ssh1y / -httpweb- Goto Github PK

文件结构：
.
├── BasicWebServer.class
├── BasicWebServer.java
├── ClientThread.class
├── ClientThread.java
├── README
├── TCPClient.class
├── TCPClient.java
├── WebRequestHandler.class
├── WebRequestHandler.java
├── conf
│   ├── httpd.conf
│   └── last_modified
├── file.txt
├── file1
│   ├── 1.txt
│   ├── 2.txt
│   ├── QQ.jpg
│   ├── file1.html
│   ├── file2.html
│   ├── file3.html
│   ├── file4.html
│   ├── index.html
│   └── index_m.html
└── file2
    ├── file1.html
    ├── file2.html
    ├── file3.html
    ├── file4.html
    ├── index.html
    └── index_m.html

完成情况：
HTTP Methods: Your server must support HTTP 1.0 (http://www.w3.org/Protocols/HTTP/1.0/spec.html) GET method.

Headers: Your server must send the Last-Modified header and understand the If-Modified-Since header from client. This means that you will need to parse date format. For this assignment, we use the rfc1123-date format. Your server also needs to understand the User-Agent header. For other headers, your server can skip.

URL Mapping: If the URL ends with / without specifying a file name, your server should return index.html if it exists; otherwise it will return Not Found. If the request is for DocumentRoot without specifying a file name and the User-Agent header indicates that the request is from a mobile handset (e.g., it should at least detect iphone by detecting iPhone in the User-Agent string),  it should return index_m.html, if it exists; index.html next, and then Not Found.

Caching: Your server needs to include a basic caching mechanism to speedup handling of requests for static files. The cache is a simple Java Map, with key being the file and content the whole file in an array. Before reading a file from disk, the server checks whether it is already cached. Think: how to handle multiple threads reading and adding to the Map.
The cache size can be specified in the configuration file:

CacheSize <cache size in KBytes>

		其中Header能够识别到User-Agent和If-Modified-Since,但是If-Modified-Since服务器不会做出解析时间的行为，只会输出在header里面