tp5使用layui实现多个图片上传(带附件选择)的方法实例

程序员文章站 2022-06-15 15:38:29

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{includ...

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">&#xe60a;</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ie8
        obj.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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