ajax + Laravel 多文件上传

路由

C:L2017.11.15 MAMProottagMoonroutesweb.php

Route::post('/multiUploadImg','UploadCtrl@multiUploadImg');
Route::get('/upload',function(){
   return view('upload.main');
});

前端

C:L2017.11.15 MAMProottagMoonresourcesviewsuploadmain.blade.php

截屏

before :

（权简风格 :）

after :

html

<form id="form_uploadImg" method="post" enctype="multipart/form-data">
        <div class="file-field">
            <div class="btn btn-primary btn-sm">
                <span>Choose files</span>
                <input name="filesToUpload[]" id="input_multifileSelect" type="file" multiple>
            </div>
        </div>
    </form>
    <br><br><br>
    <div id="div_uploadedImgs"></div>

!!! 注意下面这一句，必须要有一对方括号：[]

<input name="filesToUpload[]"

js

$(document).ready(function() {
            $('#input_multifileSelect').on('change',function(){
                var ajax_option= {
                    url: "multiUploadImg",// type : 'post',默认是 form action
                    success: function ( data ) {
                        console.log( data );
                        showUploadedImgs( data.uploadedFiles );
                    }
                }
                $('#form_uploadImg').ajaxSubmit( ajax_option );
            });
        });
        // 显示上传的图片
        function showUploadedImgs( imgs ){
            $.each( imgs,function(index,img ) {
                var pic = '<p><img src="{0}" alt="" /><br>{0} （ {1} - {2} ）</p>';
                pic = pic.format( baseUrl + 'public/' + img.savedFile,img.name,img.size );
                $('#div_uploadedImgs').prepend( pic );
            });
        }
        // 为 String 类增加 format 函数
        String.prototype.format = function() {
            var str = this;
            for (var i = 0; i < arguments.length; i++) {
                var reg = new RegExp("{" + i + "}","gm");
                str = str.replace(reg,arguments[i]);
            }
            return str;
        }

控制器（Controller）

C:L2017.11.15 MAMProottagMoonappHttpControllersUploadCtrl.php

/** * 接收上传文件 * @param Request $request * @return array */
    public function multiUploadImg( Request $request ){

        // 重组数组，子函数
        function reArrayFiles( $file_post ) {

            $file_ary = array();
            $file_count = count($file_post['name']);
            $file_keys = array_keys($file_post);

            for ($i=0; $i<$file_count; $i++) {
                foreach ($file_keys as $key) {
                    $file_ary[$i][$key] = $file_post[$key][$i];
                }
            }

            return $file_ary;
        }

        $imgFiles = $_FILES['filesToUpload']; // 与前端页面中的 input name=“filesToUpload[]” 相对应
        $uploadedFiles = array(); // 返回值

        if(!empty($imgFiles))
        {
            $img_desc = reArrayFiles( $imgFiles );
            $destinationPath = 'storage/uploads/'; //public 文件夹下面建 storage/uploads 文件夹

            foreach( $img_desc as $img )
            {
                $savedFile = $destinationPath.date('YmdHis',time()).mt_rand().'.'.pathinfo( $img['name'],PATHINFO_EXTENSION );
                move_uploaded_file($img['tmp_name'],$savedFile);
                $img['savedFile'] = $savedFile ;
                array_push( $uploadedFiles,$img );
            }
        }

        $allowed_extensions = ["png","jpg","gif"];
        // TODO 判断文件类型

        return ['uploadedFiles' => $uploadedFiles ];
    }

response

note

• php : 7.1.5
• Laravel : 5.4
• jQuery : 3.3.1
• Date : 2018.02.07

gif video

download

http://download.csdn.net/download/lmn13/10244238

（编辑：李大同）

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