<link rel="stylesheet" href="/home/style/cropper.css" /><link href="/home/tupian/css/bootstrap.min.css" rel="stylesheet"><link href="/home/tupian/css/cropper.min.css" rel="stylesheet"><link href="/home/tupian/css/main.css" rel="stylesheet"><script src="/home/tupian/js/jquery.min.js"></script><script src="/home/tupian/js/bootstrap.min.js"></script><script src="/home/tupian/js/cropper.min.js"></script><script src="/home/tupian/js/main.js"></script><script src="http://www.jq22.com/jquery/jquery-2.1.1.js"></script><div class="form-group"><label class="col-sm-3 control-label">照片：</label><div class="col-sm-9"><div class="a-up"> <--是第二张图片加号的效果--><input type="file" οnchange="onChangeFn(this); "name="image[]" accept="image/jpeg,image/png"  required /></div><div class="error">*请添加图片</div></div></div><--模态框--><div class="modal fade" id="modal" tabindex="-1" role="dialog" aria-labelledby="modalLabel" aria-hidden="true"><div class="modal-dialog" role="document"><div class="modal-content"><button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button><div class="modal-header"><h5 class="modal-title" id="modalLabel">剪裁图片</h5></div><div class="modal-body"><div class="img-container"><img id="image" style="max-width:100%;max-height:350px;"><--这里的最大高度一定要设置--></div></div><div class="modal-footer"><button type="button" class="btn btn-primary" id="crop">Crop</button></div></div></div>
</div>   function onChangeFn (obj) {var _this=$(obj),_upload=_this.parent();currentUpload=_upload;// <img src="data:images/erweima.png" class="upload-img">//截取开始var files = obj.files;var done = function (url) {image.src = url;$modal.modal('show');};var reader;var file;var url;if (files && files.length > 0) {file = files[0];if (URL) {done(URL.createObjectURL(file));} else if (FileReader) {reader = new FileReader();reader.onload = function (e) {done(reader.result);};reader.readAsDataURL(file);}}}var image = document.getElementById('image');var $modal = $('#modal');var currentUpload;var cropper;$modal.on('shown.bs.modal', function () {cropper = new Cropper(image, {aspectRatio: 16/9,zoomable:true,zoomOnWheel:true,viewMode: 0,});}).on('hidden.bs.modal', function () {cropper.destroy();cropper = null;});document.getElementById('crop').addEventListener('click', function () {var canvas;$modal.modal('hide');if (cropper) {canvas = cropper.getCroppedCanvas({width: 800,height: 500,});
//            avatar.src = canvas.toDataURL();　　　　　　  <--读取图片-->var reader = new FileReader();reader.onload = function(evt) {currentUpload.before('<div class="divimg"><img src="' + evt.target.result + '" class="upload-img"><input type="hidden" value="' + evt.target.result + '" name="picc[]"><button type="button" class="close" οnclick="closeFun(this,1);"></button></div>');}canvas.toBlob(function (result) {reader.readAsDataURL(result);},"image/jpeg");
//            console.log(canvas);if (currentUpload.next().css('display')=='block') {currentUpload.next().css('display','none')}var strHtml='<div class="a-up"><input type="file" οnchange="onChangeFn(this);" name="image[]" accept="image/jpeg,image/png" id="pic" /></div>';currentUpload.after(strHtml);currentUpload.hide();}});

            <--接收过来的是base64的图片,速度较慢,应该是转成blob图片再传给后台,还没做>$base64_image_content = $_POST["picc"];foreach($base64_image_content as $k=>$v){$imageName = date("His",time())."_".rand(1111,9999).'.png';$dir = date('Ymd');$path = 'uploads/'.$dir;if (!is_dir($path)){ //判断目录是否存在 不存在就创建mkdir($path,0777,true);}if (strstr($v,",")){$base64_image_contents = explode(',',$v);$base64_image = $base64_image_contents[1];$root = $_SERVER['DOCUMENT_ROOT']."/".$path."/". $imageName;$r = file_put_contents($root, base64_decode($base64_image));//返回的是字节数
                }$image[] = '/'.$path.'/'. $imageName;}foreach ($image as $kk=>$vv) {$images[] = json_encode($vv, true);}$data["image"] = '['.implode(',',$images).']';             

//将base64格式图片转换为文件形式
function dataURLtoBlob(dataurl) {  var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);while(n--){u8arr[n] = bstr.charCodeAt(n);}return new Blob([u8arr], {type:mime});}