package com.util.mail;
import java.util.Properties;
/**
 * 發送郵件需要使用的基本信息
 */
public class MailSenderInfo {
    //發送郵件的服務器的IP和端口
    private String mailServerHost;
    private String mailServerPort = "25";
    //郵件發送者的地址
    private String fromAddress;
    //郵件接收者的地址
    private String toAddress;
    //登錄郵件發送服務器的用戶名和密碼
    private String userName;
    private String password;
    //是否需要身份驗證
    private boolean validate = false;
    //郵件主題
    private String subject;
    //郵件的文本內容
    private String content;
    //郵件附件的文件名
    private String[] attachFileNames;
    /**
     * 獲得郵件會話屬性
     */
    public Properties getProperties() {
        Properties p = new Properties();
        p.put("mail.smtp.host", this.mailServerHost);
        p.put("mail.smtp.port", this.mailServerHost);
        p.put("mail.smtp.auth", validate ? "true" : "false");
        return p;
    }
    public String getMailServerHost() {
        return mailServerHost;
    }
    public void setMailServerHost(String mailServerHost) {
        this.mailServerHost = mailServerHost;
    }
    public String getMailServerPort() {
        return mailServerPort;
    }
    public void setMailServerPort(String mailServerPort) {
        this.mailServerPort = mailServerPort;
    }
    public boolean isValidate() {
        return validate;
    }
    public void setValidate(boolean validate) {
        this.validate = validate;
    }
    public String[] getAttachFileNames() {
        return attachFileNames;
    }
    public void setAttachFileNames(String[] attachFileNames) {
        this.attachFileNames = attachFileNames;
    }
    public String getFromAddress() {
        return fromAddress;
    }
    public void setFromAddress(String fromAddress) {
        this.fromAddress = fromAddress;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getToAddress() {
        return toAddress;
    }
    public void setToAddress(String toAddress) {
        this.toAddress = toAddress;
    }
    public String getUserName() {
        return userName;
    }
    public void setUserName(String userName) {
        this.userName = userName;
    }
    public String getSubject() {
        return subject;
    }
    public void setSubject(String subject) {
        this.subject = subject;
    }
    public String getContent() {
        return content;
    }
    public void setContent(String content) {
        this.content = content;
    }
}

package com.util.mail;
import java.util.Date;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
/**
 * 簡單郵件(不帶附件)發送器
 */
public class SimpleMailSender {
    /**
     * 以文本格式發送郵件
     * @param mailInfo 待發送的郵件的信息
     */
    public boolean sendTextMail(MailSenderInfo mailInfo) {
        //判斷是否需要身份認證
        MyAuthenticator authenticator = null;
        Properties pro = mailInfo.getProperties();
        if (mailInfo.isValidate()) {
            //如果需要身份認證，則創建一個密碼驗證器
            authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
        }
        //根據郵件會話屬性和密碼驗證器構造一個發送郵件的session
        Session sendMailSession = Session.getDefaultInstance(pro, authenticator);
        try {
            //根據session創建一個郵件消息
            Message mailMessage = new MimeMessage(sendMailSession);
            //創建郵件發送者地址
            Address from = new InternetAddress(mailInfo.getFromAddress());
            //設置郵件消息的發送者
            mailMessage.setFrom(from);
            //創建郵件的接收者地址，并設置到郵件消息中
            Address to = new InternetAddress(mailInfo.getToAddress());
            // Message.RecipientType.TO屬性表示接收者的類型為TO
            mailMessage.setRecipient(Message.RecipientType.TO, to);
            // 設置郵件消息的主題
            mailMessage.setSubject(mailInfo.getSubject());
            // 設置郵件消息發送的時間
            mailMessage.setSentDate(new Date());
            // 設置郵件消息的主要內容
            String mailContent = mailInfo.getContent();
             mailMessage.setText(mailContent);
             // 發送郵件
             Transport.send(mailMessage);
             return true;
        } catch (AddressException e) {
            e.printStackTrace();
        } catch (MessagingException e) {
            e.printStackTrace();
        }
        return false;
    }
    /**
     * 以Html格式發送郵件
     * @param mailInfo 待發送的郵件的信息
     */
    public boolean sendHtmlMail(MailSenderInfo mailInfo) {
        //判斷是否需要身份認證
        MyAuthenticator authenticator = null;
        Properties pro = mailInfo.getProperties();
        if (mailInfo.isValidate()) {
            //如果需要身份認證，則創建一個密碼驗證器
            authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
        }
        //根據郵件會話屬性和密碼驗證器構造一個發送郵件的session
        Session sendMailSession = Session.getDefaultInstance(pro, authenticator);
        try {
            //根據session創建一個郵件消息
            Message mailMessage = new MimeMessage(sendMailSession);
            //創建郵件發送者地址
            Address from = new InternetAddress(mailInfo.getFromAddress());
            //設置郵件消息的發送者
            mailMessage.setFrom(from);
            //創建郵件的接收者地址，并設置到郵件消息中
            Address to = new InternetAddress(mailInfo.getToAddress());
            // Message.RecipientType.TO屬性表示接收者的類型為TO
            mailMessage.setRecipient(Message.RecipientType.TO, to);
            // 設置郵件消息的主題
            mailMessage.setSubject(mailInfo.getSubject());
            // 設置郵件消息發送的時間
            mailMessage.setSentDate(new Date());
            // MimeMultipart類是一個容器類，包含MimeBodyPart類型的對象
            Multipart mainPart = new MimeMultipart();
            // 創建一個包含HTML內容的MimeBodyPart
            BodyPart html = new MimeBodyPart();
            //設置HTML內容
            html.setContent(mailInfo.getContent(), "text/html; charset=utf-8");
            mainPart.addBodyPart(html);
            //將mainPart對象設置為郵件內容
             mailMessage.setContent(mainPart);
             // 發送郵件
             Transport.send(mailMessage);
             return true;
        } catch (AddressException e) {
            e.printStackTrace();
        } catch (MessagingException e) {
            e.printStackTrace();
        }
        return false;
    }
}

package com.util.mail;
import javax.mail.*;
/**
 * 身份認證
 */
public class MyAuthenticator extends Authenticator {
    String userName = null;
    String password = null;
    public MyAuthenticator(){
    }
    public MyAuthenticator(String username, String password) {
        this.userName = username;
        this.password = password;
    }
    @Override
    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(userName, password);
    }
}

package com.util.mail;
/**
 * 發送郵件
 */
public class Mail {
    /**
     * @param args
     */
    public static void main(String[] args) {
        //這個類主要是設置郵件
        MailSenderInfo mailInfo = new MailSenderInfo();
        mailInfo.setMailServerHost("smtp.126.com");
        mailInfo.setMailServerPort("25");
        mailInfo.setValidate(true);
        mailInfo.setUserName("[email protected]");
        mailInfo.setPassword("test");
        mailInfo.setFromAddress("[email protected]");
        mailInfo.setToAddress("[email protected]");
        mailInfo.setSubject("設置郵箱標題 如http://www.guihua.org 中國桂花網");
        mailInfo.setContent("設置郵箱內容 如http://www.guihua.org 中國桂花網 是中國最大桂花網站==");
        //這個類主要來發送郵件
        SimpleMailSender sms = new SimpleMailSender();
        sms.sendTextMail(mailInfo);
        sms.sendHtmlMail(mailInfo);
    }
}