Question

我有这段代码：

import java.util.Properties;

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;

import android.telephony.gsm.GsmCellLocation;

public class EmailSender {

    public void sendEmail(String personId, GsmCellLocation location) {
        Properties props = System.getProperties();
        props.put("mail.smtp.starttls.enable", true); // added this line
        props.put("mail.smtp.host", "smtp.gmail.com");
        props.put("mail.smtp.ssl.trust", "smtp.gmail.com");
        props.put("mail.smtp.user", "*******");
        props.put("mail.smtp.password", "******");
        props.put("mail.smtp.port", "25");
        props.put("mail.smtp.auth", true);
        Session session = Session.getInstance(props, new GMailAuthenticator("*****", "*******"));

        MimeMessage message = new MimeMessage(session);

        System.out.println("Port: " + session.getProperty("mail.smtp.port"));

        // Create the email addresses involved
        try {
            InternetAddress from = new InternetAddress("*****@gmail.com");
            message.setSubject("Yes we can");
            message.setFrom(from);
            message.addRecipients(Message.RecipientType.TO, InternetAddress.parse("****@gmail.com"));

            // Create a multi-part to combine the parts
            Multipart multipart = new MimeMultipart("alternative");

            // Create your text message part
            BodyPart messageBodyPart = new MimeBodyPart();
            messageBodyPart.setText("some text to send");

            // Add the text part to the multipart
            multipart.addBodyPart(messageBodyPart);

            // Create the html part
            messageBodyPart = new MimeBodyPart();
            String htmlMessage = "Person " + personId + " at location: " + location + " might be in trouble, please check! ";
            messageBodyPart.setContent(htmlMessage, "text/html");


            // Add html part to multi part
            multipart.addBodyPart(messageBodyPart);

            // Associate multi-part with message
            message.setContent(multipart);

            // Send message
            Transport transport = session.getTransport("smtp");
            transport.connect("smtp.gmail.com", "username", "password");
            System.out.println("Transport: " + transport.toString());
            transport.sendMessage(message, message.getAllRecipients());


        } catch (AddressException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (MessagingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

向我发送电子邮件。

当我尝试在我的Android设备上运行它时，它会一直这样说：

http://pastebin.com/C6vCuSke

因此，导入mail.jar和Activation.jar文件时出现问题。然而，我正确地导入了它们，并将它们添加到Order and export选项卡的列表中，当我将它作为普通Java应用程序运行时它正在工作。谁能告诉我出了什么问题？

Answer 1

可能你错过了导出包含 java.awt.datatransfer.Transferable 界面的jar。

我认为它包含在 rt.jar （包含在JRE中）中。可能应该可以将它导出到apk，但它很重（这是Java运行时！）并且方法的数量可能超过单个apk限制（65536）。所以你应该更改电子邮件库。

Answer 2

我已经发现了问题，我显然使用的jar文件在某种程度上已损坏或损坏！很高兴我发现了问题：）

Android Mail应用程序无法正常工作

2 个答案: