General mode for. NET Logins

Ideas:

1. Check Login:

private String Checklogin (HttpContext context) {    Model.tuser Model = (model.tuser) context. session["Usermodel"];    if (model = = null)    {        return "{\" msg\ ": \" 0\ ", \" msgbox\ ": \" is currently exiting \ "}";    }    else    {        return "{\" msg\ ": \" 1\ ", \" msgbox\ ": \" current login \ "}";}    

2. Click Login:

private String Login (HttpContext context) {BLL. TUser _blluser = new BLL.    TUser (); String loginname = context.    request.params["LoginName"]; String Password = context.    request.params["Password"]; String Issave = context. request.params["Issave"];//whether to save the password Model.tuser model_user = _blluser.    Getmodel ("userlogin=" + loginname + "'");    BOOL issuccess = false;    String cookiespassword = ""; Determine if the cookie exists if (httpcontext.current.request.cookies["password"]! = null) {Cookiespassword = Httpcontex t.current.request.cookies["Password"].        Value;        if (password = = Cookiespassword)///input and the same as the cookie password {//login successful issuccess = true; }}//Determine if the password entered and whether the database matches if (!issuccess) {if (password = = Model_user.        PassWord) {//Login succeeded issuccess = true;        } else {//Login failed issuccess = false; }} if (issuccess) {context. session["Usermodel"]= Model_user;    } else {//Login failed password not return "{\" msg\ ": \" 0\ ", \" msgbox\ ": \" password error \ "}";        }//To save, write cookie if (Issave = = "true") {HttpCookie cookielogin = new HttpCookie ("LoginName");        Cookielogin.expires = DateTime.Now.AddDays (10); Cookielogin.value = Model_user.        Userlogin;        HTTPCONTEXT.CURRENT.RESPONSE.COOKIES.ADD (Cookielogin);        HttpCookie Cookiepassword = new HttpCookie ("password");        Cookiepassword.expires = DateTime.Now.AddDays (10);        Cookiepassword.value = password;    HTTPCONTEXT.CURRENT.RESPONSE.COOKIES.ADD (Cookiepassword);        } else {//Set cookie expires, delete cookie HttpCookie cookielogin = new HttpCookie ("LoginName");        Cookielogin.expires = DateTime.Now.AddDays (-1);        HTTPCONTEXT.CURRENT.RESPONSE.COOKIES.ADD (Cookielogin);        HttpCookie Cookiepassword = new HttpCookie ("password");        Cookiepassword.expires = DateTime.Now.AddDays (-1); HTTPCONTEXT.CURRENT.RESPONSE.COOKIES.ADD (Cookiepassword); } return "{\" msg\ ": \" 1\ ", \" msgbox\ ": \" Login succeeded \ "}";}

3, the page refresh when the user saved account name and password and do not log in

private String Issaveuserlogin (HttpContext context) {///determine if the cookie exists if (httpcontext.current.request.cookies["log Inname "] = = NULL | | httpcontext.current.request.cookies["password"] = = null) {return "{\" msg\ ":-1, \" msgbox\ ": \" account not saved \ ", \" Loginna    Me\ ": \" \ ", \" password\ ": \" \ "}"; } else {string loginname = httpcontext.current.request.cookies["LoginName"].        Value; string password = httpcontext.current.request.cookies["Password"].        Value;        Free Landing cookielogin (context, loginname, password);    Return "{\" msg\ ": 1, \" msgbox\ ": \" account saved \ ", \" loginname\ ": \" "+ LoginName +" \ ", \" password\ ": \" "+ Password +" \ "}"; }}private void Cookielogin (HttpContext context, String Cookiesloginname, String cookiespassword) {Model.tuser Model_us    ER = new Model.tuser (); Bll. TUser _blluser = new BLL.    TUser ();    BOOL issuccess = false; Determine if the cookie exists if (!string. IsNullOrEmpty (cookiesloginname) &&!string. IsNullOrEmpty (Cookiespassword) {Model_user = _blluser.        Getmodel ("userlogin=" + cookiesloginname + "'"); if (Model_user.        PassWord = = Cookiespassword)//database and the same as the cookie password {//login successful issuccess = true; }} if (issuccess) {//Login successful context.    session["Usermodel"] = Model_user;    The else {//Login failed password is not//return "{\" msg\ ": \" 0\ ", \" msgbox\ ": \" password error \ "}"; }}

4. User exit-Clear cookies and session

private String UserExit (HttpContext context) {    //clear Cookie    //httpcontext.current.request.cookies.clear ();// Invalid    HttpCookie cookielogin = new HttpCookie ("LoginName");    Cookielogin.expires = DateTime.Now.AddDays ( -1);    HTTPCONTEXT.CURRENT.RESPONSE.COOKIES.ADD (cookielogin);    HttpCookie Cookiepassword = new HttpCookie ("password");    Cookiepassword.expires = DateTime.Now.AddDays ( -1);    HTTPCONTEXT.CURRENT.RESPONSE.COOKIES.ADD (Cookiepassword);    Context. session["Usermodel"] = null;    Context. Session.clear ();    Return "";}

General mode for. NET Logins