gin实战（一）-gin实战（七）-《GO开发知识笔记》

2025-11-04 01:25:41 编程来源：ZONE.CI 全球网 0 阅读模式

package main
import (
    "gindemo10/models"
    "gindemo10/routers"
    "html/template"
    "github.com/gin-gonic/gin"
)
func main() {
    // 创建一个默认的路由引擎
    r := gin.Default()
    //自定义模板函数  注意要把这个函数放在加载模板前
    r.SetFuncMap(template.FuncMap{
        "UnixToTime": models.UnixToTime,
    })
    //加载模板 放在配置路由前面
    r.LoadHTMLGlob("templates/**/*")
    //配置静态web目录   第一个参数表示路由, 第二个参数表示映射的目录
    r.Static("/static", "./static")
    routers.AdminRoutersInit(r)
    routers.ApiRoutersInit(r)
    routers.DefaultRoutersInit(r)
    r.Run()
}

package admin
import (
    "net/http"
    "github.com/gin-gonic/gin"
)
type ArticleController struct {
    BaseController
}
func (con ArticleController) Index(c *gin.Context) {
    // c.String(http.StatusOK, "文章列表--")
    con.success(c)
}
func (con ArticleController) Add(c *gin.Context) {
    c.String(http.StatusOK, "-add--文章-")
}
func (con ArticleController) Edit(c *gin.Context) {
    c.String(http.StatusOK, "-Edit---文章---")
}

package admin
import "github.com/gin-gonic/gin"
type BaseController struct{}
func (con BaseController) success(c *gin.Context) {
    c.String(200, "成功")
}
func (con BaseController) error(c *gin.Context) {
    c.String(200, "失败")
}

package admin
import (
    "fmt"
    "github.com/gin-gonic/gin"
)
type IndexController struct {
}
func (con IndexController) Index(c *gin.Context) {
    username, _ := c.Get("username")
    fmt.Println(username)
    //类型断言
    v, ok := username.(string)
    if ok {
        c.String(200, "用户列表--"+v)
    } else {
        c.String(200, "用户列表--获取用户失败")
    }
}

package admin
import (
    "net/http"
    "path"
    "github.com/gin-gonic/gin"
)
type UserController struct {
    BaseController
}
func (con UserController) Index(c *gin.Context) {
    c.String(200, "用户列表--")
    // con.success(c)
}
func (con UserController) Add(c *gin.Context) {
    c.HTML(http.StatusOK, "admin/useradd.html", gin.H{})
}
func (con UserController) DoUpload(c *gin.Context) {
    username := c.PostForm("username")
    file, err := c.FormFile("face")
    // file.Filename 获取文件名称  aaa.jpg   ./static/upload/aaa.jpg
    dst := path.Join("./static/upload", file.Filename)
    if err == nil {
        c.SaveUploadedFile(file, dst)
    }
    // c.String(200, "执行上传")
    c.JSON(http.StatusOK, gin.H{
        "success":  true,
        "username": username,
        "dst":      dst,
    })
}
func (con UserController) Edit(c *gin.Context) {
    c.HTML(http.StatusOK, "admin/useredit.html", gin.H{})
}
func (con UserController) DoEdit(c *gin.Context) {
    username := c.PostForm("username")
    face1, err1 := c.FormFile("face1")
    dst1 := path.Join("./static/upload", face1.Filename)
    if err1 == nil {
        c.SaveUploadedFile(face1, dst1)
    }
    face2, err2 := c.FormFile("face2")
    dst2 := path.Join("./static/upload", face2.Filename)
    if err2 == nil {
        c.SaveUploadedFile(face2, dst2)
    }
    // c.String(200, "执行上传")
    c.JSON(http.StatusOK, gin.H{
        "success":  true,
        "username": username,
        "dst1":     dst1,
        "dst2":     dst2,
    })
}

