JavaMail发送Html邮件内容详解编程语言

import javax.mail.internet.InternetAddress;   
 import javax.mail.internet.MimeMessage;   
 import javax.mail.internet.MimeUtility;   
 import javax.mail.Session;   
 import javax.mail.MessagingException;   
import javax.mail.Transport;   
    
public class Test {   
     public static void sendMessage(String smtpHost,   
                                    String from, String to,   
                                    String subject, String messageText)   
             throws MessagingException,java.io.UnsupportedEncodingException {   
    
         // Step 1:  Configure the mail session   
         System.out.println("Configuring mail session for: " + smtpHost);   
         java.util.Properties props = new java.util.Properties();   
         props.setProperty("mail.smtp.auth", "true");//指定是否需要SMTP验证   
         props.setProperty("mail.smtp.host", smtpHost);//指定SMTP服务器   
         props.put("mail.transport.protocol", "smtp");   
         Session mailSession = Session.getDefaultInstance(props);   
         mailSession.setDebug(true);//是否在控制台显示debug信息   
    
         // Step 2:  Construct the message   
         System.out.println("Constructing message -  from=" + from + "  to=" + to);   
         InternetAddress fromAddress = new InternetAddress(from);   
         InternetAddress toAddress = new InternetAddress(to);   
    
         MimeMessage testMessage = new MimeMessage(mailSession);   
         testMessage.setFrom(fromAddress);   
         testMessage.addRecipient(javax.mail.Message.RecipientType.TO, toAddress);   
         testMessage.setSentDate(new java.util.Date());   
         testMessage.setSubject(MimeUtility.encodeText(subject,"gb2312","B"));   
    
        testMessage.setContent(messageText, "text/html;charset=gb2312");   
         System.out.println("Message constructed");   
    
        // Step 3:  Now send the message   
         Transport transport = mailSession.getTransport("smtp");   
         transport.connect(smtpHost, "[email protected]", "4542");   
         transport.sendMessage(testMessage, testMessage.getAllRecipients());   
         transport.close();   
    
         System.out.println("Message sent!");   
     }   
    
     public static void main(String[] args) {   
    
         String smtpHost = "smtp.163.com";   
         String from = "[email protected]";   
         String to = "[email protected]";   
         String subject = "html邮件测试"; //subject javamail自动转码   
    
         StringBuffer theMessage = new StringBuffer();   
         theMessage.append("<h2><font color=red>这倒霉孩子</font></h2>");   
         theMessage.append("<hr>");   
         theMessage.append("<i>年年失望年年望</i>");   
         try {   
            Test.sendMessage(smtpHost, from, to, subject, theMessage.toString());   
         }   
         catch (javax.mail.MessagingException exc) {   
             exc.printStackTrace();   
         }   
         catch (java.io.UnsupportedEncodingException exc) {   
             exc.printStackTrace();   
         }   
     }   
 }