内置tomcat依赖

<tomcat.embed.version>7.0.39</tomcat.embed.version>

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-logging-juli</artifactId>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <scope>provided</scope>
</dependency>

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <scope>provided</scope>
    <version>9.0.41</version>
</dependency>

<build>
    <finalName>ROOT</finalName>
    <plugins>
       <plugin>
          <groupId>org.apache.tomcat.maven</groupId>
          <artifactId>tomcat7-maven-plugin</artifactId>
          <version>2.3-SNAPSHOT</version>
          <executions>
             <execution>
                <id>tomcat-run</id>
                <goals>
                   <goal>exec-war-only</goal>
                </goals>
                <phase>package</phase>
                <configuration>
                   <path>/</path>
                   <finalName>exec.jar</finalName>
                   <httpPort>8127</httpPort>
                </configuration>
             </execution>
          </executions>
       </plugin>
    </plugins>
</build>