수 없습니다

Question

, 그것은 다음과 같은 예외 난을 실행할 때 코드는, 그러나, 내 노트북에서 작동

javax.mail.NoSuchProviderException: No provider for pop3s 
    at javax.mail.Session.getProvider(Session.java:455) 
    at javax.mail.Session.getStore(Session.java:530) 
    at javax.mail.Session.getStore(Session.java:510) 
    at com.core.mail.ReceiveMail.<init>(ReceiveMail.java:31) 
    at com.core.mail.ReceiveMail.main(ReceiveMail.java:57) 

에게주고 자바 프로그램을 사용하여 Gmail의 메일을 가져올 수 없습니다 회사의 코드, 위의 오류가 발생했습니다.

미리 감사드립니다.

Answer 1

public static void check(String host, String storeType, String user,String password) 
{ 
    try { 

     //create properties field 
     Properties properties = new Properties(); 

     properties.put("mail.pop3.host", host); 
     properties.put("mail.pop3.port", "995"); 
     properties.put("mail.pop3.starttls.enable", "true"); 
     Session emailSession = Session.getDefaultInstance(properties); 

     //create the POP3 store object and connect with the pop server 
     Store store = emailSession.getStore("pop3s"); 

     store.connect(host, user, password); 

     //create the folder object and open it 
     Folder emailFolder = store.getFolder("INBOX"); 
     emailFolder.open(Folder.READ_ONLY); 

     // retrieve the messages from the folder in an array and print it 
     Message[] messages = emailFolder.getMessages(); 
     System.out.println("messages.length---" + messages.length); 

     for (int i = 0, n = messages.length; i < n; i++) { 
      Message message = messages[i]; 
      System.out.println("---------------------------------"); 
      System.out.println("Email Number " + (i + 1)); 
      System.out.println("Subject: " + message.getSubject()); 
      System.out.println("From: " + message.getFrom()[0]); 
      System.out.println("Text: " + message.getContent().toString()); 

     } 

     //close the store and folder objects 
     emailFolder.close(false); 
     store.close(); 

    } catch (NoSuchProviderException e) { 
     e.printStackTrace(); 
    } catch (MessagingException e) { 
     e.printStackTrace(); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
}