log4j appender自定义_log4j routingappender_fileappender log4j(16)

43StringBuffer sbuf = new StringBuffer(s);

44for (int i = 0; i < sbuf.length(); i++) {

45if (sbuf.charAt(i) >= 0x80) {

46sbuf.setCharAt(i, &#39;?&#39;);

47}

48}

49part = new MimeBodyPart();

50part.setContent(sbuf.toString(), layout.getContentType());

51}

52}

53

54Multipart mp = new MimeMultipart();

55mp.addBodyPart(part);

56msg.setContent(mp);

57

58msg.setSentDate(new Date());

59Transport.send(msg);

60} catch (MessagingException e) {

61LogLog.error("Error occured while sending e-mail notification.", e);

62} catch (RuntimeException e) {

63LogLog.error("Error occured while sending e-mail notification.", e);

64}

65 }

66 protected String formatBody() {

67StringBuffer sbuf = new StringBuffer();

68String t = layout.getHeader();

69if (t != null)

70sbuf.append(t);

71int len = cb.length();

72for (int i = 0; i < len; i++) {

73LoggingEvent event = cb.get();

74sbuf.append(layout.format(event));

75if (layout.ignoresThrowable()) {

76String[] s = event.getThrowableStrRep();

77if (s != null) {

78for (int j = 0; j < s.length; j++) {

79sbuf.append(s[j]);

80sbuf.append(Layout.LINE_SEP);

81}

82}

83}

84}

85t = layout.getFooter();

86if (t != null) {

87sbuf.append(t);

88}

89return sbuf.toString();

90 }

SocketAppender类

SocketAppender将日志消息（LoggingEvent序列化实例）发送到指定Host的port端口。在创建SocketAppender时，SocketAppender会根据设置的Host和端口建立和远程服务器的链接，并创建ObjectOutputStream实例。

1 void connect(InetAddress address, int port) {

2if (this.address == null)

3return;

4try {

5cleanUp();

6oos = new ObjectOutputStream(

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