思路：通过 socket 接收字节流，判断是否为 http 协议格式，若是，进行路由处理，从磁盘读取文件并通过 socket 发送给客户端，完整代码如下：
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
import socket # 导入 socket 模块
static_dir = "./public" # 静态资源目录
s = socket.socket() # 创建 socket 对象
port = 10002 # 设置端口
s.bind(("0.0.0.0", port)) # 绑定端口
s.listen(5) # 等待客户端连接
print("服务器已启动于 http://127.0.0.1:" + str(port))
# 获取到请求之后进行解析
def router(req_str):
req_head_arr = req_str.split("\n")
res_byte = b"" # 响应头的字节流
if req_head_arr[0][:5] != "GET /": # 通过读请求头判断是否是http协议
return res_byte
req_path = req_head_arr[0].split(" ")[1] # 根据空格进行切割，拿到请求头上的路径
print(req_path) # 打印get请求路径
if req_path == "/":
req_path = "/index.html"
mime_type = ""
try:
mime_type = req_path.split(".")[1] # 截取请求的mime类型
except:
mime_type = ""
content_type = "" # 响应头的mime类型
# 设置响应头mime
if mime_type == "jpg":
content_type = "image/jpg"
elif mime_type == "png":
content_type = "image/png"
elif mime_type == "gif":
content_type = "image/gif"
elif mime_type == "css":
content_type = "text/css"
elif mime_type == "js":
content_type = "text/javascript"
elif mime_type == "html":
content_type = "text/html"
elif mime_type == "json":
content_type = "application/json"
elif mime_type == "mp4":
content_type = "video/mp4"
elif mime_type == "mp3":
content_type = "audio/mp3"
elif mime_type == "ico":
content_type = "image/vnd.microsoft.icon"
elif mime_type == "zip":
content_type = "application/zip"
elif mime_type == "7z":
content_type = "application/x-7z-compressed"
elif mime_type == "rar":
content_type = "application/vnd.rar"
# 从磁盘读取文件
try:
with open(static_dir + req_path, "rb") as fp:
res_byte = (
"HTTP/1.1 200 OK \nContent-Type: " + content_type + "\n\n"
).encode() + fp.read()
except:
res_byte = (
"HTTP/1.1 200 OK \nContent-Type: text/plain\n\n 404 not found".encode()
)
return res_byte
while True:
c, addr = s.accept() # 建立客户端连接
print("连接地址：", addr)
str = c.recv(4096).decode()
c.send(router(str)) # 接受到请求后调用 路由函数进行处理，并发送响应
c.close() # 关闭客户端连接
s.close()
