原生GO开发的博客系统

Go博客实战教程，是一个练手级项目教程，使用原生Go开发，未使用任何框架。

如何使用原生Go开发一个web项目
循序渐进，掌握编程思维和思路
初步具有工程思维，能适应一般的开发工作

1. 搭建项目

package mainimport ("encoding/json""log""net/http"
)type IndexData struct {Title string `json:"title"`Desc string `json:"desc"`
}
func index(w http.ResponseWriter,r *http.Request)  {w.Header().Set("Content-Type","application/json")var indexData IndexDataindexData.Title = "码神之路go博客"indexData.Desc = "现在是入门教程"jsonStr,_ := json.Marshal(indexData)w.Write(jsonStr)
}func main()  {//程序入口，一个项目 只能有一个入口//web程序，http协议 ip portserver := http.Server{Addr: "127.0.0.1:8080",}http.HandleFunc("/",index)if err := server.ListenAndServe();err != nil{log.Println(err)}
}

2. 响应页面

func indexHtml(w http.ResponseWriter,r *http.Request)  {t := template.New("index.html")viewPath, _ := os.Getwd()t,_ = t.ParseFiles(viewPath + "/template/index.html")var indexData IndexDataindexData.Title = "码神之路go博客"indexData.Desc = "现在是入门教程"err := t.Execute(w,indexData)fmt.Println(err)
}func main()  {//程序入口，一个项目 只能有一个入口//web程序，http协议 ip portserver := http.Server{Addr: "127.0.0.1:8080",}http.HandleFunc("/",index)http.HandleFunc("/index.html",indexHtml)if err := server.ListenAndServe();err != nil{log.Println(err)}
}

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>hello mszlu blog!!
{{.Title}}{{.Desc}}
</body>
</html>

3. 首页

3.1 页面解析

func index(w http.ResponseWriter,r *http.Request)  {var indexData IndexDataindexData.Title = "码神之路go博客"indexData.Desc = "现在是入门教程"t := template.New("index.html")//1. 拿到当前的路径path,_ := os.Getwd()//访问博客首页模板的时候，因为有多个模板的嵌套，解析文件的时候，需要将其涉及到的所有模板都进行解析home := path + "/template/home.html"header := path + "/template/layout/header.html"footer := path + "/template/layout/footer.html"personal := path + "/template/layout/personal.html"post := path + "/template/layout/post-list.html"pagination := path + "/template/layout/pagination.html"t,_ = t.ParseFiles(path + "/template/index.html",home,header,footer,personal,post,pagination)//页面上涉及到的所有的数据，必须有定义t.Execute(w,indexData)
}

3.2 首页数据格式定义

config/config.go

package configtype Viewer struct {Title stringDescription  stringLogo  stringNavigation  []stringBilibili stringAvatar stringUserName stringUserDesc string
}
type SystemConfig struct {AppName             stringVersion             float32CurrentDir          stringCdnURL stringQiniuAccessKey stringQiniuSecretKey stringValine boolValineAppid stringValineAppkey stringValineServerURL string
}

models/category.go

package modelstype Category struct {Cid      intName     stringCreateAt stringUpdateAt string
}

models/post.go

package modelsimport ("goblog/config""html/template""time"
)type Post struct {Pid        int    `json:"pid"`                // 文章IDTitle      string `json:"title"`            // 文章IDSlug       string `json:"slug"`              // 自定也页面 pathContent    string `json:"content"`        // 文章的htmlMarkdown   string `json:"markdown"`      // 文章的MarkdownCategoryId int    `json:"categoryId"` //分类idUserId     int    `json:"userId"`         //用户idViewCount  int    `json:"viewCount"`   //查看次数Type       int    `json:"type"`              //文章类型 0 普通，1 自定义文章CreateAt   time.Time `json:"createAt"`     // 创建时间UpdateAt   time.Time `json:"updateAt"`     // 更新时间
}type PostMore struct {Pid          int    `json:"pid"`                    // 文章IDTitle        string `json:"title"`                // 文章IDSlug         string `json:"slug"`                  // 自定也页面 pathContent      template.HTML `json:"content"`            // 文章的htmlCategoryId   int    `json:"categoryId"`     // 文章的MarkdownCategoryName string `json:"categoryName"` // 分类名UserId       int    `json:"userId"`             // 用户idUserName     string `json:"userName"`         // 用户名ViewCount    int    `json:"viewCount"`       // 查看次数Type         int    `json:"type"`                  // 文章类型 0 普通，1 自定义文章CreateAt     string `json:"createAt"`UpdateAt     string `json:"updateAt"`
}type PostReq struct {Pid        int    `json:"pid"`Title      string `json:"title"`Slug       string `json:"slug"`Content    string `json:"content"`Markdown   string `json:"markdown"`CategoryId int    `json:"categoryId"`UserId     int    `json:"userId"`Type       int    `json:"type"`
}type SearchResp struct {Pid   int    `orm:"pid" json:"pid"` // 文章IDTitle string `orm:"title" json:"title"`
}type PostRes struct {config.Viewerconfig.SystemConfigArticle PostMore
}

models/home.go

package modelstype HomeData struct {config.ViewerCategorys []CategoryPosts []PostMoreTotal intPage intPages []intPageEnd bool
}

