tp5使用layui实现多个图片上传(带附件选择)的方法实例

tp5使用layui实现多个图片上传（带附件选择），如何加载layui在此不详细说明，有需要可以百度

html代码，主要处理都是在jq中，完成方法全部原创，也许不是最简单的，但也能实现效果

{include file=\"public/header\" /}<body><div class=\"x-nav\"><span class=\"layui-breadcrumb\"><a href=\"\">首页</a><a href=\"\">多选图片列表</a><a><cite>添加多选图片</cite></a></span><a class=\"layui-btn layui-btn-small\" style=\"line-height:1.6em;margin-top:3px;float:right\" href=\"javascript:location.replace(location.href);\" rel=\"external nofollow\"  title=\"刷新\"><i class=\"layui-icon\" style=\"line-height:30px\">ဂ</i></a></div><div class=\"x-body\"><div class=\"top\" style=\"font-size: 14px\">添加多选图片</div><div style=\"width:100%;height: 5px;background-color: #077ee3;margin-top: 5px;margin-bottom: 20px\"></div><form  action=\"\" enctype=\"multipart/form-data\" method=\"post\" role=\"form\" onSubmit=\"return check()\"><div class=\"layui-upload\"><button type=\"button\" class=\"layui-btn\" id=\"upload_img\">多图片上传</button><a class=\"layui-btn layui-btn-sm layui-btn-normal\" onclick=\"selectImg(\'选择图片\',\'{:url(\"selectImg\")}\',\'1000\',\'600\')\" href=\"javascript:;\" rel=\"external nofollow\"  rel=\"external nofollow\"  rel=\"external nofollow\"  rel=\"external nofollow\" ><i class=\"layui-icon\"></i>选择图片</a><blockquote class=\"layui-elem-quote layui-quote-nm\" style=\"margin-top: 10px;\">预览图：<div class=\"layui-upload-list\" id=\"demo2\"></div></blockquote></div><input  name=\"url\" class=\"imgInput\" type=\"hidden\"><!--<button type=\"button\"  class=\"layui-btn\" onclick=\"test()\">--><!--测试--><!--</button>--><div class=\"layui-form-item\"><label for=\"\" class=\"layui-form-label\"></label><button type=\"submit\" class=\"layui-btn btnAdd\" lay-filter=\"add\" lay-submit=\"\">增加</button></div></form></div><style>.imgInput{width: 600px;height: 35px;}.layui-form-label{font-size: 14px;width: 100px;}select{width: 500px;}#pre_img{display: none;padding: 5px;border: 1px solid #999;}#demo2{display: flex;display: -webkit-flex;/*justify-content: space-between;*/flex-direction: row;flex-wrap: wrap;}.img{width: 150px;height: 150px;}.btnAdd{margin-top: 40px;}.img_item{display: flex;flex-direction: column;text-align: center;margin-right: 20px;margin-bottom: 20px;}.delimg{text-align: center;line-height: 20px;width: 160px;height: 20px;background-color: red;color: white;margin-top: 5px;}</style><script>function check(){$(\'input[name=\"url\"]\').val(urlList);var str = $(\'input[name=\"url\"]\').val();if(str ==\'\'|| str==null || str==\'undefined\'){alert(\"请选择图片\");return false;}}function selectImgGo($url,$urlWeb){var index = 0;if(urlList.length>0){index = urlList.length;}var img = $([\'<div class=\"img_item\">\',\'<div class=\"img\" style=\"overflow:hidden;\">\',\'<img src=\"\'+ $urlWeb +\'\" alt=\"\' + $url +\'\" class=\"layui-upload-img\" style=\"max-width:150px;\"></div>\',\'<div class=\"delimg\" id=\"delimg\" onclick=delImg(\"\'+ index +\'\")  href=\"javascript:;\" rel=\"external nofollow\"  rel=\"external nofollow\"  rel=\"external nofollow\"  rel=\"external nofollow\"  style=\"cursor:pointer \">删除</div></div>\'].join(\'\'));$(\'#demo2\').append(img);urlList.push($url);imgList.push($urlWeb);}var imgList = [];var urlList = [];layui.use([\'upload\',\'jquery\'],function () {$ = layui.jquery;var upload = layui.upload;//多图片上传upload.render({elem: \'#upload_img\',url:\"{:url(\'share/upload_img\')}\" //上传接口,multiple: true,before: function(obj){//预读本地文件示例，不支持ie8obj.preview(function(index, file, result){})},done: function(res){var index0 = 0;if(urlList.length>0){index0 = urlList.length;}var img0 = $([\'<div class=\"img_item\">\',\'<div class=\"img\" style=\"overflow:hidden;\">\',\'<img src=\"\'+ res.msg +\'\"  class=\"layui-upload-img\" style=\"max-width:150px;\"></div>\',\'<div class=\"delimg\" id=\"delimg\" onclick=delImg(\"\'+ index0 +\'\")  href=\"javascript:;\" rel=\"external nofollow\"  rel=\"external nofollow\"  rel=\"external nofollow\"  rel=\"external nofollow\"  style=\"cursor:pointer \">删除</div></div>\'].join(\'\'));$(\'#demo2\').append(img0);urlList.push(res.url);imgList.push(res.msg);},error: function(){//        layer.close(layer.msg());//关闭上传提示窗口//请求异常回调}});});function delImg(index){urlList.splice(index,1);imgList.splice(index,1);$(\'#demo2\').empty();for (var i=0;i<imgList.length;i++){var img0 = $([\'<div class=\"img_item\">\',\'<div class=\"img\" style=\"overflow:hidden;\">\',\'<img src=\"\'+ imgList[i] +\'\"  class=\"layui-upload-img\" style=\"max-width:150px;\"></div>\',\'<div class=\"delimg\" id=\"delimg\" onclick=delImg(\"\'+ i +\'\")  href=\"javascript:;\" rel=\"external nofollow\"  rel=\"external nofollow\"  rel=\"external nofollow\"  rel=\"external nofollow\"  style=\"cursor:pointer \">删除</div></div>\'].join(\'\'));$(\'#demo2\').append(img0);}}/*选择图片*/function selectImg(title,url,w,h){x_admin_show(title,url,w,h);}</script></body></html>

