1、XPP3 也叫MXP1

XPP —— XML Pull Parser，XPP3是一个非常快的XML解析器，是第三版的XPP。

XPP2是XPP的第二版。

XPP3是XPP2的继承者，实现了http://www.xmlpull.org定义的XmlPull API 。

XPP3只能用于解析XML，不支持节点树的增加操作。

看到有人做的对比测试，XPP3 比DOM4J 快6倍，也就是使用了1/6时间。

XPP3使用的是Apache 1.1 variant License 协议。

http://www.extreme.indiana.edu/xgws/xsoap/xpp/

http://www.extreme.indiana.edu/xgws/xsoap/xpp/mxp1/index.html

http://mvnrepository.com/artifact/xpp3/xpp3

http://www.xmlpull.org/

使用举例：http://www.xmlpull.org/v1/download/unpacked/doc/quick_intro.html

MyXmlPull.java

============

[java]view plaincopy 
   
 importjava.io.FileReader;
 importjava.io.IOException;
 importjava.io.StringReader;
 
 importorg.xmlpull.v1.XmlPullParser;
 importorg.xmlpull.v1.XmlPullParserException;
 importorg.xmlpull.v1.XmlPullParserFactory;
 /**
 *AnexampleofanapplicationthatusesXMLPULLV1API.
 *
 *@author<ahref="http://www.extreme.indiana.edu/~aslom/">AleksanderSlominski</a>
 */
 publicclassMyXmlPullApp
 {
 publicfinalstaticStringSAMPLE_XML=
 "<?xmlversion=\"1.0\"?>\n"+
 "\n"+
 "<poemxmlns=\"http://www.megginson.com/ns/exp/poetry\">\n"+
 "<title>RosesareRed</title>\n"+
 "<l>Rosesarered,</l>\n"+
 "<l>Violetsareblue;</l>\n"+
 "<l>Sugarissweet,108); border-left-width:3px"> "<l>AndIloveyou.</l>\n"+
 "</poem>";
 
 publicstaticvoidmain(Stringargs[])
 throwsXmlPullParserException,IOException
 {
 XmlPullParserFactoryfactory=XmlPullParserFactory.newInstance();
 factory.setNamespaceAware(true);
 XmlPullParserxpp=factory.newPullParser();
 System.out.println("parserimplementationclassis"+xpp.getClass());
 MyXmlPullAppapp=newMyXmlPullApp();
 if(args.length==0){
 System.out.println("ParsingsimplesampleXML");//:\n"+SAMPLE_XML);
 xpp.setInput(newStringReader(SAMPLE_XML));
 app.processDocument(xpp);
 }else{
 for(inti=0;i<args.length;i++){
 System.out.println("Parsingfile:"+args[i]);
 xpp.setInput(newFileReader(args[i]));
 app.processDocument(xpp);
 }
 }
 publicvoidprocessDocument(XmlPullParserxpp)
 inteventType=xpp.getEventType();
 do{
 if(eventType==xpp.START_DOCUMENT){
 System.out.println("Startdocument");
 }elseif(eventType==xpp.END_DOCUMENT){
 System.out.println("Enddocument");
 }elseif(eventType==xpp.START_TAG){
 processStartElement(xpp);
 }elseif(eventType==xpp.END_TAG){
 processEndElement(xpp);
 }elseif(eventType==xpp.TEXT){
 processText(xpp);
 eventType=xpp.next();
 }while(eventType!=xpp.END_DOCUMENT);
 publicvoidprocessStartElement(XmlPullParserxpp)
 Stringname=xpp.getName();
 Stringuri=xpp.getNamespace();
 if("".equals(uri)){
 System.out.println("Startelement:"+name);
 }else{
 System.out.println("Startelement:{"+uri+"}"+name);
 publicvoidprocessEndElement(XmlPullParserxpp)
 if("".equals(uri))
 System.out.println("Endelement:"+name);
 else
 System.out.println("Endelement:{"+uri+"}"+name);
 intholderForStartAndLength[]=newint[2];
 publicvoidprocessText(XmlPullParserxpp)throwsXmlPullParserException
 charch[]=xpp.getTextCharacters(holderForStartAndLength);
 intstart=holderForStartAndLength[0];
 intlength=holderForStartAndLength[1];
 System.out.print("Characters:\"");
 for(inti=start;i<start+length;i++){
 switch(ch[i]){
 case'\\':
 System.out.print("\\\\");
 break;
 case'"':
 System.out.print("\\\"");
 break;
 case'\n':
 System.out.print("\\n");
 case'\r':
 System.out.print("\\r");
 case'\t':
 System.out.print("\\t");
 default:
 System.out.print(ch[i]);
 System.out.print("\"\n");
 }
 
   
 

XPP3-一个非常快的XML解析器

XPP —— XML Pull Parser，XPP3是一个非常快的XML解析器，是第三版的XPP。

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