使用 Java 发送 HTML 电子邮件
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【中文标题】使用 Java 发送 HTML 电子邮件【英文标题】：Sending HTML email with Java 【发布时间】：2013-05-26 07:45:29 【问题描述】：我似乎无法弄清楚如何使用 java 发送 html 电子邮件 :( :( 我阅读了教程并最终得到了以下代码：
Properties props = new Properties();
props.put("mail.smtp.host", smtpServer);
props.put("mail.smtp.socketFactory.port", SSLPort);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", SSLPort);
Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator()
protected PasswordAuthentication getPasswordAuthentication()
return new PasswordAuthentication(username, pass);
);
try
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(baseEmail));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(emailTO));
message.setSubject(emailSubject);
message.setContent(schemeParsed, "text/html" ); //; charset=" + charset);
message.setSentDate(new Date());
Transport.send(message);
发送消息。我测试过：
大标题
但相反，我收到了纯文本：<html><body><h2>big caption</h2></body></html>
MIME 版本：1.0 内容类型：文本/html； charset=us-ascii 内容传输编码：7bit X-WP-AV: skaner antywirusowy poczty Wirtualnej Polski S. A. X-WP-SPAM: NO 0000000 [8ZJt]
以上内容是由我的电子邮件服务器添加的（不知何故）。而且……就是这样。不能让它工作。有什么帮助吗？
【问题讨论】：
【参考方案1】：我遇到了同样的问题，但它实际上是一个非常简单的解决方法。你所要做的就是改变
message.setContent(schemeParsed, "text/html" ); //; charset=" + charset);
到
message.setText(schemeParsed, "utf-8", "html");
然后一切都应该工作。如果你认为你的变量可能有问题，这里是我的所有代码。
import java.io.UnsupportedEncodingException;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
public class Drivers
static Scanner scanly = new Scanner(System.in);
public static String username = "your-email@your-domain.com";
public static String name = "";
public static String password = "your-password";
public static String recipient = "";
public static String subject = "";
public static String emessage = "";
public static String answer = "";
public static String count = "";
public static String wait = "";
public static boolean loop = true;
public static int countint;
public static int waitint;
public static void main(String[] args) throws UnsupportedEncodingException, InterruptedException
print("Hi! Welcome! Please begin by entering the recipient: ");
recipient = scanly.nextLine();
print("What would you like your name to be?");
name = scanly.nextLine();
print("What would you like the subject line to be?");
subject = scanly.nextLine();
print("Please enter the message:");
emessage = scanly.nextLine();
Properties props = new Properties();
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.host", "smtp.mail.yahoo.com");
props.put("mail.smtp.port", "25");
Session session = Session.getInstance(props,
new javax.mail.Authenticator()
protected PasswordAuthentication getPasswordAuthentication()
return new PasswordAuthentication(username, password);
);
print("Recipient: " + recipient + "\nSubject: " + subject + "\nMessage: " + emessage);
while(loop)
print("Type 's' to send the message, 'c' to cancel, 'n' to change the message/subject, or 'sp' to choose how many.");
answer = scanly.nextLine();
if(answer.toLowerCase().equals("s"))
print("Establishing connection..");
MimeMessage message = new MimeMessage(session);
try
print("Setting up defaults..");
message.setFrom(new InternetAddress(username, name));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipient));
message.setSubject(subject);
message.setText(emessage, "utf-8", "html");
print("Sending..");
Transport.send(message);
catch (MessagingException e)
e.printStackTrace();
print("Sent!");
print("Pausing..");
else if(answer.toLowerCase().equals("c"))
print("Bye!");
System.exit(0);
else if(answer.toLowerCase().equals("n"))
main(args);
else if(answer.toLowerCase().equals("sp"))
print("How many times?");
count = scanly.nextLine();
countint = Integer.parseInt(count);
print("What would you like the wait time to be? (Recommended is 4000-10000)");
wait = scanly.nextLine();
waitint = Integer.parseInt(wait);
for (int i = 0; i < countint;
print("Establishing connection..");
Message message = new MimeMessage(session);
try
print("Setting up defaults..");
message.setFrom(new InternetAddress(username, name));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipient));
message.setSubject(subject);
message.setText(emessage);
print("Sending..");
Transport.send(message);
catch (MessagingException e)
e.printStackTrace();
print("Sent!");
Thread.sleep(waitint);
else
print("Error..");
public static void print(String ttp)
System.out.println(ttp);
无论如何，如果有任何问题或任何事情，请通过 drenagem-github@outlook.com 给我发电子邮件
【讨论】：
【参考方案2】：这行得通吗？
MimeBodyPart bodyPart = new MimeBodyPart();
bodyPart.setText(unescapeHtml(messageString));
multipart.addBodyPart(bodyPart);
这里，unescapeHtml(...) 是您选择的一些 unescape 方法，MimeBodyPart 是 javax.mail.internet.MimeBodyPart，我假设您已经在使用 javax.mail.internet.MimeMessage
【讨论】：
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