现在nmc的文章需要和服务器同步,app需要知道服务器上的某一篇文章是否修改过、删除了、或者未发生改变。
向服务发送文章id已经已知的更新日期。
服务返回state: modified:这篇文章修改过了;deleted:这篇文章不存在(了);exist:文章未发送改变。
向服务器发送xml:
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< articlelist > < article
id = "23"
update = "20110813"
/> < article
id = "13"
update = "20110723"
/> < article
id = "23"
update = "20110415"
/> </ articlelist > |
</articlelist>
服务器返回xml:
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< articlelist > < article
id = "23"
state = "modified"
/> < article
id = "13"
state = "deleted"
/> < article
id = "23"
state = "exist"
/> </ articlelist > |