<plugin>
        <groupId>org.eclipse.jetty</groupId>
        <artifactId>jetty-maven-plugin</artifactId>
        <version>9.4.9.v20180320</version>
        <!--<groupId>org.mortbay.jetty</groupId>-->
        <!--<artifactId>maven-jetty-plugin</artifactId>-->
        <!--<version>6.1
 
.10</version>-->
        <configuration>
            <!-- http://www.eclipse.org/jetty/documentation/current/jetty-maven-plugin.html -->
            <scanIntervalSeconds>0</scanIntervalSeconds>
            <!--  By Default, jetty start on port 8080 -->
            <httpConnector>
                <port>9092
 
</port>
            </httpConnector>
            <systemProperties>
                <force>true</force>
                <systemProperty>
                    <name>catalina.home</name>
                    <value>${project.build.directory}/logs/</value>
                </systemProperty>
            </systemProperties>
        </configuration>

    </plugin>

實現不需要重啟項目，而實現了修改代碼後的更新

jetty插件實現 熱部署