我已经编写了一个简短的测试代码来试验Java日志框架Logback。
但是，Logback似乎没有从xml文件中获取配置。
下面是应用程序代码：
package com.myname.logbackexample;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class App
{
private static final Logger logger = LoggerFactory.getLogger(App.class);
private static final Logger anotherLogger = LoggerFactory.getLogger("anotherLogger");
private static final Logger fileLogger = LoggerFactory.getLogger("filelog");
public static void main(String[] args)
{
System.out.println("Hello World from System.out");
logger.debug("Hello world from Logback");
logger.debug("getNumber() : {}", getNumber());
logger.warn("This is a warning");
logger.error("This is an error");
logger.info("This is info");
logger.trace("This is trace");
anotherLogger.debug("Debug from anotherLogger");
fileLogger.debug("Debug log to file from fileLogger -> filelog");
}
static int getNumber() {
return 10;
}
}下面是我的配置文件logback.xml：
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n
</Pattern>
</layout>
</appender>
<appender name="simpleConsole" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%-5level %logger{36}: %msg%n
</Pattern>
</layout>
</appender>
<logger name="com.myname" level="debug" additivity="false">
<appender-ref ref="simpleConsole"/>
</logger>
<logger name="com.myname.logbackexample.App" level="warn" additivity="false">
<appender-ref ref="console"/>
</logger>
<logger name="anotherLogger" level="error" additivity="false">
<appender-ref ref="simpleConsole"/>
</logger>
<root level="error">
<appender-ref ref="console"/>
</root>
</configuration>这是我打包并运行这段代码时产生的输出：
$ java -jar target/logback-example-1.0-SNAPSHOT-jar-with-dependencies.jar
Hello World from System.out
11:13:32.504 [main] DEBUG com.myname.logbackexample.App -- Hello world from Logback
11:13:32.507 [main] DEBUG com.myname.logbackexample.App -- getNumber() : 10
11:13:32.508 [main] WARN com.myname.logbackexample.App -- This is a warning
11:13:32.508 [main] ERROR com.myname.logbackexample.App -- This is an error
11:13:32.508 [main] INFO com.myname.logbackexample.App -- This is info
11:13:32.508 [main] DEBUG anotherLogger -- Debug from anotherLogger
11:13:32.508 [main] DEBUG filelog -- Debug log to file from fileLogger -> filelog最后，我的pom.xml：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myname.logbackexmaple</groupId>
<artifactId>logback-example</artifactId>
<version>1.0-SNAPSHOT</version>
<name>logback-example</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<maven.compiler.release>17</maven.compiler.release>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.4.6</version>
</dependency>
</dependencies>
<build>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<executions>
<execution>
<id>default-jar</id>
<phase>none</phase>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.1.1</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
<!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
<plugin>
<artifactId>maven-site-plugin</artifactId>
<version>3.7.1</version>
</plugin>
<plugin>
<artifactId>maven-project-info-reports-plugin</artifactId>
<version>3.0.0</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.myname.logbackexample.App</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>com.myname.logbackexample.App</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>我希望得到不同的日志级别和输出格式，这取决于哪个日志记录器正在记录。
这似乎并不像我所期望的那样发生。
例如，anotherLogger应该设置为error的日志级别，但它会在调试级别生成输出。
如何测试配置文件logback.xml在运行时是否被代码读取和处理？
1条答案
按热度按时间cgyqldqp1#
以下是如何在运行时打印当前配置：
在代码中添加以下行。
例如，如果未找到配置文件，它将打印如下内容：