Spring Cloud Feign接口返回流的实现

服务提供者

@GetMapping("/{id}")
  public void queryJobInfoLogDetail(@PathVariable("id") Long id, HttpServletResponse response) {

    File file = new File("xxxxx");
    InputStream fileInputStream = new FileInputStream(file);
    OutputStream outStream;
    try {
      outStream = response.getOutputStream();

      byte[] bytes = new byte[1024];
      int len = 0;
      while ((len = fileInputStream.read(bytes)) != -1) {
        outStream.write(bytes, 0, len);
      }
      fileInputStream.close();
      outStream.close();
      outStream.flush();
    } catch (IOException e) {
      log.error("exception", e);
    }
  }

client 客户端

@GetMapping(value = "/{id}", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE)
  feign.Response queryJobInfoLogDetail(@PathVariable("id") Long id);

服务消费者

  @GetMapping("/{id}")
  public void queryJobInfoLogInfoList(@PathVariable("id") Long id, HttpServletResponse servletResponse) {

    Response response = apiServices.queryJobInfoLogDetail(id);
    Response.Body body = response.body();

    InputStream fileInputStream = null;
    OutputStream outStream;
    try {
      fileInputStream = body.asInputStream();
      outStream = servletResponse.getOutputStream();

      byte[] bytes = new byte[1024];
      int len = 0;
      while ((len = fileInputStream.read(bytes)) != -1) {
        outStream.write(bytes, 0, len);
      }
      fileInputStream.close();
      outStream.close();
      outStream.flush();
    } catch (Exception e) {

    }
  }

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