String url = "https://api.polyv.net/v2/video/upload-image-in-position";
String userid = "xxxxxxx";
String vid = "xxxxxxxxxxxxxxxxxxxx";
int position = 10;
String secretkey = "xxxxxxx";
long ptime = System.currentTimeMillis();
Map<String, String> params = new HashMap<>();
params.put("position", String.valueOf(position));
params.put("ptime", String.valueOf(ptime));
params.put("userid", userid);
params.put("vid", "xxx");
params.put("sign", getSign(params, secretkey));
String content = HttpClientUtil.getInstance().sendHttpPost(url, params);
System.out.println(content);