Simple Java parsing XML using sax

1. Create a new Saxtest class, Inherit the import Org.xml.sax.helpers.DefaultHandler class

1  PackageCom.qiao.SrpingSource;2 3 Importorg.xml.sax.Attributes;4 Importorg.xml.sax.SAXException;5 ImportOrg.xml.sax.helpers.DefaultHandler;6 7  Public classSaxtestextendsDefaultHandler {8 9     PrivateString Currenttag;Ten      One     /** A * Start reading documents, usually do some initialization work -      */ - @Override the      Public voidStartdocument ()throwssaxexception { -SYSTEM.OUT.PRINTLN ("----Start Document---"); -     } -  +     /** - * Start reading nodes +      */ A @Override at      Public voidstartelement (String uri, String localname, String qName, -Attributes Attributes)throwssaxexception { -  -System.out.println (qname+ "--"); -currenttag=QName; -         if(Qname.equals ("name")) { in             //read the value in the property -             if(Attributes! =NULL) { to                  for(inti = 0; I < attributes.getlength (); i++) { +SYSTEM.OUT.PRINTLN ("SSS" +attributes.getqname (i) + "" +Attributes.getvalue (i)); -                 } the             } *         } $ Panax Notoginseng     } -  the     /** + * Read the text document in the node A      */ the @Override +      Public voidCharacters (Char[] ch,intStartintlength) -             throwssaxexception { $         //gets the contents of its node when the current node is called name $         if(Currenttag.equals ("name")){ -String content =NewString (ch,start,length); - System.out.println (content); the              -         }Wuyi  the     } -  Wu     /** - * At the end of the Read node About      */ $ @Override -      Public voidendElement (String uri, String localname, string qName) -             throwssaxexception { -     } A  +     /** the * When reading the document introduction -      */ $ @Override the      Public voidEnddocument ()throwssaxexception { the  theSystem.out.println (">> enddocument <<"); the  -     } in}

2.xml file is

　　

1 <?XML version= "1.0" encoding= "UTF-8"?>2 <class>3     <StuID= "001">4         <name>Allen</name>5         <Sex>Man</Sex>6         < Age>20</ Age>7     </Stu>8     <StuID= "002">9         <name>Namy</name>Ten         <Sex>Woman</Sex> One         < Age>18</ Age> A     </Stu> -     <StuID= "003"> -         <name>Lufy</name> the         <Sex>Man</Sex> -         < Age>18</ Age> -     </Stu> - </class>

3. Calling methods

　　

1 @Test2      Public voidTest ()throwsparserconfigurationexception, saxexception{3         4SAXParserFactory factory =saxparserfactory.newinstance ();5SAXParser parser =Factory.newsaxparser ();6         7Saxtest handler =Newsaxtest ();8         9         Try {TenParser.parse (NewFile ("D:/eclipse/workspace/springsource/src/main/resource/test.xml"), handler); One              A}Catch(IOException e) { - e.printstacktrace (); -         } the          -}

4. Running Results

----Start Document---
Class--
Stu--
Name--
Allen//The value of the name node read to

Sex--
Age--
Stu--
Name--
Namy//The value of the name node read to

Sex--
Age--
Stu--
Name--
Lufy//The value of the name node read to

Sex--
Age--
>> enddocument <<

Simple Java parsing XML using sax