android - 使用代理的 HttpsUrlConnection

Question

我有一个使用 HttpsUrlConnection 执行 POST 请求的代码，该代码工作正常，但我的一些用户拥有带有封闭用户组的 SIM 卡，他们需要在他们的 apn 设置中设置代理。如果他们设置代理，我需要修改我的代码。我试过这个:

    HttpsURLConnection connection = null;
    DataOutputStream outputStream = null;
    DataInputStream inputStream = null;
    String urlServer = "https://xxx";
    String boundary = "*****";

try {

    URL url = new URL(urlServer);
    SocketAddress sa = new InetSocketAddress("[MY PROXY HOST]",[My PROXY PORT]);
    Proxy mProxy = new Proxy(Proxy.Type.HTTP, sa);

    connection.setDoInput(true);
    connection.setDoOutput(true);
    connection.setUseCaches(false);
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Connection", "Keep-Alive");
    connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;boundary=" + boundary);

    //this is supposed to open the connection via proxy
    //if i use url.openConnection() instead, the code works
    connection = (HttpsURLConnection) url.openConnection(mProxy);

    //the following line will fail
    outputStream = new DataOutputStream(connection.getOutputStream());

    // [...] 

} catch (Exception ex) {
   ret = ex.getMessage();
}

现在我收到错误:

javax.net.ssl.SSLException: Connection closed by peer

如果我在 apn 中使用 url.OpenConnection() wuithout Proxy 和 Proxysettings，代码可以工作，可能是什么问题？

Answer 1

您可以尝试这种注册代理服务器的替代方法:

Properties systemSettings=System.getProperties();

systemSettings.put("http.proxyHost", "your.proxy.host.here");
systemSettings.put("http.proxyPort", "8080"); // use actual proxy port