Golang如何实现简单的HTTP服务器_Golang HTTP服务器开发项目实战

package main

import (
    "fmt"
    "net/http"
)

func helloHandler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hello, 你好！这是你的第一个Go HTTP服务。")
}

func main() {
    http.HandleFunc("/", helloHandler)
    fmt.Println("服务器启动中，访问 http://localhost:8080")
    http.ListenAndServe(":8080", nil)
}

http.HandleFunc("/about", func(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "关于页面：这是一个Go开发的Web服务示例。")
})

http.HandleFunc("/api/health", func(w http.ResponseWriter, r *http.Request) {
    w.Header().Set("Content-Type", "application/json")
    fmt.Fprintf(w, `{"status": "ok", "version": "1.0"}`)
})

http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("./static"))))

type Server struct {
    addr string
}

func (s *Server) routes() {
    http.HandleFunc("/", s.homePage)
    http.HandleFunc("/about", s.aboutPage)
    http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("./static"))))
}

func (s *Server) homePage(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "欢迎来到主页！")
}

func (s *Server) aboutPage(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "这是关于页面。")
}

func (s *Server) Start() error {
    s.routes()
    fmt.Printf("服务器启动在 %s\n", s.addr)
    return http.ListenAndServe(s.addr, nil)
}

func main() {
    server := &Server{addr: ":8080"}
    server.Start()
}

func loggingMiddleware(next http.HandlerFunc) http.HandlerFunc {
    return func(w http.ResponseWriter, r *http.Request) {
        fmt.Printf("[%s] %s %s\n", r.RemoteAddr, r.Method, r.URL.Path)
        next(w, r)
    }
}

http.HandleFunc("/", loggingMiddleware(helloHandler))