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Java에서 XML 파일을 읽는 방법

Java에서 XML 파일을 읽는 것은 .docx 및 .txt와 같은 다른 파일을 읽는 것과 많이 다릅니다. XML 파일에는 태그 사이에 데이터가 포함되어 있기 때문입니다. Java는 XML 파일을 구문 분석하는 다양한 방법을 제공합니다. Java에는 XML 파일을 구문 분석하는 두 가지 구문 분석기가 있습니다.

  • 자바 DOM 파서
  • 자바 옳은 파서

Java DOM 파서

그만큼 DOM API XML 파일을 읽고 쓰는 클래스를 제공합니다. DOM API를 사용하여 노드를 생성, 삭제, 수정 및 재배치할 수 있습니다. DOM 파서는 전체 XML 파일을 구문 분석하고 DOM 기억 속의 물건. XML 파일을 모델링합니다. 트리 구조 쉽게 탐색하고 조작할 수 있습니다. DOM에서 XML 파일의 모든 내용은 마디 . 노드는 XML 파일의 구성 요소를 나타냅니다. DOM 파서는 느린 진행 중이며 점유하고 있습니다. 많은 기억 XML 파일을 메모리에 로드할 때.

Java에서 XML 파일을 읽는 프로세스를 따라야 합니다.

    XML 파일 인스턴스화:DOM 파서는 XML 파일을 메모리에 로드하고 모든 태그를 요소로 간주합니다.루트 노드 가져오기:문서 클래스는 다음을 제공합니다. getDocumentElement() 루트 노드와 XML 파일의 요소를 가져오는 메서드입니다.모든 노드를 가져옵니다.그만큼 getElementByTagName() 메소드는 XML 파일에서 특정 태그 이름을 모두 검색합니다. 어디 ELEMENT_NODE type은 하위 요소가 있는 텍스트가 아닌 노드를 나타냅니다. 루트 노드를 포함하여 처음부터 모든 노드에 액세스해야 하는 경우 getChildElement() 메서드를 재귀적으로 호출할 수 있습니다.텍스트 값으로 노드 가져오기:우리는 사용할 수 있습니다 getElementByTextValue() 해당 값으로 노드를 검색하는 방법입니다.속성 값으로 노드 가져오기:특정 속성 값으로 노드를 검색하려면 getAttribute() 메서드와 함께 getElementByTagName() 메서드를 사용할 수 있습니다.

Eclipse를 사용하여 Java에서 XML 파일을 읽는 단계

1 단계: 간단한 만들기 자바 프로젝트.

2 단계: 클래스 파일을 만들고 클래스 파일 이름을 제공합니다. 우리는 이름으로 클래스 파일을 만들었습니다. XML파일 읽기예1 .

3단계: 다음 코드를 작성하세요.

4단계: 다운로드 dom-2.3.0-jaxb-1.0.6.jar 파일: 여기를 클릭하세요...

5단계: 만들기 lib 프로젝트의 폴더입니다.

6단계: 복사 dom-2.3.0-jaxb-1.0.6.jar 파일을 lib 폴더에 붙여넣으세요.

7단계: 설정 수업 경로 :

프로젝트를 마우스 오른쪽 버튼으로 클릭->빌드 경로->빌드 경로 구성->외부 JAR 추가->JAR 파일 선택->열기 버튼 클릭->적용 및 닫기를 클릭합니다.

8단계: 만들기 XML 파일. 이름이 있는 XML 파일을 만들었습니다. XML파일.xml 그리고 거기에 다음 데이터를 씁니다.

이중 연결 리스트

9단계: 프로젝트를 실행합니다.

