实现上传文件但隐藏选择文件的文字详解编程语言

<span tabindex="0" class="ant-upload" role="button"> 
                    <input type="file" accept="" style="display: none;" id="clueImgInput" onchange="uploadClueImg()"> 
                    <a href="javascript:void(0)" id="clueImgUploadButton" class="btn-normal"> 
                        <span>上传图片</span> 
                    </a>
 
                </span>

$("#clueImgUploadButton").click(function () { 
        $("#clueImgInput").click(); 
    });

function uploadClueImg() { 
    var file_obj = document.getElementById('clueImgInput').files[0]; 
    var fd = new FormData(); 
    fd.append('file', file_obj); 
    $.ajax({ 
        type: 'post', 
        url: "uploadClueImg", 
        data: fd, 
        cache: false, 
        processData: false, 
        contentType: false, 
    }).success(function (data) { 
        if (data.code === 107){ 
            //上传成功 
            var url = data.data; 
            $(".add-picture-win img").attr('src',''); 
            $(".add-picture-win img").attr('src',url); 
        } 
    }).error(function () { 
 
    }); 
}

/** 
     * 上传文件 
     * @param file 
     */ 
    public static void uploadFile(String resourceName, MultipartFile file, String dataUrl){ 
        String filePath = dataUrl+resourceName+".xls"; 
        // 保存文件 
        File tempSaveFile = new File(filePath); 
//        if (tempSaveFile.exists()){ 
//            tempSaveFile.delete(); 
//        } 
        if (!file.isEmpty()) { 
            BufferedOutputStream out; 
            try { 
                out = new BufferedOutputStream(new FileOutputStream(tempSaveFile)); 
                out.write(file.getBytes()); 
                out.flush(); 
                out.close(); 
            } catch (FileNotFoundException e) { 
                e.printStackTrace(); 
            } catch (IOException e) { 
                e.printStackTrace(); 
            } 
        } 
    }