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jQuery ajax调用webservice注意事项

时间：2021-07-01 10:21:17 帮助过：50人阅读

jquery ajax调用webservice(C#)要注意的几个事项：

1、web.config里需要配置2个地方

  1. <httpHandlers>
  2.    <remove verb="*" path="*.asmx"/>
  3.    <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
  4.   </httpHandlers>

在<system.web></system.web>之间加入

  1. <webServices>
  2.    <protocols>
  3.     <add name="HttpPost" />
  4.     <add name="HttpGet" />
  5.    </protocols>
  6.   </webServices>

2.正确地编写webserivce的代码

  1. /// <summary>
  2.   /// UserValidate 的摘要说明
  3.   /// </summary>
  4.   [WebService(Namespace = "http://tempuri.org/")]
  5.   [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
  6.   [System.ComponentModel.ToolboxItem(false)]
  7.   // 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。
  8.    [System.Web.Script.Services.ScriptService]
  9.   public class UserValidate : System.Web.Services.WebService
  10.   {
  11.     DFHon.Content.Common.rootPublic rp = new DFHon.Content.Common.rootPublic();
  12.     [WebMethod]
  13.     [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
  14.     public string ValidateUserLogState()
  15.     {
  16.       string result = "";
  17.       HttpCookie cookie = HttpContext.Current.Request.Cookies["DHFonMenberInfo"];
  18.       if (cookie != null)
  19.       {
  20.         string username = System.Web.HttpUtility.UrlDecode(cookie["MenberName"]);
  21.         int ipoint = 0;
  22.         int gpoint = 0;
  23.         try
  24.         {
  25.           DataTable dt = UserBll.ExecuteUserAllInfo(username);
  26.           if (dt.Rows.Count > 0)
  27.           {
  28.             ipoint = int.Parse(dt.Rows[0]["iPoint"].ToString());
  29.             gpoint = int.Parse(dt.Rows[0]["gPoint"].ToString());
  30.           }
  31.         }
  32.         catch
  33.         { }
  34.         result = "{'user':{'id':'" + cookie["UserId"] + "','name':'" + username + "','message':'" + rp.getUserMsg(DFHon.Global.CurrentCookie.UserName) + "','ipoint':'" + ipoint.ToString() + "','gpoint':'" + gpoint.ToString() + "'}}";
  35.       }
  36.       else
  37.       {
  38.         result = "{'user':{'id':'0','name':'','message':'0','ipoint':'0','gpoint':'0'}}";
  39.       }
  40.       return result;
  41.     }
  42.     [WebMethod]
  43.     [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
  44.     public string UserLogin(string userName, string userPwd)
  45.     {
  46.       string returnVal = "";
  47.       try
  48.       {
  49.         GlobalUserInfo info;
  50.         DFHon.Content.UserLogin _UserLogin = new DFHon.Content.UserLogin();
  51.         EnumLoginState state = _UserLogin.PersonLogin(HttpUtility.UrlDecode(userName), userPwd, out info);
  52.         if (state == EnumLoginState.Succeed)
  53.         {
  54.           DFHon.Global.CurrentCookie.Set(info);
  55.           DFHon.API.PDO.DiscuzNT.PassportLogin.UserLogin(Server.UrlDecode(userName), userPwd, -1);
  56.           int ipoint = 0;
  57.           int gpoint = 0;
  58.           DataTable dt = UserBll.ExecuteUserAllInfo(userName);
  59.           if (dt.Rows.Count > 0)
  60.           {
  61.             ipoint = int.Parse(dt.Rows[0]["iPoint"].ToString());
  62.             gpoint = int.Parse(dt.Rows[0]["gPoint"].ToString());
  63.           }
  64.           returnVal = "{'user':{'id':'" + info.UserId.ToString() + "','name':'" + info.UserName + "','message':'" + rp.getUserMsg(userName) + "','ipoint':'" + ipoint.ToString() + "','gpoint':'" + gpoint.ToString() + "'}}";
  65.         }
  66.         else
  67.         {
  68.           int ids = 0;//状态：-2用户被锁定 -1用户名密码错误
  69.           switch (state)
  70.           {
  71.             case EnumLoginState.Err_Locked:
  72.               ids = -2;
  73.               break;
  74.             case EnumLoginState.Err_UserNameOrPwdError:
  75.               ids = -1;
  76.               break;
  77.             default:
  78.               break;
  79.           }
  80.           returnVal = "{'user':{'id':'" + ids + "','name':'','message':'0','ipoint':'0','gpoint':'0'}}";
  81.         }
  82.       }
  83.       catch
  84.       {
  85.         returnVal = "{'user':{'id':'0','name':'','message':'0','ipoint':'0','gpoint':'0'}}";
  86.       }
  87.       return returnVal;
  88.     }
  89.     [WebMethod]
  90.     public string UserLogout()
  91.     {
  92.       if (HttpContext.Current.Request.Cookies["DHFonMenberInfo"] != null)
  93.       {
  94.         HttpCookie cookie = new HttpCookie("DHFonMenberInfo");
  95.         cookie.Expires = System.DateTime.Now.AddDays(-1);
  96.         cookie.Domain = DFHon.Config.BaseConfig.getV("weblogin");
  97.         HttpContext.Current.Response.AppendCookie(cookie);
  98.       }
  99.       return "1";
  100.     }
  101.     DFHon.Content.user UserBll = new DFHon.Content.user();
  102.     [WebMethod]
  103.     public string ValidateUserEmail(string email)
  104.     {
  105.       string result = "0";//返回的结果 -2邮箱为空 -1邮箱格式不正确 0邮箱存在 1填写正确
  106.       if (string.IsNullOrEmpty(email))
  107.       {
  108.         result = "-2";//邮箱为空
  109.       }
  110.       else if (!IsValidEmail(email))
  111.       {
  112.         result = "-1";//邮箱格式不正确
  113.       }
  114.       else if (UserBll.sel_useremail(email) > 0)
  115.       {
  116.         result = "0";//邮箱存在
  117.       }
  118.       else
  119.       {
  120.         result = "1";//可以注册
  121.       }
  122.       return result;
  123.     }
  124.     [WebMethod]
  125.     public string ValidateUserName(string username)
  126.     {
  127.       string result = "0";//返回值：-1用户名长度为2-16;0用户名存在;1可以注册
  128.       if (username == "" || username == null || username.Length < 2 || username.Length > 16)
  129.       {
  130.         result = "-1";
  131.       }
  132.       else if (UserBll.sel_username(username) != 0)
  133.       {
  134.         result = "0";
  135.       }
  136.       else
  137.       {
  138.         result = "1";
  139.       }
  140.       return result;
  141.     }
  142.     public bool IsValidEmail(string strIn)
  143.     { // Return true if strIn is in valid e-mail format. 
  144.       return System.Text.RegularExpressions.Regex.IsMatch(strIn, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
  145.     }
  146.   }

