a corresponding POJO that looks as follows:

public class User 
{
    private long id;
    private String name;
          
    @Override
    public String toString() {
        return "User [id="   id   ", name="   name   "]";
    }
}

You could then use a library GSON to parse the JSON string into an array of User objects:

Gson gson = new Gson(); 
 
User[] userArray = gson.fromJson(userJson, User[].class);