1、配置dynamic web module3.0

在web.xml文件中

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
	version="3.0" 
	metadata-complete="true">
</web-app>

2、was not found starting with ‘plugins’

<plugins></plugins>在标签<build></build>内