public byte[] post(String url,byte[] bytes) throws Exception {
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new ByteArrayEntity(bytes));
httpPost.setHeader("Content-type", "application/octet-stream;charset=UTF-8");
//这里是设置虚拟IP
String remoteIp = (int) (Math.random() * 255 + 1)+"."+(int) (Math.random() * 255 + 1)+"."+(int) (Math.random() * 255 + 1)+"."+(int) (Math.random() * 255 + 1);
httpPost.setHeader("X-Forwarded-For",remoteIp);
CloseableHttpResponse httpResponse = HttpClients.createDefault().execute(httpPost);
try {
HttpEntity entityResponse = httpResponse.getEntity();
int responseCode = httpResponse.getStatusLine().getStatusCode();
int contentLength = (int) entityResponse.getContentLength();
// OutputStream out = new By
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