用SAX 方式解析 XML

最新推荐文章于 2025-08-21 21:36:47 发布

原创最新推荐文章于 2025-08-21 21:36:47 发布 · 428 阅读

1 ·

CC 4.0 BY-SA版权

文章标签：

#string #import #table #file #encoding #xml

XML 专栏收录该内容

3 篇文章

订阅专栏

XML 文件如下：
<?xml version="1.0" encoding="gb2312"?>
<person>
<name> 王小明 </name>
<college> 信息学院 </college>
<telephone>6258113</telephone>
<notes> 男 ,1955 年生 , 博士， 95 年调入海南大学 </notes>
</person>
事件回调类 SAXHandler.java
import java.io.*;
import java.util.Hashtable;
import org.xml.sax.*;
public class SAXHandler extends HandlerBase
{
private Hashtable table = new Hashtable();
private String currentElement = null;
private String currentValue = null;
public void setTable(Hashtable table)
    {
    this.table = table;
    }
public Hashtable getTable()
    {
    return table;
    }
public void startElement(String tag, AttributeList attrs)
throws SAXException
    {
    currentElement = tag;
    }
public void characters(char[] ch, int start, int length)
throws SAXException
    {
    currentValue = new String(ch, start, length);
    }
public void endElement(String name) throws SAXException
    {
    if (currentElement.equals(name))
      table.put(currentElement, currentValue);
    }
}
JSP 内容显示源码 ,SaxXml.jsp:
<HTML>
<HEAD>
<TITLE> 剖析 XML 文件 people.xml</TITLE>
</HEAD>
<BODY>
<%@ page errorPage="ErrPage.jsp"
contentType="text/html;charset=GB2312" %>
<%@ page import="java.io.*" %>
<%@ page import="java.util.Hashtable" %>
<%@ page import="org.w3c.dom.*" %>
<%@ page import="org.xml.sax.*" %>
<%@ page import="javax.xml.parsers.SAXParserFactory" %>
<%@ page import="javax.xml.parsers.SAXParser" %>
<%@ page import="SAXHandler" %>
<%
File file = new File("c://people.xml");
FileReader reader = new FileReader(file);
Parser parser;
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
SAXHandler handler = new SAXHandler();
sp.parse(new InputSource(reader), handler);
Hashtable hashTable = handler.getTable();
out.println("<TABLE BORDER=2><CAPTION> 教师信息表 </CAPTION>");
out.println("<TR><TD> 姓名 </TD>" + "<TD>" +
(String)hashTable.get(new String("name")) + "</TD></TR>");
out.println("<TR><TD> 学院 </TD>" + "<TD>" +
(String)hashTable.get(new String("college"))+"</TD></TR>");
out.println("<TR><TD> 电话 </TD>" + "<TD>" +
(String)hashTable.get(new String("telephone")) + "</TD></TR>");
out.println("<TR><TD> 备注 </TD>" + "<TD>" +
(String)hashTable.get(new String("notes")) + "</TD></TR>");
out.println("</TABLE>");
%>
</BODY>
</HTML>