Javascript 在模式弹出窗口中上载文件后清除文件内容
当通过Ajax上传文件时，我在清除文件内容方面遇到了一些问题。下面是我的模式弹出式html代码，Javascript 在模式弹出窗口中上载文件后清除文件内容,javascript,php,ajax,Javascript,Php,Ajax,当通过Ajax上传文件时，我在清除文件内容方面遇到了一些问题。下面是我的模式弹出式html代码， <div class="modal-header bg-blue"> <div class="desktop_view"> <button type="button" class="close" data-dismiss="modal">×<
<div class="modal-header bg-blue">
<div class="desktop_view">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
<div class="mobile_view">
<button type="button" class="btn btn-default btn-xs pull-right bold" data-dismiss="modal">Close</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
</div>
<div class="modal-body">
<div class="upload-container">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<div class="row">
<div class="form-group fileinput-button">
<label class="col-lg-6 col-md-6 col-sm-6 col-xs-12 control-label">Select Your Document:</label>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12"><input type="file" multiple name="file[]" accept="image/*" id="files" ></div>
</div>
</div>
</div>
</div>
<div class="clearfix"></div>
<div class="preview-container">
<div class="col-lg-12">
<div class="clearfix"></div>
<div id="dvPreview" class="preview-container"></div>
</div>
</div>
</div>
<div class="modal-footer">
<input type="submit" value="Upload" class = "btn btn-info" id= "save" />
<button type="button" class="btn btn-danger myclose" data-dismiss="modal">Close</button>
</div>
</form>
</div>
</div>
它不起作用。请提供解决方案 为表单提供id并调用表单重置函数，如下所示：
<div class="modal-header bg-blue">
<div class="desktop_view">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
<div class="mobile_view">
<button type="button" class="btn btn-default btn-xs pull-right bold" data-dismiss="modal">Close</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
</div>
<div class="modal-body">
<div class="upload-container">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<div class="row">
<div class="form-group fileinput-button">
<label class="col-lg-6 col-md-6 col-sm-6 col-xs-12 control-label">Select Your Document:</label>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12"><input type="file" multiple name="file[]" accept="image/*" id="files" ></div>
</div>
</div>
</div>
</div>
<div class="clearfix"></div>
<div class="preview-container">
<div class="col-lg-12">
<div class="clearfix"></div>
<div id="dvPreview" class="preview-container"></div>
</div>
</div>
</div>
<div class="modal-footer">
<input type="submit" value="Upload" class = "btn btn-info" id= "save" />
<button type="button" class="btn btn-danger myclose" data-dismiss="modal">Close</button>
</div>
</form>
</div>
</div>
$("#formId")[0].reset()
// or
$("#formId").get(0).reset()
<div class="modal-header bg-blue">
<div class="desktop_view">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
<div class="mobile_view">
<button type="button" class="btn btn-default btn-xs pull-right bold" data-dismiss="modal">Close</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
</div>
<div class="modal-body">
<div class="upload-container">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<div class="row">
<div class="form-group fileinput-button">
<label class="col-lg-6 col-md-6 col-sm-6 col-xs-12 control-label">Select Your Document:</label>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12"><input type="file" multiple name="file[]" accept="image/*" id="files" ></div>
</div>
</div>
</div>
</div>
<div class="clearfix"></div>
<div class="preview-container">
<div class="col-lg-12">
<div class="clearfix"></div>
<div id="dvPreview" class="preview-container"></div>
</div>
</div>
</div>
<div class="modal-footer">
<input type="submit" value="Upload" class = "btn btn-info" id= "save" />
<button type="button" class="btn btn-danger myclose" data-dismiss="modal">Close</button>
</div>
</form>
</div>
</div>
document.getElementById('formId').reset();
<div class="modal-header bg-blue">
<div class="desktop_view">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
<div class="mobile_view">
<button type="button" class="btn btn-default btn-xs pull-right bold" data-dismiss="modal">Close</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
</div>
<div class="modal-body">
<div class="upload-container">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<div class="row">
<div class="form-group fileinput-button">
<label class="col-lg-6 col-md-6 col-sm-6 col-xs-12 control-label">Select Your Document:</label>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12"><input type="file" multiple name="file[]" accept="image/*" id="files" ></div>
</div>
</div>
</div>
</div>
<div class="clearfix"></div>
<div class="preview-container">
<div class="col-lg-12">
<div class="clearfix"></div>
<div id="dvPreview" class="preview-container"></div>
</div>
</div>
</div>
<div class="modal-footer">
<input type="submit" value="Upload" class = "btn btn-info" id= "save" />
<button type="button" class="btn btn-danger myclose" data-dismiss="modal">Close</button>
</div>
</form>
</div>
</div>
$('#div_id input[type="text"]').val('');
$('#div_id input[type="file"]').val('');
<div class="modal-header bg-blue">
<div class="desktop_view">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
<div class="mobile_view">
<button type="button" class="btn btn-default btn-xs pull-right bold" data-dismiss="modal">Close</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
</div>
<div class="modal-body">
<div class="upload-container">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<div class="row">
<div class="form-group fileinput-button">
<label class="col-lg-6 col-md-6 col-sm-6 col-xs-12 control-label">Select Your Document:</label>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12"><input type="file" multiple name="file[]" accept="image/*" id="files" ></div>
</div>
</div>
</div>
</div>
<div class="clearfix"></div>
<div class="preview-container">
<div class="col-lg-12">
<div class="clearfix"></div>
<div id="dvPreview" class="preview-container"></div>
</div>
</div>
</div>
<div class="modal-footer">
<input type="submit" value="Upload" class = "btn btn-info" id= "save" />
<button type="button" class="btn btn-danger myclose" data-dismiss="modal">Close</button>
</div>
</form>
</div>
</div>
JS中的那些div在您提供的HTML中不存在。要清除哪些div？只需在通过ajax上传数据后重新加载页面即可。或者更复杂的是，您需要使用jquery代码，比如示例remove元素。你更喜欢哪一个？我更喜欢jquery代码来删除元素如果我上传一个图像，数组将类似于tis，array（[0]=>Lighthouse.jpg），如果我再次上传一个图像，前面的图像就存在了array（[0]=>Lighthouse.jpg[1]=>Tulips.jpg）
<div class="modal-header bg-blue">
<div class="desktop_view">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
<div class="mobile_view">
<button type="button" class="btn btn-default btn-xs pull-right bold" data-dismiss="modal">Close</button>
<h4 class="modal-title"id="myModalLabel">Upload Document</h4>
</div>
</div>
<div class="modal-body">
<div class="upload-container">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<div class="row">
<div class="form-group fileinput-button">
<label class="col-lg-6 col-md-6 col-sm-6 col-xs-12 control-label">Select Your Document:</label>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12"><input type="file" multiple name="file[]" accept="image/*" id="files" ></div>
</div>
</div>
</div>
</div>
<div class="clearfix"></div>
<div class="preview-container">
<div class="col-lg-12">
<div class="clearfix"></div>
<div id="dvPreview" class="preview-container"></div>
</div>
</div>
</div>
<div class="modal-footer">
<input type="submit" value="Upload" class = "btn btn-info" id= "save" />
<button type="button" class="btn btn-danger myclose" data-dismiss="modal">Close</button>
</div>
</form>
</div>
</div>