这篇文章介绍springboot的邮件发送。
由于很简单就没有分出server和imp之类，只是在controller简单写个方法进行测试。
首先pom文件加入spring-boot-starter-mail，代码如下：
<?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.dalaoyang</groupId> <artifactId>springboot_mail</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>springboot_mail</name> <description>springboot_mail</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.9.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mail</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
接下来是application.properties，里面包含发送邮箱的地址，账号密码，接信地址，由于只是测试，所以都是固定写死的，如果项目中需要，可以根据自行情况进行修改。
##端口号 server.port=8888 ##这里根据自己的情况填写 ##邮箱服务器地址 ##QQ smtp.qq.com ##sina smtp.sina.cn ##aliyun smtp.aliyun.com ##163 smtp.163.com spring.mail.host=smtp.aliyun.com ##邮箱用户名 spring.mail.username=dalaoyang@aliyun.com ##邮箱密码（注意：qq邮箱应该使用独立密码，去qq邮箱设置里面获取） spring.mail.password=****** ##编码格式 spring.mail.default-encoding=UTF-8 ##发送邮件地址 mail.fromMail.sender=dalaoyang@aliyun.com ##接收邮件地址 mail.fromMail.receiver=yangyang@dalaoyang.cn
然后先展示一下controller的完整代码：
package com.dalaoyang.controller;
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.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
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;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;
/**
* @author dalaoyang
* @Description
* @project springboot_learn
* @package com.dalaoyang.controller
* @email yangyang@dalaoyang.cn
* @date 2018/4/10
*/
@RestController
public class MailController {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
@Value("${mail.fromMail.sender}")
private String sender;
@Value("${mail.fromMail.receiver}")
private String receiver;
@Autowired
private JavaMailSender javaMailSender;
/* *
* @Description http://localhost:8888/sendMail
* @author dalaoyang
* @email 397600342@qq.com
* @method 发送文本邮件
* @date
* @param
* @return
*/
@RequestMapping("/sendMail")
public String sendMail() {
SimpleMailMessage message = new SimpleMailMessage();
message.setFrom(sender);
message.setTo(receiver);
message.setSubject("大老杨");
message.setText("你好你好你好！");
try {
javaMailSender.send(message);
logger.info("简单邮件已经发送。");
} catch (Exception e) {
logger.error("发送简单邮件时发生异常！", e);
}
return "success";
}
/* *
* @Description http://localhost:8888/sendHtmlMail
* @author dalaoyang
* @email 397600342@qq.com
* @method 发送html邮件
* @date
* @param
* @return
*/
@RequestMapping("/sendHtmlMail")
public String testHtmlMail() {
String content="<html>\n" +
"<body>\n" +
" <h3>hello world ! 这是一封Html邮件!</h3>\n" +
"</body>\n" +
"</html>";
MimeMessage message = javaMailSender.createMimeMessage();
try {
//true表示需要创建一个multipart message
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(sender);
helper.setTo(receiver);
helper.setSubject("html mail");
helper.setText(content, true);
javaMailSender.send(message);
logger.info("html邮件发送成功");
} catch (MessagingException e) {
logger.error("发送html邮件时发生异常！", e);
}
return "success";
}
/* *
* @Description http://localhost:8888/sendFilesMail
* @author dalaoyang
* @email 397600342@qq.com
* @method 发送附件邮件
* @date
* @param
* @return
*/
@RequestMapping("/sendFilesMail")
public String sendFilesMail() {
String filePath="/Users/dalaoyang/Downloads/article_tag.sql";
MimeMessage message = javaMailSender.createMimeMessage();
try {
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(sender);
helper.setTo(receiver);
helper.setSubject("附件邮件");
helper.setText("这是一封带附件的邮件", true);
FileSystemResource file = new FileSystemResource(new File(filePath));
String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
helper.addAttachment(fileName, file);
javaMailSender.send(message);
logger.info("带附件的邮件已经发送。");
} catch (MessagingException e) {
logger.error("发送带附件的邮件时发生异常！", e);
}
return "success";
}
/* *
* @Description http://localhost:8888/sendInlineResourceMail
* @author dalaoyang
* @email 397600342@qq.com
* @method 发送图片邮件
* @date
* @param
* @return
*/
@RequestMapping("/sendInlineResourceMail")
public String sendInlineResourceMail() {
