Java classes that use JavaMail to send messages

Using JavaMail to send mail requires two packages of Mail.jar and Activtion.jar.

This class implements a more complete message forwarding function, including sending in HTML format, adding attachments and cc people. The following are the specific code:

Mail.java:

Package cn.cgw.util.mail;  
      
Import java.util.Properties;  
Import Javax.activation.DataHandler;  
Import Javax.activation.FileDataSource;  
Import javax.mail.Address;  
Import Javax.mail.BodyPart;  
Import Javax.mail.Message;  
Import Javax.mail.Multipart;  
Import javax.mail.Session;  
Import Javax.mail.Transport;  
Import javax.mail.internet.InternetAddress;  
Import Javax.mail.internet.MimeBodyPart;  
Import Javax.mail.internet.MimeMessage;  
      
      
Import Javax.mail.internet.MimeMultipart;   
    public class Mail {private mimemessage mimemsg;//mime Mail object private session sessions;//Mail Conversation object Private Properties props; System Attribute Private Boolean Needauth = false;   
    Whether SMTP requires authentication//smtp user name and password private String username;   
    private String password; Private Multipart MP; 
     Multipart objects, message content, headers, attachments, and so on are added to the MimeMessage object/** * constructor * @param SMTP mail server */Public Mail (String SMTP) {setsmtphost (SMTP);   
    Createmimemessage (); /** * Set Mail sending server * @param hostName string/public void Setsmtphost (string hostName   
        {System.out.println ("Set system properties: Mail.smtp.host =" +hostname); if (props = = null) props = System.getproperties (); Get the System attribute object Props.put ("Mail.smtp.host", hostName); Set SMTP Host}/** * Create MIME Mail Object * @return/public boolean Createmimeme Ssage () {try {System.out.println ("Ready to get mail Session Object!")   
            "); Session = Session.getdefaultinstance (props,null); Get mail Session object} catch (Exception e) {System.err.println: Error getting mail Session Object!   
            "+e);   
        return false; SYSTEM.OUT.PRINTLN ("Prepare to create MIME mail Object!")   
        "); try {mimemsg = new mimemessage (session);//create MIME mail Object MP = new MimemuLtipart ();   
        return true; catch (Exception e) {System.err.println ("Create MIME mail object failed!")   
            "+e);   
        return false; /** * Set SMTP to verify * @param need */public void Setneedauth (boolean n   
        Eed) {System.out.println ("Set SMTP identity authentication: Mail.smtp.auth =" +need);   
        if (props = = null) props = System.getproperties ();   
        if (need) {props.put ("Mail.smtp.auth", "true");   
        }else{props.put ("Mail.smtp.auth", "false"); /** * Set username and password * @param name * @param pass */public void Setnamepass (String name,string Pass)   
        {username = name;   
    Password = pass; /** * Set Mail subject * @param mailsubject * @return/public boolean setsubject (Strin G Mailsubject) {System.out.println ("set message theme!")   
        "); Try{Mimemsg.setsubject (mailsubject);   
        return true; catch (Exception e) {System.err.println ("Set the message subject Error!")   
            ");   
        return false; }/** * Set message body * @param mailbody String/public boolean setbody (Strin   
            G mailbody) {try{bodypart bp = new MimeBodyPart ();   
            Bp.setcontent ("" "+mailbody," TEXT/HTML;CHARSET=GBK ");   
              
            Mp.addbodypart (BP);   
        return true; catch (Exception e) {System.err.println ("error when setting message body!")   
        "+e);   
        return false; }/** * Add attachment * @param filename string/public boolean Addfileaffix (string filen   
        AME) {System.out.println ("Add Mail attachment:" +filename);   
            try{bodypart bp = new MimeBodyPart (); Filedatasource fileds = new Filedatasource (filename);   
            Bp.setdatahandler (New DataHandler (fileds));   
                  
            Bp.setfilename (Fileds.getname ());   
                  
            Mp.addbodypart (BP);   
        return true; catch (Exception e) {System.err.println ("Add Mail attachment: +filename+" Error!)   
            "+e);   
        return false; }/** * Set sender * View more highlights of this column: http://www.bianceng.cnhttp://www.bianceng.cn/Programming/ java/* @param from String/public boolean Setfrom (string from) {System.out.println ("Set the sender!").   
        ");   
        try{Mimemsg.setfrom (New InternetAddress (from));//Set sender return true;   
        catch (Exception e) {return false; /** * Set the recipient * @param to String/public boolean setto (string to) {I   
        F (to = = null) return false; try{mimemsg.setrecipients (Message.recipienTtype.to,internetaddress.parse (to));   
        return true;   
        catch (Exception e) {return false; }/** * Set cc person * @param copyto String */public boolean setcopyto (St   
        Ring CopyTo) {if (CopyTo = null) return false;   
        try{mimemsg.setrecipients (Message.RecipientType.CC, (address[)) Internetaddress.parse (CopyTo));   
        return true;   
    catch (Exception e) {return false;} /** * Send mail/public boolean sendout () {try{Mimem   
            Sg.setcontent (MP);   
            Mimemsg.savechanges ();   
                  
