代码如下
<!DOCTYPE html> <html lang="zh-cn"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <title>多图片上传</title> <style> * { margin: 0; padding: 0; } /*图片上传*/ html, body { width: 100%; height: 100%; } .container { width: 100%; height: 100%; overflow: auto; clear: both; } .z_photo { width: 5rem; height: 5rem; padding: 0.3rem; overflow: auto; clear: both; margin: 1rem auto; border: 1px solid #555; } .z_photo img { width: 1rem; height: 1rem; } .z_addImg { float: left; margin-right: 0.2rem; } .z_file { width: 1rem; height: 1rem; background: url(z_add.png) no-repeat; background-size: 100% 100%; float: left; margin-right: 0.2rem; } .z_file input::-webkit-file-upload-button { width: 1rem; height: 1rem; border: none; position: absolute; outline: 0; opacity: 0; } .z_file input#file { display: block; width: auto; border: 0; vertical-align: middle; } /*遮罩层*/ .z_mask { width: 100%; height: 100%; background: rgba(0, 0, 0, .5); position: fixed; top: 0; left: 0; z-index: 999; display: none; } .z_alert { width: 3rem; height: 2rem; border-radius: .2rem; background: #fff; font-size: .24rem; text-align: center; position: absolute; left: 50%; top: 50%; margin-left: -1.5rem; margin-top: -2rem; } .z_alert p:nth-child(1) { line-height: 1.5rem; } .z_alert p:nth-child(2) span { display: inline-block; width: 49%; height: .5rem; line-height: .5rem; float: left; border-top: 1px solid #ddd; } .z_cancel { border-right: 1px solid #ddd; } </style> </head> <body> <div class="container"> <!-- 照片添加 --> <div class="z_photo"> <div class="z_file"> <input type="file" name="file" id="file" value="" accept="image/*" multiple onchange="imgChange('z_photo','z_file');" /> </div> </div> <!--遮罩层--> <div class="z_mask"> <!--弹出框--> <div class="z_alert"> <p>确定要删除这张图片吗？</p> <p> <span class="z_cancel">取消</span> <span class="z_sure">确定</span> </p> </div> </div> </div> <script type="text/javascript"> //px转换为rem (function(doc, win) { var docEl = doc.documentElement, resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize', recalc = function() { var clientWidth = docEl.clientWidth; if (!clientWidth) return; if (clientWidth >= 640) { docEl.style.fontSize = '100px'; } else { docEl.style.fontSize = 100 * (clientWidth / 640) + 'px'; } }; if (!doc.addEventListener) return; win.addEventListener(resizeEvt, recalc, false); doc.addEventListener('DOMContentLoaded', recalc, false); })(document, window); function imgChange(obj1, obj2) { //获取点击的文本框 var file = document.getElementById("file"); //存放图片的父级元素 var imgContainer = document.getElementsByClassName(obj1)[0]; //获取的图片文件 var fileList = file.files; //文本框的父级元素 var input = document.getElementsByClassName(obj2)[0]; var imgArr = []; //遍历获取到得图片文件 for (var i = 0; i < fileList.length; i++) { var imgUrl = window.URL.createObjectURL(file.files[i]); imgArr.push(imgUrl); var img = document.createElement("img"); img.setAttribute("src", imgArr[i]); var imgAdd = document.createElement("div"); imgAdd.setAttribute("class", "z_addImg"); imgAdd.appendChild(img); imgContainer.appendChild(imgAdd); }; imgRemove(); }; function imgRemove() { var imgList = document.getElementsByClassName("z_addImg"); var mask = document.getElementsByClassName("z_mask")[0]; var cancel = document.getElementsByClassName("z_cancel")[0]; var sure = document.getElementsByClassName("z_sure")[0]; for (var j = 0; j < imgList.length; j++) { imgList[j].index = j; imgList[j].onclick = function() { var t = this; mask.style.display = "block"; cancel.onclick = function() { mask.style.display = "none"; }; sure.onclick = function() { mask.style.display = "none"; t.style.display = "none"; //$(t).remove();//引用了Jquery才能这样使用 }; } }; }; </script> </body> </html>
