Android-Java通过Javax.mail发送邮件失败 [英] Android-Java sending mail through Javax.mail failed
问题描述
我希望一切顺利.我试图从android发送邮件，但遇到了无法解决的异常.我正在使用 https://code.google.com/archive/p/javamail-android/downloads .
I hope everything is going fine. I was trying to send mail from android but getting an exception which I was unable to solve. I'm using https://code.google.com/archive/p/javamail-android/downloads.
MainClass:
try {
GMailSender sender = new GMailSender(email, password);
sender.sendMail("Forget Password",
"Hello this is your code 9986",
sender,
recvicer);
} catch (Exception e) {
Log.e("SendMail", e.getMessage(), e);
}
GMailSender
public class GMailSender extends javax.mail.Authenticator {
static {
Security.addProvider(new JSSEProvider());
}
final String emailHost = "smtp.gmail.com";
private final String user;
private final String password;
private final Session session;
public GMailSender(String user, String password) {
this.user = user;
this.password = password;
Properties props = new Properties();
props.setProperty("mail.smtp.ssl.enable", "true");
props.setProperty("mail.transport.protocol", "smtp");
props.put("mail.smtp.user", user);
props.setProperty("mail.smtp.ssl.trust", emailHost);
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", "465");
props.put("mail.smtp.starttls.enable", "true");
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.smtp.quitwait", "false");
session = Session.getInstance(props, this);
}
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user, password);
}
public synchronized void sendMail(String subject, String body, String sender, String recipients) {
try {
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);
if (recipients.indexOf(',') > 0)
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));
else
message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));
Transport transport = session.getTransport("smtp");
transport.connect(emailHost, user, password);
transport.sendMessage(message, message.getAllRecipients());
transport.close();
} catch (Exception e) {
Log.e("SendMail", e.getMessage(), e);
}
}
public static class ByteArrayDataSource implements DataSource {
private final 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() {
return new ByteArrayInputStream(data);
}
public String getName() {
return "ByteArrayDataSource";
}
public OutputStream getOutputStream() throws IOException {
throw new IOException("Not Supported");
}
}
}
例外:
E/SendMail:无法连接到SMTP主机:smtp.gmail.com，端口:465javax.mail.MessagingException:无法连接到SMTP主机:smtp.gmail.com，端口:465；嵌套的异常是:java.io.IOException:无法使用"javax.net.ssl.SSLSocketFactory"连接插座工厂到主机，端口:smtp.gmail.com，465；例外:android.os.NetworkOnMainThreadException在com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1391)在com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412)在javax.mail.Service.connect(Service.java:288)在javax.mail.Service.connect(Service.java:169)在com.xtenxion.letsplayqna.mail.GMailSender.sendMail(GMailSender.java:66)在com.xtenxion.letsplayqna.activities.ForgetPasswordActivity.onCreate(ForgetPasswordActivity.java:34)在android.app.Activity.performCreate(Activity.java:6975)在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213)在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)在android.app.ActivityThread.-wrap11(未知来源:0)在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1593)在android.os.Handler.dispatchMessage(Handler.java:105)在android.os.Looper.loop(Looper.java:164)在android.app.ActivityThread.main(ActivityThread.java:6541)在java.lang.reflect.Method.invoke(本机方法)在com.android.internal.os.Zygote $ MethodAndArgsCaller.run(Zygote.java:240)在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)由以下原因引起:java.io.IOException:无法使用"javax.net.ssl.SSLSocketFactory"进行连接；插座工厂到主机，端口:smtp.gmail.com，465；例外:android.os.NetworkOnMainThreadException在com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:178)在com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1359)在com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412)在javax.mail.Service.connect(Service.java:288)在javax.mail.Service.connect(Service.java:169)在com.xtenxion.letsplayqna.mail.GMailSender.sendMail(GMailSender.java:66)在com.xtenxion.letsplayqna.activities.ForgetPasswordActivity.onCreate(ForgetPasswordActivity.java:34)在android.app.Activity.performCreate(Activity.java:6975)在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213)在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)在android.app.ActivityThread.