增加网关内做版本控制并路由的示例

discovery-springcloud-example-gateway/src/main/java/com/nepxion/discovery/plugin/example/gateway/DiscoveryApplicationGateway.java

@@ -29,6 +29,11 @@ public class DiscoveryApplicationGateway {
     }
 
     /*@Bean
+    public MyGatewayFilter myGatewayFilter() {
+        return new MyGatewayFilter();
+    }*/
+
+    /*@Bean
     public RouteLocator routeLocator(RouteLocatorBuilder builder) {
         return builder
                 .routes()

discovery-springcloud-example-gateway/src/main/java/com/nepxion/discovery/plugin/example/gateway/impl/MyGatewayFilter.java

+package com.nepxion.discovery.plugin.example.gateway.impl;
+
+/**
+ * <p>Title: Nepxion Discovery</p>
+ * <p>Description: Nepxion Discovery</p>
+ * <p>Copyright: Copyright (c) 2017-2050</p>
+ * <p>Company: Nepxion</p>
+ * @author Haojun Ren
+ * @version 1.0
+ */
+
+import reactor.core.publisher.Mono;
+
+import org.springframework.cloud.gateway.filter.GatewayFilterChain;
+import org.springframework.cloud.gateway.filter.GlobalFilter;
+import org.springframework.core.Ordered;
+import org.springframework.http.server.reactive.ServerHttpRequest;
+import org.springframework.web.server.ServerWebExchange;
+
+public class MyGatewayFilter implements GlobalFilter, Ordered {
+    @Override
+    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
+        ServerHttpRequest newRequest = exchange.getRequest().mutate().header("version", "{\"discovery-springcloud-example-a\":\"1.0\", \"discovery-springcloud-example-b\":\"1.0\", \"discovery-springcloud-example-c\":\"1.0;1.2\"}").build();
+        ServerWebExchange newExchange = exchange.mutate().request(newRequest).build();
+
+        return chain.filter(newExchange);
+    }
+
+    @Override
+    public int getOrder() {
+        return -200;
+    }
+}
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discovery-springcloud-example-zuul/src/main/java/com/nepxion/discovery/plugin/example/zuul/DiscoveryApplicationZuul.java

@@ -29,4 +29,9 @@ public class DiscoveryApplicationZuul {
     public MyDiscoveryEnabledStrategy myDiscoveryEnabledStrategy() {
         return new MyDiscoveryEnabledStrategy();
     }
+
+    /*@Bean
+    public MyZuulFilter myZuulFilter() {
+        return new MyZuulFilter();
+    }*/
 }
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discovery-springcloud-example-zuul/src/main/java/com/nepxion/discovery/plugin/example/zuul/impl/MyZuulFilter.java

+package com.nepxion.discovery.plugin.example.zuul.impl;
+
+/**
+ * <p>Title: Nepxion Discovery</p>
+ * <p>Description: Nepxion Discovery</p>
+ * <p>Copyright: Copyright (c) 2017-2050</p>
+ * <p>Company: Nepxion</p>
+ * @author Haojun Ren
+ * @version 1.0
+ */
+
+import com.netflix.zuul.ZuulFilter;
+import com.netflix.zuul.context.RequestContext;
+
+public class MyZuulFilter extends ZuulFilter {
+    @Override
+    public String filterType() {
+        return "pre";
+    }
+
+    @Override
+    public int filterOrder() {
+        return 0;
+    }
+
+    @Override
+    public boolean shouldFilter() {
+        return true;
+    }
+
+    @Override
+    public Object run() {
+        RequestContext context = RequestContext.getCurrentContext();
+        context.addZuulRequestHeader("version", "{\"discovery-springcloud-example-a\":\"1.0\", \"discovery-springcloud-example-b\":\"1.0\", \"discovery-springcloud-example-c\":\"1.0;1.2\"}");
+
+        return null;
+    }
+}
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