problem description: the pc side takes photos to get the base64 file, wants to upload this file to the local node service, and reads the photo file when querying
problem description: the pc side takes photos to get the base64 file, wants to upload this file to the local node service, and reads the photo file when querying
var formData = new FormData();
var btn = document.getElementById("uploadImg");//
var file = btn.files[0];
formData.append('file',file);//formData
var reader = new FileReader();//
reader.onloadend = function () {
var dataURL = reader.result;
var img = new Image();
img.src = dataURL;
// DOM
// ...
};
reader.readAsDataURL(file); 1. If the photo is obtained by base64, then send it to the server directly with post, and the server will save it
2. Directly assign a value to the src of img when taking it
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