1. 普通java实现邮件发送

在这里插入图片描述

1.1 创建maven项目，配置pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.it</groupId><artifactId>emailTest</artifactId><version>1.0-SNAPSHOT</version><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target></properties><dependencies>
<!--    邮箱    mail--><dependency><groupId>javax.mail</groupId><artifactId>javax.mail-api</artifactId><version>1.6.2</version></dependency><dependency><groupId>com.sun.mail</groupId><artifactId>javax.mail</artifactId><version>1.6.2</version></dependency>
<!--        测试工具 junit--><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.13.2</version><scope>test</scope></dependency></dependencies>
</project>

在这里插入图片描述

1.2 创建邮箱码值工具类

package com.it.util;public class EntityCode {//发件人邮箱public static final String USER = "自己的邮箱号";//授权码public static final String PWD = "自己的邮箱号授权码";//发送给对应的app,如果是163邮箱:smtp.163.compublic static final String HOST = "smtp.qq.com";
}

1.3 创建邮箱发送邮件的工具类

package com.it.util;import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;public class MailUtil {/*** 创建邮件消息* @return 创建的邮件消息*/private static MimeMessage createMail(){try {Properties properties = new Properties();properties.put("mail.smtp.auth",true);properties.put("mail.smtp.host", EntityCode.HOST);properties.put("mail.user",EntityCode.USER);properties.put("mail.password",EntityCode.PWD);// 构建授权信息，用于进行SMTP进行身份验证Authenticator authenticator = new Authenticator() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(EntityCode.USER, EntityCode.PWD);}};// 使用环境属性和授权信息，创建邮件会话Session mailSession = Session.getInstance(properties, authenticator);// 创建邮件消息MimeMessage message = new MimeMessage(mailSession);return message;}catch (Exception e){e.printStackTrace();}return null;}/*** 发送一个简单的文本邮件* @param to 收件人邮箱* @param title 邮件标题* @param text  邮件内容* @return*/public static boolean sendMail(String to,String title,String text){MimeMessage message = createMail();if (message==null){return false;}try {// 设置发件人InternetAddress form = new InternetAddress(EntityCode.USER);message.setFrom(form);// 设置收件人InternetAddress toAddress = new InternetAddress(to);message.setRecipient(Message.RecipientType.TO, toAddress);// 设置邮件标题message.setSubject(title);// 设置邮件的内容体message.setContent(text, "text/html;charset=UTF-8");// 发送邮件Transport.send(message);}catch (Exception e){e.printStackTrace();}return true;}
}

1.4 创建测试类

import com.it.util.MailUtil;
import com.it.util.UUIDUtil;
import org.junit.Test;public class EmailTest {@Testpublic void Test1(){String email = "2428596932@qq.com";String title = "测试邮件";String text  = UUIDUtil.getUUID();boolean b = MailUtil.sendMail(email, title, text);System.out.println("发送成功");}
}