修正配置controller的消息重定向后无法传至前台的问题，使用model的模式改为redirectAttributes模式

src/main/java/com/nis/web/controller/configuration/proxy/HttpRedirectPolicyController.java

@@ -137,14 +137,14 @@ public class HttpRedirectPolicyController extends BaseController{
 	@RequestMapping(value = {"saveOrUpdate"})
 	@RequiresPermissions(value={"control:httpRedirect:config"})
 	public String saveOrUpdate(Model model,HttpServletRequest request,HttpServletResponse response,
-			@ModelAttribute("cfg")CfgIndexInfo cfg){
+			@ModelAttribute("cfg")CfgIndexInfo cfg,RedirectAttributes redirectAttributes){
 		try{
 			httpRedirectCfgService.saveHttpCfg(cfg);
-			addMessage(model,"save_success");
+			addMessage(redirectAttributes,"save_success");
 		}catch(Exception e){
 			logger.error("信息保存失败",e);
 			e.printStackTrace();
-			addMessage(model,"save_failed");
+			addMessage(redirectAttributes,"save_failed");
 		}
 		
 		return "redirect:" + adminPath +"/proxy/control/httpRedirect/list?functionId="+cfg.getFunctionId();