log4j2 Spring boot lookup could not read properties from application.properties… here is a solution to the problem.
log4j2 Spring boot lookup could not read properties from application.properties
I want log4j2-spring.xml to read a property from the application.properties file. But it seems that log4j2-spring.xml can’t read it. I’ve read https://logging.apache.org/log4j/2.x/manual/lookups.html#SpringLookup implement this.
I’ve seen this answer on this site. Tried this too. But it didn’t help me.
My build.gradle looks like this:
plugins {
id 'org.springframework.boot' version '2.5.0-SNAPSHOT'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
maven { url 'https://repo.spring.io/milestone' }
maven { url 'https://repo.spring.io/snapshot' }
}
ext {
log4j2version = '2.14.1'
}
dependencies {
compileOnly 'org.projectlombok:lombok:1.18.18'
annotationProcessor 'org.projectlombok:lombok:1.18.18'
implementation 'org.springframework.boot:spring-boot-starter'
implementation 'org.springframework.boot:spring-boot-starter-log4j2'
implementation "org.apache.logging.log4j:log4j-spring-cloud-config-client:${log4j2version}"
implementation "org.apache.logging.log4j:log4j-api:${log4j2version}"
implementation "org.apache.logging.log4j:log4j-core:${log4j2version}"
}
configurations {
all {
exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
exclude group: "ch.qos.logback", module: "logback-classic"
exclude group: "org.springframework.cloud", module: "spring-cloud-bus"
}
}
The application.properties file is:
commission.base.path1=C:/Users/user1/Downloads/demo1
logging.config=classpath:log4j2-spring.xml
spring.cloud.config.enabled=false
log4j2-spring.xml looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<Appenders>
<Console name="console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss:SSS} [%thread] %-5level %logger{2}:%L - %msg%n"/>
</Console>
<RollingFile name="CATALINA-FILE" fileName="$${spring:commission.base.path1}/logs/catalina.log"
filePattern="$${spring:commission.base.path1}/logs/archived/catalina_%d{yyyy-MM-dd}.log.gz">
<PatternLayout>
<Pattern>%d{yyyy-MM-dd HH:mm:ss. SSS} [%thread] %-5level %logger{20}:%L - %msg%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1"/>
<SizeBasedTriggeringPolicy size="1 GB" />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<root level="debug">
<appender-ref ref="CATALINA-FILE"/>
<appender-ref ref="console"/>
</root>
</Loggers>
</configuration>
But every time I run the code, I get this exception :
2021-05-21 21:28:38,409 main ERROR Unable to create file ${spring:commission.base.path1}/logs/catalina.log java.io.IOException: The filename, directory name, or volume label syntax is incorrect
at java.io.WinNTFileSystem.canonicalize0(Native Method)
at java.io.WinNTFileSystem.canonicalize(WinNTFileSystem.java:428)
at java.io.File.getCanonicalPath(File.java:618)
at java.io.File.getCanonicalFile(File.java:643)
at org.apache.logging.log4j.core.util.FileUtils.makeParentDirs(FileUtils.java:135)
at org.apache.logging.log4j.core.appender.rolling.RollingFileManager$RollingFileManagerFactory.createManager(RollingFileManager.java:720)
at org.apache.logging.log4j.core.appender.rolling.RollingFileManager$RollingFileManagerFactory.createManager(RollingFileManager.java:704)
at org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:113)
at org.apache.logging.log4j.core.appender.OutputStreamManager.getManager(OutputStreamManager.java:100)
at org.apache.logging.log4j.core.appender.rolling.RollingFileManager.getFileManager(RollingFileManager.java:217)
at org.apache.logging.log4j.core.appender.RollingFileAppender$Builder.build(RollingFileAppender.java:146)
at org.apache.logging.log4j.core.appender.RollingFileAppender$Builder.build(RollingFileAppender.java:62)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1000)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:940)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:932)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:551)
at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:241)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:287)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:627)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:304)
at org.apache.logging.log4j.spring.boot.Log4j2CloudConfigLoggingSystem.loadConfiguration(Log4j2CloudConfigLoggingSystem.java:123)
at org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.loadConfiguration(Log4J2LoggingSystem.java:181)
at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:80)
at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60)
at org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.initialize(Log4J2LoggingSystem.java:163)
at org.apache.logging.log4j.spring.boot.Log4j2CloudConfigLoggingSystem.initialize(Log4j2CloudConfigLoggingSystem.java:80)
at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:312)
at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:281)
at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:239)
at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:216)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131)
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82)
at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:63)
at java.util.ArrayList.forEach(ArrayList.java:1259)
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117)
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111)
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62)
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:373)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:331)
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144)
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:212)
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:117)
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:74)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131)
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82)
at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:63)
at java.util.ArrayList.forEach(ArrayList.java:1259)
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117)
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111)
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62)
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:373)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:331)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325)
at com.example.demo1.Demo1Application.main(Demo1Application.java:12)
How to solve it? Thanks in advance.
Solution
I just added
implementation “org.apache.logging.log4j:log4j-spring-boot”
In build.gradle, it’s now running.
Implementation
implementation ‘org.springframework.boot:spring-boot-starter-log4j2’
ENOUGH TO USE LOG4J2 VERSION 2.14.1, BECAUSE THE SPRING BOOT VERSION IS 2.5.0-SNAPSHOT. You don’t need to explicitly add a dependency on org.apache.logging.log4j for this.
So my final build.gradle is:
plugins {
id 'org.springframework.boot' version '2.5.0-SNAPSHOT'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
maven { url 'https://repo.spring.io/milestone' }
maven { url 'https://repo.spring.io/snapshot' }
}
dependencies {
compileOnly 'org.projectlombok:lombok:1.18.18'
annotationProcessor 'org.projectlombok:lombok:1.18.18'
implementation 'org.springframework.boot:spring-boot-starter'
implementation 'org.springframework.boot:spring-boot-starter-log4j2'
implementation "org.apache.logging.log4j:log4j-spring-boot"
}
configurations {
all {
exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
}
}
And you don’t need to keep it in application.properties:
spring.cloud.config.enabled=false
Yes, Official Documentation of log4j should be added The log4j-spring-boot dependency is sufficient to implement a spring lookup.