Java 记录 日志，log，
public class LogUtil{ private static Logger log = Logger.getLogger(LogUtil.class.getName()); private static Handler fileHandler = null; static { try { String logfile = (new File(ServiceAccess.getSystemSupportService().getDeployedPar("an-commonsh-ftpcsv-emf").getBaseDir())) .getAbsolutePath() + File.separator + "log" + File.separator + "ftpcsv%g.log"; // String dirPath = CommonUtil.getDeployedParBaseDir("zxnm01-northbound"); // String logfile = (new File((new File(dirPath)).getParent())).getParent() + File.separator + "log" + File.separator + "tl1" + // File.separator +"tl1agent_AlarmTrace%g.log"; fileHandler = new FileHandler(logfile, 5000000, 5, true); // fileHandler = new FileHandler(CommonUtil.getNetNumenHomeDir() + "/ums-svr/log/tl1agent_AlarmTrace%g.log" ,10000,11,true); fileHandler.setLevel(Level.INFO); fileHandler.setFormatter(new CustomFormatter()); } catch(Exception ex) { } log.addHandler(fileHandler); } public static void info(String loginfo) { log.info(loginfo); }}public class CustomFormatter extends Formatter{ // 时间 private Date dat = new Date(); // 参数 private Object[] args = new Object[1]; // 消息格式化器 private MessageFormat formatter = null; // 时间参数 private String format = "{0,date} {0,time}"; // 行分格符 private String lineSeparator = (String)AccessController.doPrivileged(new sun.security.action.GetPropertyAction("line.separator")); public String format(LogRecord record) { StringBuffer sb = new StringBuffer(); dat.setTime(record.getMillis()); args[0] = dat; StringBuffer text = new StringBuffer(); if(formatter == null) { formatter = new MessageFormat(format); } formatter.format(args, text, null); sb.append(text); sb.append(" "); String message = formatMessage(record); sb.append(message); sb.append(lineSeparator); printWriterLog(record, sb); return sb.toString(); } private void printWriterLog(LogRecord record, StringBuffer sb) { if(record.getThrown() != null) { try { StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); record.getThrown().printStackTrace(pw); pw.close(); sb.append(sw.toString()); } catch(Exception ex) { } } }}