java如何使用ssl連接qq郵箱

Gmail目前已經啟用了POP3和SMTP服務，與其他郵箱不同的是Gmail提供的POP3和SMTP是使用安全套接字層SSL的，因此常規的JavaMail程序是無法收發郵件的，下面是使用JavaMail如何收取Gmail郵件以及發送郵件的代碼：

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1.?[代碼]GmailFetch.java?????跳至?[1]?[2]?[全屏預覽]

01????package?lius.javamail.ssl;????

02?????????

03????import?java.io.UnsupportedEncodingException;????

04????import?java.security.*;????

05????import?java.util.Properties;????

06????import?javax.mail.*;????

07????import?javax.mail.internet.InternetAddress;????

08????import?javax.mail.internet.MimeUtility;????

09?????????

10????/**????

11?????*?用于收取Gmail郵件????

12?????*?@author?Winter?Lau????

13?????*/????

14????public?class?GmailFetch?{????

15??????????

16?????public?static?void?main(String?argv[])?throws?Exception?{????

17?????????

18??????Security.addProvider(new?com.sun.net.ssl.internal.ssl.Provider());????

19??????final?String?SSL_FACTORY?=?"javax.net.ssl.SSLSocketFactory";????

20?????????

21??????//?Get?a?Properties?object????

22??????Properties?props?=?System.getProperties();????

23??????props.setProperty("mail.pop3.socketFactory.class",?SSL_FACTORY);????

24??????props.setProperty("mail.pop3.socketFactory.fallback",?"false");????

25??????props.setProperty("mail.pop3.port",?"995");????

26??????props.setProperty("mail.pop3.socketFactory.port",?"995");????

27?????????

28??????//以下步驟跟一般的JavaMail操作相同????

29??????Session?session?=?Session.getDefaultInstance(props,null);????

30?????????

31??????//請將紅色部分對應替換成你的郵箱帳號和密碼????

32??????URLName?urln?=?new?URLName("pop3","pop.gmail.com",995,null,????

33????????"[郵箱帳號]",?"[郵箱密碼]");????

34??????Store?store?=?session.getStore(urln);????

35??????Folder?inbox?=?null;????

36??????try?{????

37???????store.connect();????

38???????inbox?=?store.getFolder("INBOX");????

39???????inbox.open(Folder.READ_ONLY);????

40???????FetchProfile?profile?=?new?FetchProfile();????

41???????profile.add(FetchProfile.Item.ENVELOPE);????

42???????Message[]?messages?=?inbox.getMessages();????

43???????inbox.fetch(messages,?profile);????

44???????System.out.println("收件箱的郵件數："?+?messages.length);????

45???????for?(int?i?=?0;?i??messages.length;?i++)?{????

46????????//郵件發送者????

47????????String?from?=?decodeText(messages[i].getFrom()[0].toString());????

48????????InternetAddress?ia?=?new?InternetAddress(from);????

49????????System.out.println("FROM:"?+?ia.getPersonal()+'('+ia.getAddress()+')');????

50????????//郵件標題????

51????????System.out.println("TITLE:"?+?messages[i].getSubject());????

52????????//郵件大小????

53????????System.out.println("SIZE:"?+?messages[i].getSize());????

54????????//郵件發送時間????

55????????System.out.println("DATE:"?+?messages[i].getSentDate());????

56???????}????

57??????}?finally?{????

58???????try?{????

59????????inbox.close(false);????

60???????}?catch?(Exception?e)?{}????

61???????try?{????

62????????store.close();????

63???????}?catch?(Exception?e)?{}????

64??????}????

65?????}????

66??????????

67?????protected?static?String?decodeText(String?text)????

68???????throws?UnsupportedEncodingException?{????

69??????if?(text?==?null)????

70???????return?null;????

71??????if?(text.startsWith("=?GB")?||?text.startsWith("=?gb"))????

72???????text?=?MimeUtility.decodeText(text);????

73??????else????

74???????text?=?new?String(text.getBytes("ISO8859_1"));????

75??????return?text;????

76?????}????

77?????????

78????}????

2.?[代碼]GmailSender.java?????

01????package?lius.javamail.ssl;????

02?????????

03????import?java.security.Security;????

04????import?java.util.Date;????

05????import?java.util.Properties;????

06?????????

07????import?javax.mail.Authenticator;????

08????import?javax.mail.Message;????

09????import?javax.mail.MessagingException;????

10????import?javax.mail.PasswordAuthentication;????

11????import?javax.mail.Session;????

12????import?javax.mail.Transport;????

13????import?javax.mail.internet.AddressException;????

14????import?javax.mail.internet.InternetAddress;????

15????import?javax.mail.internet.MimeMessage;????

16?????????

17????/**????

18?????*?使用Gmail發送郵件????

19?????*?@author?Winter?Lau????

20?????*/????

21????public?class?GmailSender?{????

22?????????

23?????public?static?void?main(String[]?args)?throws?AddressException,?MessagingException?{????

