附件文件名get';从JAVA mail发送到IMAP邮箱时发生了更改
我正在通过JAVA mail发送带有excel附件文件的邮件。每当我将电子邮件发送到IMAP邮箱时,它的文件名都会更改为无标题附件,这与我为其他邮箱传递的文件名相反 我已经联系了我提供的电子邮件,他们怀疑这是RFC 2231中默认格式为JAVa mail的格式问题,对于IMAP,它必须是RFC 2047/2231 注意:应用程序是使用Java8部署在Widfly 9上的 下面是我如何调用该方法的:附件文件名get';从JAVA mail发送到IMAP邮箱时发生了更改,java,jakarta-mail,wildfly-9,Java,Jakarta Mail,Wildfly 9,我正在通过JAVA mail发送带有excel附件文件的邮件。每当我将电子邮件发送到IMAP邮箱时,它的文件名都会更改为无标题附件,这与我为其他邮箱传递的文件名相反 我已经联系了我提供的电子邮件,他们怀疑这是RFC 2231中默认格式为JAVa mail的格式问题,对于IMAP,它必须是RFC 2047/2231 注意:应用程序是使用Java8部署在Widfly 9上的 下面是我如何调用该方法的: ByteArrayOutputStream baos = new ByteArrayOutputS
ByteArrayOutputStream baos = new ByteArrayOutputStream(excel_bytes.length);
baos.write(excel_bytes, 0, excel_bytes.length);
DataSource aAttachment = new ByteArrayDataSource(baos.toByteArray(),"application/vnd.ms-excel");
String to_email = tenant.getEmail();
email.sendRechargeBillEmail(to_email, aAttachment, file_name + ".xlsx",tenant.getCompanyName(), String.valueOf(job.getStartDate()), String.valueOf(job.getEndDate()));
这是一个具有电子邮件方法的类:
包com.nextcontrols.com
import java.awt.Color;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
import java.util.logging.Logger;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
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;
import javax.mail.internet.MimeUtility;
public class SendAttachmentInEmail {
private static final Logger logger =
Logger.getLogger(SendAttachmentInEmail.class.getCanonicalName());
public void sendEmail(String to_email, DataSource attachment, String
file_name, String from_email, String user_name, String password, String
email_body, String email_subject) {
Properties props = new Properties();
props.put("mail.smtp.host", "mail2.nextcontrols.local");
Session session = Session.getDefaultInstance(props);
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(from_email));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to_email));
message.setSubject(email_subject);
MimeBodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setContent(email_body, "text/html; charset=utf-8");
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messageBodyPart);
MimeBodyPart mailattachment = new MimeBodyPart();
DataSource source = attachment;
mailattachment.setFileName(file_name);
mailattachment.setDataHandler(new DataHandler(source));
mailattachment.setDisposition(MimeBodyPart.ATTACHMENT);
multipart.addBodyPart(mailattachment);
message.setContent(multipart);
Transport.send(message);
logger.info("////// Sent message successfully to "+ to_email);
} catch (MessagingException e) {
throw new RuntimeException(e);
}
}
public void sendRechargeBillEmail(String to_email, DataSource attachment, String file_name,String tenant_name, String start_date, String end_date){
String subject = "Billing - " + tenant_name + " - " + start_date + " to " + end_date;
String bodyText = "Please find attached your utility recharge bill for " + start_date + " to " + end_date;
String note = "<i>This is an automated email, please do not reply to this address</i>";
String fromText = "Regards,<br />-- <br />";
String disclaimerTop = "Privacy and Confidentiality Notice";
String disclaimerDown = " txt";
