如何正确设置Spring Boot和log4j2

Question

我如何通过log4j2以及我拥有的其他依赖关系(Hibernate, Netty, Mina等)正确地制作Spring日志?

我尝试了许多不同的东西和依赖组合。但我要么可以让Spring日志，而不是其他的，或者除了Spring什么都可以。

所有的依赖记录正确(但Spring)，我得到以下错误:

java.lang.NoSuchMethodError: org.apache.logging.log4j.core.config.ConfigurationFactory.getConfiguration(Lorg/apache/logging/log4j/core/config/ConfigurationSource;)Lorg/apache/logging/log4j/core/config/Configuration;
        at org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.loadConfiguration(Log4J2LoggingSystem.java:167)
        at org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.loadDefaults(Log4J2LoggingSystem.java:150)
        at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:75)
        at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:50)
        at org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.initialize(Log4J2LoggingSystem.java:140)
        at org.springframework.boot.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:277)
        at org.springframework.boot.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:255)
        at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:224)
        at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:200)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:166)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:121)
        at org.springframework.boot.context.event.EventPublishingRunListener.publishEvent(EventPublishingRunListener.java:111)
        at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:65)
        at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
        at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:329)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:306)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174)
        at com.myproject.MyProject.main(MyProject.java:XX)

这是我的build.gradle依赖

dependencies {
    // FIX engine
    compile 'org.quickfixj:quickfixj-all:1.6.2'
    compile 'org.apache.mina:mina-core:2.0.16'
    // Web API
    compile ('org.springframework.boot:spring-boot-starter-web:1.4.1.RELEASE') {
        // Remove default Spring loggers (where logback takes precedence)
        exclude module: 'spring-boot-starter-logging'
    }
    // Logging
    compile 'org.apache.logging.log4j:log4j-api:2.7'
    compile 'org.apache.logging.log4j:log4j-core:2.7'
    compile 'commons-logging:commons-logging:1.2' // for Spring logging
    compile 'org.apache.logging.log4j:log4j-web:2.7' // for Spring logging
    compile 'org.apache.logging.log4j:log4j-slf4j-impl:2.7' // for Hibernate logging
    // ORM and Database Driver
    compile 'org.hibernate:hibernate-core:5.2.4.Final'
    compile 'org.postgresql:postgresql:9.4.1209'
    // Key-value store
    compile 'biz.paluch.redis:lettuce:4.1.2.Final'
    // Testing
    // The Groovy language
    compile 'org.codehaus.groovy:groovy-all:2.4.6'
    // Spock testing framework
    testCompile 'org.spockframework:spock-core:1.0-groovy-2.4'
}

然后，去掉我的日志依赖项，并在下面添加依赖项:

 compile 'org.springframework.boot:spring-boot-starter-log4j2:1.4.1.RELEASE'

Spring logging可以工作，但是其他的deep logging不能。

这是main方法(没什么特别的)

    public static void main(String[] args) {
        // Fine tune a few logging settings so they don't log with TRACE or DEBUG levels.
        Configurator.setLevel("org.hibernate", Level.ERROR);
        Configurator.setLevel("org.jboss", Level.ERROR);
        Configurator.setLevel("org.apache.mina", Level.ERROR);
        Configurator.setLevel("io.netty", Level.ERROR);
        Configurator.setLevel("quickfix.mina", Level.WARN);
        Configurator.setLevel("com.lambdaworks", Level.WARN);
        // ...
        logger.info("FIX Controller started. Loading the API.");
        SpringApplication.run(MyProject.class, args);
    }

所以再一次，我怎么能让Spring通过log4j2与我拥有的其他依赖关系正确日志?

Answer 1

Spring Boot 1.4.1是使用并支持Log4J 2.6构建的，但您正在尝试使用2.7。不幸的是，这不起作用，因为在2.7中有一个破坏性的API更改。这就是你所看到的NoSuchMethodError的原因。

回到Log4J2 2.6.2应该可以解决这个问题。或者，您可以升级到使用Log4J 2.7的Spring Boot 1.5。