URL への https 接続を試みています。この例外が発生しています
例外: 接続済み
Java を介して安全な接続を作成する方法がわかりません。誰でもこれで私を助けることができますか?
これが私のコードです。
public static String getCon() {
String result="",cookie="";
System.setProperty("java.protocol.handler.pkgs", "com.sun.net.ssl.internal.www.protocol");
java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
try {
URL url= new URL("https://jazz.net/");
HttpsURLConnection connection= (HttpsURLConnection) url.openConnection();
String cookieHeader = connection.getHeaderField("set-cookie");
if (cookieHeader != null) {
int index = cookieHeader.indexOf(";");
if (index >= 0)
cookie = cookieHeader.substring(0, index);
connection.setRequestProperty("Cookie", cookie);
}connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setFollowRedirects(false);
connection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
connection.setRequestProperty("Accept", "application/xml");
connection.setRequestProperty("User-Agent", "yes");
DataInputStream input = new DataInputStream( connection.getInputStream() );
StringBuffer buf= new StringBuffer();
// read in each character until end-of-stream is detected
for( int c = input.read(); c != -1; c = input.read() )
buf.append(c);
input.close();
result=buf.toString();
} catch (Exception e) {
// TODO Auto-generated catch block
return result+" exception "+e.getMessage();
}
return result;
}