blocks|key|1999774|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1999775|我想在java中解析XML。这将是DOM或SAX。在一本书中读到JAXP是一本好书。同样，当我搜索出XERCES/XALAN时。哪个解析器是常用的？|blockquote|1999776|1999777|1999778|Xerces是DOM和SAX的实现，它内置于JDK中。见javax.xml.parsers。|offset|length|style|CODE|1999779|stops中的|1999780|如果注册单个元素事件，SAX解析将在遇到该元素后停止处理该XML消息。|1999781|1999782|1999783|不是的。|1999784|1999785|在一本书中读到，DOM读取整个XML并加载到内存中，即使我想知道单个元素值。|1999786|1999787|1999788|是。|1999789|entityMap^0|0|0|0|0|S|H|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|-4|4|5|6|12|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|13|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|14|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|15|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|16|7|@$H|17|I|18|J|K]]|8|@]|9|$]]|$1|L|3|M|4|5|6|19|7|@]|8|@]|9|$]]|$1|N|3|O|4|C|6|1A|7|@]|8|@]|9|$]]|$1|P|3|-4|4|5|6|1B|7|@]|8|@]|9|$]]|$1|Q|3|-4|4|5|6|1C|7|@]|8|@]|9|$]]|$1|R|3|S|4|5|6|1D|7|@]|8|@]|9|$]]|$1|T|3|-4|4|5|6|1E|7|@]|8|@]|9|$]]|$1|U|3|V|4|C|6|1F|7|@]|8|@]|9|$]]|$1|W|3|-4|4|5|6|1G|7|@]|8|@]|9|$]]|$1|X|3|-4|4|5|6|1H|7|@]|8|@]|9|$]]|$1|Y|3|Z|4|5|6|1I|7|@]|8|@]|9|$]]|$1|10|3|-4|4|5|6|1J|7|@]|8|@]|9|$]]]|11|$]]

<blockquote>
 I want to parse XML in java. It will be DOM or SAX. Read in a book
 JAXP is good one. Also when i google out found XERCES/XALAN. Which
 parser is commonly used?
</blockquote>

Xerces is an implementation of both DOM and SAX, and it is built into the JDK. See <code>javax.xml.parsers</code>.

<blockquote>
 In SAX Parser if i register for a single element event will the SAX
 parse stops processing the XML message after encountering the element.
</blockquote>

No.

<blockquote>
 Read in a book DOM reads the entire XML and loads into memory even if
 i want to know single element value.
</blockquote>

Yes.

blocks|key|1996990|text|我不确定我掌握了您想要完成的所有细节，但是如果您有描述XML格式的xsd文件，我会说JAXB是可行的方法。它将带您使用xsd并自动为您生成类。然后，您可以轻松地往返-封送和解封送数据。最近，当我处理一个类似的任务时，Netbeans的自动化水平给我留下了深刻的印象。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1996991|希望我研究JAXB的建议是有帮助的。|1996992|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I'm not sure I grasp all the details of what you want to accomplish but if you have xsd files describing the XML format I'd say JAXB is the way to go. It'll take you xsd and generate classes for you all auto-magically. Then you can easily go back and forth - marshal and unmarshal data. I was very impressed by the level of automation in Netbeans recently when I tackled a similar task

Hope my suggestion to look into JAXB is helpful.

blocks|key|1001436|text|上面提到的所有解析器都是优秀的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1001437|。如果应用程序进行了大量的XML处理，我个人的首选是XERCES，否则，“内置”解析器就足够好了。|ordered-list-item|1001438|需要处理SAX解析器中的每个事件，而忽略您不感兴趣的事件。通过“销毁”解析器对象，您可以在任何时候停止解析。如果您只对一条大型消息的一个或两个元素感兴趣，那么SAX就是最好的选择。如果您对所有或大多数元素感兴趣，然后使用DOM解析器，则会受到轻微的性能影响，但是，“给我想要的东西”API比SAX+API要清晰得多。|1001439|1001440|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|K|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|L|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

<ol>
<li>All of the above parsers you mention are excellent. My personal preference would be XERCES if the application did a lot of XML processing, otherwise, the "built in" parsers are more than good enough.</li>
<li>You will need to process every event from the SAX parser and ignore the ones you are not interested in. You can stop parsing at any point by "destroying" the parser object. If you are only interested in one or two elements of a large message then SAX is the way to go. If you are interested in all or most of the elements then use the DOM parser, you take a slight performance hit, but, the "give me what I want" API makes for much clearer code than the "take what I give you" SAX API.</li>
</ol>

blocks|key|1001445|text|对于简单的XML到POJO，我发现XStream是Java中所有解析器中最不烦人的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1001446|http://x-stream.github.io/|offset|length|1001447|entityMap|0|LINK|mutability|MUTABLE|url|http://xstream/^0|0|0|Q|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

For simple XML to POJO, I've found XStream to be the least annoying of all parsers in Java:

<a href="http://xstream" rel="nofollow">http://x-stream.github.io/</a>

blocks|key|1997031|text|DOM和SAX是接口，Xerces是这些接口最流行的实现。实际上，Xerces有两个版本:一个来自Apache，另一个内置于Sun/Oracle+JDK中。JDK中的一个是错误的；首选使用Apache中的那个。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1997032|由于您刚刚起步，它可能比DOM和SAX更值得一看。SAX是一个非常低级的接口，它提供了很好的性能，但功能却很少:如果您这样做，您可以期望在您的应用程序中编写相当多的复杂代码。DOM为您提供了一个XML树模型，但是也有更好和更简单的接口来完成同样的任务:+JDOM提供了您所需的一切，并且比DOM更容易使用。|1997033|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

DOM and SAX are interfaces, Xerces is the most popular implementation of these interfaces. There are in fact two versions of Xerces: the one from Apache, and the one built into the Sun/Oracle JDK. The one in the JDK is buggy; use the one from Apache in preference.

Since you are just starting out, it is probably worth looking more widely than DOM and SAX. SAX is a very low-level interface, offering good performance but little functionality: you can expect to write rather a lot of complex code in your application if this is the way you go. DOM presents you with a tree model of XML, but there are much better and simpler interfaces that do the same thing: JDOM offers everything you need and is much easier to use than DOM.

<ol>
<li>I want to parse XML in java. It will be DOM or SAX. Read in a book JAXP is good one. Also when i google out found XERCES/XALAN. Which parser is commonly used? </li>
<li>In SAX Parser if i register for a single element event will the SAX parse stops processing the XML message after encountering the element. Read in a book DOM reads the entire XML and loads into memory even if i want to know single element value.</li>
</ol>

Parsing XML Elements in JAVA

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想在java中解析。这将是DOM或SAX。在一本书中读到JAXP是一本好书。同样，当我搜索出XERCES/XALAN时。哪个解析器是常用的? SAX中的如果注册单个元素事件，SAX解析将在遇到该元素后停止处理该XML消息。读一本书，DOM读取整个XML并加载到内存中，即使我想知道单个元素值。

问用JAVA解析XML元素
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