第一个struts2 demo

step1:

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
    "http://struts.apache.org/dtds/struts-2.1.7.dtd">
<struts>
	<constant name="struts.devMode" value="true"></constant><!--开发者模式-->
	<package name="default" namespace="/" extends="struts-default">
		<action name="hello_struts">
			<result>
				/Hello.jsp
			</result>
		</action>
	</package>
</struts>

step2:

  <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
      <filter-name>struts2</filter-name>
      <url-pattern>/*</url-pattern>
    </filter-mapping>