Java使用pull解析xml文件
使用pull解析xml需要依赖：kxml2-2.3.0.jar和xmlpull_1_1_3_4c.jar
xml文件结构如下：
1.0" encoding="UTF-8"?>reader” cardType=“ Data“>
<DependedCard> <Card name="<span style="color: #8b0000">Handler</span>" slotNo="<span style="color: #8b0000">2</span>" rate="<span style="color: #8b0000">9600</span>"></Card> </DependedCard> <CardInfo name="<span style="color: #8b0000">信息</span>" slotNo="<span style="color: #8b0000">1</span>" rate="<span style="color: #8b0000">9600</span>"> <Context <span style="color: #0000ff">class</span>="<span style="color: #8b0000">MF</span>" id="<span style="color: #8b0000">3F00</span>"> <Section <span style="color: #0000ff">class</span>="<span style="color: #8b0000">KEY</span>" id="<span style="color: #8b0000">0000</span>" size="<span style="color: #8b0000"></span>" index="<span style="color: #8b0000"></span>"> </Section> <Section <span style="color: #0000ff">class</span>="<span style="color: #8b0000">INFO_FILE</span>" id="<span style="color: #8b0000">0015</span>" size="<span style="color: #8b0000">08</span>" index="<span style="color: #8b0000"></span>"> </Section> <Section <span style="color: #0000ff">class</span>="<span style="color: #8b0000">DFDF</span>" id="<span style="color: #8b0000">1001</span>" size="<span style="color: #8b0000"></span>" index="<span style="color: #8b0000">0</span>"> <Element description="<span style="color: #8b0000">文件</span>" <span style="color: #0000ff">class</span>="<span style="color: #8b0000">KEY</span>" id="<span style="color: #8b0000">0000</span>" parentADFindex="<span style="color: #8b0000">0</span>"> <Cell description="<span style="color: #8b0000">数据</span>" type="<span style="color: #8b0000">XX</span>" count="<span style="color: #8b0000"></span>" step="<span style="color: #8b0000"></span>" fd="<span style="color: #8b0000"></span>" matherKeyId="<span style="color: #8b0000"></span>" algorithmTag="<span style="color: #8b0000"></span>" useChange="<span style="color: #8b0000"></span>" state="<span style="color: #8b0000"></span>" countState="<span style="color: #8b0000"></span>"></Cell> <Cell description="<span style="color: #8b0000">数据</span>" type="<span style="color: #8b0000">YY</span>" count="<span style="color: #8b0000">5</span>" step="<span style="color: #8b0000">1</span>" fd="<span style="color: #8b0000">0</span>" matherKeyId="<span style="color: #8b0000">06</span>" algorithmTag="<span style="color: #8b0000">00</span>" useChange="<span style="color: #8b0000">1A</span>" state="<span style="color: #8b0000"></span>" countState="<span style="color: #8b0000"></span>"></Cell> </Element> <Element description="<span style="color: #8b0000">数据文件</span>" <span style="color: #0000ff">class</span>="<span style="color: #8b0000">RECORD_FILE</span>" id="<span style="color: #8b0000">0002</span>" parentADFindex="<span style="color: #8b0000">0</span>"> </Element> <Element description="<span style="color: #8b0000">审计文件</span>" <span style="color: #0000ff">class</span>="<span style="color: #8b0000">RECORD_FILE</span>" id="<span style="color: #8b0000">0003</span>" parentADFindex="<span style="color: #8b0000">0</span>"> </Element> <Element description="<span style="color: #8b0000">计数文件</span>" <span style="color: #0000ff">class</span>="<span style="color: #8b0000">RECORD_FILE</span>" id="<span style="color: #8b0000">0004</span>" parentADFindex="<span style="color: #8b0000">0</span>"> </Element> <Element description="<span style="color: #8b0000">记录文件</span>" <span style="color: #0000ff">class</span>="<span style="color: #8b0000">RECORD_FILE</span>" id="<span style="color: #8b0000">0005</span>" parentADFindex="<span style="color: #8b0000">0</span>"> </Element> </Section> </Context> </CardInfo>
解析的java程序（里面的实体类在程序之后）：
import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import java.util.List; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import org.xmlpull.v1.XmlPullParserFactory; public class XmlPullHandler { private Cell cell; private Element element; private Section section; private Card card; private DependedCard dependedCard; private Context context; private CardInfo cardInfo; private CheckCards checkCards; private List cardInfoList; private List cellList; private List elementList; private List sectionList; private List cardList; private InputStream inputStream; public XmlPullHandler(InputStream inputStream){ this.inputStream = inputStream; } public CheckCards parseXml(){ //构建XmlPullParserFactory try { XmlPullParserFactory pullParserFactory=XmlPullParserFactory.newInstance(); //获取XmlPullParser的实例 XmlPullParser xmlPullParser=pullParserFactory.newPullParser(); //设置输入流 xml文件 xmlPullParser.setInput(inputStream, " UTF-8"); //开始 int eventType=xmlPullParser.getEventType(); try { while(eventType!