java - 此代码有什么问题

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我收到编译器错误。有人可以调试吗？

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
public class SendMail
{
  public static void main(String [] args)
  {
    SendMail sm=new SendMail();
     sm.postMail("[e-mail]","hi","hello","[e-mail]");
   }

public void postMail( String recipients[ ], String subject, String message , String from) throws MessagingException
{
    boolean debug = false;

     //Set the host smtp address
     Properties props = new Properties();
     props.put("mail.smtp.host", "webmail.emailmyname.com");

    // create some properties and get the default Session
    Session session = Session.getDefaultInstance(props, null);
    session.setDebug(debug);

    // create a message
    Message msg = new MimeMessage(session);

    // set the from and to address
    InternetAddress addressFrom = new InternetAddress(from);
    msg.setFrom(addressFrom);

    InternetAddress[] addressTo = new InternetAddress[recipients.length];
    for (int i = 0; i < recipients.length; i++)
    {
        addressTo[i] = new InternetAddress(recipients[i]);
    }
    msg.setRecipients(Message.RecipientType.TO, addressTo);


    // Optional : You can also set your custom headers in the Email if you Want
    msg.addHeader("MyHeaderName", "myHeaderValue");

    // Setting the Subject and Content Type
    msg.setSubject(subject);
    msg.setContent(message, "text/plain");
    Transport.send(msg);
}
}

最佳答案

您的postMail函数期望第一个参数recipients是字符串数组，但是在您的主要方法中，您正在传递字符串文字。编译器告诉您无法找到与参数列表（如postMail）匹配的(String, String, String, String)方法的版本。

尝试像这样调用它：

sm.postMail(new String[]{"[e-mail]"},"hi","hello","[e-mail]");

另一个想法是，如果您打算经常这样做，则可以重载postMail方法的版本。

关于java - 此代码有什么问题，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/2723809/