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;
    }