想要在android中使用JavaMailAPI发送电子邮件。该代码工作正常并且所有信息都显示在日志中。但是当我检查我的电子邮件 ID 时，没有发送任何内容，也没有收到任何内容。
package com.example.android.emailverification;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity implements
View.OnClickListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button send = (Button) findViewById(R.id.send);
send.setOnClickListener(this);
}
private void sendEmail() {
new Thread(new Runnable() {
public void run() {
try {
Log.e(">>", "Inside SendEmail run()");
GMailSender sender = new GMailSender("*********","*******");
// sender.addAttachment(mFilePath);
sender.sendMail("Test mail","This mail has been sent from android app along with attachment", "*******","********");
Log.v("MainActivity", "Your mail has been sent…");
} catch (Exception e) {
e.printStackTrace();
}
}
}).start();
}
@Override
public void onClick(View v) {
Log.e(">>", "Button clicked");
sendEmail();
}
}
JSSEProvider.java
import android.util.Log;
import java.security.AccessController;
import java.security.Provider;
public final class JSSEProvider extends Provider {
private static final long serialVersionUID = 1L;
public JSSEProvider() {
super("HarmonyJSSE", 1.0, "Harmony JSSE Provider");
AccessController
.doPrivileged(new java.security.PrivilegedAction<Void>() {
public Void run() {
Log.e(">>","Inside JSSEPROVIDER");
put("SSLContext.TLS",
"org.apache.harmony.xnet.provider.jsse.SSLContextImpl");
put("Alg.Alias.SSLContext.TLSv1", "TLS");
put("KeyManagerFactory.X509",
"org.apache.harmony.xnet.provider.jsse.KeyManagerFactoryImpl");
put("TrustManagerFactory.X509",
"org.apache.harmony.xnet.provider.jsse.TrustManagerFactoryImpl");
return null;
}
});
}
}
GMailSender.java
package com.example.android.emailverification;
import android.util.Log;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.Security;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
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;
public class GMailSender extends javax.mail.Authenticator {
private String mailhost = "smtp.gmail.com";
private String user;
private String password;
private Session session;
private Multipart _multipart = new MimeMultipart();
static {
Log.e(">>", "inside multipart");
Security.addProvider(new JSSEProvider());
}
public GMailSender(String user, String password) {
this.user = user;
this.password = password;
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "587");
props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.host", mailhost);
Log.e(">>", "properties set");
session = Session.getDefaultInstance(props, this);
Log.e(">>","Session get");
}
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user, password);
}
/**
* Use
* {@link #sendMail(String subject, String body, String sender, String recipients)}
*
*/
public synchronized void sendMail(String subject, String body,
String sender, String recipients) throws Exception {
try {
Log.e(">>", subject + "\n" + body + "\n" + sender + "\n" + recipients);
MimeMessage message = new MimeMessage(session);
DataHandler handler = new DataHandler(new ByteArrayDataSource(
body.getBytes(),"text/plain"));
message.setSender(new InternetAddress(sender));
message.setSubject(subject);
message.setDataHandler(handler);
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(body);
_multipart.addBodyPart(messageBodyPart);
// Put parts in message
message.setContent(_multipart);
if (recipients.indexOf(",") > 0) {
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(recipients));
} else {
message.setRecipient(Message.RecipientType.TO,
new InternetAddress(recipients));}
Transport.send(message);
} catch (Exception e) {
e.printStackTrace();
}
}
public void addAttachment(String filename) throws Exception {
/* BodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(“download Pdf”);
_multipart.addBodyPart(messageBodyPart);*/
/* Message message = new MimeMessage(session);
Multipart _multipart = new MimeMultipart();
BodyPart messageBodyPart = new MimeBodyPart();
File sdCard =Environment.getExternalStorageDirectory();
String path=sdCard.getAbsolutePath() + “/pdf/”+”/test.pdf”;
messageBodyPart.setFileName(path);
messageBodyPart.setDisposition(MimeBodyPart.ATTACHMENT);
_multipart.addBodyPart(messageBodyPart);
// Put parts in message
message.setContent(_multipart);*/
BodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
_multipart.addBodyPart(messageBodyPart);
BodyPart messageBodyPart2 = new MimeBodyPart();
messageBodyPart2.setText("subject43");
_multipart.addBodyPart(messageBodyPart2);
}
public class ByteArrayDataSource implements DataSource {
private byte[] data;
private String type;
public ByteArrayDataSource(byte[] data, String type) {
super();
this.data = data;
this.type = type;
}
public ByteArrayDataSource(byte[] data) {
super();
this.data = data;
}
public void setType(String type) {
this.type = type;
}
public String getContentType() {
if (type == null)
return "application/octet-stream";
else
return type;
}
public InputStream getInputStream() throws IOException {
return new ByteArrayInputStream(data);
}
public String getName() {
return "ByteArrayDataSource";
}
public OutputStream getOutputStream() throws IOException {
throw new IOException("Not Supported");
}
}
}
日志猫
Reconstruct Branch: NOTHING
03-19 22:37:51.817 31943-32009/com.example.android.emailverification I/OpenGLRenderer: Initialized EGL, version 1.4
03-19 22:37:51.827 31943-32009/com.example.android.emailverification D/OpenGLRenderer: Enabling debug mode 0
03-19 22:37:51.907 31943-31943/com.example.android.emailverification I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@1b9c2261 time:1608595
03-19 22:38:05.427 31943-31943/com.example.android.emailverification E/>>: Button clicked
03-19 22:38:05.447 31943-32418/com.example.android.emailverification E/>>: Inside SendEmail run()
03-19 22:38:05.467 31943-32418/com.example.android.emailverification E/>>: inside multipart
03-19 22:38:05.467 31943-32418/com.example.android.emailverification E/>>: Inside JSSEPROVIDER
03-19 22:38:05.507 31943-32418/com.example.android.emailverification E/>>: properties set
03-19 22:38:05.547 31943-32418/com.example.android.emailverification E/>>: Session get
03-19 22:38:05.547 31943-32418/com.example.android.emailverification E/>>: Test mail
This mail has been sent from android app along with attachment
kumesh257@gmail.com
yadavumesh8090@gmail.com
03-19 22:38:05.567 31943-31954/com.example.android.emailverification W/art: Suspending all threads took: 6.202ms
03-19 22:38:09.267 31943-32418/com.example.android.emailverification W/System.err: javax.mail.AuthenticationFailedException
03-19 22:38:09.277 31943-32418/com.example.android.emailverification W/System.err: at javax.mail.Service.connect(Service.java:319)
03-19 22:38:09.277 31943-32418/com.example.android.emailverification W/System.err: at javax.mail.Service.connect(Service.java:169)
03-19 22:38:09.277 31943-32418/com.example.android.emailverification W/System.err: at javax.mail.Service.connect(Service.java:118)
03-19 22:38:09.277 31943-32418/com.example.android.emailverification W/System.err: at javax.mail.Transport.send0(Transport.java:188)
03-19 22:38:09.277 31943-32418/com.example.android.emailverification W/System.err: at javax.mail.Transport.send(Transport.java:118)
03-19 22:38:09.277 31943-32418/com.example.android.emailverification W/System.err: at com.example.android.emailverification.GMailSender.sendMail(GMailSender.java:104) 03-19 22:38:09.277 31943-32418/com.example.android.emailverification W/System.err: at com.example.android.emailverification.MainActivity$1.run(MainActivity.java:28)
03-19 22:38:09.277 31943-32418/com.example.android.emailverification W/System.err: at java.lang.Thread.run(Thread.java:818)
03-19 22:38:09.277 31943-32418/com.example.android.emailverification V/MainActivity: Your mail has been sent…
最佳答案
检查 list 文件中的互联网权限。
关于java - 想要在android中使用JavaMailAPI发送电子邮件。该代码工作正常并且所有信息都显示在日志中，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42889945/