如何把普通maven工程变为web工程

 1,把jar修改为war

 2，右击要修改的项目，点Properties修改project facets，选中Dynamic Web Module

 3，新建如下目录

配置web文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/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">
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
	</welcome-file-list>
	<servlet>
		<servlet-name>notifyService</servlet-name>
		<servlet-class>com.qmtian.NotifyService</servlet-class>
	</servlet>
	
	<servlet-mapping>
		<servlet-name>notifyService</servlet-name>
		<url-pattern>/notify</url-pattern>
	</servlet-mapping>
	
	<servlet>
		<servlet-name>loginService</servlet-name>
		<servlet-class>com.qmtian.LoginService</servlet-class>
	</servlet>
	
	<servlet-mapping>
		<servlet-name>loginService</servlet-name>
		<url-pattern>/test</url-pattern>
	</servlet-mapping>
</web-app>