📄 reloadaction.java
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package com.relationinfo.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 com.relationinfo.webapp.listener.StartupListener;
/**
* This class is used to reload the drop-downs initialized in the
* StartupListener.
*
* <p>
* <a href="ReloadAction.java.html"><i>www.relationinfo.com</i></a>
* </p>
*
* @author caoguangxin www.relationinfo.com
*
* @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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