我正在尝试将Microsoft Word文档的内容从Java代码中放入电子邮件正文中，但却出现以下错误：
Exception in thread "main" java.lang.RuntimeException: javax.mail.MessagingException: IOException while sending message;
nested exception is:
javax.activation.UnsupportedDataTypeException: no object DCH for MIME type application/msword
at co.kush.DemoEmail.main(DemoEmail.java:134)
Caused by: javax.mail.MessagingException: IOException while sending message;
nested exception is:
javax.activation.UnsupportedDataTypeException: no object DCH for MIME type application/msword
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:625)
at co.kush.DemoEmail.main(DemoEmail.java:128)
Caused by: javax.activation.UnsupportedDataTypeException: no object DCH for MIME type application/msword
at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:896)
at javax.activation.DataHandler.writeTo(DataHandler.java:317)
at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1350)
参考我的代码：
package co.kush;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.extractor.WordExtractor;
import org.apache.poi.hwpf.usermodel.CharacterRun;
/**
* @author Kush
*
*/
public class DemoEmail {
public static void main(String[] args) throws FileNotFoundException, IOException {
Properties prop = new Properties();
String Filepath = "Email.Properties";
FileInputStream propFile = new FileInputStream(Filepath);
prop.load(propFile);
String timeStamp = new SimpleDateFormat("M/dd @ HH:mm:ss").format(Calendar.getInstance().getTime());
// Fetching values from property file
String sender = prop.getProperty("sender");
String recevier = prop.getProperty("recevier");
String password = prop.getProperty("password");
String proxyHost = prop.getProperty("proxyHost");
String proxyPort = prop.getProperty("proxyPort");
String smtpHost = prop.getProperty("smtpHost");
String smtpPort = prop.getProperty("smtpPort");
String attachFilePath = prop.getProperty("attachFilePath");
String mailSubject=prop.getProperty("mailSubject")+" on " + timeStamp;
String mailBody = prop.getProperty("mailBody");
Properties sys_prop = System.getProperties();
// Setting values for sending Email
sys_prop.put("mail.smtp.starttls.enable", "true");
sys_prop.put("mail.transport.protocol", "SMTP");
sys_prop.put("mail.smtp.host", smtpHost);
sys_prop.put("mail.smtp.auth", "true");
sys_prop.put("mail.smtp.port", smtpPort);
sys_prop.put("mail.smtp.debug", "true");
sys_prop.put("mail.smtp.socketFactory.port", smtpPort);
sys_prop.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
sys_prop.put("mail.smtp.socketFactory.fallback", "false");
sys_prop.put("proxySet", "true");
sys_prop.put("proxyPort", proxyPort);
sys_prop.put("socksProxyHost", proxyHost);
sys_prop.put("proxyHost", proxyHost);
Session session = Session.getDefaultInstance(sys_prop, null);
try {
//Adding Sender/Receiver address and Subject Line
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(sender));
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(recevier));
msg.setSubject(mailSubject);
MimeBodyPart messageBodyPart=new MimeBodyPart();
Multipart multipart = new MimeMultipart();
//Reading Word Document
HWPFDocument doc = new HWPFDocument(new FileInputStream("<AbsolutePathWordDoc\\<WordDocFile>.doc"));
WordExtractor we = new WordExtractor(doc);
String[] paragraphs = we.getParagraphText();
for (String para : paragraphs) {
//Putting word document to email Body
messageBodyPart.setContent(paragraphs, "application/msword");
multipart.addBodyPart(messageBodyPart);
}
//Adding attachment and Body content to MIME msg object
msg.setContent(multipart);
//Sending the message
Transport transport = session.getTransport("smtp");
transport.connect(smtpHost, sender, password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
System.out.println("Mail sent succesfully!");
} catch (MessagingException e) {
throw new RuntimeException(e);
} finally {
//Removing System properties
sys_prop.remove("proxySet");
sys_prop.remove("proxyHost");
sys_prop.remove("proxyPort");
sys_prop.remove("socksProxyHost");
sys_prop.remove("mail.smtp.socketFactory.class");
sys_prop.remove("mail.smtp.socketFactory.fallback");
sys_prop.remove("mail.smtp.socketFactory.port");
}
}
}
属性文件'Email.Properties'：
sender=helloqa86@gmail.com
recevier=k.b@xx.com
password=*****
proxyHost=web-proxy.**.**.com
proxyPort= 8080
smtpHost=smtp.gmail.com
smtpPort=465
从错误中我可以理解问题出在这一部分 messageBodyPart.setContent（paragraph，“application / msword”）; 我将word文档内容添加到MIME邮件正文部分。
我已经尝试了其他几种方法来实现这一目标，但却无法做到这一点。请建议一种方法来实现这一目标？
答案 0 :(得分：0)
我得到了解决这个问题的解决方案。实际上，我必须在电子邮件正文中添加不同的字体和字体大小，我试图从word文档中读取。为了实现这一点，我改变了我的方法，所以不是word文档我已经将我的内容嵌入到html标签中，这非常简单:)，请参考以下代码行代替word文档部分
String htmltext =“+ 不同的字体大小
+ 不同的字体大小+ “; messageBodyPart.setContent（htmltext，“text / html”）;
在我的研究期间，我的一位朋友建议我使用第三方API，它可能对任何人都有帮助
http://www.oracle.com/technetwork/java/javamail/third-party-136965.html