takeaway

For project requirements, you need to modify the Tomcat version when upgrading or replacing the tomcat version.

use

steps

Modify the depend on

The pom.xml file is as follows:

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
         <! -- Add tomcat version number information -->
        <tomcat.version>9.0.43</tomcat.version>
</properties><-- add the following tomcat information -->Copy the code

    <dependencies>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-core</artifactId>
            <version>${tomcat.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-el</artifactId>
            <version>${tomcat.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-websocket</artifactId>
            <version>${tomcat.version}</version>
        </dependency>
      </dependencies>
Copy the code

validation

Methods a

View the version of Tomcat in MAVEN in IDEA:



Way 2

View the console log as follows:



END

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