自身一對(duì)多關(guān)聯(lián)模型的JSON轉(zhuǎn)換

       最近又遇到了一個(gè)問(wèn)題， 這里有一個(gè)一對(duì)多自身關(guān)聯(lián)的模型
然后我用JSON把這個(gè)模型轉(zhuǎn)換成string的時(shí)候會(huì)報(bào)錯(cuò)：will throw a JSONException if a cycle is found.后來(lái)去查了下JSON的API發(fā)現(xiàn)是我的JSON轉(zhuǎn)換策略有問(wèn)題。原文是這樣的：

public abstract class CycleDetectionStrategy
extends Object

Base class for cycle detection in a hierarchy.
The JSON spec forbides cycles in a hierarchy and most parsers will raise and error when a cycle is detected. This class defines a contract for handling those cycles and two base implementations:

• STRICT - will throw a JSONException if a cycle is found.
• LENIENT - will return an empty array or null object if a cycle is found.

說(shuō)的很清楚了所以必須做點(diǎn)修改像這樣：

這樣修改以后轉(zhuǎn)換就正常啦~~~。呵呵，HIBERNATE還有好多問(wèn)題我沒(méi)解決煩惱中。。。。。。

posted on 2008-06-20 22:59 Cloud kensin 閱讀(1089) 評(píng)論(0)  編輯  收藏 所屬分類: Java