gin 文件上传

单文件上传

package main
import (
    "fmt"
    "net/http"
    "os"
    "time"
    "github.com/gin-gonic/gin"
)
// 解决跨域问题
func Cors() gin.HandlerFunc {
    return func(c *gin.Context) {
        method := c.Request.Method
        //fmt.Println(method)
        c.Header("Access-Control-Allow-Origin", "*")
        c.Header("Access-Control-Allow-Headers", "Content-Type,AccessToken,X-CSRF-Token, Authorization, Token, x-requested-with")
        c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, PATCH, DELETE")
        c.Header("Access-Control-Allow-Credentials", "true")
        c.Header("Access-Control-Expose-Headers", "Content-Type,Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers")
        // 放行所有OPTIONS方法，因为有的模板是要请求两次的
        if method == "OPTIONS" {
            c.AbortWithStatus(http.StatusNoContent)
        }
        // 处理请求
        c.Next()
    }
}
func main() {
    r := gin.Default()
    r.Use(Cors())
    r.POST("/upload", func(c *gin.Context) {
        file, _ := c.FormFile("file")
        dir_path := "./runtime/"
        file_path := fmt.Sprintf("%s %d %s", dir_path, (time.Now()).Unix(), file.Filename)
        os.Mkdir("./runtime", os.ModePerm)  // 创建文件夹
        c.SaveUploadedFile(file, file_path) // 保存上传文件到指定路径
        c.JSON(200, gin.H{
            "msg": "upload succeed",
        })
    })
    r.Run(":8080") // Run("里面不指定端口号默认为8080")
}

使用 CURL调试

#!/usr/bin/env bash
__curl_update() {
    echo "$(date)" >/tmp/go-testfile.txt
    curl http://localhost:8080/upload \
        -X POST \
        -H "Content-Type: multipart/form-data" \
        -F "file=@/tmp/go-testfile.txt"
}
__curl_update

结果