使用java电子邮件获取交货和发送收据

时间:2017-06-05 13:15:02

标签: spring-boot javamail

我正在使用下面的代码。我想收到邮件的收据和送货单。仍然无法使用此代码。

我曾尝试添加属性,但没有用。我有一个要求,我需要检查电子邮件是否成功发送。我已经编写了电子邮件递送的代码,但即使对于无效的电子邮件地址也会打印成功。如何使用javamail API跟踪是否发送电子邮件

import java.io.ByteArrayOutputStream;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;

import javax.activation.DataSource;
import javax.mail.MessagingException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.util.ByteArrayDataSource;

import org.apache.log4j.Logger;
import org.apache.velocity.app.VelocityEngine;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.MessageSource;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.mail.javamail.MimeMessagePreparator;
import org.springframework.stereotype.Service;
import org.springframework.ui.velocity.VelocityEngineUtils;
import org.springframework.util.StringUtils;

@Service
public class VelocityMailServiceImpl implements MailService {

    private static final Logger logger = Logger.getLogger(MailService.class);

    @Autowired
    private JavaMailSender mailSender;

    @Autowired
    private VelocityEngine velocityEngine;

    @Autowired
    private MessageSource messageSource;

    @Value("$env{email.smtp.host}")
    private String emailHost;

    /**
     * This method will send compose and send the message
     * */
    public void sendMail(String to, String from, String subject, String body) {
        SimpleMailMessage message = new SimpleMailMessage();
        String[] emailTos = null;

        try{

        if (to.contains(";")) {
            emailTos = to.split(";");
        } else if (to.contains(",")) {
            emailTos = to.split(",");
        } else {
            emailTos = new String[] { to };
        }
        message.setTo(emailTos);
        message.setFrom(from);
        //message.addFrom(InternetAddress.parse(from)); 
        message.setSubject(subject);
        message.setText(body);
        Properties props = new Properties();
    //  props.put("Return-Receipt-To", "admin@xyz.com"); 
    //  mailSender.setJavaMailProperties(props);
        mailSender.send(message);
        }catch(Exception e){
            System.out.println("Error sending amil.....");
        }
    }

1 个答案:

答案 0 :(得分:3)

无法保证确定邮件是否成功发送。如果这是您的要求,请立即放弃。

JavaMail FAQ解释why you don't get an exception when you try to use an invalid address

许多邮件服务器只是忽略发送到无效地址的邮件,以防止垃圾邮件发送者"探测"有效地址。

Delivery Status Notifications有互联网标准,但许多服务器不会实施标准或不会收到错误地址的通知。

检测邮件是否成功传递的最可靠方法是在邮件中包含一个链接,并请求收件人单击该链接以验证是否已收到邮件。显然这仍然不完美,因为他们可能永远不会点击链接。