使用javamail.jar进行邮件发送包含代理设置

下面给大家贡献一份使用javamail进行邮件发送的例子，其中包含有代理设置的功能，可以通过代理进行邮件发送。

import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.SendFailedException;
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;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class EmailUtil {
	private final static String default_charset = "UTF-8";

	public static enum EncryptionTypes {
		Default, TLS, SSL
	}

	static final Log logger = LogFactory.getLog(EmailUtil.class);
	private String mail_host = "";
	private int mail_port = 25;
	private int encryptionType = EncryptionTypes.Default.ordinal();
	private boolean auth = false;
	private String mail_host_account = "";
	private String mail_host_password = "";
	private boolean isHtml = true;

	public EmailUtil(String mail_host) {
		this.mail_host = mail_host;
	}

	public EmailUtil(String mail_host, boolean auth, String account, String password) {
		this(mail_host, 25, EncryptionTypes.Default.ordinal(), auth, account, password);
	}

	public EmailUtil(String mail_host, int mail_port, int encryptionType, boolean auth, String account, String password) {
		this.mail_host = mail_host;
		this.mail_port = mail_port;
		this.encryptionType = encryptionType;
		this.auth = auth;
		this.mail_host_account = account;
		this.mail_host_password = password;
	}

	public EmailUtil(String mail_host, boolean auth, String account, String password, boolean isHtml) {
		this(mail_host, 25, EncryptionTypes.Default.ordinal(), auth, account, password, isHtml);
	}

	public EmailUtil(String mail_host, int mail_port, int encryptionType, boolean auth, String account, String password, boolean isHtml) {
		this.mail_host = mail_host;
		this.mail_port = mail_port;
		this.encryptionType = encryptionType;
		this.auth = auth;
		this.mail_host_account = account;
		this.mail_host_password = password;
		this.isHtml = isHtml;
	}

	public void sendEmail(String senderAddress, String senderName, String receiverAddress, String sub, String msg) throws Exception {
		String[] address = receiverAddress.split(";");
		List recipients = new ArrayList();
		for (int i = 0; i < address.length; i++) {
			if (address[i].trim().length() > 0) {
				recipients.add(address[i]);
			}
		}
		this.sendEmail(senderAddress, senderName, recipients, sub, msg);
	}

	public void sendEmail(String senderAddress, String senderName, List recipients, String sub, String msg) throws SendFailedException {
		this.sendEmail(senderAddress, senderName, recipients, sub, msg, null);
	}

	public void sendEmail(String senderAddress, String senderName, String receiverAddress, String sub, String msg, Collection attachments) throws Exception {
		String[] address = receiverAddress.split(";");
		List recipients = new ArrayList();
		for (int i = 0; i < address.length; i++) {
			if (address[i].trim().length() > 0) {
				recipients.add(address[i]);
			}
		}
		this.sendEmail(senderAddress, senderName, recipients, sub, msg, attachments);
	}

	public void sendEmailByProxy(String proxyHost, String proxyPort, String senderAddress, String senderName, String receiverAddress, String sub, String msg, Collection attachments) throws Exception {
		String[] address = receiverAddress.split(";");
		List recipients = new ArrayList();
		for (int i = 0; i < address.length; i++) {
			if (address[i].trim().length() > 0) {
				recipients.add(address[i]);
			}
		}
		this.sendEmailByProxy(proxyHost, proxyPort, senderAddress, senderName, recipients, sub, msg, attachments);
	}

