25'ten fazla konu seçemezsiniz
Konular bir harf veya rakamla başlamalı, kısa çizgiler ('-') içerebilir ve en fazla 35 karakter uzunluğunda olabilir.
143 satır
4.0 KiB
143 satır
4.0 KiB
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title></title>
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</head>
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<style type="text/css">
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img:not([src]) {
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display: none;
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}
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.file {
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position: relative;/*绝对定位!*/
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display: inline-block;/*设置为行内元素*/
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background: #D0EEFF;
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border: 1px solid #99D3F5;
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border-radius: 4px;
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padding: 4px 12px;
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overflow: hidden;
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color: #1E88C7;
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text-decoration: none;
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text-indent: 0;
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line-height: 20px;
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}
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.file input {
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position: absolute;/*相对定位*/
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right: 0;
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top: 0;
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opacity: 0;/*将上传组件设置为透明的*/
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font-size: 100px;
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}
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.file:hover {
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background: #AADDFF;
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border-color: #78C3F3;
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color: #004974;
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text-decoration: none;
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}
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</style>
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<body>
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<form action="http://106.75.224.103:8000/uploadfiles/" enctype="multipart/form-data" method="post" target="frameName">
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<a href="javascript:;" class="file">选择图像
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<input name="files" type="file" id="uploadImg" onchange="xmTanUploadImg(this)" >
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</a>
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<a href="javascript:;" class="file">上传图像
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<input type="submit">
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</a>
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<a href="javascript:void()" download="picture.jpg" id="Download"class = "file">转换下载</a>
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</form>
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<p hidden>
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<iframe src="" frameborder="0" name="frameName" display:none></iframe>
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<p>
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<table><tr>
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<td> <img src="" id="selectImg" alt = "" width="500">
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</td>
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<td> <img src="" id="transformed" alt = ""width="500" >
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</td>
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</tr></table>
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<p hidden>
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<a href="javascript:void()" download="picture.jpg" id="xmTanDownload">点此下载</a>
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</p>
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</body>
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<script type="text/javascript">
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function getBase64(imgUrl) {
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window.URL = window.URL || window.webkitURL;
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var xhr = new XMLHttpRequest();
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xhr.open("get", imgUrl, true);
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xhr.responseType = "blob";
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xhr.onload = function () {
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if (this.status == 200) {
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var blob = this.response;
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console.log("blob", blob)
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let oFileReader = new FileReader();
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oFileReader.onloadend = function (e) {
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let base64 = e.target.result;
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var trans_img = document.getElementById("transformed");
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trans_img.src = e.target.result;
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console.log( base64)
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var Download = document.getElementById("Download");
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Download.setAttribute("href",base64); //给a标签设置href
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};
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oFileReader.readAsDataURL(blob);
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}
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}
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xhr.send();
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}
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var origin_url = "";
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function xmTanUploadImg(obj) {
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var file = obj.files[0];
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var reader = new FileReader();
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reader.readAsDataURL(file);
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reader.onload = function (e) { //成功读取文件
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var img = document.getElementById("selectImg");
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img.src = e.target.result; //或 img.src = this.result / e.target == this
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//实现点击下载图片功能
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var xmTanDownload = document.getElementById("xmTanDownload");
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xmTanDownload.setAttribute("href", e.target.result); //给a标签设置href
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getBase64("http://106.75.224.103:8000/download/"+file.name);
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};
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}
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var pullfiles=function(){
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// 获取到input元素
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var fileInput = document.querySelector("#myfiles");
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var files = fileInput.files;
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// 获取到所选文件数量
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var fl=files.length;
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var i=0;
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while ( i < fl) {
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var file = files[i];
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alert(file.name);
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i++;
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}
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}
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</script>
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</html>
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