LeaveController.java

LeaveController.java

	/**
	 * 启动请假流程
	 * @param leave	
	 */
	@RequestMapping(value = "start", method = RequestMethod.POST)
	public String startWorkflow(Leave leave, RedirectAttributes redirectAttributes, HttpSession session) {
		try {
			User user = UserUtil.getUserFromSession(session);
			leave.setUserId(user.getId());
			Map<String, Object> variables = new HashMap<String, Object>();
			ProcessInstance processInstance = workflowService.startWorkflow(leave, variables);
			redirectAttributes.addFlashAttribute("message", "流程已启动，流程ID：" + processInstance.getId());
		} catch (ActivitiException e) {
			if (e.getMessage().indexOf("no processes deployed with key") != -1) {
				logger.warn("没有部署流程!", e);
				redirectAttributes.addFlashAttribute("error", "没有部署流程，请在[工作流]->[流程管理]页面点击<重新部署流程>");
			} else {
				logger.error("启动投保流程失败：", e);
				redirectAttributes.addFlashAttribute("error", "系统内部错误！");
			}
		} catch (Exception e) {
			logger.error("启动投保流程失败：", e);
			redirectAttributes.addFlashAttribute("error", "系统内部错误！");
		}
		return "redirect:/oa/leave/apply";
	}

RedirectAttributes 用作重定向属性