如何让kubernetes服务在JAVA中处理多个端口？

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-app
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
      - name: my-app-container
        image: my-app-image
        ports:
        - name: http
          containerPort: 8080
        - name: grpc
          containerPort: 50051
        livenessProbe:
          httpGet:
            path: /health
            port: http
          initialDelaySeconds: 10
          periodSeconds: 5
        readinessProbe:
          httpGet:
            path: /ready
            port: http
          initialDelaySeconds: 5
          periodSeconds: 3

---

apiVersion: v1
kind: Service
metadata:
  name: my-app-service
spec:
  selector:
    app: my-app
  ports:
  - name: http
    protocol: TCP
    port: 80
    targetPort: http
  - name: grpc
    protocol: TCP
    port: 50051
    targetPort: grpc