=XmlPullParser.END_DOCUMENT){ String qName=xmlPullParser.getName(); switch (eventType) { //文档开始 case XmlPullParser.START_DOCUMENT: //cardInfo = new CardInfo(); break; //开始节点 case XmlPullParser.START_TAG: if(" CheckCards".equals(qName)){ checkCards = new CheckCards(); cardInfoList = new ArrayList (); checkCards.setDeviceType(xmlPullParser.getAttributeValue( null," deviceType")); checkCards.setCardType(xmlPullParser.getAttributeValue( null," cardType")); } else if (" DependedCard".equals(qName)) { dependedCard = new DependedCard(); cardList = new ArrayList (); } else if (" Card".equals(qName)) { card = new Card(); card.setName(xmlPullParser.getAttributeValue( null," name")); card.setSlotNo(xmlPullParser.getAttributeValue( null," slotNo")); card.setRate(xmlPullParser.getAttributeValue( null," rate")); } else if(" CardInfo".equals(qName)){ cardInfo = new CardInfo(); cardInfo.setName(xmlPullParser.getAttributeValue( null," name")); cardInfo.setSlotNo(xmlPullParser.getAttributeValue( null," slotNo")); cardInfo.setRate(xmlPullParser.getAttributeValue( null," rate")); } else if (" Context".equals(qName)) { context = new Context(); sectionList = new ArrayList (); context.setContextClass(xmlPullParser.getAttributeValue( null," class")); context.setContextId(xmlPullParser.getAttributeValue( null," id")); } else if (" Section".equals(qName)) { section = new Section(); elementList = new ArrayList (); section.setSectionCalssName(xmlPullParser.getAttributeValue( null," class")); section.setSectionId(xmlPullParser.getAttributeValue( null," id")); section.setSize(xmlPullParser.getAttributeValue( null," size")); section.setIndex(xmlPullParser.getAttributeValue( null," index")); } else if (" Element".equals(qName)) { element = new Element(); cellList = new ArrayList (); element.setDescription(xmlPullParser.getAttributeValue( null," description")); element.setElementCalssName(xmlPullParser.getAttributeValue( null," class")); element.setElementId(xmlPullParser.getAttributeValue( null," id")); element.setParentADFindex(xmlPullParser.getAttributeValue( null," parentADFindex")); } else if (" Cell".equals(qName)) { cell = new Cell(); cell.setDescription(xmlPullParser.getAttributeValue( null," description")); cell.setType(xmlPullParser.getAttributeValue( null," type")); cell.setCount(xmlPullParser.getAttributeValue( null," count")); cell.setStep(xmlPullParser.getAttributeValue( null," step")); cell.setFd(xmlPullParser.getAttributeValue( null," fd")); cell.setMatherKeyId(xmlPullParser.getAttributeValue( null," matherKeyId")); cell.setAlgorithmTag(xmlPullParser.getAttributeValue( null," algorithmTag")); cell.setUseChange(xmlPullParser.getAttributeValue( null," useChange")); cell.setState(xmlPullParser.getAttributeValue( null," state")); cell.setCountState(xmlPullParser.getAttributeValue( null," countState")); cell.setKeyValue(xmlPullParser.getAttributeValue( null," keyValue")); } break; //结束节点 case XmlPullParser.END_TAG: if(" Card".equals(qName)){ cardList.add(card); card = null; } else if(" DependedCard".equals(qName)){ dependedCard.setCardList(cardList); cardList = null; } else if(" Cell".equals(qName)){ cellList.add(cell); cell = null; } else if(" Element".equals(qName)){ element.setCellList(cellList); elementList.add(element); element = null; cellList = null; } else if(" Section".equals(qName)){ section.setElementList(elementList); sectionList.add(section); section = null; elementList = null; } else if(" Context".equals(qName)){ context.setSectionList(sectionList); sectionList = null; } else if(" CardInfo".equals(qName)){ cardInfo.setContext(context); cardInfoList.add(cardInfo); context = null; cardInfo = null; } else if(" CheckCards".equals(qName)){ checkCards.setDependedCard(dependedCard); checkCards.setCardInfoList(cardInfoList); dependedCard = null; cardInfoList = null; } break; default: break; } eventType=xmlPullParser.next(); } } catch (NumberFormatException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } catch (XmlPullParserException e) { e.printStackTrace(); } return checkCards; } }
程序中的实体类如下：
Card类
public class Card { private String name; private String slotNo; private String rate; public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSlotNo() { return slotNo; } public void setSlotNo(String slotNo) { this.slotNo = slotNo; } public String getRate() { return rate; } public void setRate(String rate) { this.rate = rate; } }
CardInfo类
public class CardInfo { private String name; private String slotNo; private Context context; private String rate; public String getSlotNo() { return slotNo; } public void setSlotNo(String slotNo) { this.slotNo = slotNo; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Context getContext() { return context; } public void setContext(Context context) { this.context = context; } public String getRate() { return rate; } public void setRate(String rate) { this.rate = rate; } }
