/**
	 * token增强，客户端模式不增强。
	 *
	 * @return TokenEnhancer
	 */
	@Bean
	public TokenEnhancer tokenEnhancer() {
		return (accessToken, authentication) -> {
			if ("client_credentials".equals(authentication.getOAuth2Request().getGrantType())) {
				return accessToken;
			}

			final Map<String, Object> additionalInfo = new HashMap<>(8);
			PigUser pigUser = (PigUser) authentication.getUserAuthentication().getPrincipal();
			additionalInfo.put("user_id", pigUser.getId());
			additionalInfo.put("username", pigUser.getUsername());
			additionalInfo.put("dept_id", pigUser.getDeptId());
			additionalInfo.put("license", SecurityConstants.PIG_LICENSE);
			((DefaultOAuth2AccessToken) accessToken).setAdditionalInformation(additionalInfo);
			return accessToken;
		};
	}