Go语言教程之边写边学：如何处理HTTP服务器健康检查

package main

import (
	"fmt"
	"net/http"
)

func main() {
	http.HandleFunc("/health", healthHandler)
	http.ListenAndServe(":8080", nil)
}

func healthHandler(w http.ResponseWriter, r *http.Request) {
	// 检查服务器状态if serverIsHealthy() {
		w.WriteHeader(http.StatusOK)
		fmt.Fprint(w, "Server is healthy")
	} else {
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprint(w, "Server is not healthy")
	}
}

func serverIsHealthy() bool {
	// 检查服务器状态具体业务逻辑return true
}

package main

import (
	"net/http"

	"github.com/heptiolabs/healthcheck"
)

func main() {
	// Create a new health check handler
	h := healthcheck.NewHandler()

	// Register health checks for any dependencies
	h.AddLivenessCheck("database", healthcheck.DatabasePingCheck("mysql", "user:password@tcp(db:3306)/mydatabase"))

	// Create an HTTP server and add the health check handler as a handler
	http.HandleFunc("/health", h.Handler)
	http.ListenAndServe(":8080", nil)
}