📄 reloadcontroller.java

📁 基于Maven的质量保证自动化环境配置和演示程序

💻 JAVA

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package com.cib.webapp.controller;import java.io.PrintWriter;import java.util.ArrayList;import java.util.List;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import com.cib.webapp.listener.StartupListener;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.Controller;/** * This class is used to reload the drop-downs initialized in the * StartupListener. * * <p> * <a href="ReloadController.java.html"><i>View Source</i></a> * </p> * * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a> */public class ReloadController implements Controller {    private transient final Log log = LogFactory.getLog(UserController.class);    public ModelAndView handleRequest(HttpServletRequest request,                                      HttpServletResponse response)    throws Exception {        if (log.isDebugEnabled()) {            log.debug("Entering 'execute' method");        }        StartupListener.setupContext(request.getSession().getServletContext());        String referer = request.getHeader("Referer");        if (referer != null) {            log.info("reload complete, reloading user back to: " + referer);            List<String> messages = new ArrayList<String>();            messages.add("Reloading options completed successfully.");            request.getSession().setAttribute("messages", 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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