DOM parsing error in RSS FEED -
i need parse xml file , need display in list view got problem while running code. 1 please me on come problem thank in advance
this xml file source http://purl.org/dc/elements/1.1/" version="2.0"
<rss xmlns:dc="http://purl.org/dc/elements/1.1/" version="2.0"> <channel> <title>mobilenations</title> <description> mobile nations brings best of android central, crackberry.com, precentral.net, tipb.com, , wpcentral </description> <link>http://www.mobilenations.com/</link> <language>en-us</language> <lastbuilddate>wed, 07 aug 2013 06:15:01 -0400</lastbuilddate> <pubdate>wed, 07 aug 2013 06:15:01 -0400</pubdate> <item> <title> at&t activates new 4g lte markets, expands coverage in others </title> <description> <p class="rtecenter"><img alt="at&t" class="lightbox2 imagecache-w680h550 aligncenter" src="http://cdn.androidcentral.com/sites/androidcentral.com/files/imagecache/w680h550/postimages/108579/att-store-2.jpg" /></p> <h3> 6 new markets, expanded coverage in washington, d.c. , san francisco areas</h3> <p><a href="http://www.androidcentral.com/tags/att" title="at&t">at&t</a> sends word it's switched on 4g lte service in 6 new markets, while expanding coverage in 2 major cities.</p> <p>from today, at&t lte should available in —</p> <p><a href="http://www.androidcentral.com/att-activates-new-4g-lte-markets-expands-coverage-others" target="_blank">read more</a></p> </description> <link> http://www.androidcentral.com/att-activates-new-4g-lte-markets-expands-coverage-others </link> <pubdate>wed, 07 aug 2013 09:48:24 +0000</pubdate> <category domain="http://www.androidcentral.com/articles/news">news</category> <category domain="http://www.androidcentral.com/tags/4g">4g</category> <category domain="http://www.androidcentral.com/tags/att-0">at&t</category> <category domain="http://www.androidcentral.com/tags/lte">lte</category> <guid ispermalink="false">32622 @ http://www.androidcentral.com</guid> <comments> http://www.androidcentral.com/att-activates-new-4g-lte-markets-expands-coverage-others#comments </comments> <dc:creator>alex dobie</dc:creator> </item> my dom parser code is
package com.wfwf.everestnewsapp.parser; import java.net.malformedurlexception; import java.net.url; import javax.xml.parsers.documentbuilder; import javax.xml.parsers.documentbuilderfactory; import org.jsoup.jsoup; import org.jsoup.select.elements; import org.w3c.dom.document; import org.w3c.dom.node; import org.w3c.dom.nodelist; import org.xml.sax.inputsource; import android.util.log; public class domparser { private rssfeed _feed = new rssfeed(); public rssfeed parsexml(string xml) { url url = null; try { url = new url(xml); } catch (malformedurlexception e1) { e1.printstacktrace(); } try { // create required instances documentbuilderfactory dbf; dbf = documentbuilderfactory.newinstance(); documentbuilder db = dbf.newdocumentbuilder(); // parse xml document doc = db.parse(new inputsource(url.openstream())); doc.getdocumentelement().normalize(); // <item> tags. nodelist nl = doc.getelementsbytagname("item"); int length = nl.getlength(); log.i("this test message"+length, xml); (int = 0; < length; i++) { node currentnode = nl.item(i); rssitem _item = new rssitem(); nodelist nchild = currentnode.getchildnodes(); int clength = nchild.getlength(); log.i("this test message total child nodes"+clength, xml); // required elements each item // ishwor changed code j=0 , j= j+1 (int j = 0; j < clength; j = j + 1) { log.i("first child node name is"+nchild.item(j).getnodename(), xml); node thisnode = nchild.item(j); string thestring = null; //ishwor changed if (thisnode != null && thisnode.getfirstchild() != null) { thestring = thisnode.getfirstchild().getnodevalue(); } if (thestring != null) { string nodename = thisnode.getnodename(); /* string nodename = thisnode.getnodename(); //thestring = nchild.item(j).getfirstchild().getnodevalue(); if(nchild.item(j).getfirstchild().getnodevalue()!=null){ //if (thestring != null) { //string nodename = thisnode.getnodename(); */ if ("title".equals(nodename)) { // node name equals 'title' set node // value title in rssitem. _item.settitle(thestring); log.i("this test message"+thestring, xml); } else if ("description".equals(nodename)) { _item.setdescription(thestring); log.i("this test message"+thestring, xml); // parse html description image url string html = thestring; org.jsoup.nodes.document dochtml = jsoup.parse(html); elements imgele = dochtml.select("img"); _item.setimage(imgele.attr("src")); } else if ("pubdate".equals(nodename)) { // replace plus , zero's in date // empty string string formateddate = thestring.replace(" +0000", ""); _item.setdate(formateddate); } } } // add item list _feed.additem(_item); } } catch (exception e) { } // return final feed once items added rssfeed // object(_feed). return _feed; } } my log cat error is
