java 日誌的一種寫法

public void writeLog(String logFileName, String content) {<br /> try {<br /> /* 記錄檔大小最大為100KB */<br /> File log = new File(logFileName);<br /> if (log.length() > 102400) {<br /> if (log.delete())<br /> logger.info("記錄檔: " + logFileName + " 已滿, 已經自動清空.");<br /> }<br /> SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss ");<br /> RandomAccessFile raf = new RandomAccessFile(logFileName, "rw");<br /> String contents = sdf.format(new Date()) + content + "/r/n";<br /> raf.seek(raf.length());<br /> raf.write(contents.getBytes("GBK"));<br /> raf.close();<br /> } catch (FileNotFoundException e) {<br /> e.printStackTrace();<br /> } catch (IOException e) {<br /> e.printStackTrace();<br /> }<br /> }<br />調用這個函數就行了,