用go gin server来做文件上传服务

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        之前已经go get安装了gin, 现在来玩下用go gin server作图片上传服务, 代码目录如下:

taoge:~/test_gin$ tree
.
|-- public
|-- template
|   `-- select_file.html
`-- test_gin_server.go

2 directories, 2 files
taoge:~/test_gin$ 

        test_gin_server.go内容:

package main

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

func upload(c *gin.Context) {
    file, header, err := c.Request.FormFile("file") 
    if err != nil {
        c.String(http.StatusBadRequest, fmt.Sprintf("file err : %s", err.Error()))
        return
    }

    filename := header.Filename
    out, err := os.Create("public/" + filename)
    if err != nil {
        log.Fatal(err)
    }
    defer out.Close()

    _, err = io.Copy(out, file)
    if err != nil {
        log.Fatal(err)
    }

    filepath := "http://localhost:8080/file/" + filename
    c.JSON(http.StatusOK, gin.H{"filepath": filepath})
}

func main() {
    router := gin.Default()

    router.LoadHTMLGlob("template/*")
    router.GET("/", func(c *gin.Context) {
        c.HTML(http.StatusOK, "select_file.html", gin.H{})
    })

    router.POST("/upload", upload)
    
    router.StaticFS("/file", http.Dir("public"))
    router.Run(":8080")
}

         select_file.html的内容为:

<html>
<body>
    <form action="http://localhost:8080/upload/" enctype="multipart/form-data" method="POST"> 
        <input type="file" name="file" id="pic" accept="*" />
        <button type="submit">提交</button>
    </form>
</body>
</html>

        go run test_gin_server.go跑起来, 在浏览器上执行:http://localhost:8080/ ,然后就出现了图片上传的页面,于是就可以上传图片了, 玩了一下, OK,服务端对应的public目录中有对应的图片。

       不多说。

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转载自blog.csdn.net/stpeace/article/details/82721770