python統計日誌ip訪問數的方法

本文執行個體講述了python統計日誌ip訪問數的方法。分享給大家供大家參考。具體如下：

import ref=open("/tmp/a.log","r")arr={} lines = f.readlines()for line in lines:   ipaddress=re.compile(r'^#(((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?))')  match=ipaddress.match(line)  if match:     ip = match.group(1)     if(arr.has_key(ip)):       arr[ip]+=1     else:       arr.setdefault(ip,1) f.close() for key in arr:   print key+"->"+str(arr[key])

日誌格式為：

#111.172.249.84 - - [12/Dec/2011:05:33:36 +0800] "GET /images/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)" #111.172.249.84 - - [12/Dec/2011:05:33:36 +0800] "GET /images/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)" #111.172.249.85 - - [12/Dec/2011:05:33:36 +0800] "GET /images/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)" #111.172.249.86 - - [12/Dec/2011:05:33:36 +0800] "GET /images/i/goTop.png HTTP/1.0" 200 486 "http://wh.xxxx.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)" 

輸出結果：

111.172.249.86->1111.172.249.84->2111.172.249.85->1

注釋：python欄位的setdefault用法為擷取資訊，如果擷取不到的時候就按照他的參數設定該值

>>> a={} >>> a['key']='123' >>> print (a) {'key': '123'} >>> print (a.setdefault('key','456'))#顯示a這個字典的'key'值的內容,因為字典有，所以不會去設定它 123 >>> print (a.setdefault('key1','456'))#顯示a這個字典的'key1'值的內容，因為字典沒有，所以設定為456了 456 >>> a {'key1': '456', 'key': '123'} 

希望本文所述對大家的Python程式設計有所協助。