-wrap11(未知来源:0)在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1593)在android.os.Handler.dispatchMessage(Handler.java:105)在android.os.Looper.loop(Looper.java:164)在android.app.ActivityThread.main(ActivityThread.java:6541)在java.lang.reflect.Method.invoke(本机方法)在com.android.internal.os.Zygote $ MethodAndArgsCaller.run(Zygote.java:240)在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)造成原因:android.os.NetworkOnMainThreadException在android.os.StrictMode $ AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1448)在java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:102)在java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:90)在java.net.InetAddress.getByName(InetAddress.java:743)在java.net.InetSocketAddress(InetSocketAddress.java:231)在com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:233)在com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:163)在com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1359)在com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412)在javax.mail.Service.connect(Service.java:288)在javax.mail.Service.connect(Service.java:169)在com.xtenxion.letsplayqna.mail.GMailSender.sendMail(GMailSender.java:66)在com.xtenxion.letsplayqna.activities.ForgetPasswordActivity.onCreate(ForgetPasswordActivity.java:34)在android.app.Activity.performCreate(Activity.java:6975)在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213)在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)在android.app.ActivityThread.-wrap11(未知来源:0)在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1593)在android.os.Handler.dispatchMessage(Handler.java:105)在android.os.Looper.loop(Looper.java:164)在android.app.ActivityThread.main(ActivityThread.java:6541)在java.lang.reflect.Method.invoke(本机方法)在com.android.internal.os.Zygote $ MethodAndArgsCaller.run(Zygote.java:240)在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
E/SendMail: Could not connect to SMTP host: smtp.gmail.com, port: 465 javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465; nested exception is: java.io.IOException: Couldn't connect using "javax.net.ssl.SSLSocketFactory" socket factory to host, port: smtp.gmail.com, 465; Exception: android.os.NetworkOnMainThreadException at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1391) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412) at javax.mail.Service.connect(Service.java:288) at javax.mail.Service.connect(Service.java:169) at com.xtenxion.letsplayqna.mail.GMailSender.sendMail(GMailSender.java:66) at com.xtenxion.letsplayqna.activities.ForgetPasswordActivity.onCreate(ForgetPasswordActivity.java:34) at android.app.Activity.performCreate(Activity.java:6975) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6541) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) Caused by: java.io.IOException: Couldn't connect using "javax.net.ssl.SSLSocketFactory" socket factory to host, port: smtp.gmail.com, 465; Exception: android.os.NetworkOnMainThreadException at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:178) at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1359) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412) at javax.mail.Service.connect(Service.java:288) at javax.mail.Service.connect(Service.java:169) at com.xtenxion.letsplayqna.mail.GMailSender.sendMail(GMailSender.java:66) at com.xtenxion.letsplayqna.activities.ForgetPasswordActivity.onCreate(ForgetPasswordActivity.java:34) at android.app.Activity.performCreate(Activity.java:6975) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6541) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) Caused by: android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1448) at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:102) at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:90) at java.net.InetAddress.getByName(InetAddress.java:743) at java.net.InetSocketAddress.(InetSocketAddress.java:231) at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:233) at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:163) at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1359) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412) at javax.mail.Service.connect(Service.java:288) at javax.mail.Service.connect(Service.java:169) at com.xtenxion.letsplayqna.mail.GMailSender.sendMail(GMailSender.java:66) at com.xtenxion.letsplayqna.activities.ForgetPasswordActivity.onCreate(ForgetPasswordActivity.java:34) at android.app.Activity.performCreate(Activity.java:6975) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6541) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
推荐答案
将您的 mainclass 代码放在 AsyncTask 中.由于GMailSender无法在主线程上工作.
Place your mainclass code in AsyncTask. As GMailSender cannot work on Main Thread.
AsyncTask.execute(() -> {
try {
GMailSender sender = new GMailSender(email, password);
sender.sendMail("Forget Password",
"Hello this is your code 9986",
email,
recvicer);
} catch (Exception e) {
Log.e("SendMail", e.getMessage(), e);
}
});
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