	public void sendEmail(String senderAddress, String senderName, List recipients, String sub, String msg, Collection attachments) throws SendFailedException {
		Transport transport = null;
		try {
			Properties props = this.getProperties();
			Session session = this.getSession(props);
			MimeMessage message = new MimeMessage(session);
			if (this.getDefaultIsHtml()) {
				message.addHeader("Content-type", "text/html");
			} else {
				message.addHeader("Content-type", "text/plain");
			}
			message.setSubject(sub, default_charset);
			message.setFrom(new InternetAddress(senderAddress, senderName));
			for (Iterator it = recipients.iterator(); it.hasNext();) {
				String email = (String) it.next();
				message.addRecipients(Message.RecipientType.TO, email);
			}
			Multipart mp = new MimeMultipart();
			MimeBodyPart contentPart = new MimeBodyPart();
			if (this.getDefaultIsHtml()) {
				contentPart.setContent("<meta http-equiv=Content-Type content=text/html; charset=" + default_charset + ">" + msg, "text/html;charset=" + default_charset);
			} else {
				contentPart.setText(msg, default_charset);
			}
			mp.addBodyPart(contentPart);
			if (attachments != null) {
				MimeBodyPart attachPart;
				for (Iterator it = attachments.iterator(); it.hasNext();) {
					attachPart = new MimeBodyPart();
					FileDataSource fds = new FileDataSource(it.next().toString().trim());
					attachPart.setDataHandler(new DataHandler(fds));
					if (fds.getName().indexOf("$") != -1) {
						attachPart.setFileName(fds.getName().substring(fds.getName().indexOf("$") + 1, fds.getName().length()));
					} else {
						attachPart.setFileName(fds.getName());
					}
					mp.addBodyPart(attachPart);
				}
			}
			message.setContent(mp);
			message.setSentDate(new Date());
			if (this.getDefaultEncryptionType() == EncryptionTypes.SSL.ordinal()) {
				Transport.send(message);
			} else {
				transport = session.getTransport("smtp");
				transport.connect(this.mail_host, this.mail_port, this.mail_host_account, this.mail_host_password);
				transport.sendMessage(message, message.getAllRecipients());
			}
		} catch (Exception e) {
			logger.error("send mail error", e);
			throw new SendFailedException(e.toString());
		} finally {
			if (transport != null) {
				try {
					transport.close();
				} catch (Exception ex) {
				}
			}
		}
	}

	public void sendEmailByProxy(String proxyHost, String proxyPort, String senderAddress, String senderName, List recipients, String sub, String msg, Collection attachments) throws SendFailedException {
		Transport transport = null;
		try {
			Properties props = this.getProxyProperties(proxyHost, proxyPort);
			Session session = this.getSession(props);
			MimeMessage message = new MimeMessage(session);
			if (this.getDefaultIsHtml()) {
				message.addHeader("Content-type", "text/html");
			} else {
				message.addHeader("Content-type", "text/plain");
			}
			message.setSubject(sub, default_charset);
			message.setFrom(new InternetAddress(senderAddress, senderName));
			for (Iterator it = recipients.iterator(); it.hasNext();) {
				String email = (String) it.next();
				message.addRecipients(Message.RecipientType.TO, email);
			}
			Multipart mp = new MimeMultipart();
			MimeBodyPart contentPart = new MimeBodyPart();
			if (this.getDefaultIsHtml()) {
				contentPart.setContent("<meta http-equiv=Content-Type content=text/html; charset=" + default_charset + ">" + msg, "text/html;charset=" + default_charset);
			} else {
				contentPart.setText(msg, default_charset);
			}
			mp.addBodyPart(contentPart);
			if (attachments != null) {
				MimeBodyPart attachPart;
				for (Iterator it = attachments.iterator(); it.hasNext();) {
					attachPart = new MimeBodyPart();
					FileDataSource fds = new FileDataSource(it.next().toString().trim());
					attachPart.setDataHandler(new DataHandler(fds));
					if (fds.getName().indexOf("$") != -1) {
						attachPart.setFileName(fds.getName().substring(fds.getName().indexOf("$") + 1, fds.getName().length()));
					} else {
						attachPart.setFileName(fds.getName());
					}
					mp.addBodyPart(attachPart);
				}
			}
			message.setContent(mp);
			message.setSentDate(new Date());
			if (this.getDefaultEncryptionType() == EncryptionTypes.SSL.ordinal()) {
				Transport.send(message);
			} else {
				transport = session.getTransport("smtp");
				transport.connect(this.mail_host, this.mail_port, this.mail_host_account, this.mail_host_password);
				transport.sendMessage(message, message.getAllRecipients());
			}
		} catch (Exception e) {
			logger.error("send mail error", e);
			throw new SendFailedException(e.toString());
		} finally {
			if (transport != null) {
				try {
					transport.close();
				} catch (Exception ex) {
				}
			}
		}
	}