XML 파일 생성: XML파일.xml

 101 Naman Kumar Math 83 102 Kapil Kumar Chemistry 60 103 Harsh Singh English 70 104 Jitesh Singh Physics 76 

DOM Parser를 사용하여 XML 파일을 읽는 예

 import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.DocumentBuilder; import org.w3c.dom.Document; import org.w3c.dom.NodeList; import org.w3c.dom.Node; import org.w3c.dom.Element; import java.io.File; public class ReadXMLFileExample1 { public static void main(String argv[]) { try { //creating a constructor of file class and parsing an XML file File file = new File(&apos;F:\XMLFile.xml&apos;); //an instance of factory that gives a document builder DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); //an instance of builder to parse the specified xml file DocumentBuilder db = dbf.newDocumentBuilder(); Document doc = db.parse(file); doc.getDocumentElement().normalize(); System.out.println(&apos;Root element: &apos; + doc.getDocumentElement().getNodeName()); NodeList nodeList = doc.getElementsByTagName(&apos;student&apos;); // nodeList is not iterable, so we are using for loop for (int itr = 0; itr <nodelist.getlength(); itr++) { node system.out.println('
node name :' + node.getnodename()); if (node.getnodetype()="=" node.element_node) element eelement="(Element)" node; system.out.println('student id: '+ eelement.getelementsbytagname('id').item(0).gettextcontent()); system.out.println('first name: eelement.getelementsbytagname('firstname').item(0).gettextcontent()); system.out.println('last eelement.getelementsbytagname('lastname').item(0).gettextcontent()); system.out.println('subject: eelement.getelementsbytagname('subject').item(0).gettextcontent()); system.out.println('marks: eelement.getelementsbytagname('marks').item(0).gettextcontent()); } catch (exception e) e.printstacktrace(); < pre> <p> <strong>Output:</strong> </p> <pre> Root element: class Node Name: student Student id: 101 First Name: Naman Last Name: Kumar Subject: Math Marks: 83 Node Name: student Student id: 102 First Name: Kapil Last Name: Kumar Subject: Chemistry Marks: 60 Node Name: student Student id: 103 First Name: Harsh Last Name: Singh Subject: English Marks: 70 Node Name: student Student id: 104 First Name: Jitesh Last Name: Singh Subject: Physics Marks: 76 </pre> <p>Let&apos;s see another example of reading xml file.</p> <p> <strong>Example of reading XML file using DOM Parser</strong> </p> <p>The following example reads the same XML file <strong>XMLFile.xml</strong> , and showing that how to loop the node one by one. It prints the node value, name and attribute if any.</p> <p> <strong>Example</strong> </p> <pre> import java.io.File; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class ReadXMLFileExample2 { public static void main(String[] args) { try { File file = new File(&apos;F:\XMLFile.xml&apos;); DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); Document document = documentBuilder.parse(file); System.out.println(&apos;Root element: &apos;+ document.getDocumentElement().getNodeName()); if (document.hasChildNodes()) { printNodeList(document.getChildNodes()); } } catch (Exception e) { System.out.println(e.getMessage()); } } private static void printNodeList(NodeList nodeList) { for (int count = 0; count <nodelist.getlength(); count++) { node elemnode="nodeList.item(count);" if (elemnode.getnodetype()="=" node.element_node) get name and value system.out.println('
node [open]'); system.out.println('node content=" + elemNode.getTextContent()); if (elemNode.hasAttributes()) { NamedNodeMap nodeMap = elemNode.getAttributes(); for (int i = 0; i &lt; nodeMap.getLength(); i++) { Node node = nodeMap.item(i); System.out.println(" attr : ' + node.getnodename()); system.out.println('attr node.getnodevalue()); } (elemnode.haschildnodes()) recursive call the has child nodes printnodelist(elemnode.getchildnodes()); [close]'); < pre> <p> <strong>Output:</strong> </p> <pre> Root element: class Node Name =class [OPEN] Node Content = 101 Naman Kumar Maths 83 102 Kapil Kumar Chemistry 60 103 Harsh Singh English 70 104 Jitesh Singh Physics 76 Node Name =student [OPEN] Node Content = 101 Naman Kumar Maths 83 Node Name =id [OPEN] Node Content =101 Node Name =id [CLOSE] Node Name =firstname [OPEN] Node Content =Naman Node Name =firstname [CLOSE] Node Name =lastname [OPEN] Node Content =Kumar Node Name =lastname [CLOSE] Node Name =subject [OPEN] Node Content =Math Node Name =subject [CLOSE] Node Name =marks [OPEN] Node Content =83 Node Name =marks [CLOSE] Node Name =student [CLOSE] Node Name =student [OPEN] Node Content = 102 Kapil Kumar Chemistry 60 Node Name =id [OPEN] Node Content =102 Node Name =id [CLOSE] Node Name =firstname [OPEN] Node Content =Kapil Node Name =firstname [CLOSE] Node Name =lastname [OPEN] Node Content =Kumar Node Name =lastname [CLOSE] Node Name =subject [OPEN] Node Content =Chemistry Node Name =subject [CLOSE] Node Name =marks [OPEN] Node Content =60 Node Name =marks [CLOSE] Node Name =student [CLOSE] Node Name =student [OPEN] Node Content = 103 Harsh Singh English 70 Node Name =id [OPEN] Node Content =103 Node Name =id [CLOSE] Node Name =firstname [OPEN] Node Content =Harsh Node Name =firstname [CLOSE] Node Name =lastname [OPEN] Node Content =Singh Node Name =lastname [CLOSE] Node Name =subject [OPEN] Node Content =English Node Name =subject [CLOSE] Node Name =marks [OPEN] Node Content =70 Node Name =marks [CLOSE] Node Name =student [CLOSE] Node Name =student [OPEN] Node Content = 104 Jitesh Singh Physics 76 Node Name =id [OPEN] Node Content =104 Node Name =id [CLOSE] Node Name =firstname [OPEN] Node Content =Jitesh Node Name =firstname [CLOSE] Node Name =lastname [OPEN] Node Content =Singh Node Name =lastname [CLOSE] Node Name =subject [OPEN] Node Content =Physics Node Name =subject [CLOSE] Node Name =marks [OPEN] Node Content =76 Node Name =marks [CLOSE] Node Name =student [CLOSE] Node Name =class [CLOSE] </pre> <h2>Java SAX Parser</h2> <p>Java SAX parser stands for <strong>Simple API</strong> for <strong>XML</strong> . SAX parser parses an XML file <strong>line by line</strong> . It triggers events when it encounters the opening tag, closing tag, and character data in an xml file. SAX parser is also called the <strong>event-based parser</strong> .</p> <p>SAX parser does not load any XML file into memory. It does not create any object representation of the XML document. SAX parser uses call back function to inform clients of the XML document structure. It is <strong>faster</strong> and uses <strong>less memory</strong> than DOM parser.</p> <p>SAX is a <strong>streaming interface</strong> for XML, which means that XML file parses in sequential order starting at the top of the document, and ending with the closing of the root element.</p> <p> <strong>Example of reading XML file using SAX parser</strong> </p> <pre> import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; public class ReadXMLFileExample3 { public static void main(String args[]) { try { SAXParserFactory factory = SAXParserFactory.newInstance(); SAXParser saxParser = factory.newSAXParser(); DefaultHandler handler = new DefaultHandler() { boolean id = false; boolean firstname = false; boolean lastname = false; boolean subject = false; boolean marks = false; //parser starts parsing a specific element inside the document public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { System.out.println(&apos;Start Element :&apos; + qName); if(qName.equalsIgnoreCase(&apos;Id&apos;)) { id=true; } if (qName.equalsIgnoreCase(&apos;FIRSTNAME&apos;)) { firstname = true; } if (qName.equalsIgnoreCase(&apos;LASTNAME&apos;)) { lastname = true; } if (qName.equalsIgnoreCase(&apos;SUBJECT&apos;)) { subject = true; } if (qName.equalsIgnoreCase(&apos;MARKS&apos;)) { marks = true; } } //parser ends parsing the specific element inside the document public void endElement(String uri, String localName, String qName) throws SAXException { System.out.println(&apos;End Element:&apos; + qName); } //reads the text value of the currently parsed element public void characters(char ch[], int start, int length) throws SAXException { if (id) { System.out.println(&apos;ID : &apos; + new String(ch, start, length)); id = false; } if (firstname) { System.out.println(&apos;First Name: &apos; + new String(ch, start, length)); firstname = false; } if (lastname) { System.out.println(&apos;Last Name: &apos; + new String(ch, start, length)); lastname = false; } if (subject) { System.out.println(&apos;Subject: &apos; + new String(ch, start, length)); subject = false; } if (marks) { System.out.println(&apos;Marks : &apos; + new String(ch, start, length)); marks = false; } } }; saxParser.parse(&apos;F:\XMLFile.xml&apos;, handler); } catch (Exception e) { e.printStackTrace(); } } } </pre> <p> <strong>Output:</strong> </p> <pre> Start Element: class Start Element: student Start Element: id ID: 101 End Element: id Start Element: firstname First Name: Naman End Element: firstname Start Element: lastname Last Name: Kumar End Element: lastname Start Element: subject Subject: Math End Element: subject Start Element: marks Marks: 83 End Element: marks End Element: student Start Element: student Start Element: id ID: 102 End Element: id Start Element: firstname First Name: Kapil End Element: firstname Start Element: lastname Last Name: Kumar End Element: lastname Start Element: subject Subject: Chemistry End Element: subject Start Element: marks Marks: 60 End Element: marks End Element: student Start Element: student Start Element: id ID: 103 End Element: id Start Element: firstname First Name: Harsh End Element: firstname Start Element: lastname Last Name: Singh End Element: lastname Start Element: subject Subject: English End Element: subject Start Element: marks Marks: 70 End Element: marks End Element: student Start Element: student Start Element: id ID: 104 End Element: id Start Element: firstname First Name: Jitesh End Element: firstname Start Element: lastname Last Name: Singh End Element: lastname Start Element: subject Subject: Physics End Element: subject Start Element: marks Marks: 76 End Element: marks End Element: student End Element: class </pre> <hr></nodelist.getlength();></pre></nodelist.getlength();>

