Jquery ajax调用webservice总结

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

      
      
    
在之间加入

      
        
        
      
    

2.正确地编写webserivce的代码

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/// 

    /// UserValidate 的摘要说明
    /// 
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // 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 UserValidate : System.Web.Services.WebService
    {
        DFHon.Content.Common.rootPublic rp = new DFHon.Content.Common.rootPublic();
        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public string ValidateUserLogState()
        {
            string result = "";
            HttpCookie cookie = HttpContext.Current.Request.Cookies["DHFonMenberInfo"];
            if (cookie != null)
            {
                string username = System.Web.HttpUtility.UrlDecode(cookie["MenberName"]);
                int ipoint = 0;
                int gpoint = 0;
                try
                {
                    DataTable dt = UserBll.ExecuteUserAllInfo(username);

                    if (dt.Rows.Count > 0)
                    {
                        ipoint = int.Parse(dt.Rows[0]["iPoint"].ToString());
                        gpoint = int.Parse(dt.Rows[0]["gPoint"].ToString());
                    }
                }
                catch
                { }
                result = "{'user':{'id':'" + cookie["UserId"] + "','name':'" + username + "','message':'" + rp.getUserMsg(DFHon.Global.CurrentCookie.UserName) + "','ipoint':'" + ipoint.ToString() + "','gpoint':'" + gpoint.ToString() + "'}}";
            }
            else
            {
                result = "{'user':{'id':'0','name':'','message':'0','ipoint':'0','gpoint':'0'}}";
            }
            return result;
        }

        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public string UserLogin(string userName, string userPwd)
        {
            string returnVal = "";
            try
            {
                GlobalUserInfo info;
                DFHon.Content.UserLogin _UserLogin = new DFHon.Content.UserLogin();
                EnumLoginState state = _UserLogin.PersonLogin(HttpUtility.UrlDecode(userName), userPwd, out info);
                if (state == EnumLoginState.Succeed)
                {
                    DFHon.Global.CurrentCookie.Set(info);
                    DFHon.API.PDO.DiscuzNT.PassportLogin.UserLogin(Server.UrlDecode(userName), userPwd, -1);
                    int ipoint = 0;
                    int gpoint = 0;
                    DataTable dt = UserBll.ExecuteUserAllInfo(userName);

                    if (dt.Rows.Count > 0)
                    {
                        ipoint = int.Parse(dt.Rows[0]["iPoint"].ToString());
                        gpoint = int.Parse(dt.Rows[0]["gPoint"].ToString());
                    }
                    returnVal = "{'user':{'id':'" + info.UserId.ToString() + "','name':'" + info.UserName + "','message':'" + rp.getUserMsg(userName) + "','ipoint':'" + ipoint.ToString() + "','gpoint':'" + gpoint.ToString() + "'}}";
                }
                else
                {
                    int ids = 0;//状态：-2用户被锁定 -1用户名密码错误
                    switch (state)
                    {
                        case EnumLoginState.Err_Locked:
                            ids = -2;
                            break;
                        case EnumLoginState.Err_UserNameOrPwdError:
                            ids = -1;
                            break;
                        default:
                            break;
                    }
                    returnVal = "{'user':{'id':'" + ids + "','name':'','message':'0','ipoint':'0','gpoint':'0'}}";
                }
            }
            catch
            {
                returnVal = "{'user':{'id':'0','name':'','message':'0','ipoint':'0','gpoint':'0'}}";
            }
            return returnVal;
        }
        [WebMethod]
        public string UserLogout()
        {
            if (HttpContext.Current.Request.Cookies["DHFonMenberInfo"] != null)
            {
                HttpCookie cookie = new HttpCookie("DHFonMenberInfo");
                cookie.Expires = System.DateTime.Now.AddDays(-1);
                cookie.Domain = DFHon.Config.BaseConfig.getV("weblogin");
                HttpContext.Current.Response.AppendCookie(cookie);
            }
            return "1";
        }
        DFHon.Content.user UserBll = new DFHon.Content.user();
        [WebMethod]
        public string ValidateUserEmail(string email)
        {
            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
            if (string.IsNullOrEmpty(email))
            {
                result = "-2";//邮箱为空
            }
            else if (!IsValidEmail(email))
            {
                result = "-1";//邮箱格式不正确
            }
            else if (UserBll.sel_useremail(email) > 0)
            {
                result = "0";//邮箱存在
            }
            else
            {
                result = "1";//可以注册
            }
            return result;
        }

        [WebMethod]
        public string ValidateUserName(string username)
        {
            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
            if (username == "" || username == null || username.Length < 2 || username.Length > 16)
            {
                result = "-1";
            }
            else if (UserBll.sel_username(username) != 0)
            {
                result = "0";
            }
            else
            {
                result = "1";
            }
            return result;
        }

        public bool IsValidEmail(string strIn)
        { // Return true if strIn is in valid e-mail format. 
            return System.Text.RegularExpressions.Regex.IsMatch(strIn, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
        }
    }

WebService

WebService

ajax