當客戶造訪網站時就去讀這個文件,將伺服器重新啟動前的計數讀入,並在此基礎上增加1,然後將新的計數寫入到文件中。
參考代碼如下:
<head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Insert title here</title> </head> <body> <%! int number = 0; File file = new File("count.txt"); synchronized void countPeople() { if(!file.exists()) { number++; try{ file.createNewFile(); FileOutputStream out = new FileOutputStream("count.txt"); DataOutputStream dataOut = new DataOutputStream(out); dataOut.writeInt(number); dataOut.close(); }catch(IOException ex){} } else try{ FileInputStream in = new FileInputStream("count.txt"); DataInputStream dataIn = new DataInputStream(in); number = dataIn.readInt(); number++; in.close(); dataIn.close(); FileOutputStream out = new FileOutputStream("count.txt"); DataOutputStream dataOut = new DataOutputStream(out); dataOut.writeInt(number); out.close(); dataOut.close(); }catch(IOException ex){} } %> <% countPeople(); %> <p> 您是第 <%=number %> 个访问网站的客户。 </p> </body> </html>
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支PHP中文網
更多Java web網站訪問量的統計相關文章請關注PHP中文網!