Spring spring-boot-starter-mail 上的启动读取和新邮件侦听器

Question

我想在该 Web 应用程序中使用 spring boot MVC 演示 电子邮件应用程序 我遵循 this 教程我可以使用 [= 轻松发送电子邮件33=]开机。

我的问题是

如何使用 spring 引导阅读电子邮件？
如何收听新电子邮件以及如何在视图上更新收件箱..？

请给我建议任何解决方案，因为我搜索了很多但我只能找到发送电子邮件 example.please 如果你有任何 工作样本 与我分享spring开机。提前致谢。

Answer 1

您可以考虑使用 Spring integration mail support

有一个 Java DSL 用于此目的。
可以找到 IMAP 配置示例 here

重点是这样的

@Configuration
@EnableIntegration
public class IntegrationConfig {
    ...

    @Bean
    public IntegrationFlow imapIdleFlow() {
        return IntegrationFlows
                .from(Mail.imapIdleAdapter("imap://user:pw@localhost:" + imapIdleServer.getPort() + "/INBOX")
                        .autoStartup(true)
                        .searchTermStrategy(this::fromAndNotSeenTerm)
                        .userFlag("testSIUserFlag")
                        .javaMailProperties(p -> p.put("mail.debug", "false")
                                .put("mail.imap.connectionpoolsize", "5"))
                        .shouldReconnectAutomatically(false)
                        .headerMapper(mailHeaderMapper()))
                .channel(MessageChannels.queue("imapIdleChannel"))
                .get();
    }

    @Bean
    public HeaderMapper<MimeMessage> mailHeaderMapper() {
        return new DefaultMailHeaderMapper();
    }

    private SearchTerm fromAndNotSeenTerm(Flags supportedFlags, Folder folder) {
        try {
            FromTerm fromTerm = new FromTerm(new InternetAddress("bar@baz"));
            return new AndTerm(fromTerm, new FlagTerm(new Flags(Flags.Flag.SEEN), false));
        }
        catch (AddressException e) {
            throw new RuntimeException(e);
        }

    }
}

Answer 2

如果您询问如何接收基于 Spring 引导和 mail-receiving 的 Java 库（例如 Subetha SMTP）的电子邮件，您可以检查 Receive emails with SubEtha SMTP and Spring Boot

Answer 3

package com.grandview.service;

import java.io.IOException;
import java.util.Properties;

import javax.annotation.PostConstruct;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Store;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;

import com.grandview.model.EmailConfig;
import com.grandview.util.MessageParser;

@Service
public class EmailService {
    @Autowired
    private EmailConfig emailConfig;

    Folder emailFolder;
    Store store;
    Properties properties = new Properties();

    @PostConstruct
    void setup() {
        String server = emailConfig.getHost();
        properties.put("mail.pop3.host", server);
        properties.put("mail.pop3.port", emailConfig.getPort());
        //properties.put("mail.pop3.starttls.enable", "true");
        Session emailSession = Session.getDefaultInstance(properties);
        Store store = null;
        try {
            store = emailSession.getStore("pop3s");
            store.connect(server, emailConfig.getUsername(), emailConfig.getPassword());
            emailFolder = store.getFolder("INBOX");
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }

    @Scheduled(fixedRate = 5000)
    synchronized void read() throws MessagingException, IOException {
        emailFolder.open(Folder.READ_ONLY);
        Message[] messages = emailFolder.getMessages();
        for (int i = 0; i < messages.length; i++) {
            Message message = messages[i];
            System.out.println(MessageParser.getMessageBody(message));
        }
        emailFolder.close();
    }
}

Spring spring-boot-starter-mail 上的启动读取和新邮件侦听器

Spring boot read and new mail Listener on spring-boot-starter-mail

java

spring

spring-mvc

jakarta-mail

spring-boot