在jetty的maven插件中有两种方式设置jetty的端口（默认为:8080）。

第一种，通过命令行，在启动jetty的时候设置：mvn -Djetty.port=10086 jetty:run

第二种，是在maven的pom文件中进行设置：
<connectors>
<connector implementation=“org.eclipse.jetty.server.nio.SelectChannelConnector”>
<port>9999</port>
</connector>
</connectors>

<plugin>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>maven-jetty-plugin</artifactId>
        <version>6.1.26</version>
        <configuration>             
            <scanIntervalSeconds>3</scanIntervalSeconds>
            		</connectors>
     				   <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
							<port>9999</port>
						
						</connector>     
					</connectors>          
            <scanTargetPatterns>
                <scanTargetPattern>
                    <directory>src/main/webapp/WEB-INF</directory>
                    <excludes>
                        <exclude>**/*.jsp</exclude>
                    </excludes>
                    <includes>
                        <include>**/*.properties</include>
                        <include>**/*.xml</include>
                    </includes>
                </scanTargetPattern>
            </scanTargetPatterns>
        </configuration>