具有多个属性的NSXMLParser [英] NSXMLParser with multiple attributes

问题描述

我有以下XML（正在为iPhone做一个应用程序）：

I have the following XML (doing an app for iPhone):

<Row>
<Field name="employee_id_disp">00070431</Field>
<Field name="given_name">John</Field>
<Field name="family_name">Doe</Field>
</Row> ...

如何仅检索其中一个属性的值，例如 John值for attribute name = given_name吗？

How can I retrieve values only for one of the attributes, for example value "John" for attribute name="given_name" ?

感谢答案。

推荐答案

大概，您将使用 NSXMLParser 对此进行解析。

Presumably, you'll be using NSXMLParser to parse this.

这意味着您的 didStartElement：委托回调，您应该检查传递的属性字典以查看其是否具有值为 given_name的键 name 。如果是这样，您将要设置一些标志，以开始记录在 foundCharacters：回调中找到的字符。到达元素字段的 didEndElement：回调后，您将所有字符聚合到一个字符串中，该字符串即为名称。 （很有可能，所有字符都会在一个回调中报告给 foundCharacters：，但这不能保证。）

That means in your didStartElement: delegate callback, you should check the passed attributes dictionary to see if it has a key "name" with a value "given_name". If it does, you'll want to set some flag that you can start recording the characters found in foundCharacters: callback. Once you reach the didEndElement: callback for the element "Field", you'll have aggregated all the characters into a string, and that string is the name. (Most likely, the characters will all come be reported in one callback to foundCharacters:, but that's not guaranteed).

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