1.Gin

Go 语言中，Gin 是一个流行的 Web 框架，它提供了一种简单、快速和高效的方式来构建 Web 应用。Gin 使用类似于 Martini 的 API，但是性能更好（归功于它基于 radix 树的路由），并且拥有更好的性能基准。

2.Gin使用

2.1 启动

 package main

import (
    "GoGin/routers"
    "github.com/gin-gonic/gin"
)

func main() {

    r := gin.Default()
    r.LoadHTMLGlob("templates/*")

    routers.LoadBlog(r)
    routers.LoadShop(r)
    routers.Test(r)
    r.Run() // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")
}

2.2路由与处理请求

package routers

import (
    "fmt"
    "github.com/gin-gonic/gin"
    "log"
    "net/http"
)

//get请求，获取url参数
func doGet(c *gin.Context) {
    aid := c.Query("aid")
    fmt.Println(aid)
    data := map[string]interface{}{"name": "lijun", "age": 18}
    c.JSON(http.StatusOK, gin.H{
        "data": data,
    })
}

//post请求，获取表单数据
func doPost(c *gin.Context) {
    username := c.PostForm("username")
    password := c.PostForm("password")
    c.JSON(http.StatusOK, gin.H{
        "message":  "test_post",
        "username": username,
        "password": password,
        "code":     200,
    })
}

// Test is a test function.
// Test test接口与处理映射
func Test(e *gin.Engine) {
    e.GET("/index", index)
    e.GET("/ping", doGet)
    e.POST("/test_post", doPost)
    e.POST("/uploads", uploads)
}

// index handles the index route.
//后端渲染
func index(c *gin.Context) {
    c.HTML(http.StatusOK, "index.tmpl", gin.H{
        "title": "hello",
    })
}

// uploads handles the file uploads.
//上传多个文件
func uploads(c *gin.Context) {
    // Multipart form
    form, _ := c.MultipartForm()
    files := form.File["upload[]"]

    for _, file := range files {
        log.Println(file.Filename)
        dst := "./upload/" + file.Filename
        // 上传文件至指定目录
        err := c.SaveUploadedFile(file, dst)
        if err != nil {
            c.String(400, "failed!")
            return
        }
    }
    c.String(http.StatusOK, fmt.Sprintf("%d files uploaded!", len(files)))
}