java - 如何从java中的json对象替换“emailRecipients”键值

Question

我需要emailRecipients用其他值替换值。

这是JSON

{"payload": {"injectedDetails": "{\"injectedDetails\":\"test\"}","originalPayload": "{\"messageId\":\"232342",
\"emailRecipients\":[\"[e-mail]\"]}"},
    "status": "OK"
}

我在下面尝试过，但它放置了一个新密钥而不是替换现有的 once.even 尝试使用 putOnce()

jsonObjOriInj=new JSONObject(jsonobjectString);
jsonObjOriInj.put("emailRecipients", "2323");

标签： javajson

Answer 1

您的 JSON 无效，但假设 JSON 应采用以下格式，

{
    "payload": {
        "injectedDetails": {
             "injectedDetails": "test"
        }
     },
     "originalPayload": {
        "messageId": "232342",
        "emailRecipients":[
            "[e-mail]"
        ]
     },
    "status": "OK"
}

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

public class Main {

    public static void main(String[] args) throws ParseException {

        String data = "{\"payload\":{\"injectedDetails\":{\"injectedDetails\":\"test\"}},\"originalPayload\":{\"messageId\":\"232342\",\"emailRecipients\":[\"[e-mail]\"]},\"status\":\"OK\"}";

        JSONParser parser = new JSONParser();

        JSONObject jsonObject = (JSONObject) parser.parse(data);

        //get originalPayload object
        JSONObject originalPayload = (JSONObject) jsonObject.get("originalPayload");

        // create new json array
        JSONArray newEmailRecipients = new JSONArray();

        // add new email recipients
        newEmailRecipients.add("[e-mail]");

        // update originalPayload object with new emailRecipients
        originalPayload.put("emailRecipients", newEmailRecipients);

        // update JSON with updates originalPayload object
        jsonObject.put("originalPayload", originalPayload);

        System.out.println(jsonObject);

    }

}

输出：

{"payload":{"injectedDetails":{"injectedDetails":"test"}},"originalPayload":{"messageId":"232342","emailRecipients":"[[e-mail]]"},"status":"OK"}