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layui上傳檔案、圖片

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>layui</title>
  <meta name="renderer" content="webkit">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
  <link rel="stylesheet" href="//res.layui.com/layui/dist/css/layui.css"  media="all">
  <!-- 注意:如果你直接複製所有程式碼到本地,上述css路徑需要改成你本地的 -->
</head>
<body>
          
<blockquote class="layui-elem-quote">為節省伺服器開銷,以下示例均未配置真實上傳介面,所以每次上傳都會報提示:請求上傳接口出現異常,這屬於正常現象。</blockquote>   
          
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>常規使用:普通圖片上傳</legend>
</fieldset>
 
<div class="layui-upload">
  <button type="button" class="layui-btn" id="test1">上傳圖片</button>
  <div class="layui-upload-list">
    <img class="layui-upload-img" id="demo1">
    <p id="demoText"></p>
  </div>
</div>   
 
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>上傳多張圖片</legend>
</fieldset>
 
<div class="layui-upload">
  <button type="button" class="layui-btn" id="test2">多圖片上傳</button> 
  <blockquote class="layui-elem-quote layui-quote-nm" style="margin-top: 10px;">
    預覽圖:
    <div class="layui-upload-list" id="demo2"></div>
 </blockquote>
</div>
 
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>指定允許上傳的檔案型別</legend>
</fieldset>
 
<button type="button" class="layui-btn" id="test3"><i class="layui-icon"></i>上傳檔案</button>
<button type="button" class="layui-btn layui-btn-primary" id="test4"><i class="layui-icon"></i>只允許壓縮檔案</button>
<button type="button" class="layui-btn" id="test5"><i class="layui-icon"></i>上傳視訊</button>
<button type="button" class="layui-btn" id="test6"><i class="layui-icon"></i>上傳音訊</button> 
<div style="margin-top: 10px;">
   
<!-- 示例-970 -->
<ins class="adsbygoogle" style="display:inline-block;width:970px;height:90px" data-ad-client="ca-pub-6111334333458862" data-ad-slot="3820120620"></ins>
  
</div>
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>設定檔案大小限制</legend>
</fieldset> 
 
<button type="button" class="layui-btn layui-btn-danger" id="test7"><i class="layui-icon"></i>上傳圖片</button>
<div class="layui-inline layui-word-aux">
  這裡以限制 60KB 為例
</div>
 
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>同時繫結多個元素,並將屬性設定在元素上</legend>
</fieldset> 
 
<button class="layui-btn demoMore" lay-data="{url: '/a/'}">上傳A</button>
<button class="layui-btn demoMore" lay-data="{url: '/b/', size:5}">上傳B</button>
<button class="layui-btn demoMore" lay-data="{url: '/c/', accept: 'file',size:10}">上傳C</button>
 
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>選完檔案後不自動上傳</legend>
</fieldset>
 
<div class="layui-upload">
  <button type="button" class="layui-btn layui-btn-normal" id="test8">選擇檔案</button>
  <button type="button" class="layui-btn" id="test9">開始上傳</button>
</div>
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>拖拽上傳</legend>
</fieldset> 
 
<div class="layui-upload-drag" id="test10">
  <i class="layui-icon"></i>
  <p>點選上傳,或將檔案拖拽到此處</p>
</div>
 
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>高階應用:製作一個多檔案列表</legend>
</fieldset> 
 
<div class="layui-upload">
  <button type="button" class="layui-btn layui-btn-normal" id="testList">選擇多檔案</button> 
  <div class="layui-upload-list">
    <table class="layui-table">
      <thead>
        <tr><th>檔名</th>
        <th>大小</th>
        <th>狀態</th>
        <th>操作</th>
      </tr></thead>
      <tbody id="demoList"></tbody>
    </table>
  </div>
  <button type="button" class="layui-btn" id="testListAction">開始上傳</button>
</div> 
  
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
  <legend>繫結原始檔案域</legend>
</fieldset> 
 
<input type="file" name="file" id="test20">
 
          
<script src="//res.layui.com/layui/dist/layui.js" charset="utf-8"></script>
<!-- 注意:如果你直接複製所有程式碼到本地,上述js路徑需要改成你本地的 -->
<script>
layui.use('upload', function(){
  var $ = layui.jquery
  ,upload = layui.upload;
  
  //普通圖片上傳
  var uploadInst = upload.render({
    elem: '#test1'
    ,url: '/upload/'
    ,before: function(obj){
      //預讀本地檔案示例,不支援ie8
      obj.preview(function(index, file, result){
        $('#demo1').attr('src', result); //圖片連結(base64)
      });
    }
    ,done: function(res){
      //如果上傳失敗
      if(res.code > 0){
        return layer.msg('上傳失敗');
      }
      //上傳成功
    }
    ,error: function(){
      //演示失敗狀態,並實現重傳
      var demoText = $('#demoText');
      demoText.html('<span style="color: #FF5722;">上傳失敗</span> <a class="layui-btn layui-btn-xs demo-reload">重試</a>');
      demoText.find('.demo-reload').on('click', function(){
        uploadInst.upload();
      });
    }
  });
  
