springboot发送邮件案例

转x33g5p2x  于2022-02-17 转载在 Spring  
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1.登录qq邮箱在账号里面开启smtp服务，并获取授权码

2.pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.2</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.yl</groupId>
    <artifactId>mail</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>mail</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <resources>
        <resource>
            <directory>${basedir}/src/main/java</directory>
            <includes>
                <include>**/*.*</include>
            </includes>
            <excludes>
                <exclude>**/*.java</exclude>
            </excludes>
            <filtering>false</filtering>
        </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

3.application.properties

# 邮件的配置
spring.mail.host=smtp.qq.com
spring.mail.port=465
# 邮件发送人
spring.mail.username=xxx@qq.com
# 使用自己的授权码
spring.mail.password=ontqrqxpjkysfhbb
spring.mail.default-encoding=utf-8
spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
spring.mail.properties.mail.debug=true
spring.mail.protocol=smtp
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.ssl.enable=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.test-connection=true

4.发送简单邮件

@Autowired
    JavaMailSender javaMailSender;

    //发送简单邮件
    @Test
    void contextLoads() throws Exception{
        SimpleMailMessage message = new SimpleMailMessage();
        //邮件发送人，注意这个邮件发送人要和application.properties中的username一致
        message.setFrom("xxx@qq.com");
        //邮件接收人
        message.setTo("xxxx@qq.com");
        message.setSentDate(new Date());
        //邮件主题
        message.setSubject("测试邮件主题-测试邮件");
        //邮件内容
        message.setText("测试邮件内容-测试邮件");
        javaMailSender.send(message);
    }

5.发送带附件邮件

@Autowired
    JavaMailSender javaMailSender;
      //发送带附件的邮件
    @Test
    void test() throws MessagingException {
        File file = new File("D://test.xlsx");
        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
        MimeMessageHelper helper = new MimeMessageHelper(mimeMessage,true);
        helper.setFrom("xxx@qq.com");
        helper.setTo("xxxx@qq.com");
        helper.setSentDate(new Date());
        helper.setSubject("测试带附件的邮件主题-测试邮件");
        helper.setText("测试带附件的邮件内容-测试邮件");
        helper.addAttachment(file.getName(),file);
        javaMailSender.send(mimeMessage);
    }

6.发送带图片的邮件

@Autowired
    JavaMailSender javaMailSender;
    //发送带图片的邮件
    @Test
    void test1() throws MessagingException {
        File file = new File("D://test//img/1.jpg");
        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
        MimeMessageHelper helper = new MimeMessageHelper(mimeMessage,true);
        helper.setFrom("xxx@qq.com");
        helper.setTo("xxxx@qq.com");
        helper.setSentDate(new Date());
        helper.setSubject("测试带图片的邮件-主题");
        helper.setText("<div>测试带图片的邮件内容</div> <div><img src = 'cid:p01'/></div>",true);
        helper.addInline("p01",file);
        javaMailSender.send(mimeMessage);
    }

6.user实体类

package com.yl.mail.domain;

import java.io.Serializable;

public class User implements Serializable {
    private String username;
    private String company;
    private String position;
    private Integer salary;

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getCompany() {
        return company;
    }

    public void setCompany(String company) {
        this.company = company;
    }

    public String getPosition() {
        return position;
    }

    public void setPosition(String position) {
        this.position = position;
    }

    public Integer getSalary() {
        return salary;
    }

    public void setSalary(Integer salary) {
        this.salary = salary;
    }

    @Override
    public String toString() {
        return "User{" +
                "username='" + username + '\'' +
                ", company='" + company + '\'' +
                ", position='" + position + '\'' +
                ", salary=" + salary +
                '}';
    }
}

7.freemarker模板

<div>欢迎 ${username} 加入 ${company} 大家庭，您的入职信息如下：</div>
<table border="1">
    <tr>
        <td>姓名</td>
        <td>${username}</td>
    </tr>
    <tr>
        <td>职位</td>
        <td>${position}</td>
    </tr>
    <tr>
        <td>薪水</td>
        <td>${salary}</td>
    </tr>
</table>
<div style="color: greenyellow;font-size: large">微风吹拂，杨柳依依</div>

8.thymeleaf模板

<!DOCTYPE html>
<html lang="en" xmlns="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>欢迎 <span th:text="${username}"></span> 加入 <span th:text="${company}"></span> 大家庭，您的入职信息如下：</div>
<table border="1">
    <tr>
        <td>姓名</td>
        <td th:text="${username}"></td>
    </tr>
    <tr>
        <td>职位</td>
        <td th:text="${position}"></td>
    </tr>
    <tr>
        <td>薪水</td>
        <td th:text="${salary}"></tdth:text>
    </tr>
</table>
<div style="color: greenyellow;font-size: large">微风吹拂，杨柳依依</div>
</body>
</html>

9.使用freemarker模板发送邮件

@Autowired
    JavaMailSender javaMailSender;
 //使用freemarker模板发送邮件
    @Test
    void test2() throws MessagingException, IOException, TemplateException {
        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
        MimeMessageHelper helper = new MimeMessageHelper(mimeMessage,true);
        helper.setFrom("xxx@qq.com");
        helper.setTo("xxxx@qq.com");
        helper.setSentDate(new Date());
        helper.setSubject("测试邮件主题（freemarker）-测试邮件");
        Configuration cfg = new Configuration(Configuration.VERSION_2_3_30);
        cfg.setClassForTemplateLoading(MailApplicationTests.class,"/mail");
        Template template = cfg.getTemplate("mail.ftl");
        User user = new User();
        user.setUsername("root");
        user.setCompany("xxx软件开发公司");
        user.setPosition("软件开发工程师");
        user.setSalary(11000);
        StringWriter writer = new StringWriter();
        template.process(user,writer);
        String text = writer.toString();
        System.out.println("邮件内容：" + text);
        helper.setText(text,true);
        javaMailSender.send(mimeMessage);
    }

10.使用thymeleaf模板来发送邮件（推荐）

@Autowired
    JavaMailSender javaMailSender;
 	@Autowired
    TemplateEngine templateEngine;

    //使用thymeleaf模板发送邮件
    @Test
    void test3() throws MessagingException, IOException, TemplateException {
        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
        MimeMessageHelper helper = new MimeMessageHelper(mimeMessage,true);
        helper.setFrom("xxx@qq.com");
        helper.setTo("xxxx@qq.com");
        helper.setSentDate(new Date());
        helper.setSubject("测试邮件主题（thymeleaf）-测试邮件");
        Context context = new Context();
        context.setVariable("username","admin");
        context.setVariable("company","xxx中小型公司");
        context.setVariable("position","前端开发工程师");
        context.setVariable("salary",10000);
        String text = templateEngine.process("mail.html", context);
        System.out.println("邮件内容：" + text);
        helper.setText(text,true);
        javaMailSender.send(mimeMessage);
    }

版权说明 : 本文为转载文章, 版权归原作者所有 版权申明

原文链接 : https://blog.csdn.net/weixin_41359273/article/details/122973345

内容来源于网络，如有侵权，请联系作者删除！

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