jsp用el表达式获取后台传来的值，或者获取session中的值

<script type="text/javascript"> ???var usernameC = ${sessionScope.SESSION_USER_PROFILE.accountId}; ???var caseId = "${caseId}"; ???var taskId = "${taskId}"; ???var uuid = "${uuid}";</script>

 ???@GetMapping(value = {URI_FILE_CASE_PANEL_AUDI, URI_FILE_CASE_PANEL_AUDI_HTM}) ???public ModelAndView indexFile(@RequestParam(value = "caseId", required = false) Long caseId, ?????????????????????????????????@RequestParam(value = "taskId", required = false) String taskId, ?????????????????????????????????@RequestParam(value = "uuid", required = false) String uuid) { ???????LOGGER.info("enter file case audit panel,caseId:{},taskId:{}", caseId, taskId); ???????ModelMap map = new ModelMap(); ???????map.put("caseId", caseId); ???????map.put("taskId", taskId); ???????map.put("uuid", uuid); ???????return new ModelAndView(FWD_FILE_CASE_PANEL_FILE_CASE, map); ???}