Cell类
public class Cell { private String description; private String type; private String count; private String step; private String fd; private String matherKeyId; private String algorithmTag; private String useChange; private String state; private String countState; private String keyValue; public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } public String getType() { return type; } public void setType(String type) { this.type = type; } public String getCount() { return count; } public void setCount(String count) { this.count = count; } public String getStep() { return step; } public void setStep(String step) { this.step = step; } public String getFd() { return fd; } public void setFd(String fd) { this.fd = fd; } public String getMatherKeyId() { return matherKeyId; } public void setMatherKeyId(String matherKeyId) { this.matherKeyId = matherKeyId; } public String getAlgorithmTag() { return algorithmTag; } public void setAlgorithmTag(String algorithmTag) { this.algorithmTag = algorithmTag; } public String getUseChange() { return useChange; } public void setUseChange(String useChange) { this.useChange = useChange; } public String getState() { return state; } public void setState(String state) { this.state = state; } public String getCountState() { return countState; } public void setCountState(String countState) { this.countState = countState; } public String getKeyValue() { return keyValue; } public void setKeyValue(String keyValue) { this.keyValue = keyValue; } }
CheckCards类
public class CheckCards { private String deviceType; private String cardType; private DependedCard dependedCard; private List cardInfoList; public String getDeviceType() { return deviceType; } public void setDeviceType(String deviceType) { this.deviceType = deviceType; } public String getCardType() { return cardType; } public void setCardType(String cardType) { this.cardType = cardType; } public DependedCard getDependedCard() { return dependedCard; } public void setDependedCard(DependedCard dependedCard) { this.dependedCard = dependedCard; } public List getCardInfoList() { return cardInfoList; } public void setCardInfoList(List cardInfoList) { this.cardInfoList = cardInfoList; } }
Context类
public class Context { private String contextClass; private String contextId; private List sectionList; public String getContextClass() { return contextClass; } public void setContextClass(String contextClass) { this.contextClass = contextClass; } public String getContextId() { return contextId; } public void setContextId(String contextId) { this.contextId = contextId; } public List getSectionList() { return sectionList; } public void setSectionList(List sectionList) { this.sectionList = sectionList; } }
DependedCard类
public class DependedCard { private List cardList; public List getCardList() { return cardList; } public void setCardList(List cardList) { this.cardList = cardList; } }
Element类
public class Element { private String description; private String elementCalssName; private String elementId; private String parentADFindex; private List cellList; public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } public String getElementCalssName() { return elementCalssName; } public void setElementCalssName(String elementCalssName) { this.elementCalssName = elementCalssName; } public String getElementId() { return elementId; } public void setElementId(String elementId) { this.elementId = elementId; } public String getParentADFindex() { return parentADFindex; } public void setParentADFindex(String parentADFindex) { this.parentADFindex = parentADFindex; } public List getCellList() { return cellList; } public void setCellList(List cellList) { this.cellList = cellList; } }
Section类
public class Section { private String sectionCalssName; private String sectionId; private String size; private String index; private List elementList; public String getSectionCalssName() { return sectionCalssName; } public void setSectionCalssName(String sectionCalssName) { this.sectionCalssName = sectionCalssName; } public String getSectionId() { return sectionId; } public void setSectionId(String sectionId) { this.sectionId = sectionId; } public List getElementList() { return elementList; } public void setElementList(List elementList) { this.elementList = elementList; } public String getSize() { return size; } public void setSize(String size) { this.size = size; } public String getIndex() { return index; } public void setIndex(String index) { this.index = index; } }