4. 配置文件读取

config.toml:

[viewer]Title = "码神之路Go语言博客"Description = "码神之路Go语言博客"Logo = "/resource/images/logo.png"Navigation = ["首页","/", "GO语言","/golang", "归档","/pigeonhole", "关于","/about"]Bilibili = "https://space.bilibili.com/473844125"Zhihu = "https://www.zhihu.com/people/ma-shen-zhi-lu"Avatar = "https://gimg2.baidu.com/image_search/src=http%3A%2F%2Finews.gtimg.com%2Fnewsapp_bt%2F0%2F13147603927%2F1000.jpg&refer=http%3A%2F%2Finews.gtimg.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=jpeg?sec=1647242040&t=c6108010ed46b4acebe18955acdd2d24"UserName = "码神之路"UserDesc = "长得非常帅的程序员"
[system]CdnURL = "https://static.mszlu.com/goblog/es6/md-assets"QiniuAccessKey = "替换自己的"QiniuSecretKey = "替换自己的"Valine = trueValineAppid = "替换自己的"ValineAppkey = "替换自己的"ValineServerURL = "替换自己的"

package configimport ("github.com/BurntSushi/toml""os"
)type TomlConfig struct {Viewer ViewerSystem SystemConfig
}
type Viewer struct {Title stringDescription  stringLogo  stringNavigation  []stringBilibili stringAvatar stringUserName stringUserDesc string
}
type SystemConfig struct {AppName             stringVersion             float32CurrentDir          stringCdnURL stringQiniuAccessKey stringQiniuSecretKey stringValine boolValineAppid stringValineAppkey stringValineServerURL string
}
var Cfg *TomlConfigfunc init()  {Cfg = new(TomlConfig)var err errorCfg.System.CurrentDir, err = os.Getwd()if err != nil {panic(err)}Cfg.System.AppName = "mszlu-go-blog"Cfg.System.Version = 1.0_,err = toml.DecodeFile("config/config.toml",&Cfg)if err != nil {panic(err)}
}

5. 假数据-显示首页内容

package mainimport ("html/template""log""ms-go-blog/config""ms-go-blog/models""net/http""time"
)type IndexData struct {Title string `json:"title"`Desc string `json:"desc"`
}func IsODD(num int) bool  {return num%2 == 0
}
func GetNextName(strs []string,index int) string{return strs[index+1]
}
func Date(layout string)  string{return time.Now().Format(layout)
}
func index(w http.ResponseWriter,r *http.Request)  {t := template.New("index.html")//1. 拿到当前的路径path := config.Cfg.System.CurrentDir//访问博客首页模板的时候，因为有多个模板的嵌套，解析文件的时候，需要将其涉及到的所有模板都进行解析home := path + "/template/home.html"header := path + "/template/layout/header.html"footer := path + "/template/layout/footer.html"personal := path + "/template/layout/personal.html"post := path + "/template/layout/post-list.html"pagination := path + "/template/layout/pagination.html"t.Funcs(template.FuncMap{"isODD":IsODD,"getNextName":GetNextName,"date":Date})t,err := t.ParseFiles(path + "/template/index.html",home,header,footer,personal,post,pagination)if err != nil {log.Println(err)}//页面上涉及到的所有的数据，必须有定义var categorys = []models.Category{{Cid: 1,Name: "go",},}var posts = []models.PostMore{{Pid: 1,Title: "go博客",Content: "内容",UserName: "码神",ViewCount: 123,CreateAt: "2022-02-20",CategoryId:1,CategoryName: "go",Type:0,},}var hr = &models.HomeResponse{config.Cfg.Viewer,categorys,posts,1,1,[]int{1},true,}t.Execute(w,hr)
}func main()  {//程序入口，一个项目 只能有一个入口//web程序，http协议 ip portserver := http.Server{Addr: "127.0.0.1:8080",}http.HandleFunc("/",index)http.Handle("/resource/",http.StripPrefix("/resource/",http.FileServer(http.Dir("public/resource/"))))if err := server.ListenAndServe();err != nil{log.Println(err)}
}