本文介绍了一个简单的WebService示例，展示了如何使用C#创建WebService并提供几种不同类型的数据返回方法。此外，还提供了通过JavaScript调用这些WebService方法的具体实现，包括字符串获取、列表获取及对象列表获取。
WebService文件内容
代码
using System;
using System.Web;
using System.Collections;
using System.Collections.Generic;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Web.UI.MobileControls;
/// <summary>
/// JsWebService 的摘要说明
/// </summary>
[WebService(Namespace = " http://tempuri.org/ " )]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService]
public class JsWebService : System.Web.Services.WebService
{
public JsWebService()
{
// 如果使用设计的组件，请取消注释以下行
// InitializeComponent();
}
[WebMethod]
public string GetString()
{
return " GetString " ;
}
[WebMethod]
public string GetString( string name)
{
return string .Format( " {0}欢迎您的到来! " , name);
}
[WebMethod]
public List < string > GetList()
{
List < string > listStr = new List < string > ();
for ( int i = 0 ; i < 10 ; i ++ )
{
listStr.Add( " test " + i);
}
return listStr;
}
[WebMethod]
public List < JsWebServiceObject > GetObjectList()
{
List < JsWebServiceObject > objs = new List < JsWebServiceObject > ();
for ( int i = 0 ; i < 10 ; i ++ )
{
JsWebServiceObject obj = new JsWebServiceObject( " name " + i, i + 20 );
objs.Add(obj);
}
return objs;
}
}
调用WebService的aspx页面代码
代码
<% @ Page Language = " C# " AutoEventWireup = " true " CodeFile = " Default.aspx.cs " Inherits = " _Default " %>
<! DOCTYPE html PUBLIC " -//W3C//DTD XHTML 1.1//EN " " http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd " >
< html xmlns = " http://www.w3.org/1999/xhtml " >
< head runat = " server " >
< title > Js调用WebService </ title >
< script type = " text/javascript " >
function GetString()
{
JsWebService.GetString(GetStringCallBack); // 在WebService中调用方法，并设置回调函数
}
function GetStringCallBack(result)
{
alert(result);
}
function GetStringParam(name)
{
JsWebService.GetString(name,GetStringParamCallBack); // 在WebService中调用方法，并设置回调函数，如果此方法中带有参数则在回调函数前加入此参数。
}
function GetStringParamCallBack(result)
{
alert(result);
}
function GetList()
{
JsWebService.GetList(GetListCallBack);
}
function GetListCallBack(result)
{
if (result.length != 0 )
{
for (var i = 0 ;i < result.length;i ++ )
{
document.getElementById( " contentDivGetList " ).innerHTML += result[i] + " <br/> " ;
}
}
}
function GetObjectList()
{
JsWebService.GetObjectList(GetObjectListCallBack);
}
function GetObjectListCallBack(result)
{
if (result.length != 0 )
{
for (var i = 0 ;i < result.length;i ++ )
{
document.getElementById( " contentDivGetObjectList " ).innerHTML += " 姓名: " + result[i].Name + " 年龄: " + result[i].Age + " <br/> " ;
}
}
}
</ script >
</ head >
< body >
< form id = " form1 " runat = " server " >
< asp:ScriptManager ID = " smJs " runat = " server " >
< Services >
< asp:ServiceReference Path = " WebService/JsWebService.asmx " />
</ Services >
</ asp:ScriptManager >
< div >
< input type = " button " name = " btnJsWebService " value = " GetString " onclick = " GetString() " />
< input type = " button " name = " butJsWebService " value = " GetList " onclick = " GetList() " />
< input type = " button " name = " butJsWebService " value = " GetObjectList " onclick = " GetObjectList() " />
< input type = " button " name = " butJsWebService " value = " GetStringParam " onclick = " GetStringParam('js调用WebService') " />
< div id = " contentDivGetList " ></ div >
< div id = " contentDivGetObjectList " ></ div >
</ div >
</ form >
</ body >
</ html >
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