这是效果图：
这个配合base64转码图片使用代码如下：不过不能无限制上传图片哈，我这里限制了只能上传5张图片
<!DOCTYPE html> <html lang="en"> <head runat="server"> <meta charset="utf-8" /> <meta name="renderer" content="webkit|ie-comp|ie-stand" /> <meta name="viewport" content="width=device-width,height=device-height,user-scalable=no" /> <meta name="keywords" content="" /> <meta name="description" content="" /> <title></title> <link href="../service/css/bootstrap.min.css" rel="stylesheet" /> <script src="scripts/Base64Img.js" type="text/javascript"></script> <script type="text/javascript" src="../service/scripts/jquery-2.1.4.min.js"></script> <style type="text/css"> * { margin: 0; padding: 0; } /*图片上传*/ html, body { width: 100%; height: 100%; } .container { width: 100%; height: 100%; overflow: auto; clear: both; } .z_photo { width: 100%; height: 5rem; padding: 0.3rem; overflow: auto; clear: both; border: 1px dashed #ddd; } .z_photo img { width: 1rem; height: 1rem; } .z_addImg { float: left; margin-right: 0.2rem; margin-bottom: 0.2rem; } .z_file { width: 1rem; height: 1rem; background: url(/images/z_add.png) no-repeat; background-size: 100% 100%; float: left; margin-right: 0.2rem; } .z_file input::-webkit-file-upload-button { width: 1rem; height: 1rem; border: none; position: absolute; outline: 0; opacity: 0; } .z_file input#file { display: block; width: auto; border: 0; vertical-align: middle; } /*遮罩层*/ .z_mask { width: 100%; height: 100%; background: rgba(0, 0, 0, .5); position: fixed; top: 0; left: 0; z-index: 999; display: none; } .z_alert { width: 3rem; height: 2rem; border-radius: .2rem; background: #fff; font-size: .24rem; text-align: center; position: absolute; left: 50%; top: 50%; margin-left: -1.5rem; margin-top: -2rem; } .z_alert p:nth-child(1) { line-height: 1.5rem; } .z_alert p:nth-child(2) span { display: inline-block; width: 49%; height: .5rem; line-height: .5rem; float: left; border-top: 1px solid #ddd; } .z_cancel { border-right: 1px solid #ddd; } </style> </head> <body class="bg-fff"> <form id="form1" runat="server"> <div class="section" id="container"> <div id="head" class="section"> <div class="section header"> <h1>订单评价</h1> <a href="javascript:void(0);" class="back-btn"> <img src="images/back.png" /></a> <!-- 跳转到会员 --> <a href="javascript:void(0);" class="head-icon" id="inMember"> <img src="images/member.png" /></a> </div> </div> <div id="content" class="section"> <div class="section evaluate-box"> <div class="section evaluate-head"> <h3>商品评价：</h3> <!-- 评价的星级可通过e-star属性获取 --> <!-- 提交的时候向后台传递e-star的属性值就是星级数 --> <div class="f-left evaluate-star" e-star="0" id="spgoodsLevel"> <span> <img src="images/star_b.png"></span> <span> <img src="images/star_b.png"></span> <span> <img src="images/star_b.png"></span> <span> <img src="images/star_b.png"></span> <span> <img src="images/star_b.png"></span> </div> </div> <div class="section evaluate-txt"> <textarea placeholder="商品评价？质量、安全等评价" rows="5" id="txtgoodsComment"></textarea> </div> </div> <div class="section evaluate-box"> <div class="section evaluate-head"> <h3>图片上传：<span style="color: rgba(0, 0, 0, .5);">最多只能传5张</span></h3> </div> </div> <div> <div class="container"> <!