Android Universal use WebServices (without introducing external packages)

Directly on the code

Webserviceslib.java

 Packagecom.example.testwebservices;ImportJava.io.InputStream;ImportJava.io.OutputStream;Importjava.net.HttpURLConnection;ImportJava.net.URL;ImportJava.util.Map;ImportOrg.xmlpull.v1.XmlPullParser;Importandroid.util.Xml;//import Javax.xml.parsers.DocumentBuilder;//import javax.xml.parsers.DocumentBuilderFactory;////import org.w3c.dom.Document;//import org.w3c.dom.Element;//import org.w3c.dom.NodeList; Public classWebserviceslib {/*** Call WebServices * *@paramserver_url webservices Address *@paramservicenamespace webservices Namespace *@paramfunctionname Function Name *@paramparams parameter list (name must correspond) *@returnreturn results *@throwsException*/     Public StaticString Invokews (String Server_url, String servicenamespace, string functionname, map<string, string> params)throwsException {stringbuffer Strbuff=NewStringBuffer (); Strbuff.append ("<?xml version=\" 1.0\ "encoding=\" utf-8\ "? >\n"); Strbuff.append ("<soap12:envelope xmlns:xsi=\" http://www.w3.org/2001/xmlschema-instance\ "xmlns:xsd=\" http://www.w3.org/2001/ Xmlschema\ "xmlns:soap12=\" http://www.w3.org/2003/05/soap-envelope\ ">\n"); Strbuff.append ("<soap12:body>\n"); if(params==NULL|| Params.size () ==0) {strbuff.append ("<" + functionname + "xmlns=\" "+ servicenamespace +" \ "/>\n"); } Else{strbuff.append ("<" + functionname + "xmlns=\" "+ servicenamespace +" \ ">\n");  for(Map.entry<string, string>Entry:params.entrySet ()) {Strbuff.append ("<" +entry.getkey () + ">" + entry.getvalue () + "</" +entry.getkey () + ">\n"); } strbuff.append ("</" + functionname + ">\n"); } strbuff.append ("</soap12:body>\n"); Strbuff.append ("</soap12:Envelope>");//return strbuff.tostring ();                byte[] data =strbuff.tostring (). GetBytes (); //submit a POST requestURL url =NewURL (Server_url); HttpURLConnection Conn=(HttpURLConnection) url.openconnection (); Conn.setrequestmethod ("POST"); Conn.setconnecttimeout (5 * 1000); Conn.setdooutput (true); Conn.setrequestproperty ("Content-type", "application/soap+xml; Charset=utf-8 "); Conn.setrequestproperty ("Content-length", String.valueof (data.length)); OutputStream OutStream=Conn.getoutputstream ();        Outstream.write (data);        Outstream.flush ();        Outstream.close (); intResponsecode =Conn.getresponsecode (); if(Responsecode = = 200) {InputStream instream=Conn.getinputstream (); Xmlpullparser Parser=Xml.newpullparser (); Parser.setinput (instream,"UTF-8"); intEventType = Parser.geteventtype ();//produce the first event             while(EventType! =xmlpullparser.end_document) {                //as long as it is not a document end event                Switch(eventtype) { CaseXmlPullParser.START_TAG:String name= Parser.getname ();//gets the name of the element that the parser is currently pointing to                    if((functionname+ "Result"). Equals (name)) {returnParser.nexttext (); }                     Break; } EventType=Parser.next (); }            return""; }        return"Error:" +Responsecode; }}

Calling methods

Mainactivity.java

 Packagecom.example.testwebservices;ImportJava.util.HashMap;ImportJava.util.Map;Importandroid.app.Activity;ImportAndroid.os.Bundle;ImportAndroid.os.Handler;ImportAndroid.os.Message;ImportAndroid.view.Menu;ImportAndroid.view.View;ImportAndroid.widget.Button;ImportAndroid.widget.EditText;ImportAndroid.widget.TextView;ImportAndroid.widget.Toast; Public classMainactivityextendsActivity {PrivateTextView mobileaddress; Private Static Final intmsg_success = 0;//     Private Static Final intMsg_failure = 1;//     PrivateThread Mthread; Private BooleanIsRunning =false; /*** Asynchronous Invocation*/    PrivateHandler Mhandler =NewHandler () { Public voidHandlemessage (Message msg) {//This method runs on the UI thread            Switch(msg.what) { CaseMSG_SUCCESS:mobileAddress.setText (msg.obj.toString ()); Toast.maketext (Getapplication (),"Query succeeded", Toast.length_long). Show ();  Break;  CaseMSG_FAILURE:mobileAddress.setText (msg.obj.toString ()); Toast.maketext (Getapplication (),"Query Failed", Toast.length_long). Show ();  Break; } isrunning=false;    }    }; Runnable Runnable=NewRunnable () {@Override Public voidrun () {//reading an XML file            Try{Map<string, string> params =NewHashmap<string, string>(); String Add=Webserviceslib.invokews ("Http://192.168.1.149:6666/WebServices/SystemRoles.asmx",                        "http://tempuri.org/", "Getallsystemroles", params);            Mhandler.obtainmessage (msg_success, add). Sendtotarget (); } Catch(Exception e) {mhandler.obtainmessage (Msg_failure,e.getmessage ()). Sendtotarget ();    }        }    }; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);                Setcontentview (R.layout.activity_main); Mobileaddress= (TextView) This. Findviewbyid (r.id.mobileaddress); Button btnsearch= (Button) This. Findviewbyid (R.id.btnsearch); Btnsearch.setonclicklistener (NewView.onclicklistener () {@Override Public voidOnClick (View arg0) {//HTTP request cannot be requested in the main thread after Android 4.0                if(!isrunning) {isrunning=true; Mthread=NewThread (runnable); Mthread.start ();//Thread Start}Else{Toast.maketext (Getapplication (),"The thread has started. ", Toast.length_long). Show ();    }            }        }); } @Override Public BooleanOncreateoptionsmenu (Menu menu) {//inflate the menu; This adds items to the action bar if it is present.getmenuinflater (). Inflate (R.menu.activity_main, menu); return true; }}

Android Universal use WebServices (without introducing external packages)