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分享使用org.apache.xpath.XPathAPI解析XML的名字空间问题，高手请进！
使用org.apache.xpath.XPathAPI的selectNodeList(Node contextNode, java.lang.String str)解析XML，
<a>
<aaa xmlns="http://xxx/xxx">
</aaa>
</a>
当读取<aaa>时，读不到，我测试了一下，将名字空间去掉，就可以读到，请问有解决方法吗？使用XPathAPI。
<a>
<aaa xmlns="http://xxx/xxx">
</aaa>
</a>
当读取<aaa>时，读不到，我测试了一下，将名字空间去掉，就可以读到，请问有解决方法吗？使用XPathAPI。
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孟子E章 2007-08-30
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下面的方法是可以取到的
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="javax.xml.parsers.*"%>
<%@ page import="javax.xml.parsers.DocumentBuilderFactory"%>
<%@ page import="org.apache.xpath.*"%>
<%@ page import="java.io.File"%>
<%@ page import="org.w3c.dom.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body>
<%
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(new File("D:\\Java\\Work\\space\\WebContent\\test\\x.xml"));
NodeList accountNodes = XPathAPI.selectNodeList(doc, "/a/aaa");
for (int accountNodeIndex = 0; accountNodeIndex < accountNodes.getLength(); accountNodeIndex++) {
Element accountElement = (Element) accountNodes.item(accountNodeIndex);
String accountID = accountElement.getTextContent();
out.print(accountID);
}
} catch (Exception ex) {
out.print(ex.getLocalizedMessage());
}
%>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="javax.xml.parsers.*"%>
<%@ page import="javax.xml.parsers.DocumentBuilderFactory"%>
<%@ page import="org.apache.xpath.*"%>
<%@ page import="java.io.File"%>
<%@ page import="org.w3c.dom.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body>
<%
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(new File("D:\\Java\\Work\\space\\WebContent\\test\\x.xml"));
NodeList accountNodes = XPathAPI.selectNodeList(doc, "/a/aaa");
for (int accountNodeIndex = 0; accountNodeIndex < accountNodes.getLength(); accountNodeIndex++) {
Element accountElement = (Element) accountNodes.item(accountNodeIndex);
String accountID = accountElement.getTextContent();
out.print(accountID);
}
} catch (Exception ex) {
out.print(ex.getLocalizedMessage());
}
%>
</body>
</html>
孟子E章 2007-08-30
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名称空间尽管是默认的，但select 的时候不能少
