golangWEB框架gin学习之获取post参数

原文地址:http://www.niu12.com/article/41

package main

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

func postParams(c *gin.Context)  {
   // 表单发送 name=card, job=phper
   name := c.PostForm("name")
   job := c.PostForm("job")
   c.JSON(http.StatusOK, gin.H{
      "method": c.Request.Method,
      "name": name,
      "job": job,
   })
   // c.PostFormArray()、c.PostFormMap()、c.DefaultPostForm()的用法作用同GET相同
}

// 单文件上传
func postFile(c *gin.Context)  {
   file,err := c.FormFile("picture")
   if err != nil {
      panic(err)
   }
   // map[
   //        Content-Disposition:
   //           [form-data; name="picture"; filename="20170713121902724.gif"]
   //           Content-Type:[image/gif]
   // ]
   fmt.Println(file.Header)
   // 298866
   fmt.Println(file.Size)
   // name:20170713121902724.gif
   c.String(http.StatusOK, "name:" + file.Filename)
}

func postMultipleFile(c *gin.Context)  {
   form, err := c.MultipartForm()
   if err != nil {
      panic(err)
   }
   files := form.File["picture[]"]
   // [0xc0421a80a0 0xc0421a80f0]
   fmt.Println(files)
   // 20170713121902724.gif
   // 1_1536740500_x0IW0YfFJG.jpg
   for _, file := range files{
      fmt.Println(file.Filename)
   }
}

func main() {
   router := gin.Default()
   router.POST("/post", postParams)

   //获取文件
   // 默认限制大小为32M
   // 通过router.MaxMultipartMemory = 8 << 20 8M设置

   // 单文件上传
   router.POST("/upload", postFile)

   // 多文件上传
   router.POST("/uploadMultiple", postMultipleFile)
   router.Run(":8888")
}