如何测试我的应用程序是否可以连接到 https 并在其他情况下回退到 http？

Question

我使用 Java HttpURLConnection 连接我的服务器：

HttpURLConnection connection = null;
try {
  connection = (HttpURLConnection) urlObj.openConnection();
} catch (IOException e) {
  logger.severe("ConnectionImpl - request(): IOException e: "+e.getMessage());
  e.printStackTrace();
}
connection.setDoInput(true);
connection.setRequestMethod("GET");
try {
    connection.connect(); 
  } catch (IOException e) {
    logger.severe("ConnectionImpl - request(): IOException e: "+e.getMessage());
    e.printStackTrace();
}
int statusCode = connection.getResponseCode();

我如何测试我的应用程序是否可以连接 https 并在连接失败时返回到 http？

Answer 1

您可以通过检查状态代码来做到这一点，如下所示：

int statusCode = connection.getResponseCode();
if(statusCode==200){
Log.d("Connection Status","Can connect");
}
else{
Log.d("Connection Status","Can't connect");
}

或

if(statusCode == HttpURLConnection.HTTP_OK){
    Log.d("Connection Status","Can connect");
    }
    else{
    Log.d("Connection Status","Can't connect");
    }

如何测试我的应用程序是否可以连接到 https 并在其他情况下回退到 http？

How to test if my app can connect with https and fallback to http otherwise?

java

https

android

http

httpurlconnection