-- 照片添加 --> <div class="z_photo"> <div class="z_file"> <input type="file" name="file" id="file" value="" accept="image/*" multiple onchange="imgChange('z_photo','z_file');" /> <div class="hidden"> <div class="span" id="update_file_label"></div> <input type="hidden" id="base64_output1" /> <input type="hidden" id="base64_output2" /> <input type="hidden" id="base64_output3" /> <input type="hidden" id="base64_output4" /> <input type="hidden" id="base64_output5" /> <div class="strong red" id="img_size"></div> <img id="img_prev" src="../images/member/nophoto.gif" style="max- 100%; border: 1px solid gray;"> </div> </div> </div> <!--遮罩层--> <div class="z_mask"> <!--弹出框--> <div class="z_alert"> <p style="display: block;">确定要删除这张图片吗？</p> <p style="display: block;"> <span class="z_cancel">取消</span> <span class="z_sure">确定</span> </p> </div> </div> </div> <script type="text/javascript"> //px转换为rem (function (doc, win) { var docEl = doc.documentElement, resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize', recalc = function () { var clientWidth = docEl.clientWidth; if (!clientWidth) return; if (clientWidth >= 640) { docEl.style.fontSize = '100px'; } else { docEl.style.fontSize = 100 * (clientWidth / 640) + 'px'; } }; if (!doc.addEventListener) return; win.addEventListener(resizeEvt, recalc, false); doc.addEventListener('DOMContentLoaded', recalc, false); })(document, window); function imgChange(obj1, obj2) { var imgCount = ($(".z_addImg").length + 1); if (imgCount <= 5) { var _baseImgSrc = "base64_output" + imgCount; //获取点击的文本框 var file = document.getElementById("file"); //存放图片的父级元素 var imgContainer = document.getElementsByClassName(obj1)[0]; //获取的图片文件 var fileList = file.files; //文本框的父级元素 var input = document.getElementsByClassName(obj2)[0]; var imgArr = []; //遍历获取到得图片文件 for (var i = 0; i < fileList.length; i++) { var imgUrl = window.URL.createObjectURL(file.files[i]); imgArr.push(imgUrl); var img = document.createElement("img"); img.setAttribute("src", imgArr[i]); var imgAdd = document.createElement("div"); imgAdd.setAttribute("class", "z_addImg"); imgAdd.appendChild(img); imgContainer.appendChild(imgAdd); }; imgRemove(); console.log(_baseImgSrc); $("#update_file_label").html(this.value); gen_base64(_baseImgSrc, 'img_size', 'img_prev', 'file'); } else { alert("上传图片不能超过5张"); } }; function imgRemove() { var imgList = document.getElementsByClassName("z_addImg"); var mask = document.getElementsByClassName("z_mask")[0]; var cancel = document.getElementsByClassName("z_cancel")[0]; var sure = document.getElementsByClassName("z_sure")[0]; for (var j = 0; j < imgList.length; j++) { imgList[j].index = j; imgList[j].onclick = function () { var t = this; mask.style.display = "block"; cancel.onclick = function () { mask.style.display = "none"; }; sure.onclick = function () { mask.style.display = "none"; $(t).remove(); //t.style.display = "none"; }; } }; }; </script> </div> </div> </div> <input id="txtOrderID" type="hidden" runat="server" /> <input id="txtMemID" type="hidden" runat="server" /> </form> </body> </html>
Base64Img.js的代码：
function $_(id) { return document.getElementById(id); } /*把图片转成Base64码 @param 参数说明： codeInput:把转好的Base64码存放在哪个控件中 imgSize:图片的大小（单位是KB） imgSrc:点击上传后图片的显示的标签 fileInputId:上传控件的ID */ function gen_base64(codeInput, imgSize, imgSrc, fileInputId) { $_(codeInput).value = ''; $_(imgSize).innerHTML = ''; $_(imgSrc).src = '../images/member/nophoto.gif'; var file = $_(fileInputId).files[0]; if (!/image/w+/.test(file.type)) { alert("请确保文件为图像类型"); return false; } r = new FileReader(); //本地预览 r.onload = function () { $_(codeInput).value = r.result; $_(imgSrc).src = r.result; //$("#img_prev").attr("src", r.result); //$("#img_prev").css("width", "50%"); $_(imgSize).innerHTML = " 图片大小：" + Math.round(r.result.length / 1024 * 1000) / 1000 + " KB"; } r.readAsDataURL(file); }