WebSphere如何記錄時序跟蹤以分離日誌？

我們在我們的WebSphere應用程序中做了大量的跟蹤日誌記錄，並希望在一個單獨的日誌文件中分隔一些時間信息。WebSphere如何記錄時序跟蹤以分離日誌？

通常我們導入：

import java.util.logging.Level; 
import java.util.logging.Logger;

然後聲明：

private static final Logger logger = Logger.getLogger(Myclass.class.getName());

，然後登錄：

logger.info("now logging...");

什麼是這樣做的最簡單的方法是什麼？

來源

2016-01-07 Quadmore

-1

您可以使用Apache日誌記錄服務在Websphere Application Server之外創建日誌。從here下載log4j jar。這是我們使用的一個穩定版本的jar。將此jar添加到您的應用程序構建路徑/類路徑/庫。添加log4j.properties文件在您的src文件夾（空包）。 log4j.properties將包含以下行：

log4j.rootLogger = DEBUG, fileout 
log4j.appender.fileout = com.logging.NewLogForEachRunFileAppender 
log4j.appender.fileout.layout.ConversionPattern = %d{dd-MM-yyyy} %d{ABSOLUTE} %5p %c:%L - %m%n 
log4j.appender.fileout.layout = org.apache.log4j.PatternLayout 
log4j.appender.fileout.File = E:/Logs/MyApplication/logs.log

可以更改日誌級別爲每環境，而不是DEBUG（生產中應使用INFO或ERROR）。然後添加一個類NewLogForEachRunFileAppender in com.logging package with following code。

package com.logging; 

import java.io.File; 
import java.io.IOException; 
import java.text.DateFormat; 
import java.text.SimpleDateFormat; 
import java.util.Calendar; 
import org.apache.log4j.FileAppender; 
import org.apache.log4j.Layout; 
import org.apache.log4j.spi.ErrorCode; 

/** 
* This is a customized log4j appender, which will create a new line for every 
* run of the application. 
*/ 
public class NewLogForEachRunFileAppender extends FileAppender { 

    public NewLogForEachRunFileAppender() { 
    } 

    public NewLogForEachRunFileAppender(Layout layout, String filename, 
      boolean append, boolean bufferedIO, int bufferSize) 
      throws IOException { 
     super(layout, filename, append, bufferedIO, bufferSize); 
    } 

    public NewLogForEachRunFileAppender(Layout layout, String filename, 
      boolean append) throws IOException { 
     super(layout, filename, append); 
    } 

    public NewLogForEachRunFileAppender(Layout layout, String filename) 
      throws IOException { 
     super(layout, filename); 
    } 

    public void activateOptions() { 
     if (fileName != null) { 
      try { 
       fileName = getNewLogFileName(); 
       setFile(fileName, fileAppend, bufferedIO, bufferSize); 
      } catch (Exception e) { 
       errorHandler.error("Error while activating log options", e, 
         ErrorCode.FILE_OPEN_FAILURE); 
      } 
     } 
    } 

    public String getNewLogFileName() { 
     if (fileName != null) { 
      final String DOT = "."; 
      final String HIPHEN = "-"; 
      final File logFile = new File(fileName); 
      final String fileName = logFile.getName(); 
      String newFileName = ""; 

      final int dotIndex = fileName.indexOf(DOT); 
      if (dotIndex != -1) { 
       // the file name has an extension. so, insert the time stamp 
       // between the file name and the extension 
       newFileName = fileName.substring(0, dotIndex) + HIPHEN 
         + getDate(System.currentTimeMillis(), "yyyyMMdd") + DOT 
         + fileName.substring(dotIndex + 1); 
      } else { 
       // the file name has no extension. So, just append the timestamp 
       // at the end. 
       newFileName = fileName + HIPHEN 
         + getDate(System.currentTimeMillis(), "yyyyMMdd"); 
      } 
      return logFile.getParent() + File.separator + newFileName; 
     } 
     return null; 
    } 

    public static String getDate(long milliSeconds, String dateFormat) { 
     // Create a DateFormatter object for displaying date in specified 
     // format. 
     DateFormat formatter = new SimpleDateFormat(dateFormat); 

     // Create a calendar object that will convert the date and time value in 
     // milliseconds to date. 
     Calendar calendar = Calendar.getInstance(); 
     calendar.setTimeInMillis(milliSeconds); 
     return formatter.format(calendar.getTime()); 
    } 
}

然後你的類（如MyClass的），要在其中做記錄應該包含這樣的代碼：

package com.hpcl.cel; 

import org.apache.log4j.Logger; 

public class MyClass { 
    private static final Logger logger = Logger.getLogger(MyClass.class); 

    public void showLogging() { 
     logger.info("Operation started"); 

     logger.info("Operation finished"); 
    } 
}

現在建立並運行應用程序。一旦你將調用的MyClass showLogging（）方法，它會創建一個日誌文件名稱爲

日誌-20160107.txt

在路徑

E：/日誌/所有MyApplication

抽樣日誌將是：

07-01-2016 08:58:53,189 DEBUG Operation Started 
07-01-2016 08:58:53,190 DEBUG Operation Finished

來源

2016-01-08 04:19:39

WebSphere如何記錄時序跟蹤以分離日誌？

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