Several ways to send messages in Java __java

Mail was sent in a recent project, so I studied it. To sum it up.
to send a message you need to use the Java JavaMail, Javamailapi in the details of it in
(http://blog.csdn.net/imain/article/details/1453677) There is a very detailed introduction, I directly on the code.
1: Send mail using JavaMail

 1. Create a program and mail server session object Sessions Properties props = new properties ();
 Props.setproperty ("Mail.transport.protocol", "SMTP");
 Props.setproperty ("Mail.smtp.host", "smtp.163.com");
 Props.setproperty ("Mail.smtp.port", "25");
 Specifies that validation is true Props.setproperty ("Mail.smtp.auth", "true");
 Props.setproperty ("Mail.smtp.timeout", "1000"); Verify the account number and password, the password needs to be the third party authorization Code Authenticator AUTH = new Authenticator () {public passwordauthentication Getpasswordauthenticatio
            N ({return new passwordauthentication ("*******@163.com", "*******");
 }
        };

Session session = Session.getinstance (props, auth);
2. Create a message, which is equivalent to the mail content messages = new MimeMessage (session);
Set the sender Message.setfrom (new internetaddress ("*******@163.com"));
Set send mode with receiver Message.setrecipient (MimeMessage.RecipientType.TO, new internetaddress (email));
Set up the subject Message.setsubject ("Mail send Test");

Set content message.setcontent (emailmsg, "text/html;charset=utf-8"); 3. Create transport to send mail transport.send (message);

2: I'm using the spring framework, and spring encapsulates an Easy-to-use tool class Javamailsenderimpl for sending mail, so you can use Javamailsenderimpl to deliver mail.

public class Mailservice {private static final String HOST = "smtp.163.com";
    private static final Integer PORT = 25;
    private static final String USERNAME = "*******@163.com";
    private static final String PASSWORD = "*******";
    private static final String Emailform = "*******@163.com";
    private static Javamailsenderimpl MailSender = Createmailsender (); /** * Mail Transmitter * * @return configured Tools/private static Javamailsenderimpl Createmailsender () {J
        Avamailsenderimpl sender = new Javamailsenderimpl ();
        Sender.sethost (HOST);
        Sender.setport (PORT);
        Sender.setusername (USERNAME);
        Sender.setpassword (PASSWORD);
        Sender.setdefaultencoding ("Utf-8");
        Properties P = new properties ();
        P.setproperty ("Mail.smtp.timeout", "25000");
        P.setproperty ("Mail.smtp.auth", "false");
        Sender.setjavamailproperties (P);
    return sender;
  /** * Send mail * * @param to Recipient   * @param subject Theme * @param HTML send content * @throws messagingexception exception * @throws unsupportedencodingexce Ption Exception */public static void Sendhtmlmail (string to, string subject, string html) throws Messagingexception,uns
        upportedencodingexception {MimeMessage mimemessage = Mailsender.createmimemessage ();
        Set Utf-8 or GBK encoding, otherwise the message will have garbled mimemessagehelper messagehelper = new Mimemessagehelper (MimeMessage, True, "UTF-8");
        Messagehelper.setfrom (Emailform, "system name");
        Messagehelper.setto (to);
        Messagehelper.setsubject (subject);
        Messagehelper.settext (HTML, true);
    Mailsender.send (MimeMessage); }
}

Of course this is the hard coded way. It can also be written in a resource file.

Resource file

Mailconfig.properties
#服务器
mailhost=smtp.163.com
#端口号
mailport=25
#邮箱账号
mailusername=* @163.com
#邮箱授权码
mailpassword=*******
#时间延迟
mailtimeout=25000
#发送人
mailfrom=*** @163.com

Get the contents of a resource file

public class Mailconfig {private static final String Properties_default = "Mailconfig.properties";
    public static String host;
    public static Integer port;
    public static String UserName;
    public static String PassWord;
    public static String Emailform;
    public static String timeout;
    public static String personal;
    public static properties properties;
    static{init ();
        }/** * Initialize/private static void Init () {properties = new properties ();
            try{InputStream InputStream = MailConfig.class.getClassLoader (). getResourceAsStream (Properties_default);
            Properties.load (InputStream);
            Inputstream.close ();
            Host = Properties.getproperty ("Mailhost");
            Port = Integer.parseint (Properties.getproperty ("Mailport"));
            UserName = Properties.getproperty ("Mailusername");
            PassWord = Properties.getproperty ("MailPassword"); Emailform = PropErties.getproperty ("Mailfrom");
            Timeout = Properties.getproperty ("Mailtimeout");
        Personal = "Mexican descent";
        catch (IOException e) {e.printstacktrace (); }
    }
}

Send mail

public class Mailutil {private static final String HOST = mailconfig.host;
    private static final Integer PORT = Mailconfig.port;
    private static final String USERNAME = mailconfig.username;
    private static final String PASSWORD = Mailconfig.password;
    private static final String emailform = Mailconfig.emailform;
    Private static final String timeout = mailconfig.timeout;
    Private static final String personal = mailconfig.personal;
    private static Javamailsenderimpl MailSender = Createmailsender (); /** * Mail Transmitter * * @return configured Tools/private static Javamailsenderimpl Createmailsender () {J
        Avamailsenderimpl sender = new Javamailsenderimpl ();
        Sender.sethost (HOST);
        Sender.setport (PORT);
        Sender.setusername (USERNAME);
        Sender.setpassword (PASSWORD);
        Sender.setdefaultencoding ("Utf-8");
        Properties P = new properties ();
        P.setproperty ("Mail.smtp.timeout", timeout); P.setproperTy ("Mail.smtp.auth", "false");
        Sender.setjavamailproperties (P);
    return sender; /** * Send mail * * @param to Recipient * @param subject Theme * @param HTML send content * @throws Messagi Ngexception Exception * @throws unsupportedencodingexception exception */public static void SendMail (string to, string su Bject, String html) throws Messagingexception,unsupportedencodingexception {mimemessage mimemessage = MailSender.
        Createmimemessage ();
        Set Utf-8 or GBK encoding, otherwise the message will have garbled mimemessagehelper messagehelper = new Mimemessagehelper (MimeMessage, True, "UTF-8");
        Messagehelper.setfrom (Emailform, personal);
        Messagehelper.setto (to);
        Messagehelper.setsubject (subject);
        Messagehelper.settext (HTML, true);
    Mailsender.send (MimeMessage);
 }
}

The source code has been uploaded and can be downloaded
Https://github.com/wolf521/demo/tree/master/src/main/java/com/example/demo/mail

Jar Package Download
http://download.csdn.net/download/qq_32371887/10123280