支持多张图片上传、图片上传数量修改、可以删除
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width" />
<title>jquery 图片base64</title>
<script type="text/javascript" src="http://s28.9956.cn/static/v4/js/jquery-1.8.3.min.js"></script>
<style type="text/css">
*{margin: 0;padding: 0;}
.popup-box {z-index:1010;}
.img-div {border:1px solid #ddd;border-radius:100%;float:left;line-height:1;margin-left:5px;overflow:hidden;}
/*上传图片插件的样式*/.fl {float:left;}
.img-box .up-p {margin-bottom:20px;font-size:16px;color:#555;}
.z_photo .z_file {position:relative;}
.z_file .file {100%;height:100%;opacity:0;position:absolute;top:0px;left:0px;z-index:100;}
.z_photo .up-section {position:relative;margin-right:20px;border:1px solid #fff;}
.up-section .close-upimg {position:absolute;top:6px;right:8px;display:none;z-index:10;}
.up-section .up-span {display:block;100%;height:100%;visibility:hidden;position:absolute;top:0px;left:0px;z-index:9;}
.up-section:hover {border:1px solid #1BBE60;}
.up-section:hover .close-upimg {display:block;}
.z_photo .up-img {display:block;100%;}
.loading {border:1px solid #D1D1D1;background:url( https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1502943583253&di=196b6df604a7489dc247a217bf05c0b5&imgtype=0&src=http%3A%2F%2Fwww.xjsheying.com%2Fqqwebhimgs%2Fuploads%2Fbd565372.jpg) no-repeat center;}
.up-opcity {opacity:0;}
.img-name-p {display:none;}
.upimg-div .up-section {140px;height:130px;overflow:hidden;}
.img-box .upimg-div .z_file {140px;height:130px;overflow:hidden;}
.z_file .add-img {display:block;140px;/* height:130px;*/}
/*遮罩层样式*/.mask {z-index:1000;display:none;position:fixed;top:0px;left:0px;100%;height:100%;background:rgba(0,0,0,.4);}
.mask .mask-content {500px;position:absolute;top:50%;left:50%;margin-left:-250px;margin-top:-80px;background:white;height:160px;text-align:center;}
.mask .mask-content .del-p {color:#555;height:94px;line-height:94px;font-size:18px;border-bottom:1px solid #D1D1D1;}
.mask-content .check-p {height:66px;line-height:66px;position:absolute;bottom:0px;left:0px;100%;}
.mask-content .check-p span {49%;display:inline-block;text-align:center;color:#1BBE60;font-size:18px;}
.check-p .del-com {border-right:1px solid #D1D1D1;}
</style>
</head>
<body>
<form enctype="multipart/form-data">
<textarea id="testArea" style="display: block; 100%;height: 30px;"></textarea>
<div class="img-box full">
<div class=" img-section">
<div class="z_photo upimg-div clearfix" >
<div class="z_file fl">
<img src="https://timgsa.baidu.com/timg?image&quality=80&size=b10000_10000&sec=1502933359&di=adbb58e41f757cee3f62d2529d9ba5d6&src=http://pic.58pic.com/58pic/16/14/96/80T58PIC8Av_1024.jpg" class="add-img">
<input style=" 140px;height: 130px;" type="file" name="file" id="testFile" class="file" value="" accept="image/jpg,image/jpeg,image/png,image/bmp" multiple="multiple" />
</div>
</div>
</div>
</div>
<div class="mask works-mask">
<div class="mask-content">
<p class="del-p ">您确定要删除图片吗？</p>
<p class="check-p"><span class="del-com wsdel-ok" style="49%;margin-right: 0;margin-top: 0;">确定</span><span class="wsdel-no" style="49%;margin-right: 0;margin-top: 0;">取消</span></p>
</div>
</div>
<button type="button" class="submit submitjc" style="margin-left: 0;">提交</button>
</form>
<script type="text/javascript">
$("#testFile").change(function () {
run(this);
});
$(".submitjc").click(function(){
var data_arr = {};
data_arr.prid = {$detail['pr_id']};
data_arr.prName = '{$detail['pr_name']}';
data_arr.comName = '{$detail['companyInfo']['companyName']}';
data_arr.comId = {$detail['com_id']};
data_arr.type = $("#type").val();
data_arr.code = {$detail['pr_code']};
data_arr.content = $("#jccontent").val();
data_arr.file = $("#testArea").val();
//data_arr.file = $("#file")[0].file;
$.ajax({
type: 'Post',
url: '/chanpin/{$detail['pr_id']}/correction/',
data: data_arr,
async: false,
success: function (result) {
alert("提交成功");
$(".popup-box").hide();
$("#jccontent,#file,#testArea").val("");
$(".up-section").remove();
