HTTP概述
HTTP(HyperText Transfer Protocol,超文本传输协议),设计HTTP最初的目的是为了提供一种发布和接收HTML页面的方法。
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HTTP定义了多种请求方法,常用的包括:
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GET:请求资源。
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POST:提交数据。
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PUT:更新资源。
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DELETE:删除资源。
HTTP实验
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我们使用一个路由器来模拟客户端
cpp
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname Client
[Client]interface G0/0/0
[Client-GigabitEthernet0/0/0]ip address 192.168.1.1 24
Server配置
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选择文件根目录,然后启动HTTP服务
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使用路由器去发送GET请求
cpp
[Client]http get url 192.168.1.2
Http getting 192.168.1.2[192.168.1.2]:
1:packets interaction time 20 ms,the link reachable
2:packets interaction time 90 ms,the link reachable
3:packets interaction time 110 ms,the link reachable
4:packets interaction time 90 ms,the link reachable
5:packets interaction time 90 ms,the link reachable
--- http get result statistics ---
Http Get 5 time(s),succeed 5 time(s),failed 0 time(s).
round-trip min/avg/max = 90/80/110 ms.
测试访问是没问题的。
但是http是明文传输,所以接口抓包,我们就能看到
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我们能直接看到HTTP的,传输的页面内容。
我还可以访问我的一个文件试一试(路径填写你的HTTP服务器,目录下有的文件)
cpp
[Client]http get url 192.168.1.2/desktop.ini
Http getting 192.168.1.2/desktop.ini[192.168.1.2]:
1:packets interaction time 60 ms,the link reachable
2:packets interaction time 90 ms,the link reachable
3:packets interaction time 90 ms,the link reachable
4:packets interaction time 100 ms,the link reachable
5:packets interaction time 90 ms,the link reachable
--- http get result statistics ---
Http Get 5 time(s),succeed 5 time(s),failed 0 time(s).
round-trip min/avg/max = 90/86/100 ms.
再来看看看抓包
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传输的文件内容,都是明文的,验证了HTTP是明文传输。