本文共 3679 字，大约阅读时间需要 12 分钟。

将所有文件放在包下即可运行。

解析过程：

Students.xml

   
   	
    		
     
      王同
     		
     
      java
     		
     
      89
     	
    	
    		
     
      李佳
     		
     
      sql
     		
     
      58
     	
    
   

Student.java

package sax;public class Student {	private String name;	private String course;	private int score;	private int id;	public Student() {	}	public Student(String name, String course, int score, int id) {		super();		this.name = name;		this.course = course;		this.score = score;		this.id = id;	}	public String getName() {		return name;	}	public void setName(String name) {		this.name = name;	}	public String getCourse() {		return course;	}	public void setCourse(String course) {		this.course = course;	}	public int getScore() {		return score;	}	public void setScore(int score) {		this.score = score;	}	public int getId() {		return id;	}	public void setId(int id) {		this.id = id;	}}

parse.java

package sax;import java.io.File;import java.io.IOException;import java.util.List;import javax.xml.parsers.ParserConfigurationException;import javax.xml.parsers.SAXParser;import javax.xml.parsers.SAXParserFactory;import org.xml.sax.SAXException;public class parse {	public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException{		//1.获取解析工厂		SAXParserFactory factory=SAXParserFactory.newInstance();		//2.从解析工厂获得解析器		SAXParser parse=factory.newSAXParser();		//3.加载文档Document 注册处理器				//4.编写处理器		StudentHandler handler=new StudentHandler();				//此写法针对并发操作，正常写xml路径即可		parse.parse(Thread.currentThread().getContextClassLoader()				.getResourceAsStream("sax/Student.xml"),handler);				System.out.println("\n");		List 
   
     students = handler.getStudents();		for(Student s:students){			System.out.println(s.getName()+"-->"+s.getCourse()+"-->"+s.getScore());		}		}	}
   

StudentHandler.java

package sax;/** * 处理器 */import java.util.ArrayList;import java.util.List;import org.dom4j.tree.DefaultAttribute;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class StudentHandler extends DefaultHandler {	private List
   
     students;	private Student student;	private String tag; // 记录标签名	@Override	public void startDocument() throws SAXException {		students = new ArrayList
    
     ();	}	// qName:标签名	// attributes:属性对象	@Override	public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {		if (qName != null) {			tag = qName;		}		if (qName != null && qName.equals("student")) {			student = new Student();			student.setId(Integer.parseInt(attributes.getValue("id")));			System.out.print("<" + qName + " " + attributes.getQName(0) + "=" + attributes.getValue("id") + ">");		} else {			System.out.print("<" + qName + ">");		}	}	// 文本信息	@Override	public void characters(char[] ch, int start, int length) throws SAXException {		String str = new String(ch, start, length);		if (null != tag && tag.equals("name")) {			student.setName(str);		} else if (null != tag && tag.equals("course")) {			student.setCourse(str);		} else if (null != tag && tag.equals("score")) {			Integer score = Integer.valueOf(str);			student.setScore(score);		}		System.out.print(str);	}	// 以“/”位结束标志	@Override	public void endElement(String uri, String localName, String qName) throws SAXException {		System.out.print("
     ");		if (qName.equals("student")) {			this.students.add(student);		}		tag = null;	}	@Override	public void endDocument() throws SAXException {	}	public List
     
       getStudents() {		return students;	}	public void setStudents(List
      
        students) {		this.students = students;	}}
      
     
    
   

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