【发布时间】：2015-02-20 15:07:29
【问题描述】：
我正在对网站进行 HTTP 查询，我得到的响应是 XML 格式的。我想做的是进行多个查询，解析数据并将它们放在 ArrayList 或其他容器中，以便我可以轻松访问每个查询的数据。我一直在使用SAX 来解析响应。我阅读的示例具有如下 XML 格式：
<?xml version="1.0"?>
<company>
<staff>
<firstname>yong</firstname>
<lastname>mook kim</lastname>
<nickname>mkyong</nickname>
<salary>100000</salary>
</staff>
<staff>
<firstname>low</firstname>
<lastname>yin fong</lastname>
<nickname>fong fong</nickname>
<salary>200000</salary>
</staff>
仅通过查看 Internet 上的示例，我就可以很容易地解析这种格式。
但在我的情况下，我需要像这样解析数据：
<?xml version="1.0" encoding="UTF-8"?>
<root response="True">
<movie title="A Good Marriage" year="2014" rated="R" released="03 Oct 2014" runtime="102 min" genre="Thriller" director="Peter Askin" writer="Stephen King (short story)" actors="Joan Allen, Anthony LaPaglia, Stephen Lang, Cara Buono" plot="After 25 years of a good marriage, what will Darcy do once she discovers her husband's sinister secret?" language="English" country="USA" awards="N/A" poster="http://ia.media-imdb.com/images/M/MV5BMTk3MjY2ODgwNl5BMl5BanBnXkFtZTgwMTQ0Mjg0MjE@._V1_SX300.jpg" metascore="43" imdbRating="5.1" imdbVotes="2,016" imdbID="tt2180994" type="movie"/>
</root>
从这个响应中，我想将所有东西解析到某个容器中，所以它很容易使用。我还在学习东西，也许有人可以在这里帮助我，指出正确的方向？ :) 查询不是问题，但解析和存储数据才是问题。
编辑：所以更清楚地说，我的问题是来自服务器的响应不像第一个示例那样采用整洁的 XML 格式，您可以看到它是这样的：
<movie title="A Good Marriage" year="2014" rated="R" released="03 Oct 2014" runtime="102 min" genre="Thriller" director="Peter Askin" writer="Stephen King (short story)" actors="Joan Allen, Anthony LaPaglia, Stephen Lang, Cara Buono" plot="After 25 years of a good marriage, what will Darcy do once she discovers her husband's sinister secret?" language="English" country="USA" awards="N/A" poster="http://ia.media-imdb.com/images/M/MV5BMTk3MjY2ODgwNl5BMl5BanBnXkFtZTgwMTQ0Mjg0MjE@._V1_SX300.jpg" metascore="43" imdbRating="5.1" imdbVotes="2,016" imdbID="tt2180994" type="movie"/>
当我运行我的代码时，它不会打印出任何东西，但是当我像这样手动修改 XML 时：
<?xml version="1.0" encoding="UTF-8"?>
<root response="True">
<movie> title="Oblivion" year="2013" rated="PG-13" released="19 Apr 2013" runtime="124 min" genre="Action, Adventure, Mystery" director="Joseph Kosinski" writer="Karl Gajdusek (screenplay), Michael Arndt (screenplay), Joseph Kosinski (graphic novel original story)" actors="Tom Cruise, Morgan Freeman, Olga Kurylenko, Andrea Riseborough" plot="A veteran assigned to extract Earth's remaining resources begins to question what he knows about his mission and himself." language="English" country="USA" awards="10 nominations." poster="http://ia.media-imdb.com/images/M/MV5BMTQwMDY0MTA4MF5BMl5BanBnXkFtZTcwNzI3MDgxOQ@@._V1_SX300.jpg" metascore="54" imdbRating="7.0" imdbVotes="307,845" imdbID="tt1483013" type="movie"/>
</movie>
</root>
所以我为电影元素添加了结束标签>，并在最后添加了结束标签</movie>，我的程序将其打印为：
Movie : title="Oblivion" year="2013" rated="PG-13" released="19 Apr 2013" runtime="124 min" genre="Action, Adventure, Mystery" director="Joseph Kosinski" writer="Karl Gajdusek (screenplay), Michael Arndt (screenplay), Joseph Kosinski (graphic novel original story)" actors="Tom Cruise, Morgan Freeman, Olga Kurylenko, Andrea Riseborough" plot="A veteran assigned to extract Earth's remaining resources begins to question what he knows about his mission and himself." language="English" country="USA" awards="10 nominations." poster="http://ia.media-imdb.com/images/M/MV5BMTQwMDY0MTA4MF5BMl5BanBnXkFtZTcwNzI3MDgxOQ@@._V1_SX300.jpg" metascore="54" imdbRating="7.0" imdbVotes="307,845" imdbID="tt1483013" type="movie"/>
所以基本上我现在使用的代码读取<movie>和</movie>之间的所有内容，问题是来自服务器的原始响应使电影标签像这样打开：<movie title="Oblivion"...并且没有</movie>标记。
我一直在为此苦苦挣扎，希望有人能理解我令人困惑的解释！目前我的解析器代码如下所示：
public void getXml(){
try {
// obtain and configure a SAX based parser
SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
// obtain object for SAX parser
SAXParser saxParser = saxParserFactory.newSAXParser();
// default handler for SAX handler class
// all three methods are written in handler's body
DefaultHandler defaultHandler = new DefaultHandler(){
String movieTag="close";
// this method is called every time the parser gets an open tag '<'
// identifies which tag is being open at time by assigning an open flag
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
if(qName.equalsIgnoreCase("MOVIE")) {
movieTag = "open";
}
}
// prints data stored in between '<' and '>' tags
public void characters(char ch[], int start, int length)
throws SAXException {
if(movieTag.equals("open")) {
System.out.println("Movie : " + new String(ch, start, length));
}
}
// calls by the parser whenever '>' end tag is found in xml
// makes tags flag to 'close'
public void endElement(String uri, String localName, String qName)
throws SAXException {
if(qName.equalsIgnoreCase("MOVIE")) {
movieTag = "close";
}
}
};
// parse the XML specified in the given path and uses supplied
// handler to parse the document
// this calls startElement(), endElement() and character() methods
// accordingly
saxParser.parse("xml/testi.xml", defaultHandler);
} catch (Exception e) {
e.printStackTrace();
}
}
请任何人，非常感谢您的帮助..
【问题讨论】：
-
仍在为此苦苦挣扎，不胜感激。 :)
-
好的，使用 DOM-parser 解决了。