Spring Boot3部署外部Tomcat10遇Jakarta Bean Validation无提供者异常

使用Spring Boot 3.0.0 + Tomcat 10.0，本地运行正常，但部署到外部Tomcat服务器时抛出以下异常：

jakarta.validation.NoProviderFoundException: Unable to create a Configuration, because no Jakarta Bean Validation provider could be found. Add a provider like Hibernate Validator (RI) to your classpath.
    at jakarta.validation.Validation$GenericBootstrapImpl.configure(Validation.java:291) ~[jakarta.validation-api-3.0.2.jar:na]
    at jakarta.validation.Validation.buildDefaultValidatorFactory(Validation.java:103) ~[jakarta.validation-api-3.0.2.jar:na]
    at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:479) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
    at org.hibernate.cfg.beanvalidation.TypeSafeActivator.activate(TypeSafeActivator.java:82) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
    at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.integrate(BeanValidationIntegrator.java:137) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:285) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:415) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1425) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:66) ~[spring-orm-6.0.2.jar:6.0.2]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:376) ~[spring-orm-6.0.2.jar:6.0.2]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.0.2.jar:6.0.2]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.0.2.jar:6.0.2]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:352) ~[spring-orm-6.0.2.jar:6.0.2]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1797) ~[spring-beans-6.0.2.jar:6.0.2]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1747) ~[spring-beans-6.0.2.jar:6.0.2]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599) ~[spring-beans-6.0.2.jar:6.0.2]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-6.0.2.jar:6.0.2]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.2.jar:6.0.2]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.2.jar:6.0.2]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.2.jar:6.0.2]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.2.jar:6.0.2]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1130) ~[spring-context-6.0.2.jar:6.0.2]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:905) ~[spring-context-6.0.2.jar:6.0.2]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584) ~[spring-context-6.0.2.jar:6.0.2]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.0.0.jar:3.0.0]

当前pom.xml依赖配置：

<dependency>
        <groupId>com.microsoft.sqlserver</groupId>
        <artifactId>mssql-jdbc</artifactId>
        <scope>runtime</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.hibernate.validator/hibernate-validator -->
    <dependency>
        <groupId>org.hibernate.validator</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>8.0.0.Final</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
  </dependency>
    <dependency>
  <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-jsr310</artifactId>
    </dependency>
    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-validation</artifactId>
    </dependency>

问题核心是部署到外部Tomcat时，Bean Validation的实现类未被正确打包到WAR，或类加载优先级导致Tomcat无法找到Hibernate Validator。

• 移除重复依赖：spring-boot-starter-validation已经包含了适配Spring Boot 3.0的Hibernate Validator版本，手动添加的hibernate-validator 8.0.0.Final可能引发版本冲突或打包排除，直接删除这段依赖：

  <!-- 删除以下重复依赖 -->
  <!-- <dependency>
          <groupId>org.hibernate.validator</groupId>
          <artifactId>hibernate-validator</artifactId>
          <version>8.0.0.Final</version>
      </dependency> -->
  

• 确保依赖打包：spring-boot-starter-validation默认scope为compile，会自动打包到WAR的WEB-INF/lib目录，无需额外配置。

• 验证打包结果：执行mvn clean package后，打开生成的WAR包，检查WEB-INF/lib下是否包含hibernate-validator-*.jar、jakarta.validation-api-*.jar等相关文件。

• 排查Tomcat冲突：如果以上步骤无效，检查外部Tomcat的lib目录是否存在旧版javax.validation-api相关JAR（注意是javax而非jakarta），这类文件会和Spring Boot 3的Jakarta规范冲突，直接删除即可。

内容的提问来源于stack exchange，提问作者Ravi