package api
import "github.com/gin-gonic/gin"
type ApiController struct{}
func (con ApiController) Index(c *gin.Context) {
    c.String(200, "我是一个api接口")
}
func (con ApiController) Userlist(c *gin.Context) {
    c.String(200, "我是一个api接口-Userlist")
}
func (con ApiController) Plist(c *gin.Context) {
    c.String(200, "我是一个api接口-Plist")
}

package itying
import (
    "fmt"
    "gindemo10/models"
    "net/http"
    "github.com/gin-gonic/gin"
)
type DefaultController struct{}
func (con DefaultController) Index(c *gin.Context) {
    fmt.Println(models.UnixToTime(1629788564))
    c.HTML(http.StatusOK, "default/index.html", gin.H{
        "msg": "我是一个msg",
        "t":   1629788418,
    })
}
func (con DefaultController) News(c *gin.Context) {
    c.String(200, "News")
}

package middlewares
import (
    "fmt"
    "time"
    "github.com/gin-gonic/gin"
)
func InitMiddleware(c *gin.Context) {
    //判断用户是否登录
    fmt.Println(time.Now())
    fmt.Println(c.Request.URL)
    c.Set("username", "张三")
    //定义一个goroutine统计日志  当在中间件或 handler 中启动新的 goroutine 时，不能使用原始的上下文（c *gin.Context）， 必须使用其只读副本（c.Copy()）
    cCp := c.Copy()
    go func() {
        time.Sleep(2 * time.Second)
        fmt.Println("Done! in path " + cCp.Request.URL.Path)
    }()
}

package models
import (
    "time"
)
//时间戳转换成日期
func UnixToTime(timestamp int) string {
    t := time.Unix(int64(timestamp), 0)
    return t.Format("2006-01-02 15:04:05")
}
//日期转换成时间戳 2020-05-02 15:04:05
func DateToUnix(str string) int64 {
    template := "2006-01-02 15:04:05"
    t, err := time.ParseInLocation(template, str, time.Local)
    if err != nil {
        return 0
    }
    return t.Unix()
}
//获取时间戳
func GetUnix() int64 {
    return time.Now().Unix()
}
//获取当前的日期
func GetDate() string {
    template := "2006-01-02 15:04:05"
    return time.Now().Format(template)
}
//获取年月日
func GetDay() string {
    template := "20060102"
    return time.Now().Format(template)
}

package routers
import (
    "gindemo10/controllers/admin"
    "gindemo10/middlewares"
    "github.com/gin-gonic/gin"
)
func AdminRoutersInit(r *gin.Engine) {
    //middlewares.InitMiddleware中间件
    adminRouters := r.Group("/admin", middlewares.InitMiddleware)
    {
        adminRouters.GET("/", admin.IndexController{}.Index)
        adminRouters.GET("/user", admin.UserController{}.Index)
        adminRouters.GET("/user/add", admin.UserController{}.Add)
        adminRouters.POST("/user/doUpload", admin.UserController{}.DoUpload)
        adminRouters.GET("/user/edit", admin.UserController{}.Edit)
        adminRouters.POST("/user/doEdit", admin.UserController{}.DoEdit)
        adminRouters.GET("/article", admin.ArticleController{}.Index)
        adminRouters.GET("/article/add", admin.ArticleController{}.Add)
        adminRouters.GET("/article/edit", admin.ArticleController{}.Edit)
    }
}

package routers
import (
    "gindemo10/controllers/api"
    "github.com/gin-gonic/gin"
)
func ApiRoutersInit(r *gin.Engine) {
    apiRouters := r.Group("/api")
    {
        apiRouters.GET("/", api.ApiController{}.Index)
        apiRouters.GET("/userlist", api.ApiController{}.Userlist)
        apiRouters.GET("/plist", api.ApiController{}.Plist)
    }
}

package routers
import (
    "gindemo10/controllers/itying"
    "github.com/gin-gonic/gin"
)
func DefaultRoutersInit(r *gin.Engine) {
    defaultRouters := r.Group("/")
    {
        defaultRouters.GET("/", itying.DefaultController{}.Index)
        defaultRouters.GET("/news", itying.DefaultController{}.News)
    }
}