Java Send mail related

• Send activation message
• • E-mail: A piece of space on an email server;
  • Mail server: Analogy to the Web server (tomcat), with the corresponding server software;
  • Mail protocol: Large companies send and receive servers separate, or you can use a server.

SMTP: Simple mail-sending protocol; POP3: an agreement to receive mail;

• • The whole process of sending mail: Theoretically need to be networked, but by building a local server, you can send messages locally.

• • To build a mailbox server:
  • • Install the mailbox server (e-mail server, the default installation on the C drive)
    • Open the server, modify the domain name: Tools--Server settings--to customize the single domain name, for example: Shop.com.
    • Register several internal accounts: account-and new account. Password set to 55555
    • Sign up for a custom official account: Service Password: 55555
  • Install mail client software (can send mail): Avoid the web version of the session expired offline problem.
  • • Popular software has: Outlook (Microsoft Charges), Foxmail (free, choose Foxmail)
    • Configuration

* Configure outgoing mail server: localhost * Configure incoming mail server: localhost

• • Encoding for mail delivery (see Mailutils.java)

4. User activation
   • Click the activation link in the mailbox client:
   • • Query based on the activation code passed in the link

                         * If user is not empty: Modify User state: 0  -->  1, the activation success message is passed to the foreground.                          * If the user is empty: The activation code fails or is tampered with, the activation failure message is passed to the foreground.  import Java.util.properties;import Javax.mail.authenticator;import Javax.mail.message;import Javax.mail.message.recipienttype;import Javax.mail.messagingexception;import javax.mail.PasswordAuthentication; Import Javax.mail.session;import Javax.mail.transport;import Javax.mail.internet.addressexception;import Javax.mail.internet.internetaddress;import javax.mail.internet.mimemessage;/** * Send Message tool class  */public class Mailutils {   /**     * ways to send messages      * @param to recipients      * @param c Ode Activation Code      */    public static void SendMail (string to, string code) {        /**         * 1. Get a Session object   &NBsp      * 2. Create an object that represents a message message         * 3. Send mail transport         */       //1. Get a Session object         Properties props = new Properties (); &nbs P       Props.setproperty ("mail.host", "localhost");//Specify who the host who sent the message is:localhost        Session session = Session.getinstance (props, New Authenticator () {            protected Pass Wordauthentication getpasswordauthentication () {                return new Passwor Dauthentication ("[email protected]", "55555");           }       );       //2. Create an object that represents a message message        Message message = new MimeMessage (session);        Try {           //2.1: Set sender       &NBSP ;     MESSAGE.SETFROM (New InternetAddress ("[email protected]"));           //2.2: Set up recipients     & nbsp      /* cc: CC, BCC:bcc*/            message.addrecipient (recipienttype.to, NE W internetaddress (To));           //2.3: Set up message title             MES Sage.setsubject ("Official Account activation Email! ");           //2.4: Set message body             message.setcontent (" &lt ;h2> welcome you xxxx, this is only Tesco official email account activation message body, do not divulge <br/> this message, so as to avoid loss to the user! Please click on the link below to complete the account activation operation.
User-activated action method:     /*** User-activated method      */      Public String Active() {          //According to the activation code to query the user:User Existuser = UserService.Findbycode(User.GetCode());          //Judgment           if (Existuser == NULL) {              //Activation code is wrong              This .Addactionmessage("Activation failed: Activation code Error!");          } Else {              //Activation successful              //Modify the status of the user              Existuser.setState(1);              Existuser.Setcode( NULL);              UserService.Update(Existuser);              This .Addactionmessage("Activation succeeded: Please login!");          }           return "MSG";     }

Java Send mail related