我们在尝试从我们的Java应用程序发送电子邮件时遇到问题。 我们在Netbeans Wiki上发现了一些实现邮件发送者的代码，
我们在尝试连接到源邮件（gmail）时收到错误消息。 我们是否需要编辑我们的Gmail帐户中的任何设置？
谢谢， 约翰尼
StackTrace:
SEVERE: javax.mail.AuthenticationFailedException: 535-5.7.1 Username and Password not accepted. Learn more at
535 5.7.1 http://mail.google.com/support/bin/answer.py?answer=14257 r21sm5698680bkj.22
at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:648)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:583)
at javax.mail.Service.connect(Service.java:313)
at javax.mail.Service.connect(Service.java:172)
at javax.mail.Service.connect(Service.java:121)
at javax.mail.Transport.send0(Transport.java:190)
at javax.mail.Transport.send(Transport.java:120)
at jMail.Mail.sendMail(Mail.java:115)
at org.apache.jsp.sendMail_jsp._jspService(sendMail_jsp.java from :82)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:406)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:483)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:373)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:619)
INFO: Exception javax.mail.AuthenticationFailedException: 535-5.7.1 Username and Password not accepted. Learn more at
535 5.7.1 r21sm5698680bkj.22
代码：
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package jMail;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
/**
*
* @author yaldaag
*/
public class Mail {
private String to;
private String from;
private String message;
private String subject;
private String smtpServ;
/**
* @return the to
*/
public String getTo() {
return to;
}
/**
* @param to the to to set
*/
public void setTo(String to) {
this.to = to;
}
/**
* @return the from
*/
public String getFrom() {
return from;
}
/**
* @param from the from to set
*/
public void setFrom(String from) {
this.from = from;
}
/**
* @return the message
*/
public String getMessage() {
return message;
}
/**
* @param message the message to set
*/
public void setMessage(String message) {
this.message = message;
}
/**
* @return the subject
*/
public String getSubject() {
return subject;
}
/**
* @param subject the subject to set
*/
public void setSubject(String subject) {
this.subject = subject;
}
/**
* @return the smtpServ
*/
public String getSmtpServ() {
return smtpServ;
}
/**
* @param smtpServ the smtpServ to set
*/
public void setSmtpServ(String smtpServ) {
this.smtpServ = smtpServ;
}
public int sendMail(){
try
{
Properties props = System.getProperties();
// -- Attaching to default Session, or we could start a new one --
props.put("mail.transport.protocol", "smtp" );
props.put("mail.smtp.starttls.enable","true" );
props.put("mail.smtp.host",smtpServ);
props.put("mail.smtp.auth", "true" );
Authenticator auth = new SMTPAuthenticator();
Session session = Session.getInstance(props, auth);
// -- Create a new message --
Message msg = new MimeMessage(session);
// -- Set the FROM and TO fields --
msg.setFrom(new InternetAddress(from));
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false));
msg.setSubject(subject);
msg.setText(message);
// -- Set some other header information --
msg.setHeader("MyMail", "Mr. XYZ" );
msg.setSentDate(new Date());
// -- Send the message --
Transport.send(msg);
System.out.println("Message sent to"+to+" OK." );
return 0;
}
catch (Exception ex)
{
ex.printStackTrace();
System.out.println("Exception "+ex);
return -1;
}
}
private class SMTPAuthenticator extends javax.mail.Authenticator {
@Override
public PasswordAuthentication getPasswordAuthentication() {
String username = "Java.Mail.MyEmail@gmail.com"; // specify your email id here (sender's email id)
String password = "Mypassword"; // specify your password here
return new PasswordAuthentication(username, password);
}
}
}
答案 0 :(得分：1)
缺少各种属性（请参阅您没有的内容）：
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "465");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
props.put("mail.smtp.socketFactory.port", "465");
实质上，如果您想安全地访问SMTP，POP3，IMAP，则必须为各自的邮件协议设置 SocketFactory 。
不要忘记GMail在安全层上进行身份验证（因此mail.smtp.socketFactory.fallback设置为false）。
请参阅JavaWorld上安全JavaMail 上的示例。
答案 1 :(得分：0)
您是否必须在SMTPAuthenticator中设置登录名和密码？