以Java发送/接收电子邮件 [英] sending/ receiving email in Java
问题描述
我想通过Java发送电子邮件(任何来自yahoo,gmail或任何其他部分的电子邮件)。
I want to send email through Java (Any email like from yahoo, gmail, or any other part).
我尝试了代码给这里,但是我收到例外:
I tried the code give here, however I get exception as
javax.mail.MessagingException: Could not connect to SMTP host: localhost, port: 25;
nested exception is:
java.net.ConnectException: Connection refused
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 myemailtesting.MyEmailTesting.main(MyEmailTesting.java:72)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:432)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:319)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:233)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1938)
... 7 more
我的代码是
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package myemailtesting;
/**
*
* @author xxxx
*/
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class MyEmailTesting {
public static void main(String[] args) {
System.out.println("This is EMAIL testing!!!");
// Recipient's email ID needs to be mentioned.
String to = "xx@gmail.com";
// Sender's email ID needs to be mentioned
String from = "xx@gmail.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties
System.out.println("test 001");
Properties properties = System.getProperties();
System.out.println("test 002");
// Setup mail server
System.out.println("test 003");
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
System.out.println("test 004");
Session session = Session.getDefaultInstance(properties);
try {
// Create a default MimeMessage object.
System.out.println("test 005");
MimeMessage message = new MimeMessage(session);
System.out.println("test 006");
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
System.out.println("test 007");
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
System.out.println("test 008");
// Set Subject: header field
message.setSubject("This is the Subject Line!");
System.out.println("test 009");
// Now set the actual message
message.setText("This is actual message");
System.out.println("test 010");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException mex) {
mex.printStackTrace();
}
}
}
使用stateement作为 System.out.println(test 00X);
For de-bugging I was using stateement as System.out.println("test 00X");
我输出为
This is EMAIL testing!!!
test 001
test 002
test 003
test 004
test 005
test 006
test 007
test 008
test 009
test 010
javax.mail.MessagingException: Could not connect to SMTP host: localhost, port: 25;
我尝试过很多代码,但没有得到任何输出。得到一些例外。
I tried many codes but I am not getting any output. Getting some exception.
我在某个地方看到,我需要保持SMTP服务器UP。我不知道需要做什么我相信apache commons将是很好的选择。
I see at some place, I need to keep SMTP server UP. I don't know what needs to be done. I believe apache commons will be good option.
可以帮助我在下面的步骤
Could someone help me in below steps
- 需要的jar文件
- 如何设置smptp
- 发送电子邮件(从任何网站,即从yahoo或gmail或任何私人电子邮件ID )
OR
在java中发送电子邮件的一步一步的过程。
OR
step by step process for sending email in java...
推荐答案
尝试这个...它的工作...
Try this... its working...
import org.apache.commons.mail.*;
public class EmailTest {
public static void main(String[] args) {
try {
Email email = new SimpleEmail();
email.setSmtpPort(587);
email.setAuthenticator(new DefaultAuthenticator("emailid@gmail.com",
"yourPassword"));
email.setDebug(true);
email.setHostName("smtp.gmail.com");
email.setFrom("emailid@gmail.com");
email.setSubject("Hi");
email.setMsg("This is a test mail ... :-)");
email.addTo("senderId@yahoo.co.in");
email.setTLS(true);
email.send();
System.out.println("Mail sent!");
} catch (Exception e) {
System.out.println("Exception :: " + e);
}
}
}
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