xml 파일을 읽는 또 다른 예를 살펴보겠습니다.

DOM Parser를 사용하여 XML 파일을 읽는 예

다음 예에서는 동일한 XML 파일을 읽습니다. XML파일.xml , 노드를 하나씩 반복하는 방법을 보여줍니다. 노드 값, 이름 및 속성이 있는 경우 이를 인쇄합니다.

 import java.io.File; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class ReadXMLFileExample2 { public static void main(String[] args) { try { File file = new File(&apos;F:\XMLFile.xml&apos;); DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); Document document = documentBuilder.parse(file); System.out.println(&apos;Root element: &apos;+ document.getDocumentElement().getNodeName()); if (document.hasChildNodes()) { printNodeList(document.getChildNodes()); } } catch (Exception e) { System.out.println(e.getMessage()); } } private static void printNodeList(NodeList nodeList) { for (int count = 0; count <nodelist.getlength(); count++) { node elemnode="nodeList.item(count);" if (elemnode.getnodetype()="=" node.element_node) get name and value system.out.println(\'
node [open]\'); system.out.println(\'node content=" + elemNode.getTextContent()); if (elemNode.hasAttributes()) { NamedNodeMap nodeMap = elemNode.getAttributes(); for (int i = 0; i &lt; nodeMap.getLength(); i++) { Node node = nodeMap.item(i); System.out.println(" attr : \' + node.getnodename()); system.out.println(\'attr node.getnodevalue()); } (elemnode.haschildnodes()) recursive call the has child nodes printnodelist(elemnode.getchildnodes()); [close]\'); < pre> <p> <strong>Output:</strong> </p> <pre> Root element: class Node Name =class [OPEN] Node Content = 101 Naman Kumar Maths 83 102 Kapil Kumar Chemistry 60 103 Harsh Singh English 70 104 Jitesh Singh Physics 76 Node Name =student [OPEN] Node Content = 101 Naman Kumar Maths 83 Node Name =id [OPEN] Node Content =101 Node Name =id [CLOSE] Node Name =firstname [OPEN] Node Content =Naman Node Name =firstname [CLOSE] Node Name =lastname [OPEN] Node Content =Kumar Node Name =lastname [CLOSE] Node Name =subject [OPEN] Node Content =Math Node Name =subject [CLOSE] Node Name =marks [OPEN] Node Content =83 Node Name =marks [CLOSE] Node Name =student [CLOSE] Node Name =student [OPEN] Node Content = 102 Kapil Kumar Chemistry 60 Node Name =id [OPEN] Node Content =102 Node Name =id [CLOSE] Node Name =firstname [OPEN] Node Content =Kapil Node Name =firstname [CLOSE] Node Name =lastname [OPEN] Node Content =Kumar Node Name =lastname [CLOSE] Node Name =subject [OPEN] Node Content =Chemistry Node Name =subject [CLOSE] Node Name =marks [OPEN] Node Content =60 Node Name =marks [CLOSE] Node Name =student [CLOSE] Node Name =student [OPEN] Node Content = 103 Harsh Singh English 70 Node Name =id [OPEN] Node Content =103 Node Name =id [CLOSE] Node Name =firstname [OPEN] Node Content =Harsh Node Name =firstname [CLOSE] Node Name =lastname [OPEN] Node Content =Singh Node Name =lastname [CLOSE] Node Name =subject [OPEN] Node Content =English Node Name =subject [CLOSE] Node Name =marks [OPEN] Node Content =70 Node Name =marks [CLOSE] Node Name =student [CLOSE] Node Name =student [OPEN] Node Content = 104 Jitesh Singh Physics 76 Node Name =id [OPEN] Node Content =104 Node Name =id [CLOSE] Node Name =firstname [OPEN] Node Content =Jitesh Node Name =firstname [CLOSE] Node Name =lastname [OPEN] Node Content =Singh Node Name =lastname [CLOSE] Node Name =subject [OPEN] Node Content =Physics Node Name =subject [CLOSE] Node Name =marks [OPEN] Node Content =76 Node Name =marks [CLOSE] Node Name =student [CLOSE] Node Name =class [CLOSE] </pre> <h2>Java SAX Parser</h2> <p>Java SAX parser stands for <strong>Simple API</strong> for <strong>XML</strong> . SAX parser parses an XML file <strong>line by line</strong> . It triggers events when it encounters the opening tag, closing tag, and character data in an xml file. SAX parser is also called the <strong>event-based parser</strong> .