如何将 Java 中的点符号表示的 JsonObject 转换为嵌套的 JsonObject？

huangapple
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英文:

How to convert dot notation JsonObject to nested JsonObject in Java?

问题

  1. {
  2.    "ab": {
  3.       "cd": {
  4.          "e": "foo",
  5.          "f": "bar"
  6.       },
  7.       "g": "foo2"
  8.    }
  9. }
英文:

I want to convert this JSON:

  1. {
  2.     "ab.g": "foo2",
  3.     "ab.cd.f": "bar",
  4.     "ab.cd.e": "foo"
  5. }

to this:

  1. {
  2.    "ab": {
  3.       "cd": {
  4.          "e": "foo",
  5.          "f": "bar"
  6.       },
  7.       "g": "foo2"
  8.    }
  9. }

I have found this: Convert javascript dot notation object to nested object but the accepted answer on this post has some language specific syntax and I am not able to rewrite the same logic in Java.

Note: There is no attempt in the question because I have answered this myself - because there is no such question on stackoverflow for Java specifically.

答案1

得分: 3

以下是翻译好的部分：

回答自己的问题：

  1. import io.vertx.core.json.JsonObject;
  3. public class Tester {
  4.     public static void main(String[] args) {
  5.         JsonObject jsonObject = new JsonObject();
  6.         deepenJsonWithDotNotation(jsonObject, "ab.cd.e", "foo");
  7.         deepenJsonWithDotNotation(jsonObject, "ab.cd.f", "bar");
  8.         deepenJsonWithDotNotation(jsonObject, "ab.g", "foo2");
  9.     }
  11.     private static void deepenJsonWithDotNotation(JsonObject jsonObject, String key, String value) {
  12.         if (key.contains(".")) {
  13.             String innerKey = key.substring(0, key.indexOf("."));
  14.             String remaining = key.substring(key.indexOf(".") + 1);
  16.             if (jsonObject.containsKey(innerKey)) {
  17.                 deepenJsonWithDotNotation(jsonObject.getJsonObject(innerKey), remaining, value);
  18.             } else {
  19.                 JsonObject innerJson = new JsonObject();
  20.                 jsonObject.put(innerKey, innerJson);
  21.                 deepenJsonWithDotNotation(innerJson, remaining, value);
  22.             }
  23.         } else {
  24.             jsonObject.put(key, value);
  25.         }
  26.     }
  27. }
英文:

Answering my own question:

  1. import io.vertx.core.json.JsonObject;
  3. public class Tester {
  4.     public static void main(String[] args) {
  5.         JsonObject jsonObject = new JsonObject();
  6.         deepenJsonWithDotNotation(jsonObject, "ab.cd.e", "foo");
  7.         deepenJsonWithDotNotation(jsonObject, "ab.cd.f", "bar");
  8.         deepenJsonWithDotNotation(jsonObject, "ab.g", "foo2");
  9.     }
  11.     private static void deepenJsonWithDotNotation(JsonObject jsonObject, String key, String value) {
  12.         if (key.contains(".")) {
  13.             String innerKey = key.substring(0, key.indexOf("."));
  14.             String remaining = key.substring(key.indexOf(".") + 1);
  16.             if (jsonObject.containsKey(innerKey)) {
  17.                 deepenJsonWithDotNotation(jsonObject.getJsonObject(innerKey), remaining, value);
  18.             } else {
  19.                 JsonObject innerJson = new JsonObject();
  20.                 jsonObject.put(innerKey, innerJson);
  21.                 deepenJsonWithDotNotation(innerJson, remaining, value);
  22.             }
  23.         } else {
  24.             jsonObject.put(key, value);
  25.         }
  26.     }
  27. }

huangapple
  • 本文由 发表于 2020年9月27日 07:50:10
  • 转载请务必保留本文链接：https://go.coder-hub.com/64083526.html
  • java
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