HttpClient get请求获取数据流

HttpClient get请求获取数据流，将数据保存为文件

 public String getStreamFile(String url) throws Exception {
         HttpClient client = HttpClientUtils.createSSLInsecureClient();
         HttpGet get = new HttpGet(url);
         HttpResponse response = client.execute(get);
 //        获取消息头
 //        Header[] headers = response.getAllHeaders();
 //        for (Header header : headers) {
 //            System.out.println(MessageFormat.format("header:{0}={1}", header.getName(), header.getValue()));
 //        }
         String fileName = response.getHeaders("Content-Disposition")[0].getValue().split("filename=")[1];
         logger.info("文件名为" + fileName);

         if (response.getStatusLine().getStatusCode() == 200) {
             //得到实体
             HttpEntity entity = response.getEntity();
             byte[] data = EntityUtils.toByteArray(entity);
             //存入磁盘
             FileOutputStream fos = new FileOutputStream(fileName);
             fos.write(data);
             fos.close();
             logger.info("文件下载成功！");
         } else {
             throw new Exception("文件下载失败！Http状态码为" + response.getStatusLine().getStatusCode());
         }
         return fileName;
     }