php代码

//php layui图片上传public function upload_img(){$file = request()->file(\'file\'); // 获取上传的文件if($file==null){exit(json_encode(array(\'code\'=>1,\'msg\'=>\'未上传图片\')));}else{//5、对上传文件做出条件限制（类型，大小等）$map = [\'ext\'=>\'jpg,png,gif,jpeg\',//后辍名\'size\'=>320000000,//最大3M];//6、对上传的文件进行较验，如果合格就进行转移到预定设定好的public/uploads目录下//返回保存的文件信息info，包括文件名和大小等数据$info = $file->validate($map)->move(ROOT_PATH . \'public/uploads/img\');//获取图片宽高list( $width , $height , $type , $attr ) = getimagesize ($info->getPathName());if(is_null($info)){$this->error($info->getError());}$img = str_replace(\'\\\\\',\'/\',$info->getSaveName());//保存附件$annexData[\'filesize\'] = $info->getInfo()[\'size\'];$annexData[\'mimetype\'] = $info->getInfo()[\'type\'];$annexData[\'filename\'] = $info->getInfo()[\'name\'];$annexData[\'imagewidth\'] = $width;$annexData[\'imageheight\'] = $height;$annexData[\'type\'] = \'img\';$annexData[\'url\'] = $img;AAnnexModel::create($annexData);$img = constant(\"URL\").\"/uploads/img/\".$img;exit(json_encode(array(\'code\'=>0,\'msg\'=>$img,\'url\'=>$annexData[\'url\'])));}}//多选图片添加页面public function addImages(){if($this->request->isPost()){//2、获取提交过来的数据，最后true参数，表示连上传文件一起获取$data = $this->request->param(true);$res = AImagesModel::create($data);if(is_null($res)){$this->error(\'文件添加失败\');}else{$this->success(\'文件添加成功...\',url(\'imagesList\'));}return;}return $this->fetch(\'images_add\');}

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