Spring boot nested tomcat logs

Question

I use Tomcat's built-in spring boot with spring boot 1.5.9, I also use Log4j2.

I have been having problems downloading lately, so I want to better understand Tomcat logs [not access logs], I tried (in application.properties):

logging.level.org.apache.tomcat: INFO
logging.level.org.apache.catalina: INFO

but none of the above worked. Is there any other way to achieve this?

Answer 1

Found it !! You can now see the Embedded Tomcat internal logs in the Log4j application log file in 3 simple steps:

1] add to your pom:

 <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-jul</artifactId>
     </dependency>

2] add a new JVM parameter to your working argument, for example:

java -Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager -jar target/demo-0.0.1-SNAPSHOT.jar

3] add to your application. Properties:

logging.level.org.apache=DEBUG

Enjoy your life ! :)

: , Log4j JUL ( , tomcat), JUL Log4j.

: Spring boot 1.5.10 ( ) , , , :

https://github.com/spring-projects/spring-boot/issues/2923#issuecomment-358451260

Answer 2

. "WAR" spring. tomcat , (JULI) .

• JULI ( CATALINA_HOME/bin/tomcat-juli.jar) Tomcat Java Logging (CATALINA_HOME/conf/logging.properties).

• Tomcat JULI Log4j (tomcat-juli.jar) Extras Tomcat (http://tomcat.apache.org/download-70.cgi). CATALINA_HOME/bin.

• Tomcat JULI (tomcat-juli-adapters.jar) Extras Tomcat. CATALINA_HOME/lib.

• Log4j ( 1.2 ) CATALINA_HOME/lib.

• Log4j : CATALINA_HOME/lib/log4j.properties. log4j, Java Logging .

• Tomcat.

Log4j. , Tomcat :

log4j.rootLogger=INFO, CATALINA
//Define all the appenders log4j.appender.CATALINA=org.apache.log4j.DailyRollingFileAppender
log4j.appender.CATALINA.File=${catalina.base}/logs/catalina.
log4j.appender.CATALINA.Append=true log4j.appender.CATALINA.Encoding=UTF-8

//Roll-over the log once per day
log4j.appender.CATALINA.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.CATALINA.layout = org.apache.log4j.PatternLayout

log4j.appender.CATALINA.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
log4j.appender.LOCALHOST=org.apache.log4j.DailyRollingFileAppender
log4j.appender.LOCALHOST.File=${catalina.base}/logs/localhost.
log4j.appender.LOCALHOST.Append=true log4j.appender.LOCALHOST.Encoding=UTF-8
log4j.appender.LOCALHOST.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.LOCALHOST.layout = org.apache.log4j.PatternLayout
log4j.appender.LOCALHOST.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
log4j.appender.MANAGER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.MANAGER.File=${catalina.base}/logs/manager.
log4j.appender.MANAGER.Append=true log4j.appender.MANAGER.Encoding=UTF-8
log4j.appender.MANAGER.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.MANAGER.layout = org.apache.log4j.PatternLayout
log4j.appender.MANAGER.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
log4j.appender.HOST-MANAGER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.HOST-MANAGER.File=${catalina.base}/logs/host-manager.
log4j.appender.HOST-MANAGER.Append=true log4j.appender.HOST-MANAGER.Encoding=UTF-8
log4j.appender.HOST-MANAGER.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.HOST-MANAGER.layout = org.apache.log4j.PatternLayout
log4j.appender.HOST-MANAGER.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Encoding=UTF-8
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern = %d [%t] %-5p %c- %m%n

//Configure which loggers log to which appenders
log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].
[localhost]=INFO,
 LOCALHOST
log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].
[localhost].[/manager]=INFO,MANAGER
log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].
[localhost].[/host-manager]=
INFO, HOST-
MANAGER

GIT @

spring , , Tomcat. TomcatEmbeddedServletContainerFactory.class, spring .

Answer 3

url, , tomcat. , yaml , spring boot . .

