struts2中action中取不到session的值

Question

请问高手，struts2中action中取不到session的值。 

代码如下： 

java代码如下： 

public class LoginAction extends BaseAdminAction { 

getRequest().getSession().setAttribute(SystemUtil.USERINFO, user); 

        

        ActionContext.getContext().getSession().put("dishesPM","dishesPM"); 

        System.out.println("================LoginAction.checkLogin() USERINFO/dishesPM set=============="+getRequest().getSession().getId()); 

        return ajax(Status.success, "登录成功"); 

} 

public class IndexAction extends BaseAdminAction { 

private static final long serialVersionUID = 12L; 

public String index(){ 

  String test = (String)getRequest().getSession().getAttribute("dishesPM"); 

  //System.out.println(test+"===========IndexAction.list()  dishesPM get================="+getRequest().getSession().getId()); 

  test = (String)ActionContext.getContext().getSession().get("dishesPM"); 

  System.out.println(test+"===========IndexAction.list()  dishesPM get================="+getRequest().getSession().getId()); 

  return "index"; 

} 

} 

基类写了几个公共的方法如下： 

public class BaseAdminAction extends ActionSupport {// 获取Request 

// 获取Request 

protected HttpServletRequest getRequest() { 

  return ServletActionContext.getRequest(); 

} 

// 获取Response 

protected HttpServletResponse getResponse() { 

  return ServletActionContext.getResponse(); 

} 

// 获取ServletContext 

protected ServletContext getServletContext() { 

  return ServletActionContext.getServletContext(); 

} 

// 获取Attribute 

protected Object getAttribute(String name) { 

  return ServletActionContext.getRequest().getAttribute(name); 

} 

// 设置Attribute 

protected void setAttribute(String name, Object value) { 

  ServletActionContext.getRequest().setAttribute(name, value); 

} 

// 获取Parameter 

protected String getParameter(String name) { 

  return ServletActionContext.getRequest().getParameter(name); 

} 

// 获取Parameter数组 

protected String[] getParameterValues(String name) { 

  return ServletActionContext.getRequest().getParameterValues(name); 

} 

// 获取Session 

protected Object getSession(String name) { 

  ActionContext actionContext = ActionContext.getContext(); 

  Map<String, Object> session = actionContext.getSession(); 

  return session.get(name); 

} 

// 设置Session 

protected void setSession(String name, Object value) { 

  ActionContext actionContext = ActionContext.getContext(); 

  Map<String, Object> session = actionContext.getSession(); 

  session.put(name, value); 

} 

// 移除Session 

protected void removeSession(String name) { 

  ActionContext actionContext = ActionContext.getContext(); 

  Map<String, Object> session = actionContext.getSession(); 

  session.remove(name); 

} 

} 

struts.xml文件 

<constant name="struts.devMode" value="true" /> 

<constant name="struts.action.extension" value="xhtml"/> <!-- .xhtml为访问扩展名 --> 

<constant name="struts.convention.action.name.separator" value="_" /> 

<constant name="struts.convention.result.path" value="/jsps/" /> 

<constant name="struts.convention.classes.reload" value="false" /> 

<constant name="struts.convention.action.packages" value="com.define.dishes.action" /> 

<constant name="struts.objectFactory" value="spring" /> 

<package name="basePackage" extends="struts-default"> 

  <interceptors> 

   <interceptor-stack name="baseStack"> 

                <interceptor-ref name="exception" /> 

                <interceptor-ref name="alias" /> 

                <interceptor-ref name="servletConfig" /> 

                <interceptor-ref name="prepare" /> 

                <interceptor-ref name="chain" /> 

                <interceptor-ref name="debugging" /> 

                <interceptor-ref name="scopedModelDriven" /> 

                <interceptor-ref name="modelDriven" /> 

                <interceptor-ref name="checkbox" /> 

                <interceptor-ref name="multiselect" /> 

                <interceptor-ref name="staticParams" /> 

                <interceptor-ref name="actionMappingParams" /> 

                <interceptor-ref name="params"> 

     <param name="excludeParams">dojo..*,^struts..*,.*\u0023.*,.*\x5Cu0023.*,.*\x5cu0023.*</param> 

                </interceptor-ref> 

                <interceptor-ref name="conversionError" /> 

                <interceptor-ref name="validation"> 

                    <param name="excludeMethods">input,back,cancel,browse</param> 

                    <param name="validateAnnotatedMethodOnly">true</param> 

                </interceptor-ref> 

                <interceptor-ref name="workflow"> 

                    <param name="excludeMethods">input,back,cancel,browse</param> 

                </interceptor-ref> 

            </interceptor-stack> 

  </interceptors> 

  <default-interceptor-ref name="baseStack" /> 

  <default-action-ref name="errorPage404Action" /> 

  <action name="errorPage404Action"> 

   <result type="redirect">/commons/error_page_404.html</result> 

  </action> 

</package> 

<package name="admin" extends="basePackage" namespace="/admin"> 

  <interceptors> 

   <interceptor name="logInterceptor" class="com.define.dishes.interceptor.LoginedCheckInterceptor" /> 

   <interceptor name="trimInterceptor" class="com.define.dishes.interceptor.TrimInterceptor" /> 

   <interceptor-stack name="adminStack"> 

    <interceptor-ref name="fileUpload"> 

     <param name="allowedTypes">image/jpeg,image/pjpeg,image/gif,image/bmp,image/x-ms-bmp,image/png,image/x-png</param> 

     <param name="maximumSize">2097152</param> 

    </interceptor-ref> 

    <interceptor-ref name="baseStack" /> 

    <interceptor-ref name="logInterceptor" /> 

    <interceptor-ref name="trimInterceptor" /> 

   </interceptor-stack> 

  </interceptors> 

  <default-interceptor-ref name="adminStack" /> 

  <global-results> 

   <result name="main" >/jsps/admin/main.jsp</result> 

   <result name="login" >/jsps/admin/login.jsp</result> 

   <result name="index" >/jsps/admin/index.jsp</result> 

   <result name="top" >/jsps/admin/top.jsp</result> 

   <result name="left" >/jsps/admin/left.jsp</result> 

  </global-results> 

</package> 

以上是主要的代码。 

现在loginaction 转到的main.jsp可以取到session的值，但main.jsp进入到indexAction.action中就取不到session的值。所有的action类都一样，经过页面进来的action都不能取到session的值。

Answer 1

main.jsp 看看