Content-Length分隔邮件正文的过早结束（预期：3233986;收到：0）

Question

HttpWithEntity requestEntity = new HttpWithEntity(endPointUrl);
requestEntity.addHeader("Cookie", "session_id=" + session.getSessionId());
requestEntity.setMethod("PUT");
StringEntity rse = new StringEntity("{}");
rse.setContentType("application/json; charset=UTF-8");
requestEntity.setEntity(rse);
CloseableHttpResponse closeableResponse = closableHttpClient.execute();

我在执行上面显示的代码时遇到了“Content-Length delimited message body的早期结束（期望：3233986;收到：0）”异常。如果设置StringEntity有任何错误。请帮助我，提前谢谢。