急！毫无头绪 java.lang.NoClassDefFoundError: org/xmlpull/v1/XmlPullParserException

[slj_0721]

import javax.microedition.midlet.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
import java.io.*;
import org.xmlpull.v1.*;



public class XmlRead extends MIDlet {

	private Display display;
	private String url = "http://192.168.1.100/myxml/index.xml";
	XmlPullParserFactory factory;
	XmlPullParser xpp;
	
	public XmlRead() {
		display = Display.getDisplay(this);

	}

	public void startApp() {
		try {
			downloadPage(url);
		} catch (IOException e) {
			// handle the exception
		}
	}

	private void downloadPage(String url) throws IOException{
		InputStream is = null;
		HttpConnection c = null;
		TextBox t = null;

		try {

			c = (HttpConnection) Connector.open(url);
			is = c.openInputStream();
	
			factory = XmlPullParserFactory.newInstance();
			factory.setNamespaceAware(true);
			xpp = factory.newPullParser();
			xpp.setInput(is,null);
			int eventType = xpp.getEventType();
			while (true) {
				switch (eventType) {
				case XmlPullParser.START_DOCUMENT:
					System.out.println("Start of Document");
					break;
				case XmlPullParser.START_TAG:
					System.out.println("Start of Tag" + xpp.getName());
					break;
				case XmlPullParser.END_TAG:
					System.out.println("END_TAG" + xpp.getName());
					break;
				case XmlPullParser.TEXT:
					System.out.println("Text" + xpp.getText());
					break;

				}
				if (eventType == XmlPullParser.END_DOCUMENT)
					break;
				eventType = xpp.next();
			}
		}catch(XmlPullParserException e){
			
		}
		finally {
			is.close();
			c.close();
		}

		display.setCurrent(t);
	}

	public void pauseApp() {
	}

	public void destroyApp(boolean unconditional) {
	}

}

一旦运行 就会出现：

java.lang.NoClassDefFoundError: org/xmlpull/v1/XmlPullParserException
at com.sun.midp.midlet.MIDletState.createMIDlet(+29)
at com.sun.midp.midlet.Scheduler.schedule(+52)
at com.sun.midp.main.Main.runLocalClass(+28)
at com.sun.midp.main.Main.main(+80)
Execution completed.
3384842 bytecodes executed
21 thread switches
1670 classes in the system (including system classes)
17661 dynamic objects allocated (532624 bytes)
2 garbage collections (458536 bytes collected)

代码没有语法错误，程序还没进到代码中就异常退出了。怎么会这样啊，是eclipse没配置好吗

[老紫竹]

去 http://www.xmlpull.org/ 下载一个支持的jar吧
你的程序缺少这个类库

[老紫竹]

如果你有这个jar,那么加入到你的CLASSPATH里面去。

[slj_0721]

类库我有啊，KXML2，而且已经加到CLASSPATH中了，不会是这个问题

[奇伢]

org/xmlpull/v1/XmlPullParserException
那你在KXMK中能找到org.xmlpull.v1.XmlPullParserException这个类吗？

[slj_0721]

有啊，有这个类

[懒得抠虱子]

去下载源码，把源码加到你的项目中试试吧。

[slj_0721]

还是不行
java.lang.Error: Unresolved compilation problem:

at XmlPullParserFactory.newInstance(+9)
at XmlRead.downloadPage(+26)
at XmlRead.startApp(+8)
at javax.microedition.midlet.MIDletProxy.startApp(+7)
at com.sun.midp.midlet.Scheduler.schedule(+270)
at com.sun.midp.main.Main.runLocalClass(+28)
at com.sun.midp.main.Main.main(+80)
Execution completed.

是工具没有配置好吗

[slj_0721]

这是什么意思
caused by: XmlPullParserException: resource not found: /META-INF/services/org.xmlpull.v1.XmlPullParserFactory make sure that parser implementing XmlPull API is available; nested exception is:
XmlPullParserException: resource not found: /META-INF/services/org.xmlpull.v1.XmlPullParserFactory make sure that parser implementing XmlPull API is available

[wangchunhui407]

你打包时是不是没有把你下载的那个ＪＡＲ包进去？