Spring Boot 未在外部 Tomcat 10 上运行

Question

Spring Boot 未在外部 tomcat 上运行

我之前曾在 Java 1.8 和 Tomcat 8 上使用 Spring Boot。我最近启动了一个新项目，升级到 Java 17、Tomcat 10。

我正在尝试部署为在外部 tomcat 中运行的战争，但它不起作用。

我在实际生产环境中现有的Java 1.8和Tomcat 8中运行和部署该项目没有任何问题。我想你知道如何将 Spring Boot 部署为战争。

我已经阅读了以下链接的 Spring Boot 官方文档。 https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#howto.traditional-deployment.war

我的项目的 pom.xml 应用了以下设置。

<packaging>war</packaging>

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-tomcat</artifactId>
   <scope>provided</scope>
</dependency>

和

<configuration>
   <mainClass>mypackage.SpringBootCoreApplication</mainClass>
</configuration>

并且SpringBootApplication也配置好了。

@SpringBootApplication
public class SpringBootCoreApplication extends SpringBootServletInitializer {

   @Override
   protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
      return application.sources(SpringBootCoreApplication.class);
   }

   public static void main(String[] args) {
      SpringApplication.run(SpringBootCoreApplication.class, args);
   }

}

现在，我运行Tomcat来部署为war，并输出以下日志。

31-Oct-2022 19:52:47.382 INFO [main] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
31-Oct-2022 19:52:43.818 INFO [main] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [/usr/local/tomcat/webapps/ROOT.war]
31-Oct-2022 19:52:43.780 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet engine: [Apache Tomcat/10.1.1]
31-Oct-2022 19:52:43.779 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
31-Oct-2022 19:52:43.686 INFO [main] org.apache.catalina.startup.Catalina.load Server initialization in [961] milliseconds
31-Oct-2022 19:52:43.618 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
31-Oct-2022 19:52:43.069 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 3.0.2 15 Mar 2022]
31-Oct-2022 19:52:43.063 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded Apache Tomcat Native library [2.0.1] using APR version [1.7.0].
31-Oct-2022 19:52:43.059 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/usr/local/tomcat/temp
31-Oct-2022 19:52:43.059 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/usr/local/tomcat
31-Oct-2022 19:52:43.059 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/usr/local/tomcat
31-Oct-2022 19:52:43.058 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dorg.apache.catalina.security.SecurityListener.UMASK=0027
31-Oct-2022 19:52:43.058 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
31-Oct-2022 19:52:43.058 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
31-Oct-2022 19:52:43.058 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
31-Oct-2022 19:52:43.058 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties
31-Oct-2022 19:52:43.058 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
31-Oct-2022 19:52:43.058 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.util.concurrent=ALL-UNNAMED
31-Oct-2022 19:52:43.057 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.util=ALL-UNNAMED
31-Oct-2022 19:52:43.057 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.io=ALL-UNNAMED
31-Oct-2022 19:52:43.057 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.lang=ALL-UNNAMED
31-Oct-2022 19:52:43.033 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /usr/local/tomcat
31-Oct-2022 19:52:43.033 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /usr/local/tomcat
31-Oct-2022 19:52:43.033 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Eclipse Adoptium
31-Oct-2022 19:52:43.032 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           17.0.4.1+1
31-Oct-2022 19:52:43.032 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /opt/java/openjdk
31-Oct-2022 19:52:43.031 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
31-Oct-2022 19:52:43.031 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            4.4.180+
31-Oct-2022 19:52:43.031 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Linux
31-Oct-2022 19:52:43.030 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version number: 10.1.1.0
31-Oct-2022 19:52:43.030 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Oct 3 2022 12:42:14 UTC
31-Oct-2022 19:52:43.017 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version name:   Apache Tomcat/10.1.1
NOTE: Picked up JDK_JAVA_OPTIONS:  --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
Using CATALINA_OPTS:   
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Using JRE_HOME:        /opt/java/openjdk
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using CATALINA_HOME:   /usr/local/tomcat
Using CATALINA_BASE:   /usr/local/tomcat
31-Oct-2022 19:52:41.636 INFO [Thread-1] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8080"]
31-Oct-2022 19:52:41.627 INFO [Thread-1] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8080"]
31-Oct-2022 19:52:41.612 INFO [Thread-1] org.apache.catalina.core.StandardService.stopInternal Stopping service [Catalina]
31-Oct-2022 19:52:41.608 INFO [Thread-1] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8080"]
31-Oct-2022 19:48:16.236 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/usr/local/tomcat/webapps/ROOT.war] has finished in [4,098] ms

我记得 Spring Boot 不会以这样的日志结束。项目正在运行，但 spring boot 似乎没有运行。

日志显示成功，但实际上并没有连接。

我阅读了 Spring Boot 官方文档、许多问题/答案以及博客文章，但无法解决。

我不知道我配置错了什么。请帮我

Answer 1

我找到了原因。我写这篇文章是为了那些因为同样的原因而苦苦挣扎的人。

升级到 Tomcat 10 是一个问题。

Tomcat10 是当前不支持的 JakartaEE 规范的实现。Spring（和Spring Boot）目前仅支持JavaEE，不支持JakartaEE。计划在今年晚些时候为 Spring6 和 SpringBoot3 提供 Jakarta EE 支持。

有两种选择。

1. 将war部署到该webapps-javaee目录而不是目录中webapps。Tomcat使用转换工具自动转换。我用这个解决了同样的问题。
2. 使用支持 Java EE 的 Tomcat 9