feign 测试通过 & hystrix 测试通过

sc-consumer/src/main/java/com/trgis/sb2sc/Sb2scConsumerApplication.java

@@ -4,12 +4,20 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 import org.springframework.cloud.client.loadbalancer.LoadBalanced;
+import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
+import org.springframework.cloud.netflix.hystrix.EnableHystrix;
+import org.springframework.cloud.openfeign.EnableFeignClients;
 import org.springframework.context.annotation.Bean;
 import org.springframework.web.client.RestTemplate;
 
 @EnableDiscoveryClient
+//@EnableEurekaClient
+@EnableFeignClients
+@EnableCircuitBreaker
+@EnableHystrix
 @SpringBootApplication
 public class Sb2scConsumerApplication {
 

sc-consumer/src/main/java/com/trgis/sb2sc/controller/FeignController.java

@@ -1,25 +1,40 @@
 package com.trgis.sb2sc.controller;
 
+import com.trgis.sb2sc.feign.MFeignClient;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.client.RestTemplate;
+import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 
+import java.util.List;
+
 @RestController
 public class FeignController {
 
     @Autowired
-    private RestTemplate restTemplate;
-
-    @Autowired
-    private LoadBalancerClient loadBalancerClient;
+    private MFeignClient feignClient;
 
     @GetMapping("/feign/{wd}")
     public Mono<String> sayHelloWorld(@PathVariable("wd") String parm) {
-        String res = this.restTemplate.getForObject("http://sc-provider/test/" + parm, String.class);
-        return Mono.just(res);
+        String result = feignClient.sayHelloWorld(parm);
+        return Mono.just(result);
+    }
+
+    @GetMapping("/feign/list")
+    public Flux<Integer> list() {
+        List<Integer> list = feignClient.list();
+        Flux<Integer> userFlux = Flux.fromIterable(list);
+        return userFlux;
+    }
+
+    @GetMapping("/feign/array")
+    public Flux<Integer> array() {
+        Integer[] arrays = feignClient.array();
+        Flux<Integer> userFlux = Flux.fromArray(arrays);
+        return userFlux;
     }
 }

sc-consumer/src/main/java/com/trgis/sb2sc/controller/RibbonController.java

@@ -1,5 +1,6 @@
 package com.trgis.sb2sc.controller;
 
+import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -18,8 +19,13 @@ public class RibbonController {
     private LoadBalancerClient loadBalancerClient;
 
     @GetMapping("/ribbon/{wd}")
+    @HystrixCommand(fallbackMethod="fallbackMethod")
     public Mono<String> sayHelloWorld(@PathVariable("wd") String parm) {
         String res = this.restTemplate.getForObject("http://sc-provider/test/" + parm, String.class);
         return Mono.just(res);
     }
+
+    public Mono<String> fallbackMethod(@PathVariable("wd") String parm) {
+        return Mono.just("fallback");
+    }
 }

sc-consumer/src/main/java/com/trgis/sb2sc/feign/MFeignClient.java

@@ -0,0 +1,21 @@
+package com.trgis.sb2sc.feign;
+
+import com.trgis.sb2sc.feign.config.MFeignConfig;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+
+import java.util.List;
+
+@FeignClient(name = "sc-provider",fallback = MFeignClientFallback.class, configuration = MFeignConfig.class)
+public interface MFeignClient {
+    // 这是被请求微服务的地址，也就是provider的地址
+    @GetMapping(value = "/test/{msg}")
+    String sayHelloWorld(@PathVariable("msg") String msg);
+
+    @GetMapping(value = "/test/list")
+    List<Integer> list();
+
+    @GetMapping(value = "/test/list")
+    Integer[] array();
+}

sc-consumer/src/main/java/com/trgis/sb2sc/feign/MFeignClientFallback.java

@@ -0,0 +1,24 @@
+package com.trgis.sb2sc.feign;
+
+import org.springframework.stereotype.Component;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Component
+public class MFeignClientFallback implements MFeignClient{
+    @Override
+    public String sayHelloWorld(String msg) {
+        return "fallback";
+    }
+
+    @Override
+    public List<Integer> list() {
+        return new ArrayList<>();
+    }
+
+    @Override
+    public Integer[] array() {
+        return new Integer[0];
+    }
+}

sc-consumer/src/main/java/com/trgis/sb2sc/feign/config/MFeignConfig.java

@@ -0,0 +1,13 @@
+package com.trgis.sb2sc.feign.config;
+
+import feign.Logger;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class MFeignConfig {
+    @Bean
+    Logger.Level feignLoggerLevel() {
+        return Logger.Level.FULL;
+    }
+}

sc-provider/src/main/java/com/trgis/sb2sc/controller/IndexController.java

@@ -2,14 +2,32 @@ package com.trgis.sb2sc.controller;
 
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @RestController
+@RequestMapping("test")
 public class IndexController {
 
-    @GetMapping("/test/{msg}")
+    @GetMapping("{msg}")
     public Mono<String> sayHelloWorld(@PathVariable("msg") String msg) {
+        System.out.println("come on " + msg);
         return Mono.just("sc-provider receive : " +msg);
     }
+
+    @GetMapping("list")
+    public Flux<Integer> list() {
+        List<Integer> list = new ArrayList<>();
+        list.add(8);
+        list.add(22);
+        list.add(75);
+        list.add(93);
+        Flux<Integer> userFlux = Flux.fromIterable(list);
+        return userFlux;
+    }
 }