Jquery ajax调用webservice总结-白红宇

Jquery ajax调用webservice总结

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发布时间：2019-06-12

本文共 6329 字，大约阅读时间需要 21 分钟。

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

</httpHandlers>

在<system.web></system.web>之间加入

</protocols>

</webServices>

2.正确地编写webserivce的代码

///     /// 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-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");        }    }

3、前台JQuery代码