package?com.zsq.action;
import?javax.servlet.http.HttpServletRequest;
import?com.opensymphony.xwork2.ActionSupport;
public?class?HelloWorldAction?extends?ActionSupport?{
private?HttpServletRequest?request;
public?String?add()?{
request.setAttribute("path",?"update");
return?"add";
}
public?String?update()?{
return?"update";
}
@Override
public?String?execute()?throws?Exception?{
//?TODO?Auto-generated?method?stub
System.out.println("執(zhí)行action");
return?SUCCESS;
}
}<?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="defult"?namespace="/"??extends="struts-default">
???
???<default-action-ref?name="index"></default-action-ref>
???<action?name="index">
???????<result>/error.jsp</result>
???</action>
???
???<action?name="*_*"?method="{2}"?class="com.zsq.action.{1}Action">
????????<result>/result.jsp</result>
????????<result?name="add">
????????
????????<param?name="location">/${#request.path}.jsp</param>
????????
????????</result>
????????<result?name="update">/{2}.jsp</result>
????????<result?name="error">/error.jsp</result>
???</action>
???
??????<action?name="LoginAction"?method="login"?class="com.zsq.action.LoginAction">
????????<result>/success.jsp</result>
????????<result?name="input">/login.jsp</result>
???</action>
???</package>
???</struts>
2016-07-02
package?com.zsq.action; ? import?javax.servlet.http.HttpServletRequest; ? import?com.opensymphony.xwork2.ActionSupport; ? public?class?HelloWorldAction?extends?ActionSupport?{ ????private?HttpServletRequest?request; ? ????public?String?add()?{ ????????request.setAttribute("path",?"update"); ????????return?"add"; ????} ? ????public?String?update()?{ ????????return?"update"; ????} ? ????@Override ????public?String?execute()?throws?Exception?{ ????????//?TODO?Auto-generated?method?stub ????????System.out.println("執(zhí)行action"); ????????return?SUCCESS; ????} }你這里的request要初始化，你試試，我估計(jì)你是報(bào)了空指針異常的。
private HttpServletRequest request=ServletActionContext.getRequest();
2016-08-06
但是怎么初始化啊，老師也沒說
2016-08-06
我也是報(bào)了空指針異常，原來要初始化啊！
2016-06-04
<action?name="*_*"?method="{2}" lass="com.zsq.action.{1}Action">
????????<result>/result.jsp</result>
????????<result?name="add">
這段代碼錯(cuò)啦！