增加 spring cloud gateway 网关的示例

Author: YunaiV

labx-08/labx-08-sc-gateway-demo07-sentinel/src/main/java/cn/iocoder/springcloud/labx08/gatewaydemo/CustomBlockRequestHandler.java

@@ -15,9 +15,9 @@ public class CustomBlockRequestHandler implements BlockRequestHandler {
 
     @Override
     public Mono<ServerResponse> handleRequest(ServerWebExchange exchange, Throwable ex) {
-        return ServerResponse.status(HttpStatus.TOO_MANY_REQUESTS)
-                .contentType(MediaType.TEXT_PLAIN)
-                .bodyValue(DEFAULT_BLOCK_MSG_PREFIX + ex.getClass().getSimpleName());
+        return ServerResponse.status(HttpStatus.TOO_MANY_REQUESTS) // 状态码
+                .contentType(MediaType.TEXT_PLAIN) // 内容类型为 text/plain 纯文本
+                .bodyValue(DEFAULT_BLOCK_MSG_PREFIX + ex.getClass().getSimpleName()); // 错误提示
     }
 
 }

labx-08/labx-08-sc-gateway-demo07-sentinel/src/main/java/cn/iocoder/springcloud/labx08/gatewaydemo/GatewayApplication.java

@@ -7,6 +7,8 @@
 public class GatewayApplication {
 
     public static void main(String[] args) {
+//        System.setProperty(SentinelConfig.APP_TYPE, ConfigConstants.APP_TYPE_SCG_GATEWAY);
+//        System.setProperty(SentinelConfig.APP_TYPE, "1");
         SpringApplication.run(GatewayApplication.class, args);
     }
 

labx-08/labx-08-sc-gateway-demo07-sentinel/src/main/resources/application.yaml

@@ -19,17 +19,17 @@ spring:
       eager: true # 是否饥饿加载。默认为 false 关闭
       transport:
         dashboard: localhost:7070 # 是否饥饿加载。默认为 false 关闭
-      # 数据源的配置项
-      datasource:
-        ds1.file:
-          file: "classpath: sentinel-gw-flow.json"
-          ruleType: gw-flow
-        ds2.file:
-          file: "classpath: sentinel-gw-api-group.json"
-          ruleType: gw-api-group
+#      # 数据源的配置项
+#      datasource:
+#        ds1.file:
+#          file: "classpath: sentinel-gw-flow.json"
+#          ruleType: gw-flow
+#        ds2.file:
+#          file: "classpath: sentinel-gw-api-group.json"
+#          ruleType: gw-api-group
       # Sentinel 对 Spring Cloud Gateway 的专属配置项，对应 SentinelGatewayProperties 类
       scg:
-        order:
+        order: -2147483648 # 过滤器顺序，默认为 -2147483648 最高优先级
         fallback:
           mode: # fallback 模式，目前有三种：response、redirect、空
           # 专属 response 模式