Java Logger - 配置更改未反射(reflect)在运行时

Question

我有 2 个用于日志记录的配置文件，config1.properties 和配置2.属性

当我加载 config1.properties 并记录某些内容时，格式是正确的，但紧接着，当我加载第二个配置文件时，更改没有反射(reflect)出来。这是我的代码:

System.setProperty("java.util.logging.config.file", "config1.properties");
logger = Logger.getLogger(this.getClass().getSimpleName());
logger.info("Message 1");
System.setProperty("java.util.logging.config.file", "config2.properties");
LogManager logManager = LogManager.getLogManager();
logManager.readConfiguration();
logger = Logger.getLogger("NewLogger");
logger.info("Message 2");

我已在 config2.properties 中设置配置以将消息记录在 2 行中，但该消息仍然显示在一行中。

有什么想法为什么新配置没有生效吗？我确信我的配置文件是正确的，因为我尝试在 config1 之前加载 config2，并且这在 2 行中显示了我记录的消息。

这是记录的结果:

[01-13-2014 16:48:56:186] LoggerUnitTest INFO: Message 1
[01-13-2014 16:48:56:195] LoggerUnitTest INFO: Message 2

它应该显示为:

[01-13-2014 16:48:56:186] LoggerUnitTest INFO: Message 1
[01-13-2014 16:48:56:195] LoggerUnitTest INFO: 

消息2

以下是我正在使用的配置文件:

config1.properties

handlers=java.util.logging.ConsoleHandler

.level= FINE

# Limit the message that are printed on the console to INFO and above.
java.util.logging.ConsoleHandler.level = INFO
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
java.util.logging.ConsoleHandler.formatter.format = [%1$tm-%1$td-%1$tY %1$tk:%1$tM:%1$tS:%1$tL] %4$s: %5$s%6$s%n

config2.properties

handlers=java.util.logging.ConsoleHandler

.level= FINE

# Limit the message that are printed on the console to INFO and above.
java.util.logging.ConsoleHandler.level = INFO
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
# Note that this line is different from the line in config1
java.util.logging.ConsoleHandler.formatter.format = [%1$tm-%1$td-%1$tY %1$tk:%1$tM:%1$tS:%1$tL] %n %4$s: %5$s%6$s%n

Answer 1

这对我有用:

测试.java

import java.util.logging.LogManager;
import java.util.logging.Logger;

public class Test {
  public static void main(String[] args) throws Exception {
    System.setProperty("java.util.logging.config.file", "config1.properties");
    Logger logger = Logger.getLogger(Test.class.getSimpleName());
    logger.info("Message 1");
    System.setProperty("java.util.logging.config.file", "config2.properties");
    LogManager logManager = LogManager.getLogManager();
    logManager.readConfiguration();
    logger = Logger.getLogger(Test.class.getSimpleName());
    logger.info("Message 2");
  }
}

config1.properties

handlers=java.util.logging.ConsoleHandler

.level= FINE

# Limit the message that are printed on the console to INFO and above.
java.util.logging.ConsoleHandler.level = INFO
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter

config2.properties

handlers=java.util.logging.ConsoleHandler

.level= FINE

# Limit the message that are printed on the console to INFO and above.
java.util.logging.ConsoleHandler.level = INFO
java.util.logging.ConsoleHandler.formatter = java.util.logging.XMLFormatter

javac 测试.java
java测试

Jan 13, 2014 8:51:20 PM Test main
INFO: Message 1
<?xml version="1.0" encoding="windows-1252" standalone="no"?>
<!DOCTYPE log SYSTEM "logger.dtd">
<log>
<record>
  <date>2014-01-13T20:51:20</date>
  <millis>1389664280170</millis>
  <sequence>1</sequence>
  <logger>Test</logger>
  <level>INFO</level>
  <class>Test</class>
  <method>main</method>
  <thread>10</thread>
  <message>Message 2</message>
</record>