WebService

  1. <script>
  2.     $(function() {
  3.       $("#userloging").show();
  4.       //登录框处理开始
  5.       //加载登录状态
  6.       $.ajax({
  7.         type: "POST", //访问WebService使用Post方式请求
  8.         contentType: "application/json;charset=utf-8", //WebService 会返回Json类型
  9.         url: "/API/Service/UserValidate.asmx/ValidateUserLogState", //调用WebService
  10.         data: "{}", //Email参数
  11.         dataType: 'json',
  12.         beforeSend: function(x) { x.setRequestHeader("Content-Type", "application/json; charset=utf-8"); },
  13.         error: function(x, e) { },
  14.         success: function(response) { //回调函数，result，返回值
  15.           $("#userloging").hide();
  16.           var json = eval('(' + response.d + ')');
  17.           var userid = json.user.id;
  18.           if (userid > 0) {
  19.             $("#spanusername").html(json.user.name);
  20.             $("#spanmessagenum").html(json.user.message);
  21.             $("#userloginsucced").show();
  22.             $("#userloginbox").hide();
  23.           }
  24.         }
  25.       });
  26.       //登录
  27.       $("#userlogbutton").click(function() {
  28.         
  29.         var username = $("#username").val();
  30.         var userpwd = $("#userpassword").val();
  31.         if (username != "" && userpwd != "") {
  32.           $("#userloging").show();
  33.           $.ajax({
  34.             type: "POST", //访问WebService使用Post方式请求
  35.             contentType: "application/json;charset=utf-8", //WebService 会返回Json类型
  36.             url: "/API/Service/UserValidate.asmx/UserLogin", //调用WebService
  37.             data: "{userName:'" + username + "',userPwd:'" + userpwd + "'}", //Email参数
  38.             dataType: 'json',
  39.             beforeSend: function(x) { x.setRequestHeader("Content-Type", "application/json; charset=utf-8"); },
  40.             error: function(x, e) {
  41.             },
  42.             success: function(result) { //回调函数，result，返回值
  43.               $("#userloging").hide();
  44.               var json = eval('(' + result.d + ')');
  45.               var userid = json.user.id;
  46.               if (userid > 0) {
  47.                 $("#spanusername").html(json.user.name);
  48.                 $("#spanmessagenum").html(json.user.message);
  49.                 $("#userloginsucced").show();
  50.                 $("#userloginbox").hide();
  51.               }
  52.               else {
  53.                 switch (userid) {
  54.                   case -2:
  55.                     alert("用户被锁定！请30分钟后再登录！");
  56.                     $("#username").focus();
  57.                     break;
  58.                   case -1:
  59.                     alert("用户名或密码错误！请核对您的用户名和密码！");
  60.                     $("#userpassword").focus();
  61.                     break;
  62.                   default:
  63.                     alert("登录失败！请核对您的用户名和密码之后重试！");
  64.                     $("#userpassword").focus();
  65.                     break;
  66.                 }
  67.               }
  68.             }
  69.           });
  70.         }
  71.         else if (username == "") {
  72.           alert("用户名不能为空！");
  73.           $("#username").focus();
  74.         }
  75.         else if (userpwd == "") {
  76.           alert("密码不能为空！");
  77.           $("#userpassword").focus();
  78.         }
  79.       });
  80.       //退出
  81.       $("#logout").click(function() {
  82.         $("#userloging").show();
  83.         $.ajax({
  84.           type: "POST", //访问WebService使用Post方式请求
  85.           contentType: "application/json;utf-8", //WebService 会返回Json类型
  86.           url: "/API/Service/UserValidate.asmx/UserLogout", //调用WebService
  87.           data: "{}", //Email参数
  88.           dataType: 'json',
  89.           beforeSend: function(x) { x.setRequestHeader("Content-Type", "application/json; charset=utf-8"); },
  90.           success: function(result) { //回调函数，result，返回值
  91.             $("#userloging").hide();
  92.             if (result.d > 0) {
  93.               $("#userloginsucced").hide();
  94.               $("#userloginbox").show();
  95.             }
  96.           }
  97.         });
  98.       }); //登录框处理结束
  99.     });
  100.     </script>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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