Support HTTP/JSON to dubbo (#340)

test/ingress/conformance/tests/httproute-http2rpc.yaml

@@ -0,0 +1,70 @@
+# Copyright (c) 2022 Alibaba Group Holding Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+apiVersion: networking.higress.io/v1
+kind: Http2Rpc
+metadata:
+  name: httproute-http2rpc-demo
+  namespace: higress-system
+spec:
+  dubbo: 
+    service: "com.dubbo.demo.api.DemoService"
+    version: "1.0.0"
+    methods: 
+    - serviceMethod: "sayHello"
+      headersAttach: "*"
+      httpMethods: 
+      - "GET"
+      - “POST”
+      httpPath: "/sayhello"
+      params:
+      - paramKey: "name"
+        paramSource: "QUERY"
+        paramType: "java.lang.String"
+---
+apiVersion: networking.higress.io/v1
+kind: McpBridge
+metadata:
+  name: default
+  namespace: higress-system
+spec:
+  registries:
+  - domain: nacos-standlone-rc3-service
+    nacosGroups:
+    - DEFAULT_GROUP
+    name: nacos-service-resource
+    port: 8848
+    type: nacos
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    higress.io/destination: providers:com.dubbo.demo.api.DemoService:1.0.0:.DEFAULT-GROUP.public.nacos
+    higress.io/rpc-destination-name: httproute-http2rpc-demo
+  name: httproute-http2rpc-demo-ingress
+  namespace: higress-system
+spec:
+  ingressClassName: higress
+  rules:
+  - host: "foo.com"
+    http:
+      paths:
+      - pathType: Prefix
+        path: /
+        backend:
+          resource:
+            apiGroup: networking.higress.io
+            kind: McpBridge
+            name: default