Java系列-封装Email发送邮件工具类

准备工作

• 进入到QQ邮箱首页-> 设置-> 账户->POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务
• 点击生成授权码生成如下图所示复制蓝框内容备用

正式开始

POM

<!-- commons email -->
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-email</artifactId>
    <version>1.5</version>
</dependency>

配置基类

• EmailConfig.java

package com.starter.config.properties;

import org.apache.commons.mail.DefaultAuthenticator;
import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.SimpleEmail;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
 * 邮件配置基类
 * <p>Title: EmailConfiguration</p>
 * 
 * @author cangbao
 * @date 2019-10-07 1:52
 * @package com.starter.config.properties
 */
@Configuration
public class EmailConfig {
	// 发件服务器
    private static final String EMAIL_HOSTNAME = "smtp.qq.com";
    // SSL端口
    private static final Integer EMAIL_PORT = 465;
    // 账户
    private static final String EMAIL_USERNAME = "862861159@qq.com";
    // 生成的授权码
    private static final String EMAIL_PASSWORD = "qhjoadlcbkqrbcjd";

    @Bean
    public static SimpleEmail initSimpleEmail() throws EmailException {
        SimpleEmail email = new SimpleEmail();
        email.setHostName(EMAIL_HOSTNAME);
        email.setSmtpPort(EMAIL_PORT);
        email.setAuthenticator(new DefaultAuthenticator(EMAIL_USERNAME, EMAIL_PASSWORD));
        // 必须开启
        email.setSSLOnConnect(true);
        // 发送人账户
        email.setFrom(EMAIL_USERNAME);
        return email;
    }
}

配置发送邮件工具类

• EmailSendUtils.java

package com.starter.config.utils;

import com.starter.config.properties.EmailConfig;
import org.apache.commons.mail.Email;
import org.apache.commons.mail.EmailException;
import org.springframework.context.annotation.Configuration;

/**
 * 发送邮件工具类
 * <p>Title: EmailSendUtils</p>
 * 
 * @author cangbao
 * @date 2019-10-07 1:21
 * @package com.starter.config.utils
 */
public class EmailSendUtils {
    /**
     * 发送邮件
     * @param subject
     * @param msg
     * @param to
     * @throws EmailException
     */
    public static void sendEmail(String subject, String msg, String... to) throws EmailException {
        Email email = EmailConfig.initSimpleEmail();
        email.setSubject(subject);
        email.setMsg(msg);
        email.addTo(to);
        email.send();
    }
}

测试结果

package com.starter.tests;

import com.starter.PageStarterApplication;
import com.starter.config.utils.EmailSendUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.mail.EmailException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

/**
 * 测试类
 * <p>Title: Tests</p>
 * 
 * @author cangbao
 * @date 2019-10-05 3:53
 * @package com.starter.tests
 */
@Slf4j
@RunWith(SpringRunner.class)
@SpringBootTest(classes = PageStarterApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class Tests {

    /**
     * // 发送邮件
     * @throws EmailException
     */
    @Test
    public void sendEmail() throws EmailException {
        long time = System.currentTimeMillis();
        log.info("开始发送");
        EmailSendUtils.sendEmail("测试邮件", "这是一条测试邮件","yph0228@163.com");
        log.info("发送耗时="+ (System.currentTimeMillis()-time)+ "ms");
    }
    
}