String Id = "dalaoyang12138";
String content="<html><body>这是有图片的邮件：<img src=\'cid:" + Id + "\' ></body></html>";
String imgPath = "/Users/dalaoyang/Downloads/dalaoyang.jpeg";
MimeMessage message = javaMailSender.createMimeMessage();
try {
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(sender);
helper.setTo(receiver);
helper.setSubject("这是有图片的邮件");
helper.setText(content, true);
FileSystemResource res = new FileSystemResource(new File(imgPath));
helper.addInline(Id, res);
javaMailSender.send(message);
logger.info("嵌入静态资源的邮件已经发送。");
} catch (MessagingException e) {
logger.error("发送嵌入静态资源的邮件时发生异常！", e);
}
return "success";
}
}然后一点一点来，本文分4种情况：
1.发送简单的文本邮件
/* *
* @Description http://localhost:8888/sendMail
* @author dalaoyang
* @email yangyang@dalaoyang.cn
* @method 发送文本邮件
* @date
* @param
* @return
*/
@RequestMapping("/sendMail")
public String sendMail() {
SimpleMailMessage message = new SimpleMailMessage();
message.setFrom(sender);
message.setTo(receiver);
message.setSubject("大老杨");
message.setText("你好你好你好！");
try {
javaMailSender.send(message);
logger.info("简单邮件已经发送。");
} catch (Exception e) {
logger.error("发送简单邮件时发生异常！", e);
}
return "success";
}访问http://localhost:8888/sendMail，可以看到页面上显示success，在去看邮箱可以看到如下图，证明发送成功
2.发送html邮件
/* *
* @Description http://localhost:8888/sendHtmlMail
* @author dalaoyang
* @email yangyang@dalaoyang.cn
* @method 发送html邮件
* @date
* @param
* @return
*/
@RequestMapping("/sendHtmlMail")
public String testHtmlMail() {
String content="<html>\n" +
"<body>\n" +
" <h3>hello world ! 这是一封Html邮件!</h3>\n" +
"</body>\n" +
"</html>";
MimeMessage message = javaMailSender.createMimeMessage();
try {
//true表示需要创建一个multipart message
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(sender);
helper.setTo(receiver);
helper.setSubject("html mail");
helper.setText(content, true);
javaMailSender.send(message);
logger.info("html邮件发送成功");
} catch (MessagingException e) {
logger.error("发送html邮件时发生异常！", e);
}
return "success";
}访问http://localhost:8888/sendHtmlMail，可以看到页面上显示success，在去看邮箱可以看到如下图，证明发送成功
3.发送附件邮件
/* *
* @Description http://localhost:8888/sendFilesMail
* @author dalaoyang
* @email yangyang@dalaoyang.cn
* @method 发送附件邮件
* @date
* @param
* @return
*/
@RequestMapping("/sendFilesMail")
public String sendFilesMail() {
String filePath="/Users/dalaoyang/Downloads/article_tag.sql";
MimeMessage message = javaMailSender.createMimeMessage();
try {
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(sender);
helper.setTo(receiver);
helper.setSubject("附件邮件");
helper.setText("这是一封带附件的邮件", true);
FileSystemResource file = new FileSystemResource(new File(filePath));
String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
helper.addAttachment(fileName, file);
javaMailSender.send(message);
logger.info("带附件的邮件已经发送。");
} catch (MessagingException e) {
logger.error("发送带附件的邮件时发生异常！", e);
}
return "success";
}访问http://localhost:8888/sendFilesMail，可以看到页面上显示success，在去看邮箱可以看到如下图，证明发送成功
4.发送图片邮件
/* *
* @Description http://localhost:8888/sendInlineResourceMail
* @author dalaoyang
* @email yangyang@dalaoyang.cn
* @method 发送图片邮件
* @date
* @param
* @return
*/
@RequestMapping("/sendInlineResourceMail")
public String sendInlineResourceMail() {
String Id = "dalaoyang12138";
String content="<html><body>这是有图片的邮件：<img src=\'cid:" + Id + "\' ></body></html>";
String imgPath = "/Users/dalaoyang/Downloads/dalaoyang.jpeg";
MimeMessage message = javaMailSender.createMimeMessage();
try {
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(sender);
helper.setTo(receiver);
helper.setSubject("这是有图片的邮件");
helper.setText(content, true);
FileSystemResource res = new FileSystemResource(new File(imgPath));
helper.addInline(Id, res);
javaMailSender.send(message);
logger.info("嵌入静态资源的邮件已经发送。");
} catch (MessagingException e) {
logger.error("发送嵌入静态资源的邮件时发生异常！", e);
}
return "success";
}访问http://localhost:8888/sendInlineResourceMail，可以看到页面上显示success，在去看邮箱可以看到如下图，证明发送成功
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