删除公司时，若公司下面有部门、角色、用户，则不允许删除，并显示提示信息

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Controller

/**

   * <p>
   * 删除某个公司
   * </p>
   *
   * @author chenmin
   * @create 2014-6-10下午1:32:29
   * @desc delCorporation
   * @param resourceNo
   * @param request
   * @return
   * @throws SystemException
   */
   @RequestMapping("/delCorporation.do")
   public @ResponseBody
   String delCorporation(@RequestParam("resourceNo") String resourceNo,
           HttpServletRequest request) throws SystemException {
       try {
           //判断待删除的公司下是否有角色、用户、部门
           List<Department> depts = departmentService.queryDepartmentByResourceNo(resourceNo);
           List<Role> roles = roleService.queryRoleByResourceNo(resourceNo);
           List<User> users = userService.queryUserByResourceNo(resourceNo);
           if(!depts.isEmpty()){//如果公司下有部门，就提示先删除该公司下的部门
               return "hasDept";
           }
           if(!roles.isEmpty()){
               return "hasRole";
           }
           if(!users.isEmpty()){
               return "hasUser";
           }
           corporationService.removeCorporationByResourceNo(resourceNo,request);
           LOGGER.debug(" deleting Corporation is successful !");
           return "success";
       } catch (Exception e) {
           LOGGER.error(" deleting Corporation is error !" + e);
           throw new SystemException(ErrorCode.ERROR_9003,"删除公司出现异常！", e);
       }

}

js：

    //提交删除请求
function delCorp(){
   var resourceNo = fnGetSelectedRowData(oTable).resourceNo;
   jConfirm("你确定要删除公司吗?","系统提示",function(ok){
       if(ok){
           $.post(Root+"/model/corp/delCorporation.do",{"resourceNo":resourceNo},function(result){
               if(result=='success'){
                   oTable.fnDraw();
               }else if(result=='hasUser'){
                   jAlert("请先删除该公司下的用户！","系统提示");
               }else if(result=='hasRole'){
                   jAlert("请先删除该公司下的角色！","系统提示");
               }else if(result=='hasDept'){
                   jAlert("请先删除该公司下的部门！","系统提示");
               }else{
                   jAlert(result);
               }
           });
       }
   });
}

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