log email的使用.

HTML格式:

package com.just.zb.email.log;
	import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.log4j.Layout;
import org.apache.log4j.Level;
import org.apache.log4j.helpers.Transform;
import org.apache.log4j.spi.LocationInfo;
import org.apache.log4j.spi.LoggingEvent;

	
	public class EmailHTMLLayout extends Layout
	{
	  protected   int BUF_SIZE = 256;
	  protected   int MAX_CAPACITY = 1024;
	  static String TRACE_PREFIX = "<br>&nbsp;&nbsp;&nbsp;&nbsp;";
	  private StringBuffer sbuf;
	
	  /** @deprecated */
	  public static final String LOCATION_INFO_OPTION = "LocationInfo";
	  public static final String TITLE_OPTION = "Title";
	  boolean locationInfo;
	  String title;
	
	  public EmailHTMLLayout()
	  {
	    this.BUF_SIZE = 256;
	    this.MAX_CAPACITY = 1024;
	
	    this.sbuf = new StringBuffer(256);
	
	    this.locationInfo = false;
	
	    this.title = "Log4J Log Messages";
	  }
	
	  public void setLocationInfo(boolean flag)
	  {
	    this.locationInfo = flag;
	  }
	
	  public boolean getLocationInfo()
	  {
	    return this.locationInfo;
	  }
	
	  public void setTitle(String title)
	  {
	    this.title = title;
	  }
	
	  public String getTitle()
	  {
	    return this.title;
	  }
	
	  public String getContentType() {
		return "text/html;charset=GBK";

	}
	
	  public void activateOptions()
	  {
	  }
	 private SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
	  public String format(LoggingEvent event)
	  {
	    if (this.sbuf.capacity() > 1024)
	      this.sbuf = new StringBuffer(256);
	    else {
	      this.sbuf.setLength(0);
	    }
	
	    this.sbuf.append(Layout.LINE_SEP + "<tr>" + Layout.LINE_SEP);
	
	    this.sbuf.append("<td>");
	    this.sbuf.append( format.format(new Date(event.timeStamp)));
	    this.sbuf.append("</td>" + Layout.LINE_SEP);
	
	    String escapedThread = Transform.escapeTags(event.getThreadName());
	    this.sbuf.append("<td title=\"" + escapedThread + " thread\">");
	    this.sbuf.append(escapedThread);
	    this.sbuf.append("</td>" + Layout.LINE_SEP);
	
	    this.sbuf.append("<td title=\"Level\">");
	    if (event.getLevel().equals(Level.INFO)) {
	      this.sbuf.append("<font color=\"#339933\">");
	      this.sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
	      this.sbuf.append("</font>");
	    }
	    else if (event.getLevel().isGreaterOrEqual(Level.WARN)) {
	      this.sbuf.append("<font color=\"#dc143c\"><strong>");
	      this.sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
	      this.sbuf.append("</strong></font>");
	    } else {
	      this.sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
	    }
	    this.sbuf.append("</td>" + Layout.LINE_SEP);
	
 
 
	    StringBuffer buff= new StringBuffer("");
	    buff.append(event.getLocationInformation().getClassName() );
	    buff.append(".");
	    buff.append(event.getLocationInformation().getMethodName() );
	    buff.append("(");
	    buff.append(event.getLocationInformation().getFileName() );
	    buff.append(":");
	    buff.append(event.getLocationInformation().getLineNumber());
	    buff.append(")");
	 
	  //  System.out.println(buff);
	    
	    
	    String lineLoger = Transform.escapeTags(buff.toString());
	    this.sbuf.append("<td title=\"" + lineLoger + " category\">");
	    this.sbuf.append(lineLoger);
	    this.sbuf.append("</td>" + Layout.LINE_SEP);
	
	    if (this.locationInfo) {
	      LocationInfo locInfo = event.getLocationInformation();
	      this.sbuf.append("<td>");
	      this.sbuf.append(Transform.escapeTags(locInfo.getFileName()));
	      this.sbuf.append(':');
	      this.sbuf.append(locInfo.getLineNumber());
	      this.sbuf.append("</td>" + Layout.LINE_SEP);
	    }
	
	    this.sbuf.append("<td title=\"Message\">");
	    this.sbuf.append(Transform.escapeTags(event.getRenderedMessage()));
	    this.sbuf.append("</td>" + Layout.LINE_SEP);
	    this.sbuf.append("</tr>" + Layout.LINE_SEP);
	
	    if (event.getNDC() != null) {
	      this.sbuf.append("<tr><td bgcolor=\"#EEEEEE\" style=\"font-size : xx-small;\" colspan=\"6\" title=\"Nested Diagnostic Context\">");
	      this.sbuf.append("NDC: " + Transform.escapeTags(event.getNDC()));
	      this.sbuf.append("</td></tr>" + Layout.LINE_SEP);
	    }
	
	    String[] s = event.getThrowableStrRep();
	    if (s != null) {
	      this.sbuf.append("<tr><td bgcolor=\"#87ceeb\" style=\"color:White; font-size : xx-small;\" colspan=\"6\">");
	      appendThrowableAsHTML(s, this.sbuf);
	      this.sbuf.append("</td></tr>" + Layout.LINE_SEP);
	    }
	
	    return this.sbuf.toString();
	  }
	
	  void appendThrowableAsHTML(String[] s, StringBuffer sbuf) {
	    if (s != null) {
	      int len = s.length;
	      if (len == 0)
	        return;
	      sbuf.append(Transform.escapeTags(s[0]));
	      sbuf.append(Layout.LINE_SEP);
	      for (int i = 1; i < len; ++i) {
	        sbuf.append(TRACE_PREFIX);
	        sbuf.append(Transform.escapeTags(s[i]));
	        sbuf.append(Layout.LINE_SEP);
	      }
	    }
	  }
	
