Java 从 JSONArray 中删除 JSON 对象 - Jettison
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Remove JSON object from JSONArray - Jettison
提问by Timothy Rajan
Is there a direct way to remove an JSONObject stored in the JSONArray by using index. I tried all the possibilities. Still not able to remove the JSON object from the JSON Array. Any hint will be helpful Thanks
有没有一种直接的方法可以使用 index.js 删除存储在 JSONArray 中的 JSONObject？我尝试了所有的可能性。仍然无法从 JSON 数组中删除 JSON 对象。任何提示都会有帮助谢谢
采纳答案by Jhanvi
In java-json , there is no direct method to remove jsonObject, but using json-simple, it is simple to do so:
在 java-json 中，没有直接删除 jsonObject 的方法，但是使用json-simple，这样做很简单：
JSONArray jsonArray = new JSONArray();
JSONObject jsonObject = new JSONObject();
JSONObject jsonObject1 = new JSONObject();
JSONObject jsonObject2 = new JSONObject();
jsonObject.put("key1", "value1");
jsonObject1.put("key2", "value2");
jsonObject2.put("key3", "value3");
jsonArray.add(jsonObject);
jsonArray.add(jsonObject1);
jsonArray.add(jsonObject2);
//........ Whole Json Array
System.out.println(jsonArray);
//To remove 2nd jsonObject (index starts from 0)
jsonArray.remove(1);
// Now the array will not have 2nd Object
System.out.println(jsonArray);
回答by R. Barzell
Have you tried using delete to do this?
您是否尝试过使用删除来执行此操作？
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete
回答by Ranjit Swain
just get the index of the JSON object in the json array
只需在 json 数组中获取 JSON 对象的索引
and remove the json object by array.splice(index,howmany,item1,.....,itemX) method
并通过 array.splice(index,howmany,item1,....,itemX) 方法删除 json 对象
for more information just use this link http://www.w3schools.com/jsref/jsref_splice.asp
有关更多信息，请使用此链接 http://www.w3schools.com/jsref/jsref_splice.asp