  //多圖片上傳
  upload.render({
    elem: '#test2'
    ,url: '/upload/'
    ,multiple: true
    ,before: function(obj){
      //預讀本地檔案示例,不支援ie8
      obj.preview(function(index, file, result){
        $('#demo2').append('<img src="'+ result +'" alt="'+ file.name +'" class="layui-upload-img">')
      });
    }
    ,done: function(res){
      //上傳完畢
    }
  });
  
  //指定允許上傳的檔案型別
  upload.render({
    elem: '#test3'
    ,url: '/upload/'
    ,accept: 'file' //普通檔案
    ,done: function(res){
      console.log(res)
    }
  });
  upload.render({ //允許上傳的檔案字尾
    elem: '#test4'
    ,url: '/upload/'
    ,accept: 'file' //普通檔案
    ,exts: 'zip|rar|7z' //只允許上傳壓縮檔案
    ,done: function(res){
      console.log(res)
    }
  });
  upload.render({
    elem: '#test5'
    ,url: '/upload/'
    ,accept: 'video' //視訊
    ,done: function(res){
      console.log(res)
    }
  });
  upload.render({
    elem: '#test6'
    ,url: '/upload/'
    ,accept: 'audio' //音訊
    ,done: function(res){
      console.log(res)
    }
  });
  
  //設定檔案大小限制
  upload.render({
    elem: '#test7'
    ,url: '/upload/'
    ,size: 60 //限制檔案大小,單位 KB
    ,done: function(res){
      console.log(res)
    }
  });
  
  //同時繫結多個元素,並將屬性設定在元素上
  upload.render({
    elem: '.demoMore'
    ,before: function(){
      layer.tips('介面地址:'+ this.url, this.item, {tips: 1});
    }
    ,done: function(res, index, upload){
      var item = this.item;
      console.log(item); //獲取當前觸發上傳的元素,layui 2.1.0 新增
    }
  })
  
  //選完檔案後不自動上傳
  upload.render({
    elem: '#test8'
    ,url: '/upload/'
    ,auto: false
    //,multiple: true
    ,bindAction: '#test9'
    ,done: function(res){
      console.log(res)
    }
  });
  
  //拖拽上傳
  upload.render({
    elem: '#test10'
    ,url: '/upload/'
    ,done: function(res){
      console.log(res)
    }
  });
  
  //多檔案列表示例
  var demoListView = $('#demoList')
  ,uploadListIns = upload.render({
    elem: '#testList'
    ,url: '/upload/'
    ,accept: 'file'
    ,multiple: true
    ,auto: false
    ,bindAction: '#testListAction'
    ,choose: function(obj){   
      var files = this.files = obj.pushFile(); //將每次選擇的檔案追加到檔案佇列
      //讀取本地檔案
      obj.preview(function(index, file, result){
        var tr = $(['<tr id="upload-'+ index +'">'
          ,'<td>'+ file.name +'</td>'
          ,'<td>'+ (file.size/1014).toFixed(1) +'kb</td>'
          ,'<td>等待上傳</td>'
          ,'<td>'
            ,'<button class="layui-btn layui-btn-xs demo-reload layui-hide">重傳</button>'
            ,'<button class="layui-btn layui-btn-xs layui-btn-danger demo-delete">刪除</button>'
          ,'</td>'
        ,'</tr>'].join(''));
        
        //單個重傳
        tr.find('.demo-reload').on('click', function(){
          obj.upload(index, file);
        });
        
        //刪除
        tr.find('.demo-delete').on('click', function(){
          delete files[index]; //刪除對應的檔案
          tr.remove();
          uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值,以免刪除後出現同名檔案不可選
        });
        
        demoListView.append(tr);
      });
    }
    ,done: function(res, index, upload){
      if(res.code == 0){ //上傳成功
        var tr = demoListView.find('tr#upload-'+ index)
        ,tds = tr.children();
        tds.eq(2).html('<span style="color: #5FB878;">上傳成功</span>');
        tds.eq(3).html(''); //清空操作
        return delete this.files[index]; //刪除檔案佇列已經上傳成功的檔案
      }
      this.error(index, upload);
    }
    ,error: function(index, upload){
      var tr = demoListView.find('tr#upload-'+ index)
      ,tds = tr.children();
      tds.eq(2).html('<span style="color: #FF5722;">上傳失敗</span>');
      tds.eq(3).find('.demo-reload').removeClass('layui-hide'); //顯示重傳
    }
  });
  
  //繫結原始檔案域
  upload.render({
    elem: '#test20'
    ,url: '/upload/'
    ,done: function(res){
      console.log(res)
    }
  });
  
});
</script>

</body>
</html>

注意:目前暫不支援批量上傳(即同時上傳多個),但支援新增多個檔案(即一個一個上傳)

效果圖: