0
我有一個對象數組,我將其提交給控制器之前進行轉換。對象分配深度複製導致問題
角代碼拷貝如下:
sourceObjArray: SourceObject[] = [..];
targetObjArray: SourceObject[]= [];
targetObjArray = object.assign(sourceObjArray);
// when i change target object it also cause source object to change
transformSourceObject(targetObjArray)
以下似乎工作:
targetObjArray = object.assign({}, sourceObjArray);
// when i call transform it does not effect source object :)
transformSourceObject(targetObjArray)
,但它會導致以下問題。
Could not read document: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token at [Source: [email protected]; line: 1, column: 1]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token at [Source: [email protected]; line: 1, column: 1]
我的控制器方法簽名是:
@RequestMapping(.., method=RequestMethod.POST)
public save(@RequestBody List<Object>, BindResult bindResult){}
爲什麼你認爲這是一個副本? ['Object.assign'](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)突變了它的第一個參數。 – jonrsharpe
我只是想在angular1 angular.copy中做深度複製對象。你能建議嗎? –
請將「SourceObject」的代碼添加到問題 –