            SYSTEM.OUT.PRINTLN ("Sending mail ...");   
            Session mailsession = Session.getinstance (props,null);   
            Transport transport = Mailsession.gettransport ("SMTP"); Transport.connect ((String) props.get ("Mail.smtp.host"), Username,password);   
            Transport.sendmessage (Mimemsg,mimemsg.getrecipients (Message.RecipientType.TO));   
            Transport.sendmessage (Mimemsg,mimemsg.getrecipients (Message.RecipientType.CC));   
                  
            Transport.send (MIMEMSG); SYSTEM.OUT.PRINTLN ("Send mail successful!")   
            ");   
                  
            Transport.close ();   
        return true; catch (Exception e) {System.err.println ("Mail send failed!")   
            "+e);   
        return false; /** * Calls Sendout method completes mail send * @param SMTP * @param from * @param to * @
    param subject * @param content * @param username * @param password * @return Boolean * * public static Boolean send (String smtp,string from,string to,string subject,string content,string username,string  
        Password) {Mail themail = new mail (SMTP); Themail.setneedauth (TRUE);  
              
     Need to verify   if (!themail.setsubject (subject)) return false;  
        if (!themail.setbody (content)) return false;  
        if (!themail.setto) return false;  
        if (!themail.setfrom) return false;  
              
        Themail.setnamepass (Username,password);  
        if (!themail.sendout ()) return false;  
    return true; /** * Calls the Sendout method to complete the mail delivery, with CC * @param SMTP * @param from * @param to * @pa Ram CopyTo * @param subject * @param content * @param username * @param password * @return b Oolean */public static Boolean SENDANDCC (String smtp,string from,string to,string copyto,string subject,string  
        content,string username,string password) {Mail themail = new mail (SMTP); Themail.setneedauth (TRUE);  
        You need to verify if (!themail.setsubject (subject)) return false;  
        if (!themail.setbody (content)) return false; if (!themail.setto (to)) RetuRN false;  
        if (!themail.setcopyto (CopyTo)) return false;  
        if (!themail.setfrom) return false;  
              
        Themail.setnamepass (Username,password);  
        if (!themail.sendout ()) return false;  
    return true; /** * Calls the Sendout method to complete the mail send, with attachment * @param SMTP * @param from * @param to * @pa Ram Subject * @param content * @param username * @param password * @param filename attachment path * @r Eturn */public static Boolean send (String smtp,string from,string to,string subject,string content,string Usern  
        ame,string password,string filename) {Mail themail = new mail (SMTP); Themail.setneedauth (TRUE);  
        You need to verify if (!themail.setsubject (subject)) return false;  
        if (!themail.setbody (content)) return false;   
        if (!themail.addfileaffix (filename)) return false;  
        if (!themail.setto) return false; if (!themaIl.setfrom (from)] return false;  
              
        Themail.setnamepass (Username,password);  
        if (!themail.sendout ()) return false;  
    return true; /** * Calls Sendout method completes mail send, with attachments and CC * @param SMTP * @param from * @param to *  @param copyto * @param subject * @param content * @param username * @param password * @param FileName * @return/public static Boolean SENDANDCC (String smtp,string from,string to,string copyto,str  
        ing subject,string content,string username,string password,string filename) {mail themail = new Mail (SMTP); Themail.setneedauth (TRUE);  
        You need to verify if (!themail.setsubject (subject)) return false;  
        if (!themail.setbody (content)) return false;   
        if (!themail.addfileaffix (filename)) return false;  
        if (!themail.setto) return false;  
       if (!themail.setcopyto (CopyTo)) return false; if (!themail.setfrom) return false;  
              
        Themail.setnamepass (Username,password);  
        if (!themail.sendout ()) return false;  
    return true; }  
          
}

Test code:

public static void Main (string[] args) {  
    String SMTP = SMTP server;  
    String from = "Sender";  
    String to = "addressee";  
    String CopyTo = "cc person";  
    String subject = "message subject";  
    String content = "message content";  
    String username= "user name";  
    String password= "password";  
    String filename = "attachment path, such as: f:\\ notes <a>\\struts2</a> and Mvc.txt";
    MAIL.SENDANDCC (SMTP, from, to, CopyTo, subject, content, username, password, filename);