log4j实现每一个线程保存一个日志文件
Posted mfmdaoyou
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了log4j实现每一个线程保存一个日志文件相关的知识,希望对你有一定的参考价值。
log4j.properties:
### direct log messages to stdout ### log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} [%-5p] [%c.%M()]:%c{1}.java %L - %m%n ### direct log messages to myfile ### log4j.appender.myfile=org.apache.log4j.DailyRollingFileAppender log4j.appender.myfile.file = F:/eespace/log-test/logs/mylog.log log4j.appender.myfile.datePattern='.'yyyy-MM-dd log4j.appender.myfile.layout=org.apache.log4j.PatternLayout log4j.appender.myfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} [%-5p] [%c.%M()]:%c{1}.java %L - %m%n ### direct log myThreadfile to stdout ### log4j.appender.myThreadfile=com.demo.hello.provider.log_test.ThreadDailyRollingAppenderDecorator log4j.appender.myThreadfile.maxFileSize=60 log4j.appender.myThreadfile.maxThreadSize=5 log4j.appender.myThreadfile.filePath=F:/eespace/log-test/logs log4j.appender.myThreadfile.threadLogFileName=thread_log.log log4j.appender.myThreadfile.datePattern='.'yyyy-MM-dd log4j.appender.myThreadfile.layout=org.apache.log4j.PatternLayout log4j.appender.myThreadfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} [%-5p] [%c.%M()]:%c{1}.java %L - %m%n ### set log levels - for more verbose logging change 'info' to 'debug' ### log4j.rootLogger=info, stdout,myfile #myThreadfile log4j.logger.com.demo.hello.provider.log_test=info, stdout,myThreadfile
ThreadDailyRollingAppenderDecorator:
/** * @author wumingkun * @version 1.0.0 * @Description */ package com.demo.hello.provider.log_test; import java.io.File; import java.io.IOException; import org.apache.log4j.DailyRollingFileAppender; import org.apache.log4j.Layout; /** * @author wumingkun * */ public class ThreadDailyRollingAppenderDecorator extends DailyRollingFileAppender implements Cloneable { private int maxFileSize; private int maxThreadSize; private String filePath; private String threadLogFileName; DailyRollingFileAppender fileAppender; public ThreadDailyRollingAppenderDecorator() { super(); } public ThreadDailyRollingAppenderDecorator(Layout layout, String filename, String datePattern) throws IOException { super(layout, filename, datePattern); } public ThreadDailyRollingAppenderDecorator( ThreadDailyRollingAppenderDecorator fileAppender,String threadName) throws IOException { this(fileAppender.getLayout(),fileAppender.getFileName(threadName),fileAppender.getDatePattern()); this.fileAppender = fileAppender; } public DailyRollingFileAppender getFileAppender() { return fileAppender; } public void setFileAppender(DailyRollingFileAppender fileAppender) { this.fileAppender = fileAppender; } public int getMaxFileSize() { return maxFileSize; } public void setMaxFileSize(int maxFileSize) { this.maxFileSize = maxFileSize; } public Object copy() { try { return this.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } return null; } public int getMaxThreadSize() { return maxThreadSize; } public void setMaxThreadSize(int maxThreadSize) { this.maxThreadSize = maxThreadSize; } public void setFilePath(String filePath) { this.filePath = filePath; } public String getThreadLogFileName() { return threadLogFileName; } public void setThreadLogFileName(String threadLogFileName) { this.threadLogFileName = threadLogFileName; } public void init(String threadName) { this.name = threadName; this.setFile(getFileName(threadName)); try { this.setFile(this.fileName, true, false, this.bufferSize); } catch (IOException e) { e.printStackTrace(); } } /** * @return */ public String getFileName(String threadName) { return this.filePath + File.separator + threadName + File.separator + this.threadLogFileName; } }
ThreadLoggerFactory:
/** * @author wumingkun * @version 1.0.0 * @Description */ package com.demo.hello.provider.log_test; import java.io.IOException; import java.util.Enumeration; import org.apache.log4j.Appender; import org.apache.log4j.Logger; /** * @author wumingkun * */ public class ThreadLoggerFactory { static final String prefix="com.demo.hello.provider.log_test"; static Logger parentLogger ; static { parentLogger=Logger.getLogger(prefix); } public static Logger getLogger(){ Logger logger =Logger.getLogger(prefix+Thread.currentThread().getName()); addAppender(logger,Thread.currentThread().getName()); return logger; } /** * @param name */ private static void addAppender(Logger logger,String threadName) { Enumeration<Appender> appends=parentLogger.getAllAppenders(); if(!logger.getAllAppenders().hasMoreElements()){ while (appends.hasMoreElements()) { Appender appender = (Appender) appends.nextElement(); if(appender instanceof ThreadDailyRollingAppenderDecorator){ ThreadDailyRollingAppenderDecorator myappender=(ThreadDailyRollingAppenderDecorator)appender; try { logger.addAppender(new ThreadDailyRollingAppenderDecorator(myappender,threadName)); } catch (IOException e) { e.printStackTrace(); } continue; } logger.addAppender(appender); } } } }
ThreadLogTest:
/** * * @author wumingkun * @version 1.0.0 * @Description */ package com.demo.hello.provider.log_test; import java.util.Enumeration; import org.apache.log4j.Appender; import org.apache.log4j.Logger; /** * @author wumingkun * */ public class ThreadLogTest { static Logger logger=Logger.getLogger(ThreadLogTest.class); /** * @param args */ public static void main(String[] args) { MyThread myThread=new MyThread(); for(int i=1;i<11;i++){ new Thread(myThread, "mythread"+i).start(); } } } class MyThread implements Runnable{ /* (non-Javadoc) * @see java.lang.Runnable#run() */ public void run() { Logger logger=ThreadLoggerFactory.getLogger(); logger.debug(Thread.currentThread().getName()+" -----debug"); logger.info(Thread.currentThread().getName()+" -----info"); } }
结果:
以上是关于log4j实现每一个线程保存一个日志文件的主要内容,如果未能解决你的问题,请参考以下文章