Laravel框架+Blob实现的多图上传功能示例

<form method="post" enctype="multipart/form-data" action="#">
  {{csrf_field()}}
  <ul class="list_btn">
  <li><img id="imgone" class="sz" width="100px" height="100px" src="" style="display: none;"></li>
   <li> <input type="file" id="house_img_one1" name="art_thumb" multiple="multiple" onchange="houseImgOne(this)"></li>
</ul>
  <div class="submit">上传</div>
</form>

<script>
  var _btnId = '';
  var all_urls="";
  var all_types="";
  function houseImgOne(_this) {
    var img = '<img class="sz" width="100px" height="100px" src=""  >'
    _btnId = $(_this).attr('id');
    var obj = document.getElementById("house_img_one1");
    var length = obj.files.length;
    //多图上传时遍历文件信息（可以通过object.files查看）
    for (var i = 0; i < length; i++) {
      var objUrl = getObjectURL(_this.files[i]);
      //图片后缀类型拼接
      all_types=all_types+_this.files[i].type;
      //将图片转换成base64自字符
      var oFReader = new FileReader();
      oFReader.readAsDataURL(_this.files[i]);
      oFReader.onload = function (oFREvent) {
        all_urls=all_urls+oFREvent.target.result+"&|||"; //拼接data形式base64的url
      };
      if (objUrl) {
        $('.sz:last').before(img);
        $('.sz').eq($(".sz").length - 2).attr("src", objUrl);
      }
    }
  }
  //点击提交按钮触发ajax
    $(".submit").click(function(){
    //console.log(all_types);
    $.ajax({
      type:"post",
      url:"{{url('admin/img')}}",
      data:{'imgs':all_urls,'types':all_types,'_token':"{{csrf_token()}}"},
      dataType:"json",
      success:function(data){
        if (data==1){
          // layer插件提示，可自行选择则
          layer.msg("上传成功", {icon: 6});
          window.location.reload();
        }else {
          alert("上传失败！");
        }
      }
    });
  });
  //获取blog对象url(实际获取的是缓存中的图片路径信息，用于即时显示，并非服务器返回的实际资源路径)
  function getObjectURL(file) {
    var url = null;
    if (window.createObjectURL != undefined) {
      url = window.createObjectURL(file);
    } else if (window.URL != undefined) {
      url = window.URL.createObjectURL(file);
    } else if (window.webkitURL != undefined) {
      url = window.webkitURL.createObjectURL(file);
    }
    return url;
  }
</script>

public function store(Request $request)
{
  $data=$request->all();
  $imgs = $data['imgs'];
  // array_values()用于重置数组下标
  $types =array_values(array_filter(explode('image/',$data['types'])));
  $arr=array_values(array_filter(explode('&|||',$imgs)));
  foreach ($arr as $k => $v){
  //文件路径
  $filepath = base_path().'/storage/app/imgs/'.date('YmdHis').$k.'.'.$types[$k];
  //提取base64字符
  $imgdata = substr($v,strpos($v,",") + 1);
  $decodedData = base64_decode($imgdata);
  file_put_contents($filepath,$decodedData );
  //插入数据库
  $img = new Img;
  $filepath = strchr($filepath,'/');
  $img->img_path=$filepath;
  $img->save();
}