$(".z_file").show();
if (result.Code == 200) {
alert(result.Data);
} else {
}
}
});
});
function run(input_file) {
/*input_file：文件按钮对象*/
/*get_data: 转换成功后执行的方法*/
if (typeof (FileReader) === 'undefined') {
alert("抱歉，你的浏览器不支持 FileReader，不能将图片转换为Base64，请使用现代浏览器操作！");
} else {
try {
/*图片转Base64 核心代码*/
var file = input_file.files;
for(var i= 0;i<file.length;i++) {
//这里我们判断下类型如果不是图片就返回 去掉就可以上传任意文件
if (!/image/w+/.test(file[i].type)) {
alert("请确保文件为图像类型");
return false;
}
var reader = new FileReader();
reader.onload = function () {
if(flag){
var currVal = $('#testArea').val();
if(!(currVal.length===0 || currVal ==null)) currVal+='#';
$('#testArea').val(currVal+this.result);
}
}
reader.readAsDataURL(file[i]);
}
} catch (e) {
alert('图片转Base64出错啦！' + e.toString())
}
}
}
// <!-- 上传图片 -->
var flag = true;
$(function(){
var delParent;
var defaults = {
fileType : ["jpg","png","bmp","jpeg","gif"], // 上传文件的类型
fileSize : 1024 * 1024 * 2 // 上传文件的大小 10M
};
/*点击图片的文本框*/
$(".file").change(function(){
flag = true;
var idFile = $(this).attr("id");
var file = document.getElementById(idFile);
var imgContainer = $(this).parents(".z_photo"); //存放图片的父亲元素
var fileList = file.files; //获取的图片文件
var input = $(this).parent();//文本框的父亲元素
var imgArr = [];
//遍历得到的图片文件
var numUp = imgContainer.find(".up-section").length;
var totalNum = numUp + fileList.length; //总的数量
if(fileList.length > 3 || totalNum > 3 ){
flag = false;
alert("上传图片数目不可以超过3个，请重新选择"); //一次选择上传超过3个 或者是已经上传和这次上传的到的总数也不可以超过3个
}
else if(numUp < 3){
fileList = validateUp(fileList);
for(var i = 0;i<fileList.length;i++){
var imgUrl = window.URL.createObjectURL(fileList[i]);
imgArr.push(imgUrl);
var $section = $("<section class='up-section fl loading'>");
imgContainer.append($section);
var $span = $("<span class='up-span'>");
$span.appendTo($section);
var $img0 = $("<img class='close-upimg'>").on("click",function(event){
event.preventDefault();
event.stopPropagation();
$(".works-mask").show();
delParent = $(this).parent();
});
$img0.attr("src","{$resDomainPath}/product/images/a7.png").appendTo($section);
var $img = $("<img class='up-img up-opcity'>");
$img.attr("src",imgArr[i]);
$img.appendTo($section);
var $p = $("<p class='img-name-p'>");
$p.html(fileList[i].name).appendTo($section);
var $input = $("<input id='taglocation' name='taglocation' value='' type='hidden'>");
$input.appendTo($section);
var $input2 = $("<input id='tags' name='tags' value='' type='hidden'/>");
$input2.appendTo($section);
}
}
setTimeout(function(){
$(".up-section").removeClass("loading");
$(".up-img").removeClass("up-opcity");
},450);
numUp = imgContainer.find(".up-section").length;
if(numUp >= 3){
$(this).parent().hide();
}
});
$(".z_photo").delegate(".close-upimg","click",function(){
$(".works-mask").show();
delParent = $(this).parent();
});
$(".wsdel-ok").click(function(){
$(".works-mask").hide();
var numUp = delParent.siblings().length;
if(numUp < 4){
delParent.parent().find(".z_file").show();
}
delParent.remove();
// delParent 删除图片的base64
var selImg = $(".up-section"),
selImgValue = $('#testArea').val().split('#'),
delIndex = 0;
for(var i = 0;i<selImg.length;i++) {
if(selImg[i] === delParent[0]) {
delIndex = i;break;
}
}
selImgValue.splice(delIndex, 1);
$('#testArea').val(selImgValue.join('#'));
});
$(".wsdel-no").click(function(){
$(".works-mask").hide();
});
function validateUp(files){
var arrFiles = [];//替换的文件数组
for(var i = 0, file; file = files[i]; i++){
//获取文件上传的后缀名
var newStr = file.name.split("").reverse().join("");
if(newStr.split(".")[0] != null){
var type = newStr.split(".")[0].split("").reverse().join("");
console.log(type+"===type===");
if(jQuery.inArray(type, defaults.fileType) > -1){
// 类型符合，可以上传
if (file.size >= defaults.fileSize) {
alert(file.size);
alert('您这个"'+ file.name +'"文件大小过大');
} else {
// 在这里需要判断当前所有文件中
arrFiles.push(file);
}
}else{
alert('您这个"'+ file.name +'"上传类型不符合');
}
}else{
alert('您这个"'+ file.name +'"没有类型, 无法识别');
}
}
return arrFiles;
}
})
</script>
</body>
</html>