jetty 热部署

<plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <configuration>
                    <scanIntervalSeconds>1</scanIntervalSeconds>
                    <stopPort>8080</stopPort>
                    <stopKey>bar</stopKey>
                    <connectors>
                        <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
                            <port>8080</port>
                            <maxIdleTime>60000</maxIdleTime>
                        </connector>
                    </connectors>
                    <webAppConfig>
                        <contextPath>/</contextPath>
                    </webAppConfig>
                </configuration>
            </plugin>