Android for simple Login

Always know that the Web login after the session to stay in reply, and now Android do not know how to do it.

Study it and record it for a moment. Directly on the code:

Server-side:

index.jsp

<% @page import= "Java.io.PrintWriter"%><% @page import= "Com.sun.org.apache.xml.internal.serialize.Printer "%><% @page import=" com.google.gson.JsonObject "%><%@ page language=" java "contenttype=" text/html; Charset=utf-8 "    pageencoding=" UTF-8 "%><%//test, log in with only one user name, no password string userName = Request.getparameter (" UserName "); PrintWriter pw = Response.getwriter ();//As long as the user name conforms to the set can log on if (Username.equals ("Miquan")) {//return android Jsonjsonobject JSON = new Jsonobject (); Json.addproperty ("Success", true); Json.addproperty ("SessionId", Request.getsession (). GetId ());// Saved on the server side of the Sessionrequest.getsession (). SetAttribute ("UserName", "I am a test name."); Pw.write (Json.tostring ());p W.flush ();} else {Jsonobject obj = new Jsonobject (); Obj.addproperty ("Success", false);p W.write (obj.tostring ());p W.flush ();} %>

session.jsp

<% @page import= "javax.websocket.Session"%><% @page import= "java.io.PrintWriter"%><%@ page language= " Java "contenttype=" text/html; Charset=utf-8 "    pageencoding=" UTF-8 "%><%printwriter pw = Response.getwriter ();//Get to the same session, Instead of starting a new session, it's going to get the effect I want. Pw.write (String) session.getattribute ("UserName"));p W.flush ();%>

android:

Login Btnlogin.setonclicklistener (new Onclicklistener () {@Overridepublic void OnClick (View v) {finalhttp fh = new Finalhttp (); Fh.get ("Http://172.27.35.1:8080/login/index.jsp?userName=miquan", new ajaxcallback<object> () {@ overridepublic void onsuccess (Object t) {//Gets the returned jsonstring str = t.tostring (); str = Str.trim (); try {jsonobject obj = new Jsonobject (str); Boolean success = Obj.getboolean ("Success");//Login successful if (success) {//app = (MyApplication) This.getapplication ();//myapplication added Properties SessionID and Isloginapp.setlogin (true); App.setsessionid (Obj.getstring (" SessionId ")); Toast.maketext (App, "Login successful", Toast.length_short). Show (); else {toast.maketext (app, "Login Failed", Toast.length_short). Show ();}} catch (Jsonexception e) {e.printstacktrace ();} Super.onsuccess (t);} @Overridepublic void OnFailure (Throwable t, int errorno,string strMsg) {log.e ("Miquan", "failure" + STRMSG); super.onfail Ure (t, Errorno, STRMSG);});});

Test Btnsession.setonclicklistener (New Onclicklistener () {@Overridepublic void OnClick (View v) {finalhttp fh = new Finalhttp ();//Add session, even request to send together, here server is Java developed Fh.addheader ("Cookie", "jsessionid=" + App.getsessionid ()); Fh.get ( "Http://172.27.35.1:8080/login/session.jsp", new Ajaxcallback<object> () {@Overridepublic void onsuccess ( Object t) {log.e ("Miquan", t.tostring ()); super.onsuccess (t);} @Overridepublic void OnFailure (Throwable t, int errorno,string strMsg) {log.e ("Miquan", "failure"  + STRMSG); Super.onfailure (t, Errorno, STRMSG);});});

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