08-08 12:52:55.059: w/dalvikvm(3484): threadid=11: thread exiting uncaught exception (group=0x41a692a0) 08-08 12:52:55.064: e/androidruntime(3484): fatal exception: asynctask #1 08-08 12:52:55.064: e/androidruntime(3484): java.lang.runtimeexception: error occured while executing doinbackground() 08-08 12:52:55.064: e/androidruntime(3484): @ android.os.asynctask$3.done(asynctask.java:299) 08-08 12:52:55.064: e/androidruntime(3484): @ java.util.concurrent.futuretask$sync.innersetexception(futuretask.java:273) 08-08 12:52:55.064: e/androidruntime(3484): @ java.util.concurrent.futuretask.setexception(futuretask.java:124) 08-08 12:52:55.064: e/androidruntime(3484): @ java.util.concurrent.futuretask$sync.innerrun(futuretask.java:307) 08-08 12:52:55.064: e/androidruntime(3484): @ java.util.concurrent.futuretask.run(futuretask.java:137) 08-08 12:52:55.064: e/androidruntime(3484): @ android.os.asynctask$serialexecutor$1.run(asynctask.java:230) 08-08 12:52:55.064: e/androidruntime(3484): @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1076) 08-08 12:52:55.064: e/androidruntime(3484): @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:569) 08-08 12:52:55.064: e/androidruntime(3484): @ java.lang.thread.run(thread.java:856) 08-08 12:52:55.064: e/androidruntime(3484): caused by: java.lang.noclassdeffounderror: org.jsoup.jsoup 08-08 12:52:55.064: e/androidruntime(3484): @ com.wfwf.everestnewsapp.parser.domparser.parsexml(domparser.java:102) 08-08 12:52:55.064: e/androidruntime(3484): @ com.wfwf.everestnewsapp.splash$asyncloadxmlfeed.doinbackground(splash.java:131) 08-08 12:52:55.064: e/androidruntime(3484): @ com.wfwf.everestnewsapp.splash$asyncloadxmlfeed.doinbackground(splash.java:1) 08-08 12:52:55.064: e/androidruntime(3484): @ android.os.asynctask$2.call(asynctask.java:287) 08-08 12:52:55.064: e/androidruntime(3484): @ java.util.concurrent.futuretask$sync.innerrun(futuretask.java:305) 08-08 12:52:55.064: e/androidruntime(3484): ... 5 more
try example...
import java.net.url; import java.util.arraylist; import javax.xml.parsers.documentbuilder; import javax.xml.parsers.documentbuilderfactory; import org.w3c.dom.document; import org.w3c.dom.element; import org.w3c.dom.node; import org.w3c.dom.nodelist; import org.xml.sax.inputsource; import android.app.activity; import android.content.context; import android.os.bundle; import android.text.html; import android.util.log; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.baseadapter; import android.widget.listview; import android.widget.textview; public class xmlparsingdomexample extends activity { arraylist<string> title; arraylist<string> description; arraylist<string> pubdate; itemadapter adapter1; @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); listview list = (listview) findviewbyid(r.id.list); title = new arraylist<string>(); description = new arraylist<string>(); pubdate = new arraylist<string>(); try { url url = new url( "your url"); documentbuilderfactory dbf = documentbuilderfactory.newinstance(); documentbuilder db = dbf.newdocumentbuilder(); document doc = db.parse(new inputsource(url.openstream())); doc.getdocumentelement().normalize(); nodelist nodelist = doc.getelementsbytagname("item"); (int = 0; < nodelist.getlength(); i++) { node node = nodelist.item(i); element fstelmnt = (element) node; nodelist namelist = fstelmnt.getelementsbytagname("title"); element nameelement = (element) namelist.item(0); namelist = nameelement.getchildnodes(); log.v("title--", ""+ ((node) namelist.item(0)).getnodevalue()); title.add(""+ ((node) namelist.item(0)).getnodevalue()); nodelist websitelist = fstelmnt.getelementsbytagname("description"); element websiteelement = (element) websitelist.item(0); websitelist = websiteelement.getchildnodes(); log.v("description--", ""+ ((node) websitelist.item(0)).getnodevalue()); description.add(""+ ((node) websitelist.item(0)).getnodevalue()); nodelist websitelist1 = fstelmnt.getelementsbytagname("pubdate"); element websiteelement1 = (element) websitelist1.item(0); websitelist1 = websiteelement1.getchildnodes(); pubdate.add(""+ ((node) websitelist1.item(0)).getnodevalue()); } } catch (exception e) { system.out.println("xml pasing excpetion = " + e); } adapter1 = new itemadapter(this); list.setadapter(adapter1); } class itemadapter extends baseadapter { final layoutinflater minflater; private class viewholder { public textview title_text; public textview des_text; public textview date_text; } public itemadapter(context context) { // todo auto-generated constructor stub super(); minflater = (layoutinflater)context.getsystemservice(context.layout_inflater_service); } //@override public int getcount() { return title.size(); } //@override public object getitem(int position) { return position; } //@override public long getitemid(int position) { return position; } //@override public view getview(final int position, view convertview, viewgroup parent) { view view = convertview; final viewholder holder; if (convertview == null) { view = minflater.inflate(r.layout.mainpage_listitem_activity, parent, false); holder = new viewholder(); holder.title_text = (textview) view.findviewbyid(r.id.title_text); holder.des_text = (textview) view.findviewbyid(r.id.des_text); holder.date_text = (textview) view.findviewbyid(r.id.date_text); view.settag(holder); } else { holder = (viewholder) view.gettag(); } holder.title_text.settext(""+title.get(position)); holder.des_text.settext(""+html.fromhtml(description.get(position))); holder.date_text.settext(""+pubdate.get(position)); return view; } } }
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