Java Send mail

//Download Mail.jar from Oracle First
Packagetest;ImportJavax.mail.BodyPart;ImportJavax.mail.Message;ImportJavax.mail.Multipart;Importjavax.mail.Session;ImportJavax.mail.Transport;Importjavax.mail.internet.*;ImportJava.util.*;Importjavax.activation.*; Public classMailutils {PrivateString host = "";//SMTP Server    PrivateString from = "";//Sender Address    PrivateString to = "";//Recipient Address    PrivateString affix = "";//Attachment Address    PrivateString affixname = "";//Attachment name    PrivateString user = "";//User name    PrivateString pwd = "";//Password    PrivateString subject = "";//message Header     Public voidsetaddress (string from, string to, string subject) { This. from =From ;  This. to =to ;  This. Subject =subject; }     Public voidSetaffix (String affix, string affixname) { This. Affix =affix;  This. Affixname =Affixname; }     Public voidSend (string host, String user, string pwd) { This. Host =host;  This. user =user;  This. PWD =pwd; Properties Props=NewProperties (); //set the properties of the mail server to send mail (use NetEase's SMTP server here)Props.put ("Mail.smtp.host", host); //need to be authorized, that is, the user name and password verification, so as to pass verification (must have this)Props.put ("Mail.smtp.auth", "true"); //build a session with the props object you just set upSession session =session.getdefaultinstance (props); //with this sentence you can display the process information at the console during the sending of the message for debugging//(You can see the process of sending the message in the console)Session.setdebug (true); //defining a Message object with session parametersMimeMessage message =NewMimeMessage (session); Try {            //Load Sender AddressMessage.setfrom (Newinternetaddress (from)); //Load recipient addressMessage.addrecipient (Message.RecipientType.TO,Newinternetaddress (to)); //Load TitleMessage.setsubject (subject); //add various parts of the message to the multipart object, including text content and attachmentsMultipart Multipart =NewMimemultipart (); //set the text content of a messageBodyPart Contentpart =NewMimeBodyPart (); Contentpart.settext ("The specific content of the message is here");            Multipart.addbodypart (Contentpart); //Add an attachmentBodyPart Messagebodypart =NewMimeBodyPart (); DataSource Source=NewFiledatasource (affix); //Add the contents of an attachmentMessagebodypart.setdatahandler (NewDataHandler (source)); //Add a caption for an attachment//It is important to use the following BASE64 encoded conversion to ensure that your Chinese attachment header name is not garbled when it is sentSun.misc.BASE64Encoder enc =NewSun.misc.BASE64Encoder (); Messagebodypart.setfilename ("=? GBK?                    B? " + Enc.encode (affixname.getbytes ()) + "? =");            Multipart.addbodypart (Messagebodypart); //Place the multipart object in the messagemessage.setcontent (multipart); //Save Messagemessage.savechanges (); //Send mailTransport Transport = Session.gettransport ("SMTP"); //connect to the server's mailboxTransport.connect (host, user, PWD); //Send the Mail outtransport.sendmessage (Message, message.getallrecipients ());        Transport.close (); } Catch(Exception e) {e.printstacktrace (); }    }     Public Static voidMain (string[] args) {mailutils cn=Newmailutils (); //set sender address, recipient address, and message headerCn.setaddress ("[Email protected]", "* * * @qq. com", "one JavaMail Mail with attachments"); //set the location and title of the attachment to sendCn.setaffix ("E:/1.txt", "1.txt"); /*** Set the SMTP server and mailbox account number and password * QQ mailbox as the occurrence of bad (unexplained) * 163 mailbox can be, but must open POP3/SMTP service and IMAP/SMTP services * Because the program is a third-party login, the login password must use 163 of the authorization Code*/        //NOTE: [The authorization code is not the same as your usual login password]Cn.send ("smtp.163.com", "[email protected]", "Password"); }}

Java Send mail