<%-- Created by IntelliJ IDEA. User: Old Zhang Date: 2018/12/27 Time: 11:17 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> <td> <form id="form1" enctype="multipart/form-data" method="post"> <input type="file" name="filePic" multiple="multiple" id="doc" style="300px;" onChange="javascript:setImagePreviews();" accept="image/*" /> </form> <input type="button" value="上传" onclick="uploadPic();" style="margin-right: 3px;margin-top: 4px;float:right;line-height: 16px;" /> </td> <td width="100px" height="100px" > <div id="dd" style=" 100px;"></div> </td> </body> <script src="./js/jquery-2.1.4.js"></script> <script type="text/javascript"> //下面用于多图片上传预览功能 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' ><img id='img" + i + "' /> </div>"; var imgObjPreview = document.getElementById("img"+i); if (docObj.files && docObj.files[i]) { //火狐下，直接设img属性 imgObjPreview.style.display = 'block'; imgObjPreview.style.width = '100px'; imgObjPreview.style.height = '100px'; //imgObjPreview.src = docObj.files[0].getAsDataURL(); //火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式 imgObjPreview.src = window.URL.createObjectURL(docObj.files[i]); } else { //IE下，使用滤镜 docObj.select(); var imgSrc = document.selection.createRange().text; alert(imgSrc) var localImagId = document.getElementById("img" + i); //必须设置初始大小 localImagId.style.width = "100px"; localImagId.style.height = "100px"; //图片异常的捕捉，防止用户修改后缀来伪造图片 try { localImagId.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)"; localImagId.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgSrc; } catch (e) { alert("您上传的图片格式不正确，请重新选择!"); return false; } imgObjPreview.style.display = 'none'; document.selection.empty(); } } return true; } function uploadPic(){ var docObj = document.getElementById("doc"); var fileList = docObj.files; var formData = new FormData(); for (var i = 0; i < fileList.length; i++) { formData.append("filePic",fileList[i]); } $.ajax({ url : 'uploadfarmfindPics?kind=thumbnail', type : 'POST', data : formData, // 告诉jQuery不要去处理发送的数据 processData : false, // 告诉jQuery不要去设置Content-Type请求头 contentType : false, beforeSend:function(){ console.log("正在进行，请稍候"); }, success : function(responseStr) { if(responseStr.status===0){ console.log("成功"+responseStr); }else{ console.log("失败"); } }, error : function(responseStr) { console.log("error"); } }); } </script> </html>