利用laravel+ajax实现文件上传功能方法示例

前言

大家都知道，早期的XMLHttpRequest不支持文件上传，一般用第三方js插件或者flash，现在可以借助XMLHttpRequest Level 2 的FormData对象实现二进制文件上传，正好最近工作中遇到了这个需求，所以本文就来给大家总结下实现的方法，话不多说了，来一起看看详细的介绍吧。

示例代码

@extends('layouts.art')
@section('content')

<form class="form-horizontal" id="avatar">
  {{ csrf_field() }}
<div class="form-group">
<label for="inputEmail3" class="col-sm-2 control-label">名字</label>
<div class="col-sm-8">
 <input type="title" class="form-control" id="title" name="title">
</div>
</div>

<div class="form-group">
<label for="inputEmail3" class="col-sm-2 control-label">头像</label>
<div class="col-sm-8">
 <input type="file" class="form-control" id="title" name="photo">
</div>
</div>

<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
 <a class="btn btn-default" onclick="uploadInfo()">上传</a>
</div>
</div>
</form>

<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript">
function uploadInfo() {
 var formData = new FormData($("#avatar"));
 $.ajax({
  url: "{{url('photo')}}",
  type: 'POST',
  data: formData,
  contentType: false,
  processData: false,
  success: function (returndata) {
   console.log(returndata);
  },
  error: function (returndata) {
   console.log(returndata);
  }
 });
}

</script>

@endsection

//生成路径，图片存储
 $ext = $request->photo->getClientOriginalExtension();
 $cover_path = "images/album/covers/" . time() . $ext;
 $name = "photo".time();
 $src = "images/album/photos/". $name .".jpg";
 Image::make($request->photo)->save(public_path($src));*/

//批量上传图片

foreach ($request->photo as $key => $value) {
  //生成路径，图片存储
  $prefix = "photo".mt_rand(1,1000);
  $Origname = $value->getClientOriginalName();
  $name = $prefix.$Origname;
  $src = "images/album/photos/".$name;
  $realPath = $value->getRealPath();
  Storage::disk('uploads')->put($src,file_get_contents($realPath));
 }

更多参考

https://developer.mozilla.org/zh-CN/docs/Web/API/FormData/UsingFormDataObjects

https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/UsingXMLHttpRequest#Submittingformsanduploading_files

来源：https://fjun.org/laravel-ajax/