@Override
	public ClientHttpResponse intercept(HttpRequest request, byte[] body,
			ClientHttpRequestExecution execution) throws IOException {
		URI uri = request.getURI();
		String hostResource = request.getMethod().toString() + ":" + uri.getScheme()
				+ "://" + uri.getHost()
				+ (uri.getPort() == -1 ? "" : ":" + uri.getPort());
		String hostWithPathResource = hostResource + uri.getPath();
		boolean entryWithPath = true;
		if (hostResource.equals(hostWithPathResource)) {
			entryWithPath = false;
		}
		Method urlCleanerMethod = BlockClassRegistry.lookupUrlCleaner(
				sentinelRestTemplate.urlCleanerClass(),
				sentinelRestTemplate.urlCleaner());
		if (urlCleanerMethod != null) {
			hostWithPathResource = (String) methodInvoke(urlCleanerMethod,
					hostWithPathResource);
		}

		Entry hostEntry = null;
		Entry hostWithPathEntry = null;
		ClientHttpResponse response = null;
		try {
			hostEntry = SphU.entry(hostResource, EntryType.OUT);
			if (entryWithPath) {
				hostWithPathEntry = SphU.entry(hostWithPathResource, EntryType.OUT);
			}
			response = execution.execute(request, body);
			if (this.restTemplate.getErrorHandler().hasError(response)) {
				Tracer.trace(
						new IllegalStateException("RestTemplate ErrorHandler has error"));
			}
			return response;
		}
		catch (Throwable e) {
			if (BlockException.isBlockException(e)) {
				return handleBlockException(request, body, execution, (BlockException) e);
			}
			else {
				Tracer.traceEntry(e, hostEntry);
				if (e instanceof IOException ioException) {
					throw ioException;
				}
				else if (e instanceof RuntimeException runtimeException) {
					throw runtimeException;
				}
				else {
					throw new IOException(e);
				}
			}
		}
		finally {
			if (hostWithPathEntry != null) {
				hostWithPathEntry.exit();
			}
			if (hostEntry != null) {
				hostEntry.exit();
			}
		}
	}
Interceptor using by SentinelRestTemplate.

@author <a href="mailto:fangjian0423@gmail.com">Jim</a>
spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-sentinel/src/main/java/com/alibaba/cloud/sentinel/custom/SentinelProtectInterceptor.java