【发布时间】：2020-06-30 02:51:57
【问题描述】：
我一直致力于将 Spring Boot Web 应用程序与 Jenkins 和 Tomcat 9 集成。当我在 Eclipse 中将它作为 Spring Boot 应用程序运行时，一切似乎都很好。
我现在正在设置 Jenkins 和 test/qa/show-and-tell 环境。当我尝试在独立的 Tomcat9 环境中部署 war 时，我的应用无法正常启动。
我遵循spring boot docs 并让 Eclipse 为我完成大部分 Tomcat 集成。我还使用以下线程作为清单... How to deploy spring boot web application on tomcat server
我在我的开发机器上以及将 Jenkins 和 Tomcat 9 作为服务运行的目标环境中获得了相同的堆栈跟踪。
pom.xml
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myapp</groupId>
<artifactId>myapp</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<maven.test.skip>true</maven.test.skip>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<!-- <exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>-->
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<skipTests>${skipTests}</skipTests>
</configuration>
</plugin>
</plugins>
</build>
application.properties
spring.datasource.url=jdbc:mysql://localhost:3305/myapp?useSSL=false
spring.datasource.username=*****
spring.datasource.password=*****
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update
spring.jpa.database-platform=org.hibernate.dialect.MySQL55Dialect
spring.jpa.generate-ddl=true
spring.jpa.show-sql=true
spring.mvc.view.prefix: /WEB-INF/
spring.mvc.view.suffix: .jsp
spring.messages.basename=validation
server.servlet.context-path=/
spring.jackson.serialization.wrap-root-value=false
WebApplication.java
@SpringBootApplication
@EntityScan("com.myapp.model")
public class WebApplication extends SpringBootServletInitializer implements ApplicationRunner{
private static final Logger logger = LogManager.getLogger(WebApplication.class);
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(WebApplication.class);
}
@Override
public void run(ApplicationArguments applicationArguments) throws Exception {
logger.debug("Debugging log");
logger.info("Info log");
logger.warn("Hey, This is a warning!");
logger.error("Oops! We have an Error. OK");
logger.fatal("Snap! Fatal error. Please fix me.");
}
public static void main(String[] args) throws Exception {
SpringApplication.run(WebApplication.class, args);
}
}
Tomcat 登录错误
18-Mar-2020 18:43:38.712 SEVERE [http-nio-8080-exec-7] org.apache.catalina.core.StandardContext.startInternal Error during ServletContainerInitializer processing
javax.servlet.ServletException: Failed to instantiate WebApplicationInitializer class
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:157)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5140)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:493)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1642)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(Unknown Source)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(Unknown Source)
at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1590)
at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:294)
at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:212)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:211)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:666)
at org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java:348)
at org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:53)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:688)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1594)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.StackOverflowError
at java.lang.reflect.InvocationTargetException.<init>(Unknown Source)
at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:110)
at org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:123)
at org.apache.logging.log4j.util.StackLocatorUtil.getCallerClass(StackLocatorUtil.java:55)
at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:42)
at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:46)
at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
at org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:37)
at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:29)
at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:52)
at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
【问题讨论】：
-
这些是您真正的依赖还是用于发布的简化版本？如果它们是真实的，则您的服务器包含一个额外的 jar，用于将日志记录路由到 slf4j（或 log4j2），这会导致错误，因为您拥有的依赖项中包含了另一种方式。 slf4j -> log4j2 -> slf4j -> log4j2 -> .... 直到发生堆栈溢出为止。
-
@M.Deinum - 感谢您的快速回复！那是我的实际 POM……我猜这个页面：logicbig.com/tutorials/spring-framework/spring-boot/log4j2.html 列出了我需要的罐子……有没有更简单的方法来登录我的堆栈，或者我应该继续在这个页面中包含 5 个罐子指导我的 Maven 依赖项？
-
这些罐子已经包含在您正在使用的启动器中。但是你为什么不直接使用默认的日志框架，Logback？你也排除了（我在你的 pom 中没有看到）。
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我只是按照我找到的教程进行操作...我决定暂时去掉日志记录，直到我可以启动并运行测试环境。我对 log4j 比较熟悉，因为我过去使用过它，并且复杂的事情将 log4j2 带入了图片......
-
Logback 是默认设置，您应该使用 SLF4J 作为日志记录 API。
标签： spring spring-boot maven tomcat9