Spring Boot使用JavaMailSender發送郵件

時間 2019-11-16

標籤 spring boot 使用 javamailsender 發送郵件欄目 Spring 简体版

原文原文鏈接

Spring提供了很是好用的JavaMailSender接口實現郵件發送。在Spring Boot中也提供了相應的自動化配置。html

這篇文章主要講如何在Spring Boot中使用JavaMailSender發送郵件。java

發送郵件web

1,在pom.xml中引入spring-boot-starter-mail依賴：spring

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-mail</artifactId>

</dependency>

2,在application.properties中配置相應的屬性：(我這裏模擬的是163郵箱給QQ郵箱發送郵件)瀏覽器

spring.mail.host=smtp.163.com

spring.mail.username=郵箱用戶名 so****@163.com

spring.mail.password=郵箱密碼

spring.mail.default-encoding=UTF-8

3,寫發送郵件的測試類mybatis

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.mail.SimpleMailMessage;

import org.springframework.mail.javamail.JavaMailSender;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

 

@RestController

@RequestMapping("/mail")

public class MailController {

 

private final Logger logger = LoggerFactory.getLogger(this.getClass());

 

@Autowired

    private JavaMailSender mailSender;

 

@RequestMapping("/send")

public void sendMail(){

        SimpleMailMessage message = new SimpleMailMessage();

        message.setFrom("so****@163.com");

        message.setTo("239****@qq.com");

        message.setSubject("it is a test for spring boot");

        message.setText("你好，我是小黃，我正在測試發送郵件。");

 

        try {

            mailSender.send(message);

            logger.info("小黃的測試郵件已發送。");

        } catch (Exception e) {

            logger.error("小黃髮送郵件時發生異常了！", e);

        }

    }

}

4,運行啓動類app

import org.mybatis.spring.annotation.MapperScan;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;

 

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})

@EnableAutoConfiguration

@MapperScan("cn.yideng.*.dao")

public class DemoApplication {

 

public static void main(String[] args) {

SpringApplication.run(DemoApplication.class, args);

}

}

5,瀏覽器運行 http://localhost:8080/mail/send ide

6,登陸163郵箱,在發送箱裏查看spring-boot

7,登陸QQ郵箱,在收件箱裏查看,以下圖測試

能夠看出Spring Boot的starter模塊提供了自動化配置，在引入了spring-boot-starter-mail依賴以後，會根據配置文件中的內容去建立JavaMailSender實例，所以咱們能夠直接在須要使用的地方直接@Autowired來引入 JavaMailSender 郵件發送對象。

固然在實際使用過程當中，不會這麼簡單，咱們可能會要求帶上附件、或使用郵件模塊等。這時咱們就須要使用MimeMessage來設置更復雜的右鍵內容，下面就來看看怎麼實現它。

發送帶附件的郵件

測試類 : 仍是模擬 163郵箱給QQ郵箱發送郵件

import java.io.File;

 

import javax.mail.MessagingException;

import javax.mail.internet.MimeMessage;

 

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.core.io.FileSystemResource;

import org.springframework.mail.javamail.JavaMailSender;

import org.springframework.mail.javamail.MimeMessageHelper;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

 

/**

 *  發送有附件的郵件

 *

 */

@RestController

@RequestMapping("/mail")

public class AttachmentsMailController {

private final Logger logger = LoggerFactory.getLogger(this.getClass());

 

@Autowired

    private JavaMailSender mailSender;

 

@RequestMapping("/att")

public void sendMail() throws MessagingException{

 

MimeMessage mimeMessage = mailSender.createMimeMessage();

MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);

 

helper.setFrom("so****@163.com");

helper.setTo("239****@qq.com");

helper.setSubject("主題：發送有附件的郵件");

helper.setText("你好，我是小黃，我正在測試發送一封有附件的郵件。");

        

 

FileSystemResource file1 = new FileSystemResource(new File("d:\\cat.jpg"));

FileSystemResource file2 = new FileSystemResource(new File("d:\\java-1.jpg"));

helper.addAttachment("附件-1.jpg", file1);

helper.addAttachment("附件-2.jpg", file2);

 

        try {

            mailSender.send(mimeMessage);

            logger.info("小黃的測試帶附件的郵件已發送。");

        } catch (Exception e) {

            logger.error("小黃髮送帶附件郵件時發生異常了！", e);

        }

    }

}

2，須要在D盤下準備兩張圖片cat.jpg java-1.jpg,

3，瀏覽器運行 http://localhost:8080/mail/att

4，登陸163郵箱,在發送箱裏查看,以下圖

5，登陸QQ郵箱,在收件箱裏查看,以下圖

嵌入靜態資源的郵件

還有一種是經過嵌入圖片等靜態資源，能夠直接看到圖片，而不用從附近中查看具體的圖片，來看看吧。

測試類：

 

import java.io.File;

import javax.mail.MessagingException;

import javax.mail.internet.MimeMessage;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.core.io.FileSystemResource;

import org.springframework.mail.javamail.JavaMailSender;

import org.springframework.mail.javamail.MimeMessageHelper;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

 

/**

 *  嵌入靜態資源

 */

@RestController

@RequestMapping("/mail")

public class StaticResourceMailController {

private final Logger logger = LoggerFactory.getLogger(this.getClass());

 

@Autowired

    private JavaMailSender mailSender;

 

@RequestMapping("/static")

public void sendMail() throws MessagingException{

 

MimeMessage mimeMessage = mailSender.createMimeMessage();

MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);

 

helper.setFrom("so****@163.com");

helper.setTo("239****@qq.com");

helper.setSubject("主題：嵌入靜態資源");

helper.setText("<html><body><img src=\"cid:hello\" ></body></html>", true);

        

// 注意addInline()中資源名稱 hello 必須與 text正文中cid:hello對應起來

FileSystemResource file1 = new FileSystemResource(new File("d:\\cat.jpg"));

helper.addInline("hello", file1);

 

 

        try {

            mailSender.send(mimeMessage);

            logger.info("小黃的測試嵌入靜態資源的郵件已發送。");

        } catch (Exception e) {

            logger.error("小黃髮送嵌入靜態資源的郵件時發生異常了！", e);

        }

    }

}