</p> <p>SAX parser does not load any XML file into memory. It does not create any object representation of the XML document. SAX parser uses call back function to inform clients of the XML document structure. It is <strong>faster</strong> and uses <strong>less memory</strong> than DOM parser.</p> <p>SAX is a <strong>streaming interface</strong> for XML, which means that XML file parses in sequential order starting at the top of the document, and ending with the closing of the root element.</p> <p> <strong>Example of reading XML file using SAX parser</strong> </p> <pre> import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; public class ReadXMLFileExample3 { public static void main(String args[]) { try { SAXParserFactory factory = SAXParserFactory.newInstance(); SAXParser saxParser = factory.newSAXParser(); DefaultHandler handler = new DefaultHandler() { boolean id = false; boolean firstname = false; boolean lastname = false; boolean subject = false; boolean marks = false; //parser starts parsing a specific element inside the document public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { System.out.println(&apos;Start Element :&apos; + qName); if(qName.equalsIgnoreCase(&apos;Id&apos;)) { id=true; } if (qName.equalsIgnoreCase(&apos;FIRSTNAME&apos;)) { firstname = true; } if (qName.equalsIgnoreCase(&apos;LASTNAME&apos;)) { lastname = true; } if (qName.equalsIgnoreCase(&apos;SUBJECT&apos;)) { subject = true; } if (qName.equalsIgnoreCase(&apos;MARKS&apos;)) { marks = true; } } //parser ends parsing the specific element inside the document public void endElement(String uri, String localName, String qName) throws SAXException { System.out.println(&apos;End Element:&apos; + qName); } //reads the text value of the currently parsed element public void characters(char ch[], int start, int length) throws SAXException { if (id) { System.out.println(&apos;ID : &apos; + new String(ch, start, length)); id = false; } if (firstname) { System.out.println(&apos;First Name: &apos; + new String(ch, start, length)); firstname = false; } if (lastname) { System.out.println(&apos;Last Name: &apos; + new String(ch, start, length)); lastname = false; } if (subject) { System.out.println(&apos;Subject: &apos; + new String(ch, start, length)); subject = false; } if (marks) { System.out.println(&apos;Marks : &apos; + new String(ch, start, length)); marks = false; } } }; saxParser.parse(&apos;F:\XMLFile.xml&apos;, handler); } catch (Exception e) { e.printStackTrace(); } } } </pre> <p> <strong>Output:</strong> </p> <pre> Start Element: class Start Element: student Start Element: id ID: 101 End Element: id Start Element: firstname First Name: Naman End Element: firstname Start Element: lastname Last Name: Kumar End Element: lastname Start Element: subject Subject: Math End Element: subject Start Element: marks Marks: 83 End Element: marks End Element: student Start Element: student Start Element: id ID: 102 End Element: id Start Element: firstname First Name: Kapil End Element: firstname Start Element: lastname Last Name: Kumar End Element: lastname Start Element: subject Subject: Chemistry End Element: subject Start Element: marks Marks: 60 End Element: marks End Element: student Start Element: student Start Element: id ID: 103 End Element: id Start Element: firstname First Name: Harsh End Element: firstname Start Element: lastname Last Name: Singh End Element: lastname Start Element: subject Subject: English End Element: subject Start Element: marks Marks: 70 End Element: marks End Element: student Start Element: student Start Element: id ID: 104 End Element: id Start Element: firstname First Name: Jitesh End Element: firstname Start Element: lastname Last Name: Singh End Element: lastname Start Element: subject Subject: Physics End Element: subject Start Element: marks Marks: 76 End Element: marks End Element: student End Element: class </pre> <hr></nodelist.getlength();>

