使用绿色邮件模拟电子邮件 - 错误 - 无法连接到主机，端口：localhost，3025;超时-1;

Question

我试图使用greenmail和testNG模拟电子邮件测试。所以我从greenmail网站获得了代码。我试图实现它但我拒绝连接。  这是我的GreenEmail.java类

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 GreenEmail {

private final static Properties mailProperties = new Properties();
private final String imapHost;
private final int imapPort;

public GreenEmail(String smtpHost, int smtpPort,
                    String imapHost, int imapPort,
                    String user, String password) {
    this.imapHost = imapHost;
    this.imapPort = imapPort;
    mailProperties.setProperty("mail.smtp.host", smtpHost);
    mailProperties.setProperty("mail.smtp.port", Integer.toString(smtpPort));
    mailProperties.setProperty("mail.user", "bar@example.com");
    mailProperties.setProperty("mail.password", "secret-pwd");
    mailProperties.setProperty("mail.store.protocol", "imap");
}

/*sendEmail method which takes following parameters
 * to- email to which we send an email
 * from-email from which we send an email
 * subject-subject of the email we send
 * content-message that we send in our email*/
public void sendMail(String to, String from, String subject,
                     String content) throws MessagingException {

    Session session = Session.getDefaultInstance(mailProperties);

    MimeMessage message = new MimeMessage(session);
    message.setFrom(new InternetAddress(from));
    message.setRecipients(Message.RecipientType.TO, to);
    message.setSubject(subject);
    message.setText(content);

    Transport.send(message);
}`

我有一个testNg类来测试这个发送电子邮件测试。

import java.io.IOException;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.icegreen.greenmail.user.GreenMailUser;
import com.icegreen.greenmail.util.GreenMail;
import com.icegreen.greenmail.util.ServerSetupTest;
import com.sun.mail.imap.IMAPStore;
public class TestMail { 
@Test
public void test() throws MessagingException, IOException{
    GreenMail greenMail = new GreenMail(ServerSetupTest.SMTP_IMAP);
    GreenMailUser greenMailUser = greenMail.setUser("bar@example.com", "bar@example.com", "secret-pwd");
     GreenEmail mailingClass = new GreenEmail(
                "localhost", ServerSetupTest.SMTP.getPort(),
                "localhost", ServerSetupTest.IMAP.getPort(),
                greenMailUser.getLogin(), greenMailUser.getPassword());
String to = "receiver@testmailingclass.net";
    String from = greenMailUser.getEmail();
    String subject = "Sending test";
    String content = "This content should be sent by the user.";

    Session smtpSession = greenMail.getSmtp().createSession();

    Message msg = new MimeMessage(smtpSession);
    msg.setFrom(new InternetAddress("foo@example.com"));
    msg.addRecipient(Message.RecipientType.TO, new InternetAddress("bar@example.com"));
    msg.setSubject("Email sent to GreenMail via plain JavaMail");
    msg.setText("Fetch me via IMAP");
    mailingClass.sendMail(to, from, subject, content);

    // let GreenMail create and configure a store:
    IMAPStore imapStore = greenMail.getImap().createStore();
    imapStore.connect("bar@example.com", "secret-pwd");
    Folder inbox = imapStore.getFolder("INBOX");
    inbox.open(Folder.READ_ONLY);
    Message msgReceived = inbox.getMessage(1);
    Assert.assertEquals(msg.getSubject(), msgReceived.getSubject());

    imapStore.close();

运行我的TestNg类之后，我得到了这样的堆栈跟踪。

[TestNG] Running:
C:\Users\leela krishna\AppData\Local\Temp\testng-eclipse-1553107636\testng-     customsuite.xml

[Utils] Attempting to create D:\workspace\MockEmail\test-output\Default   suite\Default test.html
[Utils]   Directory D:\workspace\MockEmail\test-output\Default suite exists: true
[Utils] Attempting to create D:\workspace\MockEmail\test-output\Default suite\Default test.xml
[Utils]   Directory D:\workspace\MockEmail\test-output\Default suite exists: true
FAILED: test
com.sun.mail.util.MailConnectException: Couldn't connect to host, port:   localhost, 3025; timeout -1;
nested exception is:
java.net.ConnectException: Connection refused: connect
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2100)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:699)
at javax.mail.Service.connect(Service.java:366)
at javax.mail.Service.connect(Service.java:246)
at javax.mail.Service.connect(Service.java:195)
at javax.mail.Transport.send0(Transport.java:254)
at javax.mail.Transport.send(Transport.java:124)
at com.qpair.qp.GreenEmail.sendMail(GreenEmail.java:46)
at com.qpair.qp.TestMail.test(TestMail.java:88)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:86)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:646)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:823)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1131)
at   org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:129)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:112)
at org.testng.TestRunner.privateRun(TestRunner.java:778)
at org.testng.TestRunner.run(TestRunner.java:632)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:366)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:361)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:319)
at org.testng.SuiteRunner.run(SuiteRunner.java:268)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1225)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1150)
at org.testng.TestNG.runSuites(TestNG.java:1075)
at org.testng.TestNG.run(TestNG.java:1047)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:126)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:137)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:58)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:331)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:238)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2066)
... 33 more

所以我没有理解这个问题。如果有人能够清楚这对我来说是一个很大的帮助。提前谢谢。