客户端代理浅析

客户端代理浅析
•每个Service类对应客户端一个代理类
•每个代理类为Sys.Net.WebServiceProxy类的子类
•代理类的每个方法均对应一个类的静态方法
•最终由Sys.Net.WebServiceProxy.invoke方法发出请求

aspx

     < form id = " form1 "  runat = " server " >
         < asp:ScriptManager ID = " ScriptManager1 "  runat = " server "  ScriptMode = " Debug "   />
        
         < input type = " button "  value = " Get Range Random "  onclick = " getRandom(50, 100) "   />
        
         < script language = " javascript "  type = " text/javascript " >
            function getRandom(minValue, maxValue)
            {
                Sys.Net.WebServiceProxy.invoke(
                     " Services/UseHttpGetService.asmx " ,
                     " GetRangeRandom " ,
                     true ,
                    {  " minValue "  : minValue,
                       " maxValue "  : maxValue},
                    onSucceeded,
                     null ,
                     null ,
                     - 1 );
            }
            
            function onSucceeded(result)
            {
                alert(result);
            }
         </ script >
     </ form >

没有将ScriptManager的InlineScript="true"，不是不使用客户端代理.直接使用Sys.Net.WebServiceProxy.invoke方法调用WebService。

UseHttpGetService.asmx

<% @ WebService Language = " C# "  Class = " UseHttpGetService "   %>

using  System;
using  System.Web;
using  System.Web.Services;
using  System.Web.Services.Protocols;
using  System.Web.Script.Services;

[WebService(Namespace  =   " http://tempuri.org/ " )]
[WebServiceBinding(ConformsTo  =  WsiProfiles.BasicProfile1_1)]
[ScriptService]
public   class  UseHttpGetService  : System.Web.Services.WebService
{
    [WebMethod]
     public   int  GetRandom()
    {
         return   new  Random(DateTime.Now.Millisecond).Next();
    }

    [WebMethod]
    [ScriptMethod(UseHttpGet = true )]
     public   int  GetRangeRandom( int  minValue,  int  maxValue)
    {
         return   new  Random(DateTime.Now.Millisecond).Next(minValue, maxValue);
    }
}