T3：實(shí)現(xiàn)圖書館管理系統(tǒng)的登錄資料

1、第第3講講：實(shí)現(xiàn)圖書館管理系統(tǒng)的登錄：實(shí)現(xiàn)圖書館管理系統(tǒng)的登錄講師：風(fēng)舞煙JavaScript-JQuery系列全程精通系列全程精通+圖書館管理系統(tǒng)實(shí)戰(zhàn)圖書館管理系統(tǒng)實(shí)戰(zhàn)登錄界面及后臺(tái)功能實(shí)現(xiàn)ASP.net三層的寫法ASP.net Cookie的運(yùn)用jQuery 中$.getJSON方法綜合運(yùn)用ASP.net三層的寫法Step1:DAL層UserInfoService.cs public static UserInfo GetUserInfoByUserName(string uid) string strsql = string.Format(select * from UserInfo w

2、here UserName=0,uid); try return GetUserInfosBySql(strsql)0; catch return null; Step2:BLL層UserInfoManager.cspublic static bool Login(string uid, string pwd, out UserInfo user) UserInfo userinfo = DAL.UserInfoService.GetUserInfoByUserName(uid); if (userinfo != null) bool result = userinfo.UserPwd = p

3、wd; if (result) user = userinfo; else user = null; return result; else user = null; return false; Step3:界面層HTML(Login.aspx)Step4:引入CSS Step5:引入JSStep5:引入JSStep6:編寫后臺(tái)A代碼(LoginHandler.aspx): if (Requestuid != null & Requestpwd != null) string uid = Requestuid.ToString(); string pwd = Requestpwd.To

4、String(); string template = success:0,error:1; Models.UserInfo userinfo = null; if (BLL.UserInfoManager.Login(uid, pwd, out userinfo) Sessionuser = userinfo; Response.Write( + string.Format(template, 1, ) + ); else Response.Write( + string.Format(template, 0, 用戶名或密碼錯(cuò)誤！) + ); Step7:編寫jQuery代碼代碼片斷1: $

5、(#saveForm).click(function() var uid = $(#email).val(); var pwd = $(#password).val(); var remember = $(#remember).attr(checked) = true ? 1 : 0; $.getJSON(Handler/LoginHandler.aspx, uid: uid, pwd: pwd, remember: remember , function(data) if (data.success = 0) $(#loading).fadeOut(1000, function() $(#l

6、bContent).fadeTo(10, 1, function() $(ulli:first, #loginForm).addClass(error); $(#myerror).show(100, function() $(#saveForm).removeAttr(disabled); $(#btnReset).removeAttr(disabled); ); ); ); 代碼片斷2:else $(#loading).fadeOut(1000, function() $(#lbContent).fadeTo(10, 1, function() $(ulli:first, #loginFor

7、m).removeClass(error); $(#myerror).hide(100, function() $(#lightbox).fadeOut(slow, function() location.href = main/FrmMain.aspx; ); ); ); ); / location.href = main/FrmMain.aspx; ); );代碼片斷3:$(#loading).ajaxStart(function() $(ulli:first, #loginForm).removeClass(error); $(#myerror).hide(); $(#saveForm)

8、.attr(disabled, true); $(#btnReset).attr(disabled, true); var $oLoading = $(this); $oLoading.fadeIn(); $(#lbContent).fadeTo(1000, 0.5); ).ajaxError(function(xhr, s, e) alert(ajaxError); );代碼片斷4:$(#btnReset).click(function() $(ulli:first, #loginForm).removeClass(error); $(#myerror).hide(); $(form).tr

9、igger(reset); );Step8:后臺(tái)加入Cookie支持if (BLL.UserInfoManager.Login(uid, pwd, out userinfo) Sessionuser = userinfo; if (Requestremember != null) int remember = int.Parse(Request.QueryStringremember); if (remember = 1) HttpCookie cookie = new HttpCookie(user, uid); cookie.Expires = DateTime.Now.AddHours(1); Res