Spark 2.1.1 Log4jLoggerFactory无法强制转换为LoggerContext

我正在尝试在火花流中使用logback for logger . 当我试图通过spark-submit提交工作时，我会得到如下例外情况 .

线程“main”中的异常java.lang.ClassCastException：org.slf4j.impl.Log4jLoggerFactory无法强制转换为消费者的consumer.spark.LogBackConfigLoader . （LogBackConfigLoader.java:18）中的ch.qos.logback.classic.LoggerContext . spark.Sample.main（Sample.java:18）位于sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）的sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl . java：43）at java.lang.reflect.Method.invoke（Method.java:498）at org.apache.spark.deploy.SparkSubmit $ .org $ apache $ spark $ deploy $ SparkSubmit $$ runMain（SparkSubmit.scala： 743）在org.apache.spark.deploy.SparkSubmit $$ anon $ 1.run（SparkSubmit.scala：169）at org.apache.spark.deploy.SparkSubmit $$ anon $ 1.run（SparkSubmit.scala：167）at java位于org.apache.hadoop.security.UserGroupInformation.doAs（UserGroupInformation.java）的javax.security.auth.Subject.doAs（Subject.java:422）上的.security.AccessController.doPrivileged（Native Method） ：1656）org.apache.spache.deploy.SparkSubmit $ .doRunMain $ 1（SparkSubmit.scala：167）atg.apache.spark.deploy.SparkSubmit $ .submit（SparkSubmit.scala：212）at org.apache.spark .deploy.SparkSubmit $ .main（SparkSubmit.scala：126）at org.apache.spark.deploy.SparkSubmit.main（SparkSubmit.scala）

我的pom.xml是：

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <slf4j.version>1.6.1</slf4j.version>
    <logback.version>1.2.3</logback.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>${slf4j.version}</version>
    </dependency>
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>${logback.version}</version>
    </dependency>
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-core</artifactId>
        <version>${logback.version}</version>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
    </dependency>
</dependencies>

我的logback代码是：

LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
JoranConfigurator configurator = new JoranConfigurator();
configurator.setContext(lc);
configurator.doConfigure(externalConfigFileLocation);

我的spark-submit命令是：

〜/ spark-2.1.1-bin-hadoop2.6 / bin / spark-submit --master yarn --deploy-mode client --driver-memory 4g --executor-memory 2g --executor-cores 4 - class consumer.spark.Sample~ / SparkStreamingJob / log_testing.jar~ / SparkStreamingJob / spark-jobs / config / conf / logback.xml