我正在尝试创建一个发送电子邮件的函数（在eclipse中的java用户密码重置类中）。这是在学校的电脑上。我不确定这是计算机或代码的问题。它可能是计算机，因为学校对它有很多限制。但是代码也使用端口25，它应该使用587，如输出中所示。我的代码如下。
package Jframet;
import java.io.*;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.util.Properties;
import java.util.Random;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
public class serial implements java.io.Serializable
{
/**
*
*/
private static final long serialVersionUID = 1L;
private String uc;
private String pc;
private String ec;
public serial()
{
uc = "";
pc = "";
ec = "";
}
public serial(String u, String p, String e)
{
uc = u;
pc = p;
ec = e;
}
public boolean serialize(String s,serial e)
{
boolean b = true;
try {
File f = new File(s+this.uc+".ser");
String pathname = f.getPath();
FileOutputStream fileOut = new FileOutputStream(pathname);
ObjectOutputStream out = new ObjectOutputStream(fileOut);
out.writeObject(e);
out.close();
fileOut.close();
}catch(IOException i) {
i.printStackTrace();
b = false;
}
return b;
}
public boolean deserial(String u,String p)
{
boolean b = true;
serial e;
File test = new File("H:/classes/" + u + ".ser");
if(!test.exists())
{
b = false;
return b;
}
else
{
try {
FileInputStream fileIn = new FileInputStream(test);
ObjectInputStream in = new ObjectInputStream(fileIn);
e = (serial) in.readObject();
in.close();
fileIn.close();
} catch (IOException i) {
e = null;
i.printStackTrace();
b = false;
} catch (ClassNotFoundException c) {
e = null;
c.printStackTrace();
b = false;
}
String s1 = u;
String s2 = e.uc;
if(s1.compareTo(s2) == 0)
{
try{
if(!PasswordAuthentication.validatePassword(p,e.pc))
{
b = false;
}
else{}
}catch(NoSuchAlgorithmException i){ i.printStackTrace();
b = false;}
catch(InvalidKeySpecException i){ i.printStackTrace();
b = false;}
}
else
{
b = false;
}
}
return b;
}
public int emailtest(String u,String em)
{
Random r = new Random();
int b = r.nextInt(999999);
serial e;
File test = new File("H:/classes/" + u + ".ser");
if(!test.exists())
{
b = 0;
return b;
}
else
{
try {
FileInputStream fileIn = new FileInputStream(test);
ObjectInputStream in = new ObjectInputStream(fileIn);
e = (serial) in.readObject();
in.close();
fileIn.close();
} catch (IOException i) {
e = null;
i.printStackTrace();
b = 0;
} catch (ClassNotFoundException c) {
e = null;
c.printStackTrace();
b = 0;
}
if(u.compareTo(e.uc) == 0 && em.compareTo(e.ec) == 0)
{
String to = em;
String from = "168464@mcpsmd.net";
String host = "smtp.mail.com";
String port = "587";
Properties properties = System.getProperties();
properties.setProperty("mail.smtp.host", host);
properties.put("mail.smtp.socketFactory.port", port);
properties.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
properties.put("mail.smtp.socketFactory.fallback", "false");
Session session = Session.getInstance(properties, null);
try {
MimeMessage message = new MimeMessage(session);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
// Set Subject: header field
message.setSubject("Password Reset");
// Now set the actual message
message.setText(Integer.toString(b));
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
}catch (MessagingException mex) {
mex.printStackTrace();
}
}
else
{
if(u.compareTo(e.uc) != 0)
{
b = -1;
}
else
{
b = 0;
}
}
}
return b;
}
}
我的输出是
javax.mail.MessagingException: Could not connect to SMTP host: smtp.mail.com, port: 25;
nested exception is:
java.net.SocketException: Permission denied: connect
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1972)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642)
at javax.mail.Service.connect(Service.java:295)
at javax.mail.Service.connect(Service.java:176)
at javax.mail.Service.connect(Service.java:125)
at javax.mail.Transport.send0(Transport.java:194)
at javax.mail.Transport.send(Transport.java:124)
at Jframet.serial.emailtest(serial.java:165)
at Jframet.loginpage$6.mouseClicked(loginpage.java:345)
at java.awt.AWTEventMulticaster.mouseClicked(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.net.SocketException: Permission denied: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
at sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:319)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:207)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1938)
... 40 more
答案 0 :(得分：0)
您需要添加PasswordAuthentication，例如： 更新
String to = em;
String from = "168464@mcpsmd.net";
String host = "smtp.mail.com";
String port = "587";
String password = //Your email password
Properties properties = System.getProperties();
properties.put("mail.smtp.auth", "true");
properties.put("mail.smtp.starttls.enable", "true");
properties.put("mail.smtp.port", "587");
if (from.contains("hotmail")) {
properties.put("mail.smtp.host", "smtp.live.com");
} else if (from.contains("gmail")) {
properties.put("mail.smtp.host", "smtp.gmail.com");
} else if (from.contains("yahoo")) {
properties.put("mail.smtp.host", "smtp.mail.yahoo.com");
} else {
System.out.println("Please use 'Yahoo, Gmail or Hotmail")
}
Session messageSession = Session.getDefaultInstance(properties, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(from, password);
}
});
try {
MimeMessage mimeMessage = new MimeMessage(messageSession);
mimeMessage.setFrom(new InternetAddress(from));
mimeMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
mimeMessage.setSubject(subject);
mimeMessage.setText(message);
Transport.send(mimeMessage);
} catch (MessagingException e) {
System.out.println(e.getMessage());
}