Question

我在SpringBoot应用程序中使用Log4J 2.

执行日志记录的类是：

package guru.springframework.blog.log4jproperties;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
public class PropertiesConfigurationDemo {
    private static Logger logger =LogManager.getLogger("PropertiesConfigurationDemo.class");
    public void performSomeTask(){
      logger.debug("This is a debug message");
      logger.info("This is an info message");
      logger.warn("This is a warn message");
      logger.error("This is an error message");
      logger.fatal("This is a fatal message");
   }
}

我的log4j2.xml位于src-＆gt; main-＆gt; resources。

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
  <Properties>
    <Property name="log-path">logs</Property>
</Properties>
<Appenders>
    <File name="A1" fileName="${log-path}/A1.log" >
        <PatternLayout pattern="%d{MM.dd.yyyy HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </File>
    <Console name="STDOUT" target="SYSTEM_OUT">
        <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
    </Console>
</Appenders>
<Loggers>
    <Logger name="guru.springframework.blog.log4jproperties" level="debug" additivity="false">
        <AppenderRef ref="A1" level="debug"/>
    </Logger>
    <Root level="info" additivity="false">
        <AppenderRef ref="STDOUT"/>
    </Root>
 </Loggers>
</Configuration>

当我在PropertiesConfigurationDemo上调用performSomeTask（）方法时，日志消息将作为以下内容发送到Console：

7:39:12.619 [main] DEBUG PropertiesConfigurationDemo.class - This is a debug message
07:39:12.643 [main] INFO  PropertiesConfigurationDemo.class - This is an info message
07:39:12.647 [main] WARN  PropertiesConfigurationDemo.class - This is a warn message
07:39:12.653 [main] ERROR PropertiesConfigurationDemo.class - This is an error message
07:39:12.655 [main] ERROR PropertiesConfigurationDemo.class - This is a fatal message

为什么日志消息没有发送到文件？即使如果我将根记录器的AppenderRef设置为A1，仍然会将消息发送到控制台。'

<Root level="info" additivity="false">
<AppenderRef ref="A1"/>
</Root>

看来我的log4j2.xml存在一些问题或根本没有被提取。任何帮助都将得到诚挚的承认。

顺便说一句，我在MAVEN POM中有以下log4j依赖项。

<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-api</artifactId>
  <version>2.5</version>
</dependency>
<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-core</artifactId>
  <version>2.5</version>
</dependency>

由于 Simanta

Answer 1

我完成了。问题在于POM依赖性。我排除了默认的logback classic并添加了log4j2。这就是我修改过的。

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
        </exclusions>
</dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>

我的log4j2.xml位于src-＆gt; main-＆gt;资源现在。

<?xml version="1.0" encoding="UTF-8"?>
  <Configuration>
    <Properties>
      <Property name="log-path">logs</Property>
</Properties>
<Appenders>
    <File name="File" fileName="${log-path}/log4j2.log" >
        <PatternLayout>
            <pattern>
              [%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n
            </pattern>
        </PatternLayout>
    </File>
    <Console name="STDOUT" target="SYSTEM_OUT">
        <PatternLayout>
            <pattern>
            [%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n
            </pattern>>
        </PatternLayout>
    </Console>

</Appenders>
<Loggers>
    <Logger name="guru.springframework.blog.log4jproperties"  level="debug"  additivity="false">
        <AppenderRef ref="File"  level="info"/>
        <AppenderRef ref="STDOUT" level="debug"/>
    </Logger>
    <Root level="all">
        <AppenderRef ref="STDOUT"/>
    </Root>
</Loggers>
</Configuration>

在我的应用程序类中，我将Logger检索为。

private static Logger logger = LogManager.getLogger("guru.springframework.blog.log4jproperties");

现在，日志记录将被定向到控制台和文件。

Log4J 2 XML配置未写入文件

1 个答案: