01-基于原生golang实现一个简单blog-项目搭建-模板简单使用

本文链接：https://blog.youkuaiyun.com/weixin_43683432/article/details/139629944

第一步当然是go mod init youremail.com
创建文件
目录结构
在这里插入图片描述

package main

import (
	"encoding/json"
	"log"
	"net/http"
	"os"
	"text/template"
)

type IndexData struct {
	Title string `json:"title"` // TODO 将Title转为title
	Desc  string `json:"desc"`
}

type IndexHtmlData struct {
	Title string `json:"title"` // TODO 将Title转为title
	Desc  string `json:"desc"`
	Name  string `json:"name"` // TODO
	Age   int    `json:"age"`  // TODO
}

// TODO 处理函数
func index(w http.ResponseWriter, r *http.Request) {
	w.Write([]byte("hello,world!"))
}

func home(w http.ResponseWriter, r *http.Request) {
	// TODO 返回json的数据
	w.Header().Set("Content-Type", "application/json")
	w.Write([]byte(`{"code":200,"msg":"success"}`))
}

func info(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	var indexData IndexData
	indexData.Title = "首页"
	indexData.Desc = "这是首页描述信息"
	jsonStr, _ := json.Marshal(indexData)
	w.Write(jsonStr)
}

// 获取页面html
func indexHtml(w http.ResponseWriter, r *http.Request) {
	var indexHtmlData IndexHtmlData
	indexHtmlData.Title = "首页"
	indexHtmlData.Desc = "这是首页描述信息"
	indexHtmlData.Name = "张三"
	indexHtmlData.Age = 18
	// 实现访问页面
	t := template.New("index.html")
	// 1.拿到当前路径
	path, _ := os.Getwd()
	t.ParseFiles(path + "/template/index.html")
	t.Execute(w, indexHtmlData)
}

func main() {
	// 1.启动服务
	server := http.Server{
		Addr: "localhost:8080",
	}

	//3.处理服务请求
	http.HandleFunc("/", index)
	http.HandleFunc("/home", home)
	http.HandleFunc("/info", info)
	http.HandleFunc("/index.html", indexHtml)

	// 2.监听
	if err := server.ListenAndServe(); err != nil {
		log.Println(err)
	}
}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    hello golang blog
    <div>
        {{.Title}} - {{.Desc}} - {{.Name}} - {{.Age}}
    </div>
</body>
</html>