我正在开发一个SpringMVC Web应用程序，使用了Maven（Web应用程序原型）、Spring 5、Java 17和Tomcat9.0;
当我尝试部署我的工件时，我得到java.lang.ClassNotFoundException：ServletException，我不明白为什么，因为我使用的是Tomcat 9.0，它使用了javax包。
但是当我在Tomcat 10.x上部署时，它工作得非常好。
这是我的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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>spring-mvc-demo</artifactId>
<packaging>war</packaging>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
</properties>
<version>1.0-SNAPSHOT</version>
<name>spring-mvc-demo Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument</artifactId>
<version>6.0.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>5.3.25</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>5.3.25</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>5.3.25</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context-indexer -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-indexer</artifactId>
<version>5.3.25</version>
<scope>optional</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-instrument -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jms -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-messaging -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-messaging</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-orm -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-oxm -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-r2dbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-r2dbc</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.3.25</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>6.0.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webflux -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webflux</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-websocket -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-websocket</artifactId>
<version>5.3.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>spring-mvc-demo</finalName>
</build>
</project>
1条答案
按热度按时间nzk0hqpo1#
问题是你的依赖关系，你混合了来自不同版本框架的jar。在这个例子中，框架是Spring，你混合了来自版本5.3.25和6.0.5的jar。永远不要混合来自不同版本框架的jar（不管是什么框架），因为这是等待发生的麻烦。
修复所有匹配的版本。
**PRO-TIP：**使用
dependencyManagement部分并导入Spring Framework BOM，这样您只需定义1个版本，而不是为每个模块定义一个版本。