24??????Security.addProvider(new?com.sun.net.ssl.internal.ssl.Provider());????

25??????final?String?SSL_FACTORY?=?"javax.net.ssl.SSLSocketFactory";????

26??????//?Get?a?Properties?object????

27??????Properties?props?=?System.getProperties();????

28??????props.setProperty("mail.smtp.host",?"smtp.gmail.com");????

29??????props.setProperty("mail.smtp.socketFactory.class",?SSL_FACTORY);????

30??????props.setProperty("mail.smtp.socketFactory.fallback",?"false");????

31??????props.setProperty("mail.smtp.port",?"465");????

32??????props.setProperty("mail.smtp.socketFactory.port",?"465");????

33??????props.put("mail.smtp.auth",?"true");????

34??????final?String?username?=?"[郵箱帳號]";????

35??????final?String?password?=?"[郵箱密碼]";????

36??????Session?session?=?Session.getDefaultInstance(props,?new?Authenticator(){????

37??????????protected?PasswordAuthentication?getPasswordAuthentication()?{????

38??????????????return?new?PasswordAuthentication(username,?password);????

39??????????}});????

40?????????

41???????????//?--?Create?a?new?message?--????

42??????Message?msg?=?new?MimeMessage(session);????

43?????????

44??????//?--?Set?the?FROM?and?TO?fields?--????

45??????msg.setFrom(new?InternetAddress(username?+?"@mo168.com"));????

46??????msg.setRecipients(Message.RecipientType.TO,????

47????????InternetAddress.parse("[收件人地址]",false));????

48??????msg.setSubject("Hello");????

49??????msg.setText("How?are?you");????

50??????msg.setSentDate(new?Date());????

51??????Transport.send(msg);????

52???????????

53??????System.out.println("Message?sent.");????

54?????}????

55????}

JAVA mail發送給多個QQ郵箱接收者時，每個QQ郵箱都收到兩份相同的郵件。

ListString?too=new?ArrayListString();

too.add("****@163.com");

// too.add("******@163.com");

InternetAddress[]?to_mail?=?new?InternetAddress[too.size()];

for?(int?i?=?0;?i??too.size();?i++)?{?//?設置接收郵件人的地址

to_mail[i]?=?new?InternetAddress(String.valueOf(too.get(i)));

}

messageHelper.setTo(to_mail);

不要用for循環 ?用internetAddress［］ ?. 我前幾天也是跟你一樣．　

如何使用Java發送qq郵件

方法:

1.前提準備工作：

首先，郵件的發送方要開啟POP3 和SMTP服務--即發送qq郵件的賬號要開啟POP3 和SMTP服務

2.開啟方法：

登陸qq郵箱

3.點擊 設置

4.點擊—-賬戶

5.找到：POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服務 —點擊開啟

6.送短信 —–點擊確定

7.稍等一會，很得到一個授權碼！ –注意：這個一定要記住，一會用到

8.點擊保存修改 —OK 完成

9.java 測試代碼：

package cn.cupcat.test;

import java.util.Properties;

import javax.mail.Message;

import javax.mail.MessagingException;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.AddressException;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import javax.mail.internet.MimeMessage.RecipientType;

public class SendmailUtil {

public static void main(String[] args) throws AddressException, MessagingException {

Properties properties = new Properties();

properties.put("mail.transport.protocol", "smtp");// 連接協議

properties.put("mail.smtp.host", "smtp.qq.com");// 主機名

properties.put("mail.smtp.port", 465);// 端口號

properties.put("mail.smtp.auth", "true");

properties.put("mail.smtp.ssl.enable", "true");//設置是否使用ssl安全連接 ---一般都使用

properties.put("mail.debug", "true");//設置是否顯示debug信息 true 會在控制臺顯示相關信息

//得到回話對象

Session session = Session.getInstance(properties);

// 獲取郵件對象

Message message = new MimeMessage(session);

//設置發件人郵箱地址

message.setFrom(new InternetAddress("123456789@qq.com"));

//設置收件人地址 message.setRecipients( RecipientType.TO, new InternetAddress[] { new InternetAddress("987654321@qq.com") });

//設置郵件標題

message.setSubject("這是第一封Java郵件");

//設置郵件內容

message.setText("內容為： 這是第一封java發送來的郵件。");

//得到郵差對象

Transport transport = session.getTransport();

//連接自己的郵箱賬戶

transport.connect("123456789@qq.com", "vvctybgbvvophjcj");//密碼為剛才得到的授權碼

//發送郵件 transport.sendMessage(message, message.getAllRecipients());

}

}

10.運行就會發出郵件了。。。。

下面是我收到郵件的截圖，當然我把源碼中的郵件地址都是修改了，不是真實的，你們測試的時候，可以修改能你們自己的郵箱。最后，祝你也能成功，如果有什么問題，可以一起討論！

注意事項

得到的授權碼一定要保存好，程序中要使用

分享名稱：java代碼接收qq郵件 java發送email
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