Java 卡夫卡:如何启用客户端日志记录?
当我实例化一个卡夫卡消费者时Java 卡夫卡:如何启用客户端日志记录?,java,logging,apache-kafka,slf4j,Java,Logging,Apache Kafka,Slf4j,当我实例化一个卡夫卡消费者时 KafkaConsumer<String,String> consumer = new KafkaConsumer<String,String>(props); 如何启用客户端程序的日志记录?将此属性文件src/main/resources/log4j.properties添加到项目中: $ cat src/main/resources/log4j.properties # Root logger option log4j.rootLog
KafkaConsumer<String,String> consumer = new KafkaConsumer<String,String>(props);
如何启用客户端程序的日志记录?将此属性文件
src/main/resources/log4j.properties
添加到项目中:
$ cat src/main/resources/log4j.properties
# Root logger option
log4j.rootLogger=DEBUG, stdout
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
这将启用日志记录。然后可以设置标准选项
例如调试级别、输出格式等,根据日志记录文档。另一种方法是排除log4j工件log4j log4j
$ cat src/main/resources/log4j.properties
# Root logger option
log4j.rootLogger=DEBUG, stdout
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n