con.write(req.toString());
String header = con.readStringByDelimiter("\r\n\r\n") + "\r\n";
int contentLength = QAUtil.readContentLength(header);
String body = con.readStringByLength(contentLength);
Assert.assertTrue(header.indexOf("200") != -1);
Assert.assertEquals("test123456", body);
Assert.assertTrue(header.indexOf("X-Received") != -1);