連接到來自java的https網址

Question

如何使用Java連接到URL？我正在尋找從https網站獲取內容。

Answer 1

我希望這會有所幫助。 不要忘了URLEncode您的URL。要查看您的特定請求的標題應該是什麼樣子，您可以使用Firefox的Firebug擴展。

String url=YOUR_URL; 
String message=YOUR_REQUEST_HEADER 

SocketFactory sslSocketFactory = SSLSocketFactory.getDefault(); 
String response = ""; 
try { 
URL url = new URL(url); 
Socket socket = sslSocketFactory.createSocket(url.getHost(),  url.getPort()==-1?443:url.getPort()); 

PrintWriter toServer = new PrintWriter(socket.getOutputStream()); 
toServer.println(message); 
toServer.flush(); 

BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream(), "UTF8")); 

char[] buf = new char[4096]; 
int bytesRead; 
while((bytesRead = in.read(buf)) != -1){ 
response = response + new String(buf).substring(0, bytesRead); 
} 

in.close(); 
socket.close(); 

} catch (MalformedURLException e) { 
e.printStackTrace(); 
} catch (IOException e){ 
e.printStackTrace(); 
}