bodyText = bodyText + "<br /> <br /> <br />" + note + "<br />" + fromText + "<br />" + addColor (disclaimerTop, Color.GRAY ,"2") + "<br />" + addColor(disclaimerDown, Color.GRAY, "1");
sendEmail(to_email, attachment, file_name, "noreply@nxt.com", "Billing", "billing", bodyText, subject);
}
public static String addColor(String msg, Color color, String size) {
String hexColor = String.format("#%06X", (0xFFFFFF & color.getRGB()));
String colorMsg = "<FONT size = \" "+ size +"\" COLOR=\"" + hexColor + "\">" + msg + "</FONT>";
return colorMsg;
}
}
导入java.awt.Color;
导入java.io.ByteArrayOutputStream;
导入java.io.UnsupportedEncodingException;
导入java.util.Properties;
导入java.util.logging.Logger;
导入javax.activation.DataHandler;
导入javax.activation.DataSource;
导入javax.mail.BodyPart;
导入javax.mail.Message;
导入javax.mail.MessaginException;
导入javax.mail.Multipart;
导入javax.mail.PasswordAuthentication;
导入javax.mail.Session;
导入javax.mail.Transport;
导入javax.mail.internet.InternetAddress;
导入javax.mail.internet.MimeBodyPart;
导入javax.mail.internet.mimessage;
导入javax.mail.internet.MimeMultipart;
导入javax.mail.internet.mime实用程序;
公共类SendAttachmentInEmail{
专用静态最终记录器=
getLogger(SendAttachmentInEmail.class.getCanonicalName());
public void sendmail(字符串到_电子邮件、数据源附件、字符串
文件名、电子邮件中的字符串、字符串用户名、字符串密码、字符串
电子邮件(正文、字符串电子邮件(主题){
Properties props=新属性();
put(“mail.smtp.host”、“mail2.nextcontrols.local”);
Session Session=Session.getDefaultInstance(props);
试试{
Message Message=新的mimessage(会话);
message.setFrom(新的Internet地址(来自电子邮件));
message.setRecipients(message.RecipientType.TO,
InternetAddress.parse(to_email));
message.setSubject(电子邮件主题);
MimeBodyPart messageBodyPart=新的MimeBodyPart();
setContent(email_body,“text/html;charset=utf-8”);
Multipart Multipart=新的MimeMultipart();
multipart.addBodyPart(messageBodyPart);
MimeBodyPart邮件附件=新的MimeBodyPart();
数据源=附件;
mailattachment.setFileName(文件名);
setDataHandler(新的DataHandler(源));
mailattachment.setDisposition(MimeBodyPart.ATTACHMENT);
多部分addBodyPart(邮件附件);
message.setContent(多部分);
传输。发送(消息);
logger.info(“//已成功将消息发送到”+收件人电子邮件);
}捕获(消息异常e){
抛出新的运行时异常(e);
}
}
公用邮件(字符串到电子邮件、数据源附件、字符串文件名、字符串租户名、字符串开始日期、字符串结束日期){
字符串subject=“计费-”+租户名称+“-”+开始日期+”到“+结束日期”;
String bodyText=“请查看随附的“+开始日期+”至“+结束日期”的公用事业充电账单;
String note=“这是一封自动电子邮件,请不要回复此地址”;
String fromText=“问候,
--
”;
String discreatertop=“隐私和保密通知”;
字符串disclaiderdown=“txt”;
bodyText=bodyText+“
”+note+“
”+fromText+“
”+addColor(免责声明,Color.GRAY,“2”)+“
”+addColor(免责声明,Color.GRAY,“1”);
发送电子邮件(发送电子邮件、附件、文件名、noreply@nxt.com“,”账单“,”账单“,”正文,主题);
}
公共静态字符串addColor(字符串消息、颜色、字符串大小){
String-hexColor=String.format(“#%06X”),(0xFFFFFF&color.getRGB());
字符串colorMsg=“”+msg+”;
返回colorMsg;
}
}
如果您的IMAP服务器因为不理解RFC 2231而更改文件名,那么它确实需要更新。RFC 2231已有20年历史
通过将JavaMail系统属性设置为“false”,可以禁用使用RFC 2231对文件名进行编码。我尝试添加该属性,如:Properties props=new Properties();props.put(“mail.mime.encodeparameters”、“false”);put(“mail.mime.encodefilename”,“true”);Session Session=Session.getDefaultInstance(props);以及类似的:System.setProperty(“mail.mime.encodeparameters”、“false”);System.setProperty(“mail.mime.encodefilename”、“true”);但是没有任何区别,系统属性是在第一次加载JavaMail类时读取的,所以您需要在JVM启动时设置它们。如果您在Wildfly下运行,那么可能是其他东西首先加载了类。尝试在Wildfly启动中设置它们。感谢您的帮助。当我在Wildfly的standalone.conf.bat中设置这个属性时,它起作用了,比如:set“JAVA_OPTS=%JAVA_OPTS%-Dmail.mime.encodeparameters=false”太棒了!并且一定要告诉你的电子邮件提供商他们需要升级他们的服务器!