chickenlj commented on code in PR #638:
URL: https://github.com/apache/dubbo-go-samples/pull/638#discussion_r1379511011
##########
health_check/README_zn.md:
##########
@@ -0,0 +1,99 @@
+# 健康检查
+
+## 背景
+
+Dubbo-go 内置了基于Triple协议的健康检查服务，帮助用户检测服务健康状态。
+
+## 使用方法
+
+- Dubbo-go框架在通过instance启动后会自动向框架中注册健康检查服务，提供基于triple服务的健康检查服务，无需在配置文件中额外配置。
+-
triple健康检查服务可以通过发起http请求检查框架中服务的状态，也可以通过客户端调用该健康检查服务，调用的服务名为“grpc.health.v1.Health”，接口为check。
+
+## 1、通过客户端调用健康检查服务
+
+启动dubbo-go-samples/health_check/go-server中的instance服务，通过下方客户端即可查看“greet.GreetService”的状态。
+
+```go
+package main
+
+import (
+ "context"
+ "dubbo.apache.org/dubbo-go/v3/client"
+ _ "dubbo.apache.org/dubbo-go/v3/imports"
+ health
"dubbo.apache.org/dubbo-go/v3/protocol/triple/health/triple_health"
+ "github.com/dubbogo/gost/log/logger"
+)
+
+func main() {
+ cli, err := client.NewClient(
+ client.WithURL("tri://127.0.0.1:20000"),
+ )
+ if err != nil {
+ panic(err)
+ }
+ svc, err := health.NewHealth(cli)
+ if err != nil {
+ panic(err)
+ }
+
+ check, err := svc.Check(context.Background(),
&health.HealthCheckRequest{Service: "grpc.health.v1.Health"})
+ if err != nil {
+ logger.Error(err)
+ } else {
+ logger.Info("grpc.health.v1.Health's health", check.String())
+ }
+ check, err = svc.Check(context.Background(),
&health.HealthCheckRequest{Service: "greet.GreetService"})
+ if err != nil {
+ logger.Error(err)
+ } else {
+ logger.Info("greet.GreetService's health", check.String())
+ }
+
+ watch, err := svc.Watch(context.Background(),
&health.HealthCheckRequest{Service: "grpc.health.v1.Health"})
+ if err != nil {
+ logger.Error(err)
+ } else {
+ if watch.Recv() {
+ logger.Info("grpc.health.v1.Health's health",
watch.Msg().String())
+ }
+ }
+ watch, err = svc.Watch(context.Background(),
&health.HealthCheckRequest{Service: "greet.GreetService"})
+ if err != nil {
+ logger.Error(err)
+ } else {
+ if watch.Recv() {
+ logger.Info("greet.GreetService's health",
watch.Msg().String())
+ }
+ }
+}
+```
+
+启动后会有以下输出
+
+```sh
+[grpc.health.v1.Health's health status:SERVING]
+[greet.GreetService's health status:SERVING]
+[grpc.health.v1.Health's health status:SERVING]
+[greet.GreetService's health status:SERVING]
+```
+
+## 2.通过发起http请求调用健康检查服务
+
+启动dubbo-go-samples/health_check/go-server中的instance服务，发起下方http请求即可查看“greet.GreetService”的状态
+
+```http
+POST /health.HealthService/Check
Review Comment:
The relation between this service and 'grpc.health.v1.Health'?
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