//查看合同列表@RequestMapping(value="/goContractList",method=RequestMethod.GET)public String ?goContractList(HttpServletRequest request,HttpServletResponse response,ModelMap model) throws Exception{? ? ?System.out.println(request.getSession().getId());? ? //其余代碼略 ? ??}//查看合同明細@RequestMapping(value="/viewContract",method=RequestMethod.GET)public ModelAndView ?viewContract(HttpServletRequest request,HttpServletResponse response) throws Exception{? ? //這里的sessionId與第一次的sessionId不一樣，且之前session中存儲的數據都不存在了? ? System.out.println(request.getSession().getId());? ? //其余代碼略 ?}