Use Ajax to upload Base64 format images during H5 development-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

Use Ajax to upload Base64 format images during H5 development

php中世界最好的语言

Mar 31, 2018 pm 04:20 PM

ajax base64 html5

This time I will bring you the precautions on using Ajax to upload Base64 format images when developing H5. The following is a practical case. Let’s take a look.

Without further ado, let’s just look at the code

1. Upload components

 <p class="imgbox">
   <img class="goodsimg" src="../../assets/addimg.png">
   <input id="file" type="file" class="fileupload" accept="image/*" multiple capture="camera" @change="viewimg()"/>
 </p>

Copy after login

2. Display the added pictures

viewimg($event) {
   //获取当前的input标签
   var currentObj = event.currentTarget; 
   //找到要预览的图片img标签，亦可动态生成
   var img = currentObj.parentNode.children[0]; 
   setImagePreview(currentObj, img);
   function setImagePreview(docObj, imgObjPreview) {
     if (docObj.files && docObj.files[0]) {
        imgObjPreview.style.display = 'block';
        imgObjPreview.src = window.URL.createObjectURL(docObj.files[0]);
    }
  }
}

Copy after login

3. Get the image and upload it to the server

//单张图片上传
var inputs = $("input.fileupload");
for (var i = 0; i < inputs.length; i++) {
  //图片转base64上传
  var file = inputs[i].files;
  if (file[0]) {
    var reader = new FileReader();
    reader.readAsDataURL(file[0]);
    reader.onload = function(e) {
   var event = this;
   console.log(event.result);
      $.ajax({
        type: 'POST',
        url: 'http://10.145.0.05/goods/addGoodsBase64',
        dataType: "json",
        data: {
          "base64": event.result,
        },
        success: function(data) {
          console.log(data);
        }
      });
    }
  }
}

Copy after login

Okay, that’s it. The rest will be handled by the back-end students.

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!