PropertyConfigurator for Log4j不再存在了吗？

Question

我只在控制台上看到这个：

13:08:18.379主要错误log4.prueba -这是错误 13:08:18.381主要致命性log4.prueba -这是致命的

我没有得到一个文件或所有其他级别。我做错什么了？我的目录如下所示：

projectFolder/src/log4 4/prueba.java projectFolder/src/log4j.properties

守则：

package log4;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class prueba {

     private static Logger logger = LogManager.getLogger(prueba.class);
     public static void main( String[] args )
     {
          logger.debug("This is Debug");
          logger.info("This is Info");
          logger.warn("This is Warn");
          logger.error("This is Error");
          logger.fatal("This is Fatal");
     }

 }

属性文件如下所示：

# Root logger option
log4j.rootLogger=DEBUG, file, stdout

# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=C:\\logging.log
log4j.appender.file.MaxFileSize=10MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p 
%c{1}:%L - %m%n

# 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} %-5p 
%c{1}:%L - %m%n

Answer 1

Log4j 2还支持属性文件中的配置，但请注意：

• 该文件需要被称为log4j2.properties
• 配置语法不同于Log4j 1.2语法(问题中的配置使用旧的Log4j 1.2语法，Log4j 2将不理解这一点)

Log4j 2用户手册主要有XML示例，因此许多人发现使用语法更容易。(同样，配置文件应该命名为log4j2.xml，Log4j 2将忽略log4j.xml。)

Answer 2

定义log4j属性文件

@ prueba.java

import org.apache.log4j.Logger;

public class prueba {

    private static Logger LOGGER = Logger.getLogger(prueba.class);

    public static void main(String[] args) {
        LOGGER.debug("This is Debug");
        ...
    }
}

@ pom.xml

    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>RELEASE</version>
        <scope>compile</scope>
    </dependency>

在src/resources/log4j.properties

# Root logger option
log4j.rootLogger=DEBUG, file, stdout
# 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} %-5p %c{1}:%L - %m%n
# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=log/log4j-application.log
log4j.appender.file.MaxFileSize=10MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

输出到stdout和log/log4j-application.log文件

2018-05-11 14:29:43 DEBUG prueba:8 - This is Debug
2018-05-11 14:29:43 INFO  prueba:9 - This is Info
2018-05-11 14:29:43 WARN  prueba:10 - This is Warn
2018-05-11 14:29:43 ERROR prueba:11 - This is Error
2018-05-11 14:29:43 FATAL prueba:12 - This is Fatal