	private Properties getProperties() {
		Properties props = System.getProperties();
		int defaultEncryptionType = this.getDefaultEncryptionType();
		if (defaultEncryptionType == EncryptionTypes.TLS.ordinal()) {
			props.put("mail.smtp.auth", String.valueOf(this.auth));
			props.put("mail.smtp.starttls.enable", "true");
		} else if (defaultEncryptionType == EncryptionTypes.SSL.ordinal()) {
			props.put("mail.smtp.host", this.mail_host);
			props.put("mail.smtp.socketFactory.port", this.mail_port);
			props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
			props.put("mail.smtp.debug", "true");
			props.put("mail.smtp.auth", String.valueOf(this.auth));
			props.put("mail.smtp.port", this.mail_port);
		} else {
			props.put("mail.smtp.host", this.mail_host);
			props.put("mail.smtp.auth", String.valueOf(this.auth));
		}
		return props;
	}

	// 设置代理服务器
	private Properties getProxyProperties(String proxyHost, String proxyPort) {
		Properties props = System.getProperties();
		props.setProperty("proxySet", "true");
		props.setProperty("socksProxyHost", proxyHost);
		props.setProperty("socksProxyPort", proxyPort);
		props.setProperty("mail.smtp.host", this.mail_host);
		props.put("mail.smtp.auth", String.valueOf(this.auth));
		props.put("mail.debug", "true");
		return props;
	}

	private Session getSession(Properties props) {
		Session session = null;
		if (this.getDefaultEncryptionType() == EncryptionTypes.TLS.ordinal()) {
			session = Session.getInstance(props);
		} else if (this.getDefaultEncryptionType() == EncryptionTypes.SSL.ordinal()) {
			session = Session.getInstance(props, new MyAuthenticator(this.mail_host_account, this.mail_host_password));
		} else {
			session = Session.getDefaultInstance(props, null);
		}
		return session;
	}

	private boolean getDefaultIsHtml() {
		boolean rst = this.isHtml;
		return rst;
	}

	private class MyAuthenticator extends Authenticator {
		String user;
		String password;

		public MyAuthenticator() {
		}

		public MyAuthenticator(String user, String password) {
			this.user = user;
			this.password = password;
		}

		protected PasswordAuthentication getPasswordAuthentication() {
			return new PasswordAuthentication(this.user, this.password);
		}
	}

	private int getDefaultEncryptionType() {
		int rst = this.encryptionType;
		if (this.encryptionType == EncryptionTypes.Default.ordinal()) {
			if (this.mail_port == 465) {
				rst = EncryptionTypes.SSL.ordinal();
			} else if (this.mail_port == 587) {
				rst = EncryptionTypes.TLS.ordinal();
			}
		}
		return rst;
	}

	public static void main(String[] args) throws Exception {
		EmailUtil email = new EmailUtil("smtp.163.com", 25, 0, true, "test", "[email protected]", true);
		Collection col = new ArrayList();
		try {
			StringBuffer sb = new StringBuffer();
			sb.append("<html><head></head><body>");
			sb.append("<p><span style=\"font-size:16px; color:#009900 ;font: bold;\">亲爱的用户：test</span></p>");
			sb.append("<p>点击以下链接完成注册：</p>");
			sb.append("<p></p>");
			sb.append("<p>如果你的邮箱不支持链接点击，请将以上链接地址拷贝到你的浏览器地址栏中。</p>");
			sb.append("<p>此邮件由系统自动产生，请勿回复。(该链接仅在7日内点击有效，如果超过7日未点击确认，请你登录菩提蛮，并申请重发激活邮件)。</p>");
			sb.append("</body></html>");
			email.sendEmailByProxy("代理的IP地址", "代理端口", "[email protected]", "标题", "[email protected]", "欢迎注册", sb.toString(), col);
			System.out.println("发送成功！");
		} catch (Exception ex) {
			ex.printStackTrace();
			System.out.println("发送失败！");
		}
	}
}

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