Flex 調用.NET Web Service 之使用Flex Builder 產生的proxy Code

前言

使用Flex常需要與Web Service溝通,因自己常健忘,一陣子沒用就又忘光光,所以乾脆寫在Blog裡,
因Flex使用Web Service有很多種方法,打算全部整理起來~~
第一步 要知道Web Service在哪? wsdl在哪?
以下是使用VS建立一個簡單的Web Service

namespace WebServices { [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.ComponentModel.ToolboxItem(false)] public class Service1 : System.Web.Services.WebService { [WebMethod] public string HelloWorld(String echo) { return echo; } } }

該Service Name為 Service1
有一個operation 叫做 HelloWorld 參數是字串 echo
該service的wsdl假設在http://localhost:3722/Service1.asmx?wsdl
到此已經有充足的資訊,以下顯示如何使用Flex Builder 3 產生Service proxy!






以下簡介一下，所產生的元件的意義，暫時沒空翻譯，大家先看看吧!

Generated file	Description
BaseServiceName.as	A base implementation of the web service. This class contains the internal code that maps the operations from the WSDL file to Flex WSDLOperation instances and sets the corresponding parameters.
IServicename.as	The service interface that defines all of the methods that users can access.
Servicename.as	The concrete web service implementation.
BaseServicenameSchema.as	A file containing the XSD schema of the web service as an ActionScript custom type.
OperationnameResultEvent.as	For each web service operation, Flex Builder generates a strongly typed event type class. You can use these classes to benefit from strongly typed results.
Operationname_request.as	For each web service operation that passes parameters to the server operation, Flex Builder generates a request wrapper class with the parameters as members. The request object is intended for use with the MXML tag syntax.
Type.as	For each complex type defined in the WSDL file, Flex Builder generates a class with the same name as the complex type or with the same name as the enclosing element.

以下的範例是單純使用Flex Tag來呼叫~~

<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:myws="generated.webservices.*"> <myws:Service1 id="myservices"> <myws:helloWorld_request_var> <myws:HelloWorld_request> <myws:echo> Hubert </myws:echo> </myws:HelloWorld_request> </myws:helloWorld_request_var> </myws:Service1> <mx:Button x="127" y="271" label="Get Data" id="btn_GetData" click="{myservices.helloWorld_send();}"/> <mx:TextArea x="127" y="85" width="274" height="149" id="lb_data" text="{myservices.helloWorld_lastResult}"/> </mx:Application>

下一篇我們將使用ActionScript來使用~~