使用Spring发送Email

最新推荐文章于 2024-12-03 15:15:55 发布

原创最新推荐文章于 2024-12-03 15:15:55 发布 · 685 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#spring #mail

spring 专栏收录该内容

1 篇文章

订阅专栏

本文介绍了如何在Spring框架中配置邮件服务，并通过Velocity模板引擎生成邮件内容。具体包括配置JavaMailSenderImpl来发送邮件、设置邮件服务器参数、定义邮件模板等步骤。

1.配置bean

import java.util.Properties;

import org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.ui.velocity.VelocityEngineFactoryBean;

@Configuration
@ComponentScan("com.zhaowq")
@PropertySource("classpath:config.properties")
public class MailConfig {

    @Bean
    public JavaMailSenderImpl mailSender(Environment env) {
        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
        mailSender.setHost(env.getProperty("mailserver.host"));
        mailSender.setPort(Integer.parseInt(env.getProperty("mailserver.port")));
        mailSender.setUsername(env.getProperty("mailserver.username"));
        mailSender.setPassword(env.getProperty("mailserver.password"));
        mailSender.setProtocol("smtp");
        Properties prop = new Properties();
        **prop.setProperty("mail.smtp.auth", "true");**
        mailSender.setJavaMailProperties(prop);
        return mailSender;
    }

    @Bean
    public VelocityEngineFactoryBean velocityEngine() {
        VelocityEngineFactoryBean velocityEngine = new VelocityEngineFactoryBean();
        Properties properties = new Properties();
        properties.setProperty("resource.loader", "class");
        properties.setProperty("class.resource.loader.class", ClasspathResourceLoader.class.getName());
        velocityEngine.setVelocityProperties(properties);
        return velocityEngine;
    }
}

2.装配和使用邮件发送器

import java.util.HashMap;
import java.util.Map;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;

import org.apache.velocity.app.VelocityEngine;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;
import org.springframework.ui.velocity.VelocityEngineUtils;

import com.zhaowq.spring.service.MailService;

@Service
public class MailServiceImpl implements MailService {
    @Autowired
    private JavaMailSender mailSender;

    @Autowired
    private VelocityEngine velocityEngine;

    @Override
    public void findPassword(String userName, String password, String email) {
        Map<String, Object> model = new HashMap<String, Object>();
        model.put("userName", userName);
        model.put("password", password);
        String emailText = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "emailTemplate.vm", "UTF-8", model);

        MimeMessage msg = mailSender.createMimeMessage();
        MimeMessageHelper helper;
        try {
            helper = new MimeMessageHelper(msg, true, "UTF-8");

            helper.setFrom("myemail@163.com");
            helper.setTo(email);
            helper.setSubject("Find password");
            helper.setText(emailText, true);
            mailSender.send(msg);
        } catch (MessagingException e) {
            Exceptions.makeThrow(ErrorConstants.EMAIL_SEND_FAIL);
        }
    }
}

该段代码使用了Velocity构建了邮件模板，emailTemplate.vm代码如下：

<html>
<body>
    亲爱的${userName}：<br><br>
 &nbsp;&nbsp;&nbsp;&nbsp;您的密码信息已重置：<br><br>
 &nbsp;&nbsp;&nbsp;&nbsp;登录名:${userName}<br><br>
 &nbsp;&nbsp;&nbsp;&nbsp;新密码：${password}<br><br>
 &nbsp;&nbsp;&nbsp;&nbsp;建议你收到邮件后尽快修改密码<br><br>
</body>
</html>