ajax访问webservice

[hpp923]

js代码：
<script type="text/javascript">
var xmlHttp;
function createXMLHttpRequest()
{
if(window.ActiveXObject)
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
else if(window.XMLHttpRequest)
xmlHttp = new XMLHttpRequest();
}
function startRequest()
{
createXMLHttpRequest();
xmlHttp.open("GET","http://localhost:2366/WebSite28/WebService.asmx/Login",true);
xmlHttp.setRequestHeader('Content-Type','text/xml');
xmlHttp.setRequestHeader('charset','utf-8');
xmlHttp.onreadystatechange = function()
{
if(xmlHttp.readyState == 4 && xmlHttp.status == 200)
{
document.getElementById("aaa").innerText = xmlHttp.responseText;
}
}
xmlHttp.send("userName="+document.getElementById("userName").value+"&password="+document.getElementById("password").value);
}
</script>


WevService代码:

using System;
using System.Collections;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;

/// <summary>
///WebService 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
//若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
[System.Web.Script.Services.ScriptService]
public class WebService : System.Web.Services.WebService {

public WebService () {

//如果使用设计的组件，请取消注释以下行
//InitializeComponent();
}

[WebMethod]
public string HelloWorld() {
return "Hello World";
}

[WebMethod(EnableSession=true)]
public int Login(string userName,string password)
{
if (userName == "admin" && password == "admin")
{
return 1;
}
else
{
return 0;
}
}
}



<input id="Button1" type="button" value="登录" onclick="startRequest()" />


点击登陆按钮没反应，请教高手解决

[alisafan123]

function SetSession(name,value)
{         
    var x = new ActiveXObject("Microsoft.XMLDOM");
    var xh = new ActiveXObject("Microsoft.XMLHTTP");
    var url="../DefaultService.asmx/SetSessions" ;
    xh.open("post",url,false);
    xh.setRequestHeader("Content-Type", "application/x-www-form-urlencoded") ;
    xh.send("Name=" +name+ "&Value=" +value);
//    x = xh.responseXML ;
//   CodeIsValid = x.selectSingleNode("//SetSession/CodeIsValid") ;
//   if ((CodeIsValid!=null) && (CodeIsValid.text=="true")) 
//	{
//	    alert("测试成功");	    
//	}
//	else
//	{
//	    alert("测试失败");	    
//	}
	return false;
} 
        
 //用户检查商户编号是否有重复
function CustomerData(objstrcd,objtp,objtxt,oprtp)
{         
    if (objtxt.value=="")
    {
        objtxt.value="0";
    }

    var objs = objtp.getElementsByTagName("INPUT");
    var value; 
    for(i=0 ; i<objs.length ; i++)
    {
        if(objs[i].checked==true)
        {
            value=objs[i].value;
            break; 
        } 
    }   
    if (objstrcd.value=="")
    {
        alert("商户ID不可为空!");
        return false;
    }
    
    var x = new ActiveXObject("Microsoft.XMLDOM");
    var xh = new ActiveXObject("Microsoft.XMLHTTP");
    var url="../DefaultService.asmx/CustomerDataRow" ;
    xh.open("post",url,false);
    xh.setRequestHeader("Content-Type", "application/x-www-form-urlencoded") ;
    xh.send("sStrcd=" +objstrcd.value+"&sTp="+value+"&sTxt="+objtxt.value+"&sOprtp="+oprtp);
    x = xh.responseXML ;

   CodeIsValid = x.selectSingleNode("//CustomerData/CodeIsValid") ;
   RetMesg= x.selectSingleNode("//CustomerData/RetMesg") ;
   
   if ((CodeIsValid!=null) && (CodeIsValid.text=="true")) 
	{
	 if(confirm("是否要进行保存")==true)
        return true;
     else      
		return false;	    
	}
	else
	{
	    alert(RetMesg.text);	    
	    return false;  
	}
}


------------------------------------------------Web Service---------------------------

using System;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.IO;
using System.Net;
using System.Net.Mail;
using Common;

/// <summary>
/// Summary description for DefaultService
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class DefaultService : System.Web.Services.WebService
{

    public DefaultService()
    {

        //Uncomment the following line if using designed components 
        //InitializeComponent(); 
    }

    [WebMethod]
    public string HelloWorld()
    {
        return "Hello World";
    }

    [WebMethod(EnableSession = true)]
    public void SetSessions(string Name, string Value)
    {
        Session[Name] = Value;
    }

    [WebMethod(Description = "检查商户ID的唯一性")]
    public CustomerData CustomerDataRow(string sStrcd, string sTp, string sTxt, string sOprtp)
    {
        Common.CustomerData customerDataRow = new Common.CustomerData();

        if (sStrcd == null && sStrcd == "")
        {
            customerDataRow.RetMesg = "该商户ID为空,请输入商户ID";
            customerDataRow.CodeIsValid = false;
            return customerDataRow;
        }

        try
        {
            if (sOprtp == "1")//增加时检查唯一性
            {
                DataAccess.CustomerInfo ap = new DataAccess.CustomerInfo();
                if (ap.GetInfo(sStrcd) == true)
                {
                    if (ap.List.Rows.Count != 0)
                    {
                        customerDataRow.RetMesg = "该商户ID已存在,请重新输入商户ID";
                        customerDataRow.CodeIsValid = false;
                        return customerDataRow;
                    }
                }
            }

            if (sTp == "2")
            {
                if (System.Convert.ToDouble(sTxt) < 1 || System.Convert.ToDouble(sTxt) > 7)
                {
                    customerDataRow.RetMesg = "只能输入(1-7)数字";
                    customerDataRow.CodeIsValid = false;
                }
                else
                    customerDataRow.CodeIsValid = true;
            }

            if (sTp == "3")
            {
                if (System.Convert.ToDouble(sTxt) < 1 || System.Convert.ToDouble(sTxt) > 30)
                {
                    customerDataRow.RetMesg = "只能输入(1-30)数字";
                    customerDataRow.CodeIsValid = false;
                }
                else
                    customerDataRow.CodeIsValid = true;
            }
        }
        catch
        {
            customerDataRow.RetMesg = "保存失败";
            customerDataRow.CodeIsValid = false;
        }
        return customerDataRow;
    }

[alisafan123]

alert 一步一步测试

[wj7391438x]

爱仕达