log4j2.xml
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN" monitorInterval="30">
<Properties>
<Property name="LOG_PATTERN">%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} %p %m%n</Property>
<Property name="APP_LOG_ROOT">/home/sangamnath/Desktop</Property>
</Properties>
<Appenders>
<Console name="Console" target="SYSTEM_OUT" follow="true">
<PatternLayout pattern="${LOG_PATTERN}" />
</Console>
<RollingFile name="appLog"
fileName="${APP_LOG_ROOT}/SpringBoot2App/application.log"
filePattern="${APP_LOG_ROOT}/SpringBoot2App/application-%d{yyyy-MM-dd}-%i.log">
<PatternLayout pattern="${LOG_PATTERN}" />
<Policies>
<SizeBasedTriggeringPolicy size="19500KB" />
</Policies>
<DefaultRolloverStrategy max="1" />
</RollingFile>
</Appenders>
<Loggers>
<Logger name="com.howtodoinjava.app" additivity="false">
<AppenderRef ref="appLog" />
<AppenderRef ref="Console" />
</Logger>
<Root level="debug">
<AppenderRef ref="Console" />
</Root>
</Loggers>
</Configuration>
public class BatchApplication {
public static void main(String[] args) {
ApplicationContext ctx = SpringApplication.run(BatchApplication.class, args);
//logger.info("Application started");
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");
}
}
}
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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.shi</groupId>
<artifactId>rkjobs</artifactId>
<version>0.0.1</version>
<name>batch</name>
<description>drkjobs</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-batch</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.batch</groupId>
<artifactId>spring-batch-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<profiles>
<profile>
<id>dev</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<build.profile.id>dev</build.profile.id>
<profileActive>dev</profileActive>
</properties>
</profile>
<profile>
<id>test</id>
<properties>
<build.profile.id>test</build.profile.id>
<profileActive>test</profileActive>
</properties>
</profile>
<profile>
<id>uat</id>
<properties>
<build.profile.id>uat</build.profile.id>
<profileActive>uat</profileActive>
</properties>
</profile>
<profile>
<id>local</id>
<properties>
<build.profile.id>local</build.profile.id>
<profileActive>local</profileActive>
</properties>
</profile>
</profiles>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
XML 配置中的 spring log4j 无法创建日志信息文件。
日志消息可以在控制台中打印。但在文件中无法在所需文件夹中创建打印日志文件
日志消息可以在控制台中打印。但在文件中无法在所需文件夹中创建打印日志文件
最佳答案
Your logback.xml file should be in this format :
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="DEV_HOME" value="logs/demo.log" />
<appender name="FILE-AUDIT"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${DEV_HOME}/debug.log</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>
%d{yyyy-MM-dd HH:mm:ss}- %t - %msg%n
</Pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily -->
<fileNamePattern>${DEV_HOME}/archived/debug.%d{yyyy-MM-dd}.%i.log
</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>100KB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} -
%msg%n</pattern>
</encoder>
</appender>
<logger name="com.demo" level="debug" additivity="false">
<appender-ref ref="FILE-AUDIT" />
</logger>
<root level="info">
<appender-ref ref="STDOUT" />
</root>
</configuration>
And the properties should be mentioned in application.properties file if its an spring boot application :
logging.level.org.springframework.web: INFO
logging.level.org.hibernate:TRACE
endpoints.shutdown.enabled=true
And Logger can be defined in every class where the logs needs to be included in this way :
private static final Logger logger = LoggerFactory.getLogger(demo.class);
关于java - XML 配置中的 spring log4j 无法创建日志信息文件，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60700997/