Question

如何轻松测试HTTP返回码，例如301重定向？

例如，如果我想“看看发生了什么”，我可以使用 telnet 来做这样的事情：

... $ telnet nytimes.com 80

Trying 199.239.136.200...
Connected to nytimes.com.
Escape character is '^]'.

GET / HTTP / 1.0

（输入）

（适用输入）

HTTP/1.1 200 OK
Server: Sun-ONE-Web-Server/6.1
Date: Mon, 14 Jun 2010 12:18:04 GMT
Content-type: text/html
Set-cookie: RMID=007af83f42dd4c161dfcce7d; expires=Tuesday, 14-Jun-2011 12:18:04 GMT; path=/; domain=.nytimes.com
Set-cookie: adxcs=-; path=/; domain=.nytimes.com
Set-cookie: adxcs=-; path=/; domain=.nytimes.com
Set-cookie: adxcs=-; path=/; domain=.nytimes.com
Expires: Thu, 01 Dec 1994 16:00:00 GMT
Cache-control: no-cache
Pragma: no-cache
Connection: close

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>    
<head>      
...

这是访问相关信息的简便方法。

但现在我想测试301重定向确实是301重定向。

我该怎么办？

基本上，我不想获得 HTTP / 1.1 200 OK ，而是想知道如何获得301？

我知道我可以在浏览器中输入URL的名称并“看到”我已重定向，但我想知道可以使用哪些工具来真正“看到”301重定向。

顺便说一下，我用telnet进行了测试，但是当我进入www.example.org时，我将其重定向到example.org（没有www），我只能看到“200 OK”，我不要看301.

Answer 1

我认为更方便的解决方案是使用Curl。

简单地运行：

$ curl -I http://example.com

它会像这样返回HTTP标头

HTTP/1.1 302 Moved Temporarily
Server: nginx/1.1.19
Date: Sun, 21 Jul 2013 10:41:47 GMT
Content-Type: text/html
Content-Length: 161
Connection: keep-alive
Location: https://other.example.com/

Answer 2

好的，回答问题两分钟后我找到了答案......

执行以下操作无效：

telnet www.example.org 80
GET / HTTP/1.0
{enter}
{enter}

但以下工作正常：

telnet example.org 80
GET / HTTP/1.0
Host: www.example.org
{enter}
{enter}

我的错误是将 www.example.org 传递给 telnet （而不是 example.org ），然后没有指定任何“主持人：”。

现在它有效，我明白了：

Connected to xxx.xx
Escape character is '^]'.
GET / HTTP/1.0
Host: www.example.org

HTTP/1.1 301 Moved Permanently
Server: Apache-Coyote/1.1
Location: http://example.org/
Connection: close
Date: Mon, 14 Jun 2010 13:02:22 GMT
Connection: close

Connection closed by foreign host.

注意：在Windows Vista / 7上，默认情况下不安装Telnet客户端。要安装它，请按照此处的说明进行操作：Install Telnet Client - Microsoft TechNet

Answer 3

Firefox插件HTTP Live headers非常有用。

Answer 4

在（telnet响应的）标题中，您将在第一行中看到它：

HTTP/1.1 301 Moved Permanently
Via: XXXXXXXXXXX
Connection: close
Proxy-Connection: close
Content-Length: 0
Date: Mon, 14 Jun 2010 13:03:14 GMT
Location: /xxxxxxxxx
Server: XXXXXXX
Cache-Control: private

由于

Answer 5

为此，我使用Firebug的Net panel。

alt text

Answer 6

测试它的一种方法是在目标网站上指定301重定向，并使用curl -L选项通知301重定向。

-L, --location

(HTTP) If the server reports that the requested page has moved to a different 
location (indicated with a Location: header and a 3XX response code), this option 
will make curl redo the request on the new place.

例如：

:~$ curl -IL mail.com

你得到：

HTTP/1.1 301 Moved Permanently
Date: Tue, 07 Feb 2017 13:17:12 GMT
Server: Apache
Location: https://www.mail.com/
Vary: Accept-Encoding
Connection: close
Content-Type: text/html; charset=iso-8859-1

HTTP/1.1 302 Found
Date: Tue, 07 Feb 2017 13:17:13 GMT
Server: Apache
Vary: X-Forwarded-Proto,Host
Set-Cookie: cookieKID=kid%40autoref%40mail.com; Domain=.mail.com; Expires=Thu, 09-Mar-2017 13:17:13 GMT; Path=/
Set-Cookie: cookiePartner=kid%40autoref%40mail.com; Domain=.mail.com; Expires=Thu, 09-Mar-2017 13:17:13 GMT; Path=/
Cache-Control: no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Location: https://www.mail.com/int/
Content-Language: en-US
Connection: close

HTTP/1.1 200 OK
Date: Tue, 07 Feb 2017 13:17:13 GMT
Server: Apache
Vary: X-Forwarded-Proto,Host,Accept-Encoding
Set-Cookie: cookieKID=kid%40autoref%40mail.com; Domain=.mail.com; Expires=Thu, 09-Mar-2017 13:17:13 GMT; Path=/
Set-Cookie: cookiePartner=kid%40autoref%40mail.com; Domain=.mail.com; Expires=Thu, 09-Mar-2017 13:17:13 GMT; Path=/
Cache-Control: no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Set-Cookie: JSESSIONID=964DA3BD186E264928A8C188E3BB919D; Path=/mailcom-webapp/; HttpOnly
Content-Language: en-INT
Content-Length: 74356
Connection: close
Content-Type: text/html;charset=UTF-8

如何测试HTTP 301重定向？

6 个答案: