java.lang.ClassNotFoundException: org.apache.log4j.Logger
Oct 05 2020
Estoy tratando de ejecutar una aplicación Spring pero sigue arrojando este error:
"Servlet.service () para el servlet [dispatcherServlet] en contexto con la ruta [] arrojó una excepción [Error en el envío del controlador; la excepción anidada es java.lang.NoClassDefFoundError: org / apache / log4j / Logger] con la causa raíz
java.lang.ClassNotFoundException: org.apache.log4j.Logger "
A continuación se muestra el seguimiento de la pila del error.
2020-10-05 12:52:34.835 ERROR 20412 --- [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: org/apache/log4j/Logger] with root cause
java.lang.ClassNotFoundException: org.apache.log4j.Logger
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_265]
at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[na:1.8.0_265]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352) ~[na:1.8.0_265] at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[na:1.8.0_265] at com.mis.serverdata.utils.STWLogger.<init>(STWLogger.java:26) ~[ServerSharedUtils-1.1.4.jar:na] at com.mis.serverdata.utils.STWLogger.getLogger(STWLogger.java:35) ~[ServerSharedUtils-1.1.4.jar:na] at com.moveinsync.routeconfiguration.application.services.RouteConfigurationServiceAmazonS3Impl.getRoutingParameters(RouteConfigurationServiceAmazonS3Impl.java:102) ~[classes/:na] at com.moveinsync.routeconfiguration.application.controllers.RouteConfigurationController.getConfiguration(RouteConfigurationController.java:23) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_265] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_265] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_265] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_265] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.38.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.9.RELEASE.jar:5.2.9.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.38.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.38.jar:9.0.38] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.38.jar:9.0.38]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) [tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.38.jar:9.0.38] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_265] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_265]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.38.jar:9.0.38]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_265]
Este es el método getRoutingParameters en la clase RouteConfigurationServiceAmazonS3Impl donde ocurre el error en la línea STWLogger . No sé cómo arreglar esto. ¿Nadie?
@Override
public RoutingParameters getRoutingParameters(String businessUnit) throws Exception {
RoutingParameters params = null;
String content = getRouteConfigurationData(businessUnit,
Constants.ROUTE_PARAMETER_FILENAME);
if (content == null) {
STWLogger.getLogger().debug("No Parameter Configuration found for " + businessUnit + "\nFetching Configuration for Default for businessUnit ");
content = getRouteConfigurationData(Constants.ROUTE_CONFIGURATION_DEFAULT_BUSINESSUNIT, Constants.ROUTE_PARAMETER_FILENAME);
if (content == null) {
return params;
}
params = GsonUtils.getGson().fromJson(content, RoutingParameters.class);
saveRoutingParameters(businessUnit, params);
return params;
}
params = GsonUtils.getGson().fromJson(content, RoutingParameters.class);
return params;
}
Actualización : hice los cambios basados en el segundo enfoque de la primera respuesta que se proporciona a continuación, pero el error persiste.
A continuación se muestra el archivo pom.xml actualizado para mi aplicación
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.moveinsync.routeconfiguration</groupId>
<artifactId>RouteConfigurationCRUD</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>RouteConfigurationCRUD</name>
<description>Spring Application for Route Configuration</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Hoxton.SR8</spring-cloud.version>
</properties>
<dependencies>
<!-- MoveInSync Dependencies-->
<dependency>
<groupId>com.moveinsync.routeconfiguration</groupId>
<artifactId>mis-routeconfiguration-model</artifactId>
<version>2.1.4-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.moveinsync.routeconfiguration</groupId>
<artifactId>mis-routeconfiguration-client</artifactId>
<version>2.1.8-SNAPSHOT</version>
</dependency>
<!-- Spring Boot -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-aws</artifactId>
<version>2.2.2.RELEASE</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<!-- SLF4J-API -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.30</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.30</version>
<scope>test</scope>
</dependency>
<!-- Link SLF4J and log4j2 -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.0.1</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.9.RELEASE</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-aws-context -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-aws-context</artifactId>
<version>2.2.2.RELEASE</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.3.4.RELEASE</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.2.0</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>theMainClass</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>
Respuestas
1 AdrienFerrand Oct 05 2020 at 08:29
Okay. La línea defectuosa aquí es:
STWLogger.getLogger().debug("No Parameter Configuration found for " + businessUnit + "\nFetching Configuration for Default for businessUnit ");
No puedo encontrar el código fuente de la STWLoggerclase para confirmar mediante un análisis directo, pero parece que el seguimiento de la pila intenta instanciar el sistema de registro explícitamente a través de Log4j, en lugar de confiar en la API de registro estándar SLF4J que seleccionaría el sistema de registro apropiado en tiempo de ejecución.
El problema aquí es que no tiene Log4j disponible con la configuración estándar de Spring Boot que aplicó. De hecho, Spring Boot importará y usará Logback como la solución de registro predeterminada en su ruta de clases, proporcionada por el iniciador spring-boot-starter-loggingque es una dependencia del iniciador spring-boot-starter-webque usa en usted pom.xml.
Tienes dos soluciones en mi opinión.
- Reemplace la línea defectuosa por una llamada a la API SLF4J, que utilizará Logback automáticamente detrás. Podría ser algo como:
package org.mypackage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TestLog {
private static final Logger LOGGER = LoggerFactory.getLogger(TestLog.class);
public void test() {
LOGGER.info("Your log.");
}
}
- Reemplace Logback con Log4j en su aplicación Spring Boot. Puede seguir estas guías para hacerlo:
- https://docs.spring.io/spring-boot/docs/2.0.x/reference/html/howto-logging.html#howto-configure-log4j-for-logging
- https://www.baeldung.com/spring-boot-logging#log4j2-configuration-logging