Tomcat 9 無法加載 Spring Boot 應用程序

Question

我正在將 Spring Boot 應用程序部署到現有的 Tomcat 9 實例。 當 tomcat 嘗試加載上下文時，出現以下錯誤：

org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive 
    java.lang.IllegalStateException: Error starting child
            at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
            at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
            at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:706)
            at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
            at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1848)
            at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
            at java.util.concurrent.FutureTask.run(FutureTask.java:266)
            at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
            at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
            at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773)
            at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
            at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1620)
            at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:305)
            at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
            at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1151)
            at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1353)
            at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1357)
            at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1335)
            at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
            at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
            at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
            at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
            at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
            at java.lang.Thread.run(Thread.java:748)
    Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/wservices]]
            at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
            at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
            at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
            ... 25 more
    Caused by: java.lang.NoClassDefFoundError: org/glassfish/jersey/internal/l10n/LocalizableMessageFactory$ResourceBundleSupplier
            at org.glassfish.jersey.server.spring.SpringWebApplicationInitializer.onStartup(SpringWebApplicationInitializer.java:46)
            at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172)
            at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5128)
            at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
            ... 26 more
    Caused by: java.lang.ClassNotFoundException: org.glassfish.jersey.internal.l10n.LocalizableMessageFactory$ResourceBundleSupplier
            at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
            at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)

如果我自己運行應用程序，它使用嵌入式 tomcat 9 引擎運行得很好。

這是我在 pom 文件中使用的 spring 依賴項：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.5.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

        <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jersey</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-web</artifactId>
        <exclusions>
            <exclusion>
                <artifactId>logback-classic</artifactId>
                <groupId>ch.qos.logback</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-oracle</artifactId>
        <version>1.0.0.RELEASE</version>
    </dependency>

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

任何幫助將不勝感激。

Answer 1

您已經打包了一個所謂的 über-jar，它在一個 jar 文件中包含每個運行時依賴項。 它還包含一些類加載調整以從 jar 加載這些依賴項。 這在 Tomcat 中是行不通的。 您需要打包為 Web 應用程序存檔。

你需要改變

<project>
    ...
    <packaging>war</packaging>

請參閱 此處了解更多詳細信息。

Answer 2

再挖了一點，問題是被拉進來的球衣版本是不正確的。 該項目正在引入 Jersey 2.6，這是 Spring Boot 2.2.5 的錯誤版本。 Jersey 2.6（其中有問題的類所在的 jersey-common 2.6）不包括 org/glassfish/jersey/internal/l10n/LocalizableMessageFactory$ResourceBundleSupplierclass

一旦我修復了 pom 文件，Tomcat 就會正確加載它。

Answer 3

在 Spring Boot 中，要創建用於部署的 WAR，我們需要 3 個步驟：

1.擴展SpringBootServletInitializer

2.將嵌入式servlet容器標記為提供。

3.更新包裝為戰爭

有關操作步驟，請參閱此鏈接。