update sentinel examples

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-example/scripts/feign-defaultmethod-error.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+n=1
+while [ $n -le 10 ]
+do
+    echo `curl -s http://localhost:18083/divide-feign2?a=1`
+    let n++
+done

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-example/src/main/java/com/alibaba/cloud/examples/ConsumerApplication.java

@@ -49,6 +49,10 @@ public class ConsumerApplication {
 		@RequestMapping(value = "/divide", method = RequestMethod.GET)
 		String divide(@RequestParam("a") Integer a, @RequestParam("b") Integer b);
 
+		default String divide(Integer a) {
+		    return divide(a, 1);
+        }
+
 		@RequestMapping(value = "/notFound", method = RequestMethod.GET)
 		String notFound();
 	}

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-example/src/main/java/com/alibaba/cloud/examples/TestController.java

@@ -75,6 +75,11 @@ public class TestController {
 		return echoService.divide(a, b);
 	}
 
+    @RequestMapping(value = "/divide-feign2", method = RequestMethod.GET)
+    public String divide(@RequestParam Integer a) {
+        return echoService.divide(a);
+    }
+
 	@RequestMapping(value = "/echo-feign/{str}", method = RequestMethod.GET)
 	public String feign(@PathVariable String str) {
 		return echoService.echo(str);

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-example/src/main/resources/flowrule.json

@@ -6,5 +6,13 @@
     "grade": 1,
     "limitApp": "default",
     "strategy": 0
+  },
+  {
+    "resource": "GET:http://service-provider/divide",
+    "controlBehavior": 0,
+    "count": 0,
+    "grade": 1,
+    "limitApp": "default",
+    "strategy": 0
   }
 ]