Golang 如何开发一个简易博客系统_Golang 博客项目搭建与路由设计详解

package main

import (
    "fmt"
    "net/http"
)

func main() {
    fmt.Println("服务器启动在 :8080")
    http.ListenAndServe(":8080", nil)
}

http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "<h1>欢迎来到我的博客</h1>")
})

http.HandleFunc("/posts", func(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "<ul><li>第一篇文章</li><li>第二篇文章</li></ul>")
})

func setupRoutes() {
    http.HandleFunc("/", homeHandler)
    http.HandleFunc("/posts", listPostsHandler)
    http.HandleFunc("/posts/", viewPostHandler) // 注意斜杠，匹配子路径
}

func viewPostHandler(w http.ResponseWriter, r *http.Request) {
    path := r.URL.Path
    id := strings.TrimPrefix(path, "/posts/")
    fmt.Fprintf(w, "查看文章 ID: %s", id)
}

type Post struct {
    ID   int
    Title string
    Body string
}

var posts []Post
var nextID = 1

func init() {
    posts = append(posts, Post{ID: 1, Title: "初识 Go", Body: "这是第一篇博客..."})
}

func listPostsHandler(w http.ResponseWriter, r *http.Request) {
    w.Header().Set("Content-Type", "application/json")
    json.NewEncoder(w).Encode(posts)
}

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

<h1>{{.Title}}</h1>
<p>共有 {{len .Posts}} 篇文章</p>

tmpl, _ := template.ParseFiles("templates/index.html")
tmpl.Execute(w, map[string]interface{}{
    "Title": "我的博客",
    "Posts": posts,
})