最后我们来看一下struts.xml里面是怎么配置的呢，

  struts.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts><package name="jsondefault" namespace="/" extends="json-default"><action name="grtallDept" class="org.web.EmpAction" method="getallDept"><result type="json"><param name="root">deptJson</param></result></action><action name="getEmp" class="org.web.EmpAction" method="getEmp"><result type="json"><param name="root">empJson</param></result></action></package>
</struts>