spring-boot - 记录错误Spring Boot Gradle

Question

尝试在应用程序中登录用户时出现以下错误

    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58)
Caused by: java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.apache.logging.slf4j.Log4jLoggerFactory loaded from jar:file:/home/dev/code/my_proj/build/libs/proj-core-0.1.0.jar!/BOOT-INF/lib/log4j-slf4j-impl-2.6.2.jar!/). If you are using WebLogic you will need to add 'org.slf4j' to prefer-application-packages in WEB-INF/weblogic.xml Object of class [org.apache.logging.slf4j.Log4jLoggerFactory] must be an instance of class ch.qos.logback.classic.LoggerContext
        at org.springframework.util.Assert.isInstanceOf(Assert.java:346)
        at org.springframework.boot.logging.LoggingApplicationListener.onApplicationStartedEvent(LoggingApplicationListener.java:226)
        at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:205)
        at org.springframework.boot.context.event.EventPublishingRunListener.started(EventPublishingRunListener.java:62)
        at org.springframework.boot.SpringApplicationRunListeners.started(SpringApplicationRunListeners.java:48)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175)
        at com.abc.def.Application.main(Application.java:22)
        ... 8 more

这是我的logback.xml

<configuration>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">

        <encoder>
            <pattern>%date{YYYY-MM-dd HH:mm:ss} [%.7thread] %level %logger{10}:%line %mdc%n %msg%n</pattern>
        </encoder>


    </appender>

    <logger name="com.abc" level="debug"
            additivity="false">
        <appender-ref ref="STDOUT"/>
    </logger>
    <root level="ERROR">
        <appender-ref ref="STDOUT"/>
    </root>
</configuration>

这是我对build.gradle的依赖

dependencies {
    compile("org.springframework.boot:spring-boot-starter-data-mongodb")
    compile ('org.springframework.boot:spring-boot-starter-web'){
        exclude module: 'org.springframework.boot:spring-boot-starter-logging'
    }
    compile ('org.springframework.boot:spring-boot-starter-log4j2')
    compile("org.springframework.boot:spring-boot-starter-actuator")
    compile("org.springframework.boot:spring-boot-starter-mail")
    compile("org.springframework.boot:spring-boot-starter-amqp")
    testCompile("org.springframework.boot:spring-boot-starter-test")
    compile group: 'org.springframework', name: 'spring-context-support'

    compile 'org.codehaus.groovy:groovy'
}

我正在如下使用它们。

import org.apache.log4j.Logger;
@Service
public class MyService {
  Logger logger = Logger.getLogger(MyService.class.getName());

我的申请还没有开始
我尝试了谷歌搜索，但由于我是Gradle和日志记录的新手，这非常令人困惑。请帮忙。

Answer 1

您有两个实现了Logback的jar，它们正在竞争成为 Activity 的jar，正如在Caused by消息中表示的那样，这也提出了一种解决方案:remove log4j-slf4j-impl-2.6.2.jarCaused by: java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.apache.logging.slf4j.Log4jLoggerFactory loaded from jar:file:/home/dev/code/my_proj/build/libs/proj-core-0.1.0.jar!/BOOT-INF/lib/log4j-slf4j-impl-2.6.2.jar!/). If you are using WebLogic you will need to add 'org.slf4j' to prefer-application-packages in WEB-INF/weblogic.xml Object of class [org.apache.logging.slf4j.Log4jLoggerFactory] must be an instance of class ch.qos.logback.classic.LoggerContext