자바 SAX 파서

Java SAX 파서는 다음을 의미합니다. 간단한 API ~을 위한 XML . SAX 파서가 XML 파일을 구문 분석합니다. 한 줄씩 . xml 파일에서 여는 태그, 닫는 태그 및 문자 데이터가 발견되면 이벤트를 트리거합니다. SAX 파서는 SAX 파서라고도 불린다. 이벤트 기반 파서 .

SAX 파서는 XML 파일을 메모리에 로드하지 않습니다. XML 문서의 개체 표현을 생성하지 않습니다. SAX 파서는 콜백 기능을 사용하여 클라이언트에게 XML 문서 구조를 알립니다. 그것은 더 빠르게 그리고 사용 적은 메모리 DOM 파서보다.

SAX는 스트리밍 인터페이스 XML의 경우 이는 XML 파일이 문서 상단부터 시작하여 루트 요소를 닫는 순서로 끝나는 순서대로 구문 분석함을 의미합니다.

SAX 파서를 사용하여 XML 파일을 읽는 예

 import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; public class ReadXMLFileExample3 { public static void main(String args[]) { try { SAXParserFactory factory = SAXParserFactory.newInstance(); SAXParser saxParser = factory.newSAXParser(); DefaultHandler handler = new DefaultHandler() { boolean id = false; boolean firstname = false; boolean lastname = false; boolean subject = false; boolean marks = false; //parser starts parsing a specific element inside the document public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { System.out.println(&apos;Start Element :&apos; + qName); if(qName.equalsIgnoreCase(&apos;Id&apos;)) { id=true; } if (qName.equalsIgnoreCase(&apos;FIRSTNAME&apos;)) { firstname = true; } if (qName.equalsIgnoreCase(&apos;LASTNAME&apos;)) { lastname = true; } if (qName.equalsIgnoreCase(&apos;SUBJECT&apos;)) { subject = true; } if (qName.equalsIgnoreCase(&apos;MARKS&apos;)) { marks = true; } } //parser ends parsing the specific element inside the document public void endElement(String uri, String localName, String qName) throws SAXException { System.out.println(&apos;End Element:&apos; + qName); } //reads the text value of the currently parsed element public void characters(char ch[], int start, int length) throws SAXException { if (id) { System.out.println(&apos;ID : &apos; + new String(ch, start, length)); id = false; } if (firstname) { System.out.println(&apos;First Name: &apos; + new String(ch, start, length)); firstname = false; } if (lastname) { System.out.println(&apos;Last Name: &apos; + new String(ch, start, length)); lastname = false; } if (subject) { System.out.println(&apos;Subject: &apos; + new String(ch, start, length)); subject = false; } if (marks) { System.out.println(&apos;Marks : &apos; + new String(ch, start, length)); marks = false; } } }; saxParser.parse(&apos;F:\XMLFile.xml&apos;, handler); } catch (Exception e) { e.printStackTrace(); } } } 

산출:

 Start Element: class Start Element: student Start Element: id ID: 101 End Element: id Start Element: firstname First Name: Naman End Element: firstname Start Element: lastname Last Name: Kumar End Element: lastname Start Element: subject Subject: Math End Element: subject Start Element: marks Marks: 83 End Element: marks End Element: student Start Element: student Start Element: id ID: 102 End Element: id Start Element: firstname First Name: Kapil End Element: firstname Start Element: lastname Last Name: Kumar End Element: lastname Start Element: subject Subject: Chemistry End Element: subject Start Element: marks Marks: 60 End Element: marks End Element: student Start Element: student Start Element: id ID: 103 End Element: id Start Element: firstname First Name: Harsh End Element: firstname Start Element: lastname Last Name: Singh End Element: lastname Start Element: subject Subject: English End Element: subject Start Element: marks Marks: 70 End Element: marks End Element: student Start Element: student Start Element: id ID: 104 End Element: id Start Element: firstname First Name: Jitesh End Element: firstname Start Element: lastname Last Name: Singh End Element: lastname Start Element: subject Subject: Physics End Element: subject Start Element: marks Marks: 76 End Element: marks End Element: student End Element: class