使用条纹将 JSP 文件移动到 WEB-INF 目录时出错

Question

我有以下条纹 ActionBean：

package myapp;

import net.sourceforge.stripes.action.*;

public class WelcomeActionBean extends MyAppActionBean {
    @DefaultHandler
    public Resolution view() {
        return new ForwardResolution("/welcome.jsp");
    }
}

当我在浏览器中加载/myapp/Welcome.action 时，会显示welcome.jsp 的内容。

但是，当我将welcome.jsp 移动到/WEB-INF/jsp/welcome.jsp 并更改ForwardResolution 参数以反映该更改时，即：

return new ForwardResolution("/WEB-INF/jsp/welcome.jsp");

加载 /myapp/Welcome.action 时出现以下错误：

net.sourceforge.stripes.exception.ActionBeanNotFoundException: Could not locate an ActionBean that is bound to the URL [/Welcome.action]. Commons reasons for this include mis-matched URLs and forgetting to implement ActionBean in your class. Registered ActionBeans are: {/controller/DefaultView.action=class net.sourceforge.stripes.controller.DefaultViewActionBean, /myapp/MyApp.action/=class myapp.MyAppActionBean, /myapp/Welcome.action/=class myapp.WelcomeActionBean, /controller/DefaultView.action/=class net.sourceforge.stripes.controller.DefaultViewActionBean, /myapp/MyApp.action=class myapp.MyAppActionBean, /myapp/Welcome.action=class myapp.WelcomeActionBean}
    net.sourceforge.stripes.controller.AnnotatedClassActionResolver.getActionBean(AnnotatedClassActionResolver.java:341)
    net.sourceforge.stripes.controller.NameBasedActionResolver.getActionBean(NameBasedActionResolver.java:264)
    net.sourceforge.stripes.controller.AnnotatedClassActionResolver.getActionBean(AnnotatedClassActionResolver.java:293)
    net.sourceforge.stripes.controller.DispatcherHelper$1.intercept(DispatcherHelper.java:106)
    net.sourceforge.stripes.controller.ExecutionContext.proceed(ExecutionContext.java:158)
    net.sourceforge.stripes.controller.BeforeAfterMethodInterceptor.intercept(BeforeAfterMethodInterceptor.java:113)
    net.sourceforge.stripes.controller.ExecutionContext.proceed(ExecutionContext.java:155)
    net.sourceforge.stripes.controller.ExecutionContext.wrap(ExecutionContext.java:74)
    net.sourceforge.stripes.controller.DispatcherHelper.resolveActionBean(DispatcherHelper.java:102)
    net.sourceforge.stripes.controller.DispatcherServlet.resolveActionBean(DispatcherServlet.java:238)
    net.sourceforge.stripes.controller.DispatcherServlet.service(DispatcherServlet.java:141)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    net.sourceforge.stripes.controller.StripesFilter.doFilter(StripesFilter.java:247)

为了在WEB-INF目录下存放JSP文件，需要进行什么特殊的配置吗？

Answer 1

我的理解如下：你的WelcomeActionBeanin not in a package ([web, www, stripes, action]) 由NameBasedActionResolver（阅读javadoc）自动处理，所以它实际上被映射到/myapp/Welcome.action（如错误消息中所述）。

因此，当您 request 时/Welcome.action，没有任何现有ActionBean绑定到该 URL 并且解析器回退到/welcome.jsp（再次参见 NameBasedActionResolverjavadoc）。当你将你的 JSP 移到 下/WEB-INF/jsp时，你的运气就用完了，一切都失败了。

要解决此问题，请执行以下任一操作：

• 访问“正确”（在当前状态下）URL 绑定即 /myapp/Welcome.action

• 或者，如果您希望 ActionBean/Welcome.action受约定约束，请将其移动到由 处理的包中NameBasedActionResolver，例如action：

  package myapp.action;
  
  import net.sourceforge.stripes.action.*;
  
  public class WelcomeActionBean extends MyAppActionBean {
      @DefaultHandler
      public Resolution view() {
          return new ForwardResolution("/WEB-INF/jsp/welcome.jsp");
      }
  }
  

• 或者@UrlBinding在您的操作中添加一个以显式配置绑定：

  package myapp;
  
  import net.sourceforge.stripes.action.*;
  
  @UrlBinding("/Welcome.action")
  public class WelcomeActionBean extends MyAppActionBean {
      @DefaultHandler
      public Resolution view() {
          return new ForwardResolution("/WEB-INF/jsp/welcome.jsp");
      }
  }