如何在log4j中更改htmllayout

我想更改Java中log4j的htmllayout（5列 - 時間，線程，級別，類別，消息）。如何在log4j中更改htmllayout

我log4j.properties是：

log4j.rootLogger=DEBUG, Console, File 

log4j.appender.Console=org.apache.log4j.ConsoleAppender 
log4j.appender.File=org.apache.log4j.FileAppender 
log4j.appender.File.File =${logfilename} 

log4j.appender.Console.layout=org.apache.log4j.PatternLayout 
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p %c %x - %m%n 

log4j.appender.File.layout=org.apache.log4j.PatternLayout 
log4j.appender.File.layout=org.apache.log4j.HTMLLayout 
log4j.appender.FILE.layout.Title=HTML Layout Example 
log4j.appender.File.layout.ConversionPattern=%d [%t] %-5p %c %x - %m%n 
#[%d{MMM dd HH:mm:ss}] %-5p (%F:%L) - %m%n 

log4j.appender.File.Threshold=INFO 
log4j.appender.Console.Threshold=DEBUG

我想改變「TIME」 coloumn的名稱，顯示有當前時間。任何人都可以幫助我如何做到這一點？

來源

2012-09-25 Emrah Karakoc

配置在下面的配置

Log4j.rootLogger=DEBUG 

log4j.appender.FileAppender =org.apache.log4j.FileAppender 
log4j.appender.FileAppender.File= C:\test.html 
log4j.appender.FileAppender.layout=org.apache.log4j.HTMLLayout 

log4j.logger.<your packge>=FileAppender

來源

2012-09-25 12:59:31 CycDemo

我這樣做就像你說的「log4j.logger.com.financial.scotiatester = File.layout」但沒有改變？ –

@Emrah Karakoc 更新答案，只需再次檢查 – CycDemo

log4j：WARN記錄器（com.financial.scotiatester.ScotiaJunoLevel1Tester）找不到appender。 log4j：WARN請正確初始化log4j系統。 log4j：WARN請參閱http://logging.apache.org/log4j/1.2/faq.html#noconfig瞭解更多信息。我在屬性文件中刪除了我的代碼並寫下了你的代碼。但我現在得到錯誤？ –

佈局我發現了一個解決方案，它的工作原理。

package com.mypackage; 

import java.text.SimpleDateFormat; 
import java.util.Date; 
import java.util.regex.Matcher; 
import java.util.regex.Pattern; 

import org.apache.log4j.spi.LoggingEvent; 

/** 
* This HTML Log Formatter is a simple replacement for the standard Log4J HTMLLayout formatter and 
* replaces the default timestamp (milliseconds, relative to the start of the log) with a more readable 
* timestamp (an example of the default format is 2008-11-21-18:35:21.472-0800). 
* */ 

public class MyLayout 
     extends org.apache.log4j.HTMLLayout 

{ 
// RegEx pattern looks for <tr> <td> nnn...nnn </td> (all whitespace ignored) 

private static final String rxTimestamp = "\\s*<\\s*tr\\s*>\\s*<\\s*td\\s*>\\s*(\\d*)\\s*<\\s*/td\\s*>"; 

//* The timestamp format. The format can be overriden by including the following 
    * property in the Log4J configuration file: 
    * 
    * log4j.appender.<category>.layout.TimestampFormat 
    * 
    * using the same format string as would be specified with SimpleDateFormat. 
    * 
    */ 

private String timestampFormat = "yyyy-MM-dd-HH:mm:ss.SZ"; // Default format. Example: 2008-11-21-18:35:21.472-0800 

private SimpleDateFormat sdf = new SimpleDateFormat(timestampFormat); 

public MyLayout() 
{ 
super(); 
} 

/** Override HTMLLayout's format() method */ 

public String format(LoggingEvent event) 
{ 
String record = super.format(event); // Get the log record in the default HTMLLayout format. 

Pattern pattern = Pattern.compile(rxTimestamp); // RegEx to find the default timestamp 
Matcher matcher = pattern.matcher(record); 

if (!matcher.find()) // If default timestamp cannot be found, 
{ 
return record; // Just return the unmodified log record. 
} 

StringBuffer buffer = new StringBuffer(record); 

buffer.replace(matcher.start(1), // Replace the default timestamp with one formatted as desired. 
     matcher.end(1), 
     sdf.format(new Date(event.timeStamp))); 

return buffer.toString(); // Return the log record with the desired timestamp format. 
} 

/** Setter for timestamp format. Called if log4j.appender.<category>.layout.TimestampFormat property is specfied */ 

public void setTimestampFormat(String format) 
{ 
    this.timestampFormat = format; 
this.sdf = new SimpleDateFormat(format); // Use the format specified by the TimestampFormat property 
} 

/** Getter for timestamp format being used. */ 

public String getTimestampFormat() 
{ 
return this.timestampFormat; 
} 

}

來源

2012-09-25 13:52:52

創建擴展org.apache.log4j.HTMLLayout類的自定義佈局，並覆蓋format方法。

你可以看看如何格式化code of HTMLLayout和建立自己的版本，以滿足您的需求。

來源

2013-04-15 10:36:34 Seitaridis

這個解決方案中似乎缺少的部分是如何配置新擴展的HTMLLayout類，以便在通過電子郵件發送異常時獲取並使用它。

我們正在工作，我們只需要將這一個班輪添加到我們的log4j.properties文件中。

log4j.appender.email.layout=com.<yourPackage>.utils.CustomizedHTMLLayout

來源

2013-07-25 17:09:15

如何在log4j中更改htmllayout

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