模拟post请求，参数类型为MultipartFile[]，该怎么做？

现在有这样一个情况，就是我需要待用第三方的接口，传多个文件，类型为MultipartFile[]。我怎么把这个文件数组放到请求中呢？

用MultipartEntity
具体代码：https://blog.csdn.net/Just_szl/article/details/7659347

   用org.apache.http相关jar包，一般就是httoclient,httpcore,httpmime这三个
        CloseableHttpClient httpClient = null;
    CloseableHttpResponse response = null;
            httpClient = HttpClients.createDefault();
             HttpPost httpPost = new HttpPost("你的上传地址");
            FileBody bin = new FileBody(new File("你文件路径"));
            HttpEntity reqEntity = MultipartEntityBuilder.create().addPart("file", bin).build()；//多个文件就多个part
            httpPost.setEntity(reqEntity);