Java Velocity模板无法以html格式解析和显示数据

我有一个简单的电子邮件程序，用

Java

和

Spring

编写，带有

Velocity

模板，用于格式化发送电子邮件的数据，这些数据应以

html

格式显示。但是，它只显示数据以及嵌入其中的

html

标记，而不实际解析它们

我有什么遗漏吗

EmailService.java

public class EmailService {
    private static final Log LOG = LogFactory.getLog(EmailService.class);
    private static final String EMAIL_SUBJECT = ":: Risk Assessment Job Summary Results::";
    private final MailSender mailSender;
    private final String emailRecipientAddress;
    private final String emailSenderAddress;
    private static final String ERROR_MSG = "Error while sending notification email";
    private final TemplateFactory velocityTemplateFactory;
    private Template riskAssessmentJobResultSummaryTemplate;

    public EmailService(MailSender mailSender, String emailRecipientAddress,
            String emailSenderAddress, TemplateFactory velocityTemplateFactory) {
        this.mailSender = mailSender;
        this.emailRecipientAddress = emailRecipientAddress;
        this.emailSenderAddress = emailSenderAddress;
        this.velocityTemplateFactory = velocityTemplateFactory;
    }

    public void notify(String messageBody) {
        JavaMailSender javaMailSender = (JavaMailSender)mailSender;
        MimeMessage message = javaMailSender.createMimeMessage();
        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(message);
        try {
            mimeMessageHelper.setSubject(getHostname() + " - " + EMAIL_SUBJECT);
            mimeMessageHelper.setTo(emailRecipientAddress);
            mimeMessageHelper.setFrom(emailSenderAddress);
            mimeMessageHelper.setText(getEmailContent(messageBody));
            javaMailSender.send(message);
        } catch (MailException e) {
            throw new EmailSendException(ERROR_MSG, e);
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }

    private static String getHostname() {
        try {
            return InetAddress.getLocalHost().getHostName();
        } catch (UnknownHostException e) {
            return "unknown host";
        }
    }

    private String getEmailContent(String messageBody) {
        try {
            StringWriter stringWriter = new StringWriter();
            this.riskAssessmentJobResultSummaryTemplate =
                    velocityTemplateFactory.create("velocity/risk-assessment-job-results-summary.vm");
            VelocityContext velocityContext = new VelocityContext();
            velocityContext.put("hostname", getHostname());
            velocityContext.put("messageBody", messageBody);
            this.riskAssessmentJobResultSummaryTemplate.merge(velocityContext, stringWriter);
            return stringWriter.toString();
        } catch (IOException ex) {
            LOG.error("Unable to read the email template", ex);
            return null;
        }
    }
}

风险评估工作结果摘要。vm

<h3>Summary report for Risk Assessment Job on ${hostname}:</h3>
<table style="border:none;">
    <tr><td>${messageBody}</td></tr>
</table>

---

将内容设置为html

 message.setContent(getEmailContent(messageBody), "text/html; charset=utf-8")

---

这应该是答案

mimeMessageHelper.setContent(someHtmlMessage, "text/html; charset=utf-8");

找到冒烟的枪：）

这一行更改解决了问题。此处的

true

标志表示电子邮件正文中的内容类型为

html

mimeMessageHelper.setText(getEmailContent(messageBody), true);

---

您是否尝试将该字符串发送到电子邮件？因为我认为你的程序运行得很好，这个字符串非常适合发送电子邮件！问题是电子邮件中的内容是否想知道否决投票的原因？您提出的解决方案无法解决此问题。更改需要在java代码中进行，而不是在template.ahh中！好了。我跑得太快了，想都不敢想。我只是看了一下我的程序，比较了你的模板和我的模板，认为这可能是错误的。请看

mimeMessageHelper.setContent(someHtmlMessage, "text/html; charset=utf-8");

mimeMessageHelper.setText(getEmailContent(messageBody), true);