How to get a specific value from json request in Java

Question

When I do this in git bash:

curl -XPOST "https://evepraisal.com/appraisal.json?market=jita&raw_textarea=tritanium&persist=no"

I will get a JSON response like this:

{
    "appraisal": {
        "created": 1582333288,
        "kind":" listing",
        "market_name": "jita",
        "totals": {
            "buy": 13.96,
            "sell": 14.62,
            "volume": 0.02
        },
        "items":[
            {
                "name": "tritanium",
                "typeID": 34,
                "typeName": "Tritanium",
                "typeVolume": 0.01,
                "quantity": 2,
                "prices": {
                    "all": {
                        "avg": 7.792728706899779,
                        "max": 6660,
                        "median": 8.49,
                        "min": 0.01,
                        "percentile": 10,
                        "stddev": 11.835529435279334,
                        "volume": 22008301773,
                        "order_count": 78
                    },
                    "buy": {
                        "avg": 4.520566796010778,
                        "max": 6.98,
                        "median": 5,
                        "min": 0.01,
                        "percentile": 6.98,
                        "stddev": 1.2552914981531016,
                        "volume": 3832347488,
                        "order_count": 33
                    },
                    "sell": {
                        "avg": 8.740860647577046,
                        "max": 6660,
                        "median": 8.49,
                        "min": 7.31,
                        "percentile": 7.31,
                        "stddev": 12.927105236235532,
                        "volume": 18175954285,
                        "order_count": 45
                    },
                    "updated": "2020-02-22T00:58:22.615370433Z",
                    "strategy":" orders"
                },
                "meta": {
                }
            }
        ],
        "raw": "tritanium x 2",
        "parser_lines": {
            "listing": [
                0
            ]
        },
        "unparsed": {
        },
        "private": false,
        "price_percentage": 100,
        "live": false,
        "expire_minutes": 21600
    }
}

My question is:
How can I pick up a specific attribute from this JSON response?

Like totals:sell:14.62

My second question is:
How can I do that in Java and put the specific attribute in a variable?

Does this answer your question? [How to parse JSON in Java](https://stackoverflow.com/questions/2591098/how-to-parse-json-in-java) — AMC, Feb 22 '20 at 01:12

score 0 · Answer 1 · answered Feb 22 '20 at 01:37

Everything depends on what do you exactly need.

If just get one value from response just take it from the response with JSONObject.
you could create Java's POJO for your response, like ResponseWrapper class. Deserialise the response to Java model. Then you can call something like:

double sell = responseObject.getTotals().getSell();

Additional info:

Parse JSON in Java

How to get a specific value from json request in Java

1 Answers1