HttpUrlConnection redirection does not use request properties of orginial connection

问题

Setting properties of a connection do not carry forward to redirected connections

HttpURLConnection mConnection = (HttpURLConnection) url.openConnection();
mConnection = addRequestProperty("User-Agent", "Mozilla");

InputStream stream = mConnection.getInputStream();

if there is a 302 code, mConnection is redirected, but the user-agent is "Java/1.5.0_28".

Any suggestion how to handle this?

回答1:

It didn't change, it started out that way.

addRequestProperty() won't override the default. Use setRequestProperty() instead.

HttpURLConnection mConnection = (HttpURLConnection) url.openConnection();
mConnection.setRequestProperty("User-Agent", "Mozilla");

来源：https://stackoverflow.com/questions/5773800/httpurlconnection-redirection-does-not-use-request-properties-of-orginial-connec