我編寫FTPS服務器,並且我在AUTH TLS命令後有ssl連接問題。 簡單的例子:連接到FTPS服務器
try
{
int ServerPort = 21;
ServerSocket FtpExServer = new ServerSocket(ServerPort);
while(true)
{
Socket S = FtpExServer.accept();
InputStreamReader ISR = new InputStreamReader(S.getInputStream());
OutputStreamWriter OSW = new OutputStreamWriter(S.getOutputStream());
BufferedReader ClientSocketReader = new BufferedReader(ISR);
PrintWriter ClientSocketWriter = new PrintWriter(OSW, true);
ClientSocketWriter.println("220 Welcome to FTP server.");
print(ClientSocketReader.readLine());
ClientSocketWriter.println("234 AUTH TLS successful");
char[] passphrase = "pass".toCharArray();
char[] cpassphrase = "cpass".toCharArray();
KeyStore keystore = KeyStore.getInstance("JKS");
keystore.load(new FileInputStream("keystore.jks"), passphrase);
KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
kmf.init(keystore, cpassphrase);
SSLContext context = SSLContext.getInstance("TLS");
KeyManager[] keyManagers = kmf.getKeyManagers();
context.init(keyManagers, null, null);
SSLServerSocketFactory ssf = context.getServerSocketFactory();
SSLServerSocket ss = (SSLServerSocket) ssf.createServerSocket(990);
ss.setSoTimeout(2000);
SSLSocket s = (SSLSocket)ss.accept();
ISR = new InputStreamReader(s.getInputStream());
OSW = new OutputStreamWriter(s.getOutputStream());
ClientSocketReader = new BufferedReader(ISR);
ClientSocketWriter = new PrintWriter(OSW, true);
ClientSocketWriter.println("234 AUTH TLS successful");
print(ClientSocketReader.readLine());
ClientSocketWriter.println("331 Password required for smie");
print(ClientSocketReader.readLine());
ClientSocketWriter.println("230 User smie logged in");
print(ClientSocketReader.readLine());
ClientSocketWriter.println("215 UNIX Type: L8");
print(ClientSocketReader.readLine());
ClientSocketWriter.println("550 Command not suported.");
}
}
catch(Exception e)
{
print(e);
}
描述:FTP客戶端(例如MoveITFreely)連接到服務器的端口21發送命令 「AUTH TLS」 之後,服務器發送 「234 AUTH TLS成功」。現在客戶端必須連接到端口990(?)上的服務器,但客戶端不連接並且獲取超時異常。
我做錯了什麼?
謝謝信息!告訴我如何從現有的Socket創建SSL連接? – smie
@ user857923請參閱SSLSocketFactory.createSocket()方法(http://download.oracle.com/javase/1.4.2/docs/api/javax/net/ssl/SSLSocketFactory.html#createSocket(java.net.Socket,%) 20java.lang.String,%20int,%20boolean) –
它的幫助!感謝Zenya! – smie