js单图片上传
<form action="" id="form1"> <input type="file" name="head_img" style="display:none;" id="file0"> //这里一定要写name 后台就是通过name接受内容 <div class="tx upload"> <lable> {if condition="($company_info.cover_img)"} <img id="box_headimg" src="{$company_info.cover_img}" alt=""> {else/} <img id="box_headimg" src="STATIC_BOX/box/images/tx.png" alt=""> {/if} </lable> </div> </form>
前台js
$('#file').change(function(){ if (this.files && this.files[0]) { var objUrl = getObjectURL(this.files[0]); console.log(objUrl); var data = new FormData($('#form1')[0]); console.log($('#form1')); console.log(data); $.ajax({ url: "{:url('advert/upload_img')}", type: 'POST', data: data, async: false, dataType: 'JSON', processData: false, contentType: false, }).done(function(ret){ // alert(ret.path_img); if(ret.error==1){ $('#cover_img').attr('src',ret.path_img); $('#cover_img').css('width','100px'); $('#cover_img').css('height','100px'); }else{ alert('上传失败'); } }); } })
function getObjectURL(file) { var url = null; if (window.createObjectURL != undefined) { // basic url = window.createObjectURL(file); } else if (window.URL != undefined) { // mozilla(firefox) url = window.URL.createObjectURL(file); } else if (window.webkitURL != undefined) { // webkit or chrome url = window.webkitURL.createObjectURL(file); } return url; }
后台php
public function upload(){ $file = request()->file('head_img'); $path=str_replace('\\', '/', 'upload/box'); if (!is_dir($path)) { mkdir($path, 0777,true); } // $path=company_coverimg_path('854'); if($file){ $info = $file->move($path); if($info){ $path_img ='/'.$path.'/'.$info->getSaveName(); $data['path_img']=$path_img; $data['error']=1; }else{ // 上传失败获取错误信息 $msg = $file->getError(); $data['error']=2; $data['msg']=$msg; } } echo json_encode($data); }
<scroll-view scroll-y="true" style="height: 200rpx;">
<view style="background: red; width: 200px; height: 100px; display: inline-block" ></view>
<view style="background: green; width: 200px; height: 100px; display: inline-block"></view>
<view style="background: blue; width: 200px; height: 100px; display: inline-block"></view>
<view style="background: yellow; width: 200px; height: 100px; display: inline-block"></view>
</scroll-view>