邮件未呈现 html 且格式损坏

Question

我完全不明白这个问题。如果我在运行作为 java 应用程序时从 main 方法尝试，那么邮件将以正确的主题和内容格式完美发送。而当我从 localhost 尝试时，它以损坏的格式出现，例如

------=_Part_0_1765202668.1460463643056 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit

My Content

------=_Part_0_1765202668.1460463643056--

我已经添加了所有相关的 jar(javax.mail)。不管内容是什么，它只会原样出现。这是同一段代码，在主要方法中运行良好，但不适用于本地主机。有什么想法吗？

一些相关代码

MimeMessage msg = new MimeMessage(session);
    msg.setFrom(new InternetAddress(this.from));
    if ((this.replyTo != null) && (!this.replyTo.equals("")))
        msg.setReplyTo(InternetAddress.parse(this.replyTo));
    msg.setSentDate(new Date());
    InternetAddress[] address = InternetAddress.parse(this.to);
    msg.setRecipients(Message.RecipientType.TO, address);

    if (this.cc != null) {
        InternetAddress[] address1 = InternetAddress.parse(this.cc);
        msg.setRecipients(Message.RecipientType.CC, address1);
    }

    if (this.bcc != null) {
        InternetAddress[] address2 = InternetAddress.parse(this.bcc);
        msg.setRecipients(Message.RecipientType.BCC, address2);
    }
    msg.setSubject(this.subject);

    Multipart mp = new MimeMultipart();

    MimeBodyPart mbp = new MimeBodyPart();
    mbp.setContent(this.body,"text/html;charset=utf-8");

    mp.addBodyPart(mbp);

    if (this.attachfiles != null) {
        for (Enumeration e = this.attachfiles.keys(); e.hasMoreElements();) {
            String filename = (String) e.nextElement();
            mbp = new MimeBodyPart();

            FileDataSource fds = new FileDataSource(
                    (String) this.attachfiles.get(filename));
            mbp.setDataHandler(new DataHandler(fds));
            mbp.setFileName(filename);

            mp.addBodyPart(mbp);
        }

    }

    msg.setContent(mp);

    msg.setSentDate(new Date());

    Transport.send(msg);

Answer 1

pom.xml 出现问题结果发现包有冲突。 Tomcat 自动将其自己的 JavaMail 包包含在 Web 项目中的其他两个 Jar 的 Maven 构建中，这导致了问题，而不是从标准 JavaMail jar 导入。

只排除以下jar

    <dependency>
    <groupId>org.apache.ws.commons.axiom</groupId>
    <artifactId>axiom-api</artifactId>
    <version>1.2.7</version>
    <exclusions>
        <exclusion>
            <artifactId>geronimo-javamail_1.4_spec</artifactId>
            <groupId>org.apache.geronimo.specs</groupId>
        </exclusion>
        <exclusion>
            <artifactId>geronimo-activation_1.1_spec</artifactId>
            <groupId>org.apache.geronimo.specs</groupId>
        </exclusion>
    </exclusions>
    </dependency>

邮件未呈现 html 且格式损坏

mail not rendering html and coming in broken format

java

mime

jakarta-mail