http://markusslima.github.io/bootstrap-filestyle/

$(":file").filestyle();

OR

<input type="file" class="filestyle" data-input="false">

我修改了@claviska的答案，并按照我喜欢的方式工作(Bootstrap 3,4未测试):

<label class="btn btn-default">
    <span>Browse</span>
    <input type="file" style="display: none;" onchange="$(this).prev('span').text($(this).val()!=''?$(this).val():'Browse')">
</label>

尝试遵循Bootstrap v.3.3.4

<div>
    <input id="uplFile" type="file" style="display: none;">

    <div class="input-group" style="width: 300px;">
        <div  id="btnBrowse"  class="btn btn-default input-group-addon">Select a file...</div>
        <span id="photoCover" class="form-control">
    </div>
</div>

<script type="text/javascript">
    $('#uplFile').change(function() {
        $('#photoCover').text($(this).val());
    });

    $('#btnBrowse').click(function(){
        $('#uplFile').click();
    });
</script>

我也有同样的问题，我是这样尝试的。

<div>
<button type='button' class='btn btn-info btn-file'>Browse</button>
<input type='file' name='image'/>
</div>

CSS

<style>
.btn-file {
    position:absolute;
}
</style>

JS的

<script>
$(document).ready(function(){
    $('.btn-file').click(function(){
        $('input[name="image"]').click();
    });
});
</script>

注意: 按钮.btn-file必须在与输入文件相同的标签中

希望你找到了最好的解决方案…

这对我来说非常合适

<span>
    <input  type="file" 
            style="visibility:hidden; width: 1px;" 
            id='${multipartFilePath}' name='${multipartFilePath}'  
            onchange="$(this).parent().find('span').html($(this).val().replace('C:\\fakepath\\', ''))"  /> <!-- Chrome security returns 'C:\fakepath\'  -->
    <input class="btn btn-primary" type="button" value="Upload File.." onclick="$(this).parent().find('input[type=file]').click();"/> <!-- on button click fire the file click event -->
    &nbsp;
    <span  class="badge badge-important" ></span>
</span>

我已经创建了一个自定义上传按钮，只接受图像，这可以根据您的要求修改。

希望这能有所帮助!!：）

(已使用的Bootstrap框架)

代码笔链接

HTML

<center>
 <br />
 <br />
 <span class="head">Upload Button Re-Imagined</span>
 <br />
 <br />
 <div class="fileUpload blue-btn btn width100">
   <span>Upload your Organizations logo</span>
   <input type="file" class="uploadlogo" />
 </div>
</center>

CSS

 .head {
   font-size: 25px;
   font-weight: 200;
 }

 .blue-btn:hover,
 .blue-btn:active,
 .blue-btn:focus,
 .blue-btn {
   background: transparent;
   border: solid 1px #27a9e0;
   border-radius: 3px;
   color: #27a9e0;
   font-size: 16px;
   margin-bottom: 20px;
   outline: none !important;
   padding: 10px 20px;
 }

 .fileUpload {
   position: relative;
   overflow: hidden;
   height: 43px;
   margin-top: 0;
 }

 .fileUpload input.uploadlogo {
   position: absolute;
   top: 0;
   right: 0;
   margin: 0;
   padding: 0;
   font-size: 20px;
   cursor: pointer;
   opacity: 0;
   filter: alpha(opacity=0);
   width: 100%;
   height: 42px;
 }


 /*Chrome fix*/

 input::-webkit-file-upload-button {
   cursor: pointer !important;
 }

JS

// You can modify the upload files to pdf's, docs etc
//Currently it will upload only images
$(document).ready(function($) {

  // Upload btn
  $(".uploadlogo").change(function() {
    readURL(this);
  });

  function readURL(input) {
    var url = input.value;
    var ext = url.substring(url.lastIndexOf('.') + 1).toLowerCase();
    if (input.files && input.files[0] && (ext == "png" || ext == "jpeg" || ext == "jpg" || ext == "gif" || ext == "svg")) {
      var path = $('.uploadlogo').val();
      var filename = path.replace(/^.*\\/, "");
      $('.fileUpload span').html('Uploaded logo : ' + filename);
      // console.log(filename);
    } else {
      $(".uploadlogo").val("");
      $('.fileUpload span').html('Only Images Are Allowed!');
    }
  }
});