我瞅你这情况是：自己打包的WAR包在本地Java项目跑、Tomcat8.5部署都没问题，一放到Tomcat9上就部署失败了。先把你贴的报错日志整理一下：

10-Feb-2025 15:19:14.866 SEVERE [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\test.war]
    java.lang.IllegalStateException: Error starting child
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:602)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:571)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:603)
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1014)
        at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1866)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
        at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:816)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:468)
        at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1633)
        at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308)
        at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:109)
        at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:973)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1172)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1176)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1154)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
        at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358)
        at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
        at java.base/java.lang.Thread.run(Thread.java:1583)
    Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/test]]
        at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:406)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:179)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:599)
        ... 24 more
    Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'adminDaoImpl': Unsatisfied dependency expressed through field 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in com.baseltech.BaselTechBootApplication: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.hibernate.SessionFactory]: Factory method 'getSessionFactory' threw exception; nested exception is org.hibernate.MappingException: Failed to scan classpath for unlisted classes
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1420)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
        at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:173)
        at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:153)
        at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:95)
        at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4450)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
        ... 25 more
    Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in com.baseltech.BaselTechBootApplication: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.hibernate.SessionFactory]: Factory method 'getSessionFactory' threw exception; nested exception is org.hibernate.MappingException: Failed to scan classpath for unlisted classes
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:655)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:635)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1307)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
        ... 48 more
    Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.hibernate.SessionFactory]: Factory method 'getSessionFactory' threw exception; nested exception is org.hibernate.MappingException: Failed to scan classpath for unlisted classes
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650)
        ... 61 more
    Caused by: org.hibernate.MappingException: Failed to scan classpath for unlisted classes
        at org.springframework.orm.hibernate5.LocalSes

从日志里的org.hibernate.MappingException: Failed to scan classpath for unlisted classes能看出来，问题根源大概率是下面两个情况之一：

• Java编译版本太高：Tomcat9默认支持Java8到11（不同小版本略有区别），要是你项目用Java12及以上版本编译，Tomcat9里的ASM库（用来解析类文件的工具）不支持新的类文件版本，自然扫描失败。
• Hibernate和Tomcat的ASM依赖冲突：Tomcat9自带了ASM库，而你项目里Hibernate依赖的ASM版本和Tomcat的不一样，类加载的时候就会冲突，导致扫描类路径失败。

给你几个解决办法，按顺序试试：

办法一：调整项目的Java编译版本 #

先看看你项目的编译版本配置：

• 用Maven的话，打开pom.xml找<maven.compiler.source>和<maven.compiler.target>，改成Tomcat9支持的版本（推荐Java8或11）：

<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>

• 用Gradle的话，修改build.gradle里的sourceCompatibility和targetCompatibility：

sourceCompatibility = 1.8
targetCompatibility = 1.8

改完重新打包WAR，再部署到Tomcat9上试试。

办法二：排除Hibernate里的ASM依赖，用Tomcat自带的 #

如果是依赖冲突的问题，以Maven为例，在Hibernate核心依赖里排除ASM的传递依赖：

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>你的Hibernate版本</version>
    <exclusions>
        <exclusion>
            <groupId>org.ow2.asm</groupId>
            <artifactId>asm</artifactId>
        </exclusion>
        <exclusion>
            <groupId>org.ow2.asm</groupId>
            <artifactId>asm-commons</artifactId>
        </exclusion>
        <exclusion>
            <groupId>org.ow2.asm</groupId>
            <artifactId>asm-tree</artifactId>
        </exclusion>
    </exclusions>
</dependency>

这样项目就会用Tomcat9自带的ASM库，避免版本冲突。

办法三：升级Tomcat9到最新小版本 #

要是你用的Tomcat9是比较老的版本，可能对高版本Java支持不够完善，去Tomcat官网下最新的Tomcat9.x版本，替换现有环境后再部署WAR包。

备注：内容来源于stack exchange，提问作者SWIK