java.lang.ClassNotFoundException: org.apache.log4j.Logger

Question

Bir Bahar Uygulaması çalıştırmaya çalışıyorum ama şu hatayı atmaya devam ediyor:

"Servlet [dispatcherServlet] için Servlet.service (), [] yolu bağlamında istisna attı [İşleyici gönderimi başarısız oldu; iç içe geçmiş istisna java.lang.NoClassDefFoundError: org / apache / log4j / Logger] kök nedene sahip

java.lang.ClassNotFoundException: org.apache.log4j.Logger "

Aşağıda hatanın yığın izi verilmiştir.

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]

Bu getRoutingParameters yöntem RouteConfigurationServiceAmazonS3Impl hata neler olup sınıfın STWLogger hattı. Bunu nasıl düzelteceğimi bilmiyorum. Kimse?

    @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;
    }

Güncelleme : Aşağıda verilen 1. cevabın 2. yaklaşımına göre değişiklikleri yaptım ancak hata devam ediyor.

Aşağıda uygulamam için güncellenmiş pom.xml dosyası var

<?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>

Answer 1

Tamam. Buradaki hatalı satır:

STWLogger.getLogger().debug("No Parameter Configuration found for " + businessUnit + "\nFetching Configuration for Default for businessUnit ");

STWLoggerDoğrudan bir analizle onaylanacak sınıfın kaynak kodunu bulamıyorum , ancak yığın izlemeden, uygun günlük kaydı sistemini seçecek standart günlük API SLF4J'ye güvenmek yerine, günlük kaydı sistemini Log4j aracılığıyla açık bir şekilde başlatmaya çalıştığı görülüyor. işlem esnasında.

Buradaki sorun, Log4j'nin uyguladığınız standart Spring Boot yapılandırmasında kullanılamamasıdır. Indeed Spring Boot, sizde kullandığınız spring-boot-starter-loggingbaşlatıcıya bağımlı olan başlatıcı tarafından sağlanan, sınıf yolunuzda varsayılan günlük kaydı çözümü olarak Logback'i içe aktaracak ve kullanacaktır .spring-boot-starter-webpom.xml

Bence iki çözümünüz var.

1. Hatalı hattı, Logback'i otomatik olarak geride kullanacak olan SLF4J API'sine bir çağrı ile değiştirin. Şunun gibi bir şey olabilir:

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.");
    }
}

1. Spring Boot uygulamanızda Logback'i Log4j ile değiştirin. Bunu yapmak için şu kılavuzları takip edebilirsiniz:

• 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