For some reason, in our application, it will encounter a user who can log in in one place, that is, the single sign-on of us usually said. Implementing a single sign in ASP.NET is actually simple, and the main methods and all code are analyzed below.
Implementation
With the function of cache, we save the user's login information in cache and set the time for the expiration time for the session failure. Therefore, once the session invalid, our Cache has expired; and Cache can access all users, so It is convenient to use it to save user information than the database.
View example
SINGLOGIN.ASPX code
<% @ Page language = "c #" codebehind = "singlelogin.aspx.cs" autoeventwireup = "false" inherits = "EMENG.EXAM.SINGLOGIN"%>
Single sign-on test </ title> <meta http-equiv =" content-type "content =" text / html; charSet = GB2312> <meta http-equiv = "Author" content = "Menciic E Chapter"> <meta http-equiv = "Website" Content = "http://dotnet.aspx.cc/> <style> h3 {font: 17px Song} Input {FONT: 12px} span {font: 12px Song} P {font: 12px Song} H4 {font: 12px Song} </ style> </ head> <body ms_positioning = "gridLayout"> <form id = "form1" method = " POST "runat =" server "> <div align =" center "> <h3> single sign-on test </ h3> <p> user name: <asp: textbox id =" username "runat =" server "> </ ASP: TEXTBOX> </ P> <P> User Password: <asp: TextBox ID = "Password" runat = "server" textmode = "password"> </ asp: textbox> </ p> <p> <asp: Button ID = "login" runat = "server" text = "login"> </ asp: button> </ p> <p> <asp: label id = "msg" runat = "server"> </ asp: Label> </ p> </ div> </ form> </ body> </ html> SingleLogin.aspx.cs code</p>
<p>using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Drawing; using System.Web; using System.Web.SessionState; using System.Web.UI; using System.Web.UI.WebControls Using system.web.ui.htmlcontrols; Namespace Emeng.exam {/// <summary> /// SingLogin's summary description. Single sign-/// /// </ summary> public class SingleLogin: System.Web.UI.Page {protected System.Web.UI.WebControls.TextBox UserName; protected System.Web.UI.WebControls.TextBox PassWord; Protected system.Web.ui.WebControls.Label Msg; protected system.web.ui.webcontrols.button login</p>
<p>Private void page_load (object sender, system.eventargs e) {// actual example can be accessed: // http://dotnet.aspx.cc/exam/singLogin.aspx}</p>
<p>#Region Web Form Designer Generated Code Override Protected Void OnNit (Eventargs E) {InitializationComponent (); Base.onInit (E);</p>
<p>/// <summary> /// Designer supports the required method - do not use the code editor to modify the // / this method. /// </ summary> private () {this.login.click = new system.eventhandler (this.login_click); this.load = new system.eventhandler (this.page_load);} # endregion</p>
<p>Private void login_click (object sender, system.eventargs e) {// as a unique identifier, it should be unique, which can set the rules as needed. // is a test, here is used to identify the combination of username and password; no other error check.</p></div><div class="text-center mt-3 text-grey">
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var debug = DEBUG = 0;
var url_rewrite_on = 1;
var url_path = './';
var forumarr = {"1":"Tech"};
var fid = 1;
var uid = 0;
var gid = 0;
xn.options.water_image_url = 'view/img/water-small.png';
</script><script src="view/js/wellcms.js?2.2.0"></script><a class="scroll-to-top rounded" href="javascript:void(0);"><i class="icon-angle-up"></i></a><a class="scroll-to-bottom rounded" href="javascript:void(0);" style="display: inline;"><i class="icon-angle-down"></i></a></body></html><script>
var forum_url = 'list-1.html';
var safe_token = 'CkhrkcdNxc56_2Bbg_2B4EiqL_2BB_2BWT96cNG9cKOW4mBhJN4wbvRFlHLu48WFbd212BTjftl6nbmiH0qU74hK';
var body = $('body');
body.on('submit', '#form', function() {
var jthis = $(this);
var jsubmit = jthis.find('#submit');
jthis.reset();
jsubmit.button('loading');
var postdata = jthis.serializeObject();
$.xpost(jthis.attr('action'), postdata, function(code, message) {
if(code == 0) {
location.reload();
} else {
$.alert(message);
jsubmit.button('reset');
}
});
return false;
});
function resize_image() {
var jmessagelist = $('div.message');
var first_width = jmessagelist.width();
jmessagelist.each(function() {
var jdiv = $(this);
var maxwidth = jdiv.attr('isfirst') ? first_width : jdiv.width();
var jmessage_width = Math.min(jdiv.width(), maxwidth);
jdiv.find('img, embed, iframe, video').each(function() {
var jimg = $(this);
var img_width = this.org_width;
var img_height = this.org_height;
if(!img_width) {
var img_width = jimg.attr('width');
var img_height = jimg.attr('height');
this.org_width = img_width;
this.org_height = img_height;
}
if(img_width > jmessage_width) {
if(this.tagName == 'IMG') {
jimg.width(jmessage_width);
jimg.css('height', 'auto');
jimg.css('cursor', 'pointer');
jimg.on('click', function() {
});
} else {
jimg.width(jmessage_width);
var height = (img_height / img_width) * jimg.width();
jimg.height(height);
}
}
});
});
}
function resize_table() {
$('div.message').each(function() {
var jdiv = $(this);
jdiv.find('table').addClass('table').wrap('<div class="table-responsive"></div>');
});
}
$(function() {
resize_image();
resize_table();
$(window).on('resize', resize_image);
});
var jmessage = $('#message');
jmessage.on('focus', function() {if(jmessage.t) { clearTimeout(jmessage.t); jmessage.t = null; } jmessage.css('height', '6rem'); });
jmessage.on('blur', function() {jmessage.t = setTimeout(function() { jmessage.css('height', '2.5rem');}, 1000); });
$('#nav li[data-active="fid-1"]').addClass('active');
</script>
