@Log(message = "向{0}用户分配了{1}的角色。")
  @RequiresPermissions("User:assign")
  @RequestMapping(
      value = "/create/userRole",
      method = {RequestMethod.POST})
  public @ResponseBody void assignRole(UserRole userRole) {
    userRoleService.save(userRole);

    User user = userService.get(userRole.getUser().getId());
    Role role = roleService.get(userRole.getRole().getId());
    LogUitl.putArgs(
        LogMessageObject.newWrite().setObjects(new Object[] {user.getUsername(), role.getName()}));
  }
  @Log(message = "撤销了{0}用户的{1}角色。")
  @RequiresPermissions("User:assign")
  @RequestMapping(
      value = "/delete/userRole/{userRoleId}",
      method = {RequestMethod.POST})
  public @ResponseBody void deleteUserRole(@PathVariable Long userRoleId) {
    UserRole userRole = userRoleService.get(userRoleId);
    LogUitl.putArgs(
        LogMessageObject.newWrite()
            .setObjects(
                new Object[] {userRole.getUser().getUsername(), userRole.getRole().getName()}));

    userRoleService.delete(userRoleId);
  }
  @Log(message = "删除了{0}用户。")
  @RequiresPermissions("User:delete")
  @RequestMapping(value = "/delete", method = RequestMethod.POST)
  public @ResponseBody String deleteMany(Long[] ids) {
    String[] usernames = new String[ids.length];
    try {
      for (int i = 0; i < ids.length; i++) {
        User user = userService.get(ids[i]);
        userService.delete(user.getId());

        usernames[i] = user.getUsername();
      }
    } catch (ServiceException e) {
      return AjaxObject.newError(e.getMessage()).setCallbackType("").toString();
    }

    LogUitl.putArgs(
        LogMessageObject.newWrite().setObjects(new Object[] {Arrays.toString(usernames)}));
    return AjaxObject.newOk("删除用户成功!").setCallbackType("").toString();
  }