在asp页面中创建方法前饼干 [英] create method fore cookies in asp pages

问题描述

//这个代码在新类中称为实用程序，而不是在表单加载中，当我需要在实用程序类中编写请求或响应时，它从未写过响应或请求，我只看到httpresponse我需要看到响应，我希望你详细解释一下这究竟是什么，所以没有错误，并在实用程序类中执行>>>>>>>>请看下面的评论。





公共类实用程序

{



public void createCookie（string cookieName，string [] keys，string [] values，bool expired）

{



HttpCookie c = new HttpCookie（cookieName）;

if（keys！= null）

{

for（int x = 0; x& lt; keys.Length; x ++）

c.Values.Add（keys [x]，values [x]）;

if（！expired）

c.Expires = DateTime.Now.AddYears（5）;

}

else

c.Expires = DateTime.Now.AddYears（-5）;

//查看此步骤>>>>>>>

res.Cookies。添加（c）;





}



public string readFromCookies（ string cookieName，string key，HttpRequest req）

{

try

{

返回req.Cookies [cookieName] [key] .ToString（）;

}

catch

{

返回null;

}

}



public void removeCookie（ string cookieName，HttpResponse res）

{

//并查看此步骤>>>>>>>>>> >>>>>

createCookie（cookieName，null，null，false，res）;



}







}< / pre>

//this code in new class called utility , not in form load , when i need to write request or response in utility class it never written just "response or request " , i see only httpresponse i need to see just response , I hope that you explain to me in detail what exactly do so there are not mistakes, and execute in utilitys class >>>>>>>> look in Comment below.


public class utilitys
{

public void createCookie(string cookieName, string[] keys, string[] values, bool expired)
{

HttpCookie c = new HttpCookie(cookieName);
if (keys != null)
{
for (int x = 0; x &lt; keys.Length; x++)
c.Values.Add(keys[x], values[x]);
if (!expired)
c.Expires = DateTime.Now.AddYears(5);
}
else
c.Expires = DateTime.Now.AddYears(-5);
// look in this step >>>>>>>
res.Cookies.Add(c);


}

public string readFromCookies(string cookieName, string key, HttpRequest req)
{
try
{
return req.Cookies[cookieName][key].ToString();
}
catch
{
return null;
}
}

public void removeCookie(string cookieName, HttpResponse res)
{
// and look in this step >>>>>>>>>>>>>>>
createCookie(cookieName, null, null, false, res);

}



}</pre>

推荐答案

你可以用createCookie方法中的HttpContext.Current.Response替换res

you can replace res with HttpContext.Current.Response in createCookie method

HttpContext.Current.Response.Cookies.Add(c);

或

你可以在方法中添加新的HttpResponse参数并将其作为参数传递给方法

OR
you can add new HttpResponse parameter to the method and pass it to the method as parameter

 public void createCookie(string cookieName, string[] keys, string[] values, bool expired, HttpResponse res)
{
    HttpCookie c = new HttpCookie(cookieName);
    if (keys != null)
    {
        for (int x = 0; x < keys.Length; x++)
            c.Values.Add(keys[x], values[x]);
        if (!expired)
            c.Expires = DateTime.Now.AddYears(5);
    }
    else
        c.Expires = DateTime.Now.AddYears(-5);
    // look in this step >>>>>>>
    res.Cookies.Add(c);
}

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