Optimize Sentinel RestTemplate url resource

spring-cloud-alibaba-docs/src/main/asciidoc-zh/sentinel.adoc

@@ -185,7 +185,7 @@ Sentinel RestTemplate 限流的资源规则提供两种粒度：
 
 * `schema://host:port`：协议、主机和端口
 
-NOTE: 以 `https://www.taobao.com/test` 这个 url 为例。对应的资源名有两种粒度，分别是 `https://www.taobao.com:80` 以及 `https://www.taobao.com:80/test`
+NOTE: 以 `https://www.taobao.com/test` 这个 url 为例。对应的资源名有两种粒度，分别是 `https://www.taobao.com` 以及 `https://www.taobao.com/test`
 
 ### 动态数据源支持
 

spring-cloud-alibaba-docs/src/main/asciidoc/sentinel.adoc

@@ -187,7 +187,7 @@ Sentinel RestTemplate provides two granularities for resource rate limiting:
 
 * `schema://host:port`： Protocol, host and port
 
-NOTE: Take `https://www.taobao.com/test` as an example. The corresponding resource names have two levels of granularities, `https://www.taobao.com:80` and `https://www.taobao.com:80/test`.
+NOTE: Take `https://www.taobao.com/test` as an example. The corresponding resource names have two levels of granularities, `https://www.taobao.com` and `https://www.taobao.com/test`.
 
 ### Dynamic Data Source Support
 

spring-cloud-alibaba-examples/sentinel-example/sentinel-core-example/src/main/java/org/springframework/cloud/alibaba/cloud/examples/ExceptionUtil.java

@@ -1,5 +1,9 @@
 package org.springframework.cloud.alibaba.cloud.examples;
 
+import org.springframework.cloud.alibaba.sentinel.rest.SentinelClientHttpResponse;
+import org.springframework.http.HttpRequest;
+import org.springframework.http.client.ClientHttpRequestExecution;
+
 import com.alibaba.csp.sentinel.slots.block.BlockException;
 
 /**
@@ -7,8 +11,10 @@ import com.alibaba.csp.sentinel.slots.block.BlockException;
  */
 public class ExceptionUtil {
 
-	public static void handleException(BlockException ex) {
+	public static SentinelClientHttpResponse handleException(HttpRequest request,
+			byte[] body, ClientHttpRequestExecution execution, BlockException ex) {
 		System.out.println("Oops: " + ex.getClass().getCanonicalName());
+		return new SentinelClientHttpResponse("custom block info");
 	}
 
 }

spring-cloud-alibaba-examples/sentinel-example/sentinel-core-example/src/main/resources/flowrule.json

@@ -16,9 +16,9 @@
     "strategy": 0
   },
   {
-    "resource": "abc",
+    "resource": "http://www.taobao.com",
     "controlBehavior": 0,
-    "count": 1,
+    "count": 0,
     "grade": 1,
     "limitApp": "default",
     "strategy": 0

spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelProtectInterceptor.java

@@ -58,8 +58,8 @@ public class SentinelProtectInterceptor implements ClientHttpRequestInterceptor
 	public ClientHttpResponse intercept(HttpRequest request, byte[] body,
 			ClientHttpRequestExecution execution) throws IOException {
 		URI uri = request.getURI();
-		String hostResource = uri.getScheme() + "://" + uri.getHost() + ":"
+		String hostResource = uri.getScheme() + "://" + uri.getHost()
-				+ (uri.getPort() == -1 ? 80 : uri.getPort());
+				+ (uri.getPort() == -1 ? "" : ":" + uri.getPort());
 		String hostWithPathResource = hostResource + uri.getPath();
 		Entry hostEntry = null, hostWithPathEntry = null;
 		ClientHttpResponse response;