我如何使用 JDOM 解析以下 XML
我有一个 XML 文档，如下所示：
<?xml version="1.0" encoding="UTF-8"?>
<decision>
<question id="0">
<questionText>What type is your OS?</questionText>
<answer id="0">
<answerText>windows</answerText>
</answer>
<answer id="1">
<answerText>linux</answerText>
</answer>
<answer id="2">
<answerText>mac</answerText>
</answer>
</question>
<question id="1">
<questionText>What are you looking for?</questionText>
<answer id="0">
<answerText>table</answerText>
<question id="0">
<questionText>Which color table you want?</questionText>
<answer id="0">
<answerText>green</answerText>
</answer>
<answer id="1">
<answerText>black</answerText>
</answer>
<answer id="2">
<answerText>pink</answerText>
</answer>
</question>
</answer>
<answer id="1">
<answerText>chair</answerText>
</answer>
<answer id="2">
<answerText>bed</answerText>
</answer>
<answer id="3">
<answerText>cloth</answerText>
</answer>
</question>
现在我想在Java中使用jdom解析上面的XML。需要注意的递归且重要的一点是，问题不能是问题的直接子级，并且同样适用于答案。
I have an XML document as follows:
<?xml version="1.0" encoding="UTF-8"?>
<decision>
<question id="0">
<questionText>What type is your OS?</questionText>
<answer id="0">
<answerText>windows</answerText>
</answer>
<answer id="1">
<answerText>linux</answerText>
</answer>
<answer id="2">
<answerText>mac</answerText>
</answer>
</question>
<question id="1">
<questionText>What are you looking for?</questionText>
<answer id="0">
<answerText>table</answerText>
<question id="0">
<questionText>Which color table you want?</questionText>
<answer id="0">
<answerText>green</answerText>
</answer>
<answer id="1">
<answerText>black</answerText>
</answer>
<answer id="2">
<answerText>pink</answerText>
</answer>
</question>
</answer>
<answer id="1">
<answerText>chair</answerText>
</answer>
<answer id="2">
<answerText>bed</answerText>
</answer>
<answer id="3">
<answerText>cloth</answerText>
</answer>
</question>
Now I want to parse the above XML using jdom in Java. It kind of recursive and important thing to note is a Question can't be a direct child of Question and same applies for Answer.
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文章
鉴于之前的相关问题，我想重复并强调其他人的建议（例如 JB Nizet 评论此问题）：
学习 Java，学习 XML，选择您的项目所需的工具和 API，并学习使用它们。如果您在某一时刻遇到麻烦，这里的每个人都会很高兴帮助您调试代码。
我知道这可能看起来很严酷，但实际上你的程序是由 StackOverflow 用户而不是你自己构建的。
话虽如此，此答案顶部的链接指向有关使用 JDOM 遍历 XML 的教程。
Article
In the light of previous related questions, I'd like to repeat and stress the advice of others (like JB Nizet commented on this question):
Learn Java, learn XML, pick the tools and API's you need for your project and learn to use those too. If at one point you get into trouble, everybody here will be happy to help you out debugging your code.
I'm aware that this may seem harsh but it gets to the point where your program gets built by StackOverflow users and not yourself.
That being said, the link at the top of this answer leads to a tutorial on using JDOM to traverse your XML.
使用
Element.getChildren (String)获取所有问题标签并循环访问该列表 - 调用getChildren(String)获取所有答案，或getChild(String)如果只能有一个子元素。Use
Element.getChildren(String)to get all of the question tags and loop through that List - callinggetChildren(String)to get all of the answers, orgetChild(String)if there can be only one child element.首先您需要使用 XSD 来验证 XML。
first that you need use is XSD to validate the XML.