java牛客网②-Spring Boot实践，开发社区登录模块

2.1 发送邮件

邮箱设置

src/main/resources/application.properties

# MailProperties
spring.mail.host=smtp.qq.com
spring.mail.port=465
spring.mail.username=你的邮箱
spring.mail.password=你的授权码
spring.mail.protocol=smtps
spring.mail.properties.mail.smtp.ssl.enable=true
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true

邮箱实例

src/main/java/com/nowcoder/community/util/MailClient.java

package com.nowcoder.community.util;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;

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

@Component
public class MailClient {

    private static final Logger logger = LoggerFactory.getLogger(MailClient.class);

    @Autowired
    private JavaMailSender mailSender;

    @Value("${spring.mail.username}")
    private String from;

    public void sendMail(String to, String subject, String content) {
        try {
            MimeMessage message = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);
            mailSender.send(helper.getMimeMessage());
        } catch (MessagingException e) {
            logger.error("发送邮件失败:" + e.getMessage());
        }
    }

}

测试邮箱

src/test/java/com/nowcoder/community/MailTests.java

package com.nowcoder.community;

import com.nowcoder.community.util.MailClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

import javax.swing.text.html.HTML;

@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration(classes = CommunityApplication.class)
public class MailTests {
    @Autowired
    private MailClient mailClient;
    @Autowired
    private TemplateEngine templateEngine;
    @Test
    public void testTextMail(){
        mailClient.sendMail("接收的邮箱","baobao","love you");
    }
    @Test
    public void testHtmlMail(){
        Context context = new Context();
        context.setVariable("username","sunday");
        String content = templateEngine.process("/mail/demo",context);
        System.out.println(content);
        mailClient.sendMail(接收的邮箱", "HTML",content);
    }
}