如何使用jax rs同步后方法响应

Question

我编写了Web服务，用于从支付网关读取json格式的响应，并将该响应发送到DB。在这里，我面临着如何使用JAX-RS同步付款响应的问题。

Path("/userService")
@POST
@Consumes(MediaType.APPLICATION_JSON)

public synchronized void getUserDetails(InputStream incomingData,@Suspended final AsyncResponse asyncResponse) throws JSONException {

    StringBuilder crunchifyBuilder = new StringBuilder();
    try {
            BufferedReader in = new BufferedReader(new  InputStreamReader(incomingData));
            String line = null;
            while ((line = in.readLine()) != null) {
                crunchifyBuilder.append(line);
        }
        } catch (Exception e) {
            System.out.println("Error Parsing: - ");
        }

           new Thread(new Runnable() {  

    public void  run() {        
        PostingAckresponse1=sendDataToDB(crunchifyBuilder);
                        asyncResponse.resume(response);

                }
             }.start();

}