java web郵件發送

一. 相關配置

.properties文件

## mail
mail.smtp.host=smtp.XXXXX.com
[email protected]
mail.smtp.password=XXXXXX
mail.smtp.port=465
mail.smtp.auth=true
mail.smtp.timeout=25000

mail.smtp.ssl.enable=true
mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
mail.smtp.socketFactory.port=465
mail.smtp.socketFactory.fallback=false
[email protected]

配置類

@Component
public class AppConfig {
    // mail
	@Value("${mail.smtp.host}")
	private String mailHost;
	@Value("${mail.smtp.user}")
	private String mailUser;
	@Value("${mail.smtp.password}")
	private String mailPassword;
	@Value("${mail.smtp.port}")
	private String mailPort;
	@Value("${mail.smtp.auth}")
	private String mailAuth;
	@Value("${mail.smtp.timeout}")
	private String mailTimeout;
	@Value("${mail.smtp.ssl.enable}")
	private String mailSsl;
	@Value("${mail.recipient.cc}")
	private String mailCc;

    public String getMailHost() {
		return mailHost;
	}

	public void setMailHost(String mailHost) {
		this.mailHost = mailHost;
	}

	public String getMailUser() {
		return mailUser;
	}

	public void setMailUser(String mailUser) {
		this.mailUser = mailUser;
	}

	public String getMailPassword() {
		return mailPassword;
	}

	public void setMailPassword(String mailPassword) {
		this.mailPassword = mailPassword;
	}

	public String getMailPort() {
		return mailPort;
	}

	public void setMailPort(String mailPort) {
		this.mailPort = mailPort;
	}

	public String getMailAuth() {
		return mailAuth;
	}

	public void setMailAuth(String mailAuth) {
		this.mailAuth = mailAuth;
	}

	public String getMailTimeout() {
		return mailTimeout;
	}

	public void setMailTimeout(String mailTimeout) {
		this.mailTimeout = mailTimeout;
	}

	public String getMailSsl() {
		return mailSsl;
	}

	public void setMailSsl(String mailSsl) {
		this.mailSsl = mailSsl;
	}
	
	public String getMailCc() {
		return mailCc;
	}

	public void setMailCc(String mailCc) {
		this.mailCc = mailCc;
	}

}

 

二. 郵件發送

import java.util.ArrayList;
import java.util.List;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.google.common.base.Strings;

@Component
public class MailUtil implements InitializingBean {

	@Autowired
	private AppConfig appConfig;
	
	private static final String SMTP = "smtp";
	private static final String CONTENT_TYPE = "text/html;charset=utf-8";
	private static final List<String> CC = new ArrayList<String>();
	
	private static final Logger logger = Logger.getLogger(MailUtil.class);
	
	public void sendMail(List<String> toList, List<String> cc, String subject, String body)
			throws AddressException, MessagingException {
		Properties props = System.getProperties();
		props.put("mail.smtp.ssl.enable", appConfig.getMailSsl());
		props.put("mail.smtp.host", appConfig.getMailHost());
		props.put("mail.smtp.user", appConfig.getMailUser());
		props.put("mail.smtp.password", appConfig.getMailPassword());
		props.put("mail.smtp.port", appConfig.getMailPort());
		props.put("mail.smtp.auth", appConfig.getMailAuth());

		Session session = Session.getDefaultInstance(props);
		MimeMessage message = new MimeMessage(session);

		message.setFrom(new InternetAddress(appConfig.getMailUser()));
		
		logger.info("mail subject : " + subject);
		
		List<String> to = new ArrayList<String>();
		
		for (int i = 0; i < toList.size(); i++) {//去重
			String tempMail = toList.get(i);
			logger.info("toList mail i = " + i + " : " + tempMail);
			if(!to.contains(tempMail)){
				to.add(tempMail);
			}
			
		}
		
		logger.info("after removing the repeat mail, to list size: " + to.size());
		
		logger.info("is in dev mode: " + appConfig.isInDevelopMode());
	    logger.info("is in prod mode: " + appConfig.isInProductionMode());
	    
		//20160202 in product 
	    if(appConfig.isInProductionMode()){
			for (int i = 0; i < to.size(); i++) {
				message.addRecipient(Message.RecipientType.TO, new InternetAddress(to.get(i)));
			}
			
			if (cc != null) {
				for (int i = 0; i < cc.size(); i++) {
					message.addRecipient(Message.RecipientType.CC, new InternetAddress(cc.get(i)));
				}
			}
	    }
		
		//沒什麼用  註釋掉
		/*for (int i = 0; i < CC.size(); i++) {
			message.addRecipient(Message.RecipientType.CC, new InternetAddress(CC.get(i)));
		}*/
		
	   
		//20160202 in develop 
	    if(appConfig.isInDevelopMode()){
			//message.addRecipient(Message.RecipientType.TO, new InternetAddress("[email protected]"));
			message.addRecipient(Message.RecipientType.TO, new InternetAddress(Constants.ADMIN_EMAIL));
	    }
		
		message.setSubject(subject);
		message.setContent(body, CONTENT_TYPE);
		
		Transport transport = session.getTransport(SMTP);
		transport.connect(appConfig.getMailHost(), appConfig.getMailUser(), appConfig.getMailPassword());
		transport.sendMessage(message, message.getAllRecipients());
		transport.close();
	}

	@Override
	public void afterPropertiesSet() throws Exception {
		// TODO Auto-generated method stub
		if (!Strings.isNullOrEmpty(appConfig.getMailCc())) {
			String []cc = appConfig.getMailCc().split(";");
			for (int i = 0; i < cc.length; i++) {
				CC.add(cc[i].trim());
			}
		}
	}
}