Example code for Golang to implement image upload function

 <div class="col-5 f-l text text-r">Background image(must):</div>
  <div class="img-box">
    <label>
      <span class="copy-btn Hui-iconfont"></span>
      <input type="file" class="up-file">
    </label>
  </div>
  <div class="img-file col-offset-5">
  </div>

//Read the picturefunction loadImg(){
    //Get the file    var file = $(".up-file")[0].files[0];
    //Create an object to read the file    var reader = new FileReader();
    //Create file to read related variables    var imgFile;
    //Set events for file reading successfully    =function(e) {
        var e=||e;
        imgFile = ;
        (imgFile);
        $(".img-file").css({'background':"url("+imgFile+")"});
        isimg();
    };
 
    //Officially read the file    (file);
 
}

//Is there any image verificationfunction isimg(){
    var img= $(".img-file").css('background-image');
 
    if(("data:image")==-1&&(".jpg")==-1){
        $(".mess").html("Please add background image").css("opacity",1);
        return false;
    }
    else{
        $(".mess").css("opacity",0).html("");
        return true;
    }
}

function addData(){
    var url=$(".img-file").css("background-image");
    var data1=[{"name":"url","value":url}];
    $.ajax({
        url:"/commmethod/method/uploadimg",
        data:data1,
        type:"post",
        ContentType:"application/json",
        success:function(resp){
         ......
        }
    });
}

func (this *CommMethodController) UploadImg() {
    fileurl := ("url")
    DataArr := (fileurl, ",")
  //Remove the packaging and get the base64 encoding    imgBase64 := DataArr[1][:len(DataArr[1])-2]
  //base64 transcoding    imgs, err := (imgBase64)
    if err != nil {
        ("base64 decode error:", err)
    }
    timenow := ().Unix()
    file, err := ("./static/img/"+(timenow, 10)+".jpg", os.O_CREATE|os.O_WRONLY, 0644)
    if err != nil {
        ("create file error:", err)
    }
    w := (file) //Create a new Writer object    _, err3 := (string(imgs))
    if err3 != nil {
        ("write error:", err3)
    }
    ()
    defer ()
    imgname := (timenow, 10) + ".jpg"
    t := struct {
        ImageName string `json:"imagename"`
    }{imgname}
    ["json"] = t
    ()
}
 
/**
 *This code is mainly used to delete the original picture when editing pictures
  * Determine whether the file exists. Return true. If it does not exist, return false.
  */
func checkFileIsExist(filename string) bool {
    var exist = true
    if _, err := (filename); (err) {
        exist = false
    }
    return exist
}