如何设置log4j属性,以便每个线程输出到自己的日志文件? [英] How do I setup log4j properties so that each thread outputs to its own log file?
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问题描述
我在任何给定时间都有多个线程类实例。我有log4j设置用于记录需求。
I have multiple instances of a thread class running at any given time. I have log4j setup to be used for logging needs.
我需要一种方法来设置log4j,以便我的线程类的每个实例都将其日志输出到不同的日志文件中。
I need a way to setup log4j so that every instance of my thread class outputs its log in a different log file.
这是我所做的(伪代码)
Here is what I have done ( in pseudo code)
public class doSomething extends Thread {
private Logger d_logger;
public doSomething(int id){
d_logger = Logger.getLogger("doSomething"+id);
String logFileName = "doSomething"+id+".log";
Properties prop = new Properties;
prop.setProperty("doSomething"+id,"DEBUG, WORKLOG");
prop.setProperty("log4j.appender.WORKLOG","org.apache.log4j.FileAppender");
prop.setProperty("log4j.appender.WORKLOG.File", logFileName);
prop.setProperty("log4j.appender.WORKLOG.layout","org.apache.log4j.PatternLayout");
prop.setProperty("log4j.appender.WORKLOG.layout.ConversionPattern","%d %c{1} - %m%n");
prop.setProperty("log4j.appender.WORKLOG.Threshold","INFO");
PropertyConfigurator.configure(prop);
}
public void run(){
d_logger.info("Starting to doSomething number" + id);
}
}
虽然上面创建了一个文件我实例化的每个线程,它不会向这些文件输出任何内容。任何帮助深表感谢。
Though the above creates a file for every thread I instantiate, It does not output anything to those files. Any help is much appreciated.
推荐答案
它没有向文件输出任何内容,因为设置记录器的正确语法是:
It's not outputting anything to the files because the correct syntax for setting up a logger is:
prop.setProperty("log4j.logger.doSomething"+id,"DEBUG, WORKLOG");
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