js多圖片上傳--一次性上傳多張
阿新 • • 發佈：2018-12-26
適用各種版本的多圖片上傳，如果ie上測試有問題那就可能是ie設定有問題
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head lang="en"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> <style> *{margin: 0px;padding: 0px;} .a-upload{ float: left; padding: 4px 10px; height: 20px; line-height: 20px; position: relative; cursor: pointer; color: white; background: #00b7ee; border: 1px solid #ddd; border-radius: 4px; overflow: hidden; display: inline-block; *display: inline; margin: 10px; *zoom: 1; text-decoration: none; } .a-upload input { position: absolute; font-size: 100px; right: 0; top: 0; opacity: 0; filter: alpha(opacity=0); cursor: pointer } .a-upload:hover { color: white; background: #00b7ee; border-color: #ccc; text-decoration: none } </style> </head> <body> <div style="margin :0px auto; width:990px;float: left;"> <a href="javascript:;" class="a-upload"> <input type="file" name="file" id="doc" multiple="multiple" onchange="javascript:setImagePreviews();" accept="image/*" />點選這裡上傳檔案 </a> <div id="dd" style="width:990px;float: left;"></div> </div> </body> <script type="text/javascript"> //下面用於多圖片上傳預覽功能 function setImagePreviews(avalue) { var docObj = document.getElementById("doc"); var dd = document.getElementById("dd"); dd.innerHTML = ""; var fileList = docObj.files; for (var i = 0; i < fileList.length; i++) { dd.innerHTML += "<div style='float: left;margin-top: 10px;' > <img id='img" + i + "' /> </div>"; var imgObjPreview = document.getElementById("img"+i); if (docObj.files && docObj.files[i]) { //火狐下，直接設img屬性 // imgObjPreview.style.display = 'block'; imgObjPreview.style.width = '160px'; imgObjPreview.style.height = '130px'; imgObjPreview.style.margin = '5px'; imgObjPreview.style.borderRadius = '5px'; //imgObjPreview.src = docObj.files[0].getAsDataURL(); //火狐7以上版本不能用上面的getAsDataURL()方式獲取，需要一下方式 imgObjPreview.src = window.URL.createObjectURL(docObj.files[i]); } else { //IE下，使用濾鏡 docObj.select(); var imgSrc = document.selection.createRange().text; var localImagId = document.getElementById("img" + i); //必須設定初始大小 localImagId.style.width = "160px"; localImagId.style.height = "130px"; imgObjPreview.style.margin = '5px'; imgObjPreview.style.borderRadius = '5px'; //圖片異常的捕捉，防止使用者修改後綴來偽造圖片 try { localImagId.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)"; localImagId.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgSrc; } catch (e) { alert("您上傳的圖片格式不正確，請重新選擇!"); return false; } imgObjPreview.style.display = 'none'; document.selection.empty(); } } return true; } </script> </html>
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