在Java中将现有HTML文件的内容原样发送到电子邮件正文中,可以通过以下步骤实现:
以下是一个示例代码:
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
public class SendHtmlEmail {
public static void main(String[] args) {
// 读取HTML文件的内容
String htmlContent = readHtmlFile("path/to/html/file.html");
// 创建邮件内容
MimeMessage message = createEmail(htmlContent);
// 发送邮件
sendEmail(message);
}
private static String readHtmlFile(String filePath) {
StringBuilder content = new StringBuilder();
try {
File file = new File(filePath);
BufferedReader reader = new BufferedReader(new FileReader(file));
String line;
while ((line = reader.readLine()) != null) {
content.append(line);
}
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
return content.toString();
}
private static MimeMessage createEmail(String htmlContent) {
Properties properties = System.getProperties();
properties.setProperty("mail.smtp.host", "smtp.example.com"); // 设置邮件服务器地址
properties.setProperty("mail.smtp.port", "25"); // 设置邮件服务器端口号
Session session = Session.getDefaultInstance(properties);
try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress("sender@example.com")); // 设置发件人
message.addRecipient(Message.RecipientType.TO, new InternetAddress("recipient@example.com")); // 设置收件人
message.setSubject("HTML Email"); // 设置邮件主题
Multipart multipart = new MimeMultipart();
MimeBodyPart htmlPart = new MimeBodyPart();
htmlPart.setContent(htmlContent, "text/html"); // 设置HTML内容
multipart.addBodyPart(htmlPart);
message.setContent(multipart);
return message;
} catch (MessagingException e) {
e.printStackTrace();
}
return null;
}
private static void sendEmail(MimeMessage message) {
try {
Transport.send(message);
System.out.println("Email sent successfully.");
} catch (MessagingException e) {
e.printStackTrace();
}
}
}
请注意,上述示例代码中的邮件服务器地址和端口号需要根据实际情况进行设置。另外,还需要添加JavaMail API的相关依赖库到项目中。
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