reloadaction.java

来自「this is for appfuse1.8 source using stru」· Java 代码 · 共 73 行

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package org.appfuse.webapp.action;import java.io.PrintWriter;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;import org.apache.struts.action.ActionMessage;import org.apache.struts.action.ActionMessages;import org.appfuse.webapp.listener.StartupListener;/** * This class is used to reload the drop-downs initialized in the * StartupListener. * * <p> * <a href="ReloadAction.java.html"><i>View Source</i></a> * </p> * * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a> * * @struts.action path="/reload" validate="false" roles="admin" */public final class ReloadAction extends BaseAction {    public ActionForward execute(ActionMapping mapping, ActionForm form,                                 HttpServletRequest request,                                 HttpServletResponse response)    throws Exception {        if (log.isDebugEnabled()) {            log.debug("Entering 'execute' method");        }        StartupListener.setupContext(getServlet().getServletContext());        String referer = request.getHeader("Referer");        if (referer != null) {            log.debug("reload complete, reloading user back to: " + referer);                         ActionMessages messages = new ActionMessages();            messages.add(ActionMessages.GLOBAL_MESSAGE,                         new ActionMessage("reload.succeeded"));            saveMessages(request.getSession(), messages);                        response.sendRedirect(response.encodeRedirectURL(referer));            return null;        } else {            response.setContentType("text/html");            PrintWriter out = response.getWriter();            out.println("<html>");            out.println("<head>");            out.println("<title>Context Reloaded</title>");            out.println("</head>");            out.println("<body bgcolor=\"white\">");            out.println("<script type=\"text/javascript\">");            out.println("alert('Context Reload Succeeded! Click OK to continue.');");            out.println("history.back();");            out.println("</script>");            out.println("</body>");            out.println("</html>");        }        return null;    }}

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