As 3.0 communication with JSP (4)

This time, we use flex for remote and JSP access, and return XML data values. The following is an encapsulated class that inherits the httpservice class.

 

 Package config <br/>{< br/> Import flash. events. *; <br/> Import flash.net. *; </P> <p> Import MX. RPC. events. faultevent; <br/> Import MX. RPC. events. resultevent; <br/> Import MX. RPC. HTTP. httpservice; <br/> public class connect2 extends httpservice <br/> {<br/> Private Static Var CONNECT: connect2 = NULL; </P> <p> // URL of the connection <br/> Public Static Var myurl: String = "http: // localhost: 8080/flash/receive. JSP "; </P> <p> Public Function connect2 () <br/> {<br/> This. method = "Post"; <br/> This. useproxy = false; // do not start the proxy service <br/> This. resultformat = "XML"; // set the format of the returned data to XML <br/>}</P> <p> Public static function getconnect (): connect2 <br/>{< br/> If (connect = NULL) <br/>{< br/> connect = new connect2 (); <br/>}< br/> return connect; <br/>}< br/> Public Function sendmessage (para: urlvariables, myurl: string ): void <br/> {// set the variable for sending data <br/> This. url = myurl; // specify the JSP page to be sent <br/> This. send (para); // send data <br/>}< br/>

 

Second: JSP output value

Out. println ("value you want to return"); read through FLEX

 

<% <Br/> response. setcontenttype ("text/XML"); <br/> string myname = request. getparameter ("username"); <br/> string Pwd = request. getparameter ("userpwd"); </P> <p> out. println ("<? XML version =/"1.0/" encoding =/"UTF-8/"?> "); <Br/> out. println ("<userinfo> <SS>" + myname + "</SS> <SS>" + PWD + "</SS> </userinfo> "); </P> <p> %> </P> <p>

 

Here is a data that returns XML

 

Then write a client in flex. Read the data returned by the data.

 

<? XML version = "1.0" encoding = "UTF-8"?> <Br/> <mx: Application xmlns: MX = "http://www.adobe.com/2006/mxml" layout = "absolute" creationcomplete = "Init ()"> <br/> <mx: SCRIPT> <br/> <! -- [CDATA [<br/> Import MX. effects. iabstracteffect; <br/> Import MX. RPC. events. faultevent; <br/> Import MX. RPC. events. resultevent; <br/> Import config. connect2; </P> <p> private var con: connect2; </P> <p> private function Init (): void <br/> {<br/> con = connect2.getconnect (); // Connection Network </P> <p >}< br/> private function senddata (): void <br/> {<br/> If (username. text! = "" & Userpwd. Text! = "") <Br/>{< br/> var para: urlvariables = new urlvariables (); <br/> para. username = username. text; <br/> para. userpwd = userpwd. text; <br/> con. sendmessage (para, connect2.myurl); // send data <br/> con. addeventlistener (resultevent. result, resulthander); // listen to the returned results <br/> con. addeventlistener (faultevent. fault, faulthander); // listener error result <br/>}</P> <p> private function resulthander (Event: resultevent ): void <br/> {trace ("D"); </P> <p> var myxml: xml = XML (event. result); <br/> trace (myxml); // output XML format <br/> trace (myxml. child ("SS "). children () [0]); </P> <p >}</P> <p> private function faulthander (Event: faultevent ): void <br/> {trace ("cuowu"); </P> <p >}</P> <p>] --> <br/> </MX: SCRIPT> <br/> <mx: panel width = "303" Height = "209" layout = "absolute" x = "216" Y = "113"> <br/> <mx: button click = "senddata ()" label = "send" labelplacement = "Left" x = "208" Y = "113"/> <br/> <mx: textinput id = "username" x = "66" Y = "24" width = "196"/> <br/> <mx: textinput id = "userpwd" x = "66" Y = "67" width = "196"/> <br/> <mx: label x = "14" Y = "26" text = "name"/> <br/> <mx: label x = "10" Y = "69" text = "password"/> <br/> </MX: Panel> <br/> </MX: application> <br/>

 

Preview the output result:

<Userinfo>
<SS> S </SS>
<SS> S </SS>
</Userinfo>

S