	  public String getHeader()
	  {
	    StringBuffer sbuf = new StringBuffer();
	    sbuf.append("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">" + Layout.LINE_SEP);
	    sbuf.append("<html>" + Layout.LINE_SEP);
	    sbuf.append("<head>" + Layout.LINE_SEP);
	    sbuf.append("<title>" + this.title + "</title>" + Layout.LINE_SEP);
	    sbuf.append("<style type=\"text/css\">" + Layout.LINE_SEP);
	    sbuf.append("<!--" + Layout.LINE_SEP);
	    sbuf.append("body, table {font-family: arial,sans-serif; font-size: x-small;}" + Layout.LINE_SEP);
	    sbuf.append("th {background: #336699; color: #FFFFFF; text-align: left;}" + Layout.LINE_SEP);
	    sbuf.append("-->" + Layout.LINE_SEP);
	    sbuf.append("</style>" + Layout.LINE_SEP);
	    sbuf.append("</head>" + Layout.LINE_SEP);
	    sbuf.append("<body bgcolor=\"#FFFFFF\" topmargin=\"6\" leftmargin=\"6\">" + Layout.LINE_SEP);
	    sbuf.append("<hr size=\"1\" noshade>" + Layout.LINE_SEP);
	    sbuf.append("Log session start time " + new Date() + "<br>" + Layout.LINE_SEP);
	    sbuf.append("<br>" + Layout.LINE_SEP);
	    sbuf.append("<table cellspacing=\"0\" cellpadding=\"4\" border=\"1\" bordercolor=\"#224466\" width=\"100%\">" + Layout.LINE_SEP);
	    sbuf.append("<tr>" + Layout.LINE_SEP);
	    sbuf.append("<th>Time</th>" + Layout.LINE_SEP);
	    sbuf.append("<th>Thread</th>" + Layout.LINE_SEP);
	    sbuf.append("<th>Level</th>" + Layout.LINE_SEP);
	    sbuf.append("<th>Category</th>" + Layout.LINE_SEP);
	    if (this.locationInfo) {
	      sbuf.append("<th>File:Line</th>" + Layout.LINE_SEP);
	    }
	    sbuf.append("<th>Message</th>" + Layout.LINE_SEP);
	    sbuf.append("</tr>" + Layout.LINE_SEP);
	    return sbuf.toString();
	  }
	
	  public String getFooter()
	  {
	    StringBuffer sbuf = new StringBuffer();
	    sbuf.append("</table>" + Layout.LINE_SEP);
	    sbuf.append("<br>" + Layout.LINE_SEP);
	    sbuf.append("</body></html>");
	    return sbuf.toString();
	  }
	
	  public boolean ignoresThrowable()
	  {
	    return false;
	  }
	}

 

发送模式

package com.just.zb.email.log;

import org.apache.log4j.net.SMTPAppender;
import org.apache.log4j.spi.LoggingEvent;

public class EmailSMTPAppender extends SMTPAppender {
	public void append(LoggingEvent event) {

		if (!checkEntryConditions()) {
			return;
		}
		event.getThreadName();
		event.getNDC();
		event.getMDCCopy();
		if (this.getLocationInfo()) {
			event.getLocationInformation();
		}
		cb.add(event);
		if (evaluator.isTriggeringEvent(event)) {
			if (cb.length() > this.getBufferSize()-24) {
				sendBuffer();
			}
		}
	}

	public EmailSMTPAppender() {
		super();
		Runtime.getRuntime().addShutdownHook(new Thread() {
			@Override
			public void run() {
				if (cb.length() > 0) {
					sendBuffer();
				}

			}
		});
	}
}

 

LOG等级

package com.just.zb.email.log;

import org.apache.log4j.Level;
import org.apache.log4j.spi.LoggingEvent;
import org.apache.log4j.spi.TriggeringEventEvaluator;

public class EmailTriggeringEventEvaluator implements TriggeringEventEvaluator {

	public boolean isTriggeringEvent(LoggingEvent paramLoggingEvent ) {
		return paramLoggingEvent.getLevel().isGreaterOrEqual(Level.INFO);  
	}

}

配置文件

log4j.rootCategory=INFO,CONSOLE,FILE,EMAIL
log4j.category.com.just=INFO

 #log4j.rootCategory=DEBUG,CONSOLE,FILE
 #log4j.category.com.just=DEBUG

log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[%p]: %d{yyyy-MM-dd HH:mm:ss} %n     |_[MESSAGE]: %m %n     |_[SOURCE] : %l%n%n


log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender
log4j.appender.FILE.file=log/utils.log
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=[%p]: %d{yyyy-MM-dd HH:mm:ss} %n     |_[MESSAGE]: %m %n     |_[SOURCE] : %l%n%n


log4j.appender.EMAIL=com.just.zb.email.log.EmailSMTPAppender
log4j.appender.EMAIL.Threshold=INFO
log4j.appender.EMAIL.BufferSize=1024
log4j.appender.EMAIL.To=zhongbin@just-tech.com.cn
log4j.appender.EMAIL.From=www.just-tech.com.cn
log4j.appender.EMAIL.Subject=SYSTEM ERROR[ TEST ]
log4j.appender.MAIL.SMTPDebug=true
log4j.appender.EMAIL.SMTPHost=mail.just-tech.com.cn
#log4j.appender.EMAIL.SMTPUsername=youemail
#log4j.appender.EMAIL.SMTPPassword=youpw
log4j.appender.EMAIL.EvaluatorClass=com.just.zb.email.log.EmailTriggeringEventEvaluator
log4j.appender.EMAIL.layout=com.just.zb.email.log.EmailHTMLLayout