# LOGGING
logging.config= # Location of the logging configuration file. For instance `classpath:logback.xml` for Logback
logging.exception-conversion-word=%wEx # Conversion word used when logging exceptions.
logging.file= # Log file name. For instance `myapp.log`
logging.level.*= # Log levels severity mapping. For instance `logging.level.org.springframework=DEBUG`
logging.path= # Location of the log file. For instance `/var/log`
logging.pattern.console= # Appender pattern for output to the console. Only supported with the default logback setup.
logging.pattern.file= # Appender pattern for output to the file. Only supported with the default logback setup.
logging.pattern.level= # Appender pattern for log level (default %5p). Only supported with the default logback setup.
logging.register-shutdown-hook=false # Register a shutdown hook for the logging system when it is initialized.

server.tomcat.accept-count= # Maximum queue length for incoming connection requests when all possible request processing threads are in use.
server.tomcat.accesslog.buffered=true # Buffer output such that it is only flushed periodically.
server.tomcat.accesslog.directory=logs # Directory in which log files are created. Can be relative to the tomcat base dir or absolute.
server.tomcat.accesslog.enabled=false # Enable access log.
server.tomcat.accesslog.file-date-format=.yyyy-MM-dd # Date format to place in log file name.
server.tomcat.accesslog.pattern=common # Format pattern for access logs.
server.tomcat.accesslog.prefix=access_log # Log file name prefix.
server.tomcat.accesslog.rename-on-rotate=false # Defer inclusion of the date stamp in the file name until rotate time.
server.tomcat.accesslog.request-attributes-enabled=false # Set request attributes for IP address, Hostname, protocol and port used for the request.
server.tomcat.accesslog.rotate=true # Enable access log rotation.
server.tomcat.accesslog.suffix=.log # Log file name suffix.
server.tomcat.additional-tld-skip-patterns= # Comma-separated list of additional patterns that match jars to ignore for TLD scanning.
server.tomcat.background-processor-delay=30 # Delay in seconds between the invocation of backgroundProcess methods.
server.tomcat.basedir= # Tomcat base directory. If not specified a temporary directory will be used.
server.tomcat.internal-proxies=10\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}|\\
        192\\.168\\.\\d{1,3}\\.\\d{1,3}|\\
        169\\.254\\.\\d{1,3}\\.\\d{1,3}|\\
        127\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}|\\
        172\\.1[6-9]{1}\\.\\d{1,3}\\.\\d{1,3}|\\
        172\\.2[0-9]{1}\\.\\d{1,3}\\.\\d{1,3}|\\
        172\\.3[0-1]{1}\\.\\d{1,3}\\.\\d{1,3} # regular expression matching trusted IP addresses.
server.tomcat.max-connections= # Maximum number of connections that the server will accept and process at any given time.
server.tomcat.max-http-post-size=0 # Maximum size in bytes of the HTTP post content.
server.tomcat.max-threads=0 # Maximum amount of worker threads.
server.tomcat.min-spare-threads=0 # Minimum amount of worker threads.
server.tomcat.port-header=X-Forwarded-Port # Name of the HTTP header used to override the original port value.
server.tomcat.protocol-header= # Header that holds the incoming protocol, usually named "X-Forwarded-Proto".
server.tomcat.protocol-header-https-value=https # Value of the protocol header that indicates that the incoming request uses SSL.
server.tomcat.redirect-context-root= # Whether requests to the context root should be redirected by appending a / to the path.
server.tomcat.remote-ip-header= # Name of the http header from which the remote ip is extracted. For instance `X-FORWARDED-FOR`
server.tomcat.uri-encoding=UTF-8 # Character encoding to use to decode the URI.

Answer 4

Java Util Logging, Log4J, Log4J2 Logback. .

: fooobar.com/questions/1692333/...

tomcat spring . - . , , , .

spring .

.

Answer 5

tomcat org.springframework.boot.context.embedded.tomcat application.properties

logging.level.org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer=INFO

Answer 6

slf4j Spring Boot 2 Tomcat :

• :

  <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>jul-to-slf4j</artifactId>
      <version>${slf4j.version}</version>
  </dependency>
  

• :

  @PostConstruct
  void postConstruct() {
      SLF4JBridgeHandler.install();
  }
  

• application.yaml

  logging:
      level:
        org.apache.catalina: off
  

• ErrorController

  @Controller
  @Slf4j
  public class ErrorController implements 
                org.springframework.boot.web.servlet.error.ErrorController {
      private static final String ERROR_PATH = "/error";
  
     @Autowired
     private ErrorAttributes errorAttributes;
  
     @Override
     public String getErrorPath() {
        return ERROR_PATH;
     }
  
     @RequestMapping(ERROR_PATH)
     public ModelAndView error(HttpServletRequest request) {
         return processException(errorAttributes.getError(new ServletWebRequest(request)));
     }
  }