<div> ???<form action="/home/Uplod" method="post" enctype="multipart/form-data"> ???????<input type="file" name="file" id="image" multiple="multiple" onchange="fun(this)" /> ???????<input type="button" value="submit" id="submit" /> ???</form></div><script type="text/javascript"> ???????var AllowImgFileSize = 2100000; //限制上传大小 ???????var tempbase = []; ??????//bas64数组 ???????$(function () { ???????????$("#submit").click(function () { ???????????????console.log($("#image")[0].files.length) ???????????????if ($("#image")[0].files.length < 1) { ???????????????????alert("请最少选择一个图片") ???????????????????return; ???????????????} ???????????????for (var i = 0; i < $("#image")[0].files.length; i++) { ???????????????????if ($("#image")[0].files[i].size > AllowImgFileSize) { ???????????????????????alert("上传失败,请上传不大于2M的图片!"); ???????????????????????return; ???????????????????} ???????????????} ???????????????console.log(tempbase); ???????????????console.log(tempbase[0]); ???????????????????????????}) ???????}) ???????function fun(obj) { ???????????var files = obj.files; ??????????????tempbase = []; ??????????????// ????????????var readFileAsync = file => new Promise(resolve => {// ???????????????var reader = new FileReader();// ???????????????reader.onload = evt => resolve(evt.target.result);// ???????????????reader.readAsDataURL(file);// ????????????}) ???????????function readFileAsync(file) { ???????????????????return new Promise(function (resolve) { ???????????????????????????var reader = new FileReader(); ???????????????????????????reader.onload = function (evt) { ???????????????????????????????????return resolve(evt.target.result); ???????????????????????????}; ???????????????????????????reader.readAsDataURL(file); ???????????????????}); ???????????}; ?????????????for (let j = 0; j < files.length; j++) { ???????????????readFileAsync(files[j]).then(function(res){ ???????????????????tempbase.push(res); ???????????????}); ?????????????}; ???????} ???????????????????</script>
js多图上传转码64
原文地址:https://www.cnblogs.com/MJ-MY/p/9004086.html