注意： 该项目的工具类可以直接应用于项目
1、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 http://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>2.1.4.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.rocketmq</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>demo</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <!--基础 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <!-- test --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- activemq --> <dependency> <groupId>org.apache.activemq</groupId> <artifactId>activemq-all</artifactId> <version>5.15.4</version> </dependency> <!-- spring-activemq --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-activemq</artifactId> </dependency> <!-- rocketmq --> <dependency> <groupId>org.apache.rocketmq</groupId> <artifactId>rocketmq-client</artifactId> <version>4.2.0</version> </dependency> <!-- fastjson--> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.31</version> </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>
注意：pom.xml包含了一些其他的jar依赖，其实是不需要的，只需要有：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
2、application.properties
注意：这个配置文件只是针对QQ邮箱，如果是163或者其他企业邮箱，需要根据需要配置
server.port=8080 spring.mail.host=smtp.qq.com spring.mail.username=自己的qq邮箱 spring.mail.password=密码，不是登陆密码，是开启smtp的授权码 spring.mail.default-encoding=UTF-8 spring.mail.port=465 spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory spring.mail.properties.mail.debug=true
3、SendMailUtil.java
package com.rocketmq.demo.Utils; 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.stereotype.Component; import javax.mail.internet.MimeMessage; import java.io.File; @Component public class SendMailUtil { @Autowired JavaMailSender mailSender; /** * 发送文本消息 * @param senderMail 发送者邮箱 * @param receiveMail 接受者邮箱 * @param subject 主题 * @param text 主体内容 * @return */ public String sendMail(String senderMail,String receiveMail,String subject,String text){ try { final MimeMessage message = this.mailSender.createMimeMessage(); final MimeMessageHelper helper = new MimeMessageHelper(message); helper.setFrom(senderMail);//发送者邮箱 helper.setTo(receiveMail);//接收者邮箱 helper.setSubject(subject); helper.setText(text); this.mailSender.send(message); return "sucesss"; } catch (Exception ex) { ex.printStackTrace(); return "error"; } } /** * 带附件发送邮件----可多个附件 图片，doc都可以发送 * @param senderMail 发送者邮箱 * @param receiveMail 接受者邮箱 * @param subject 主题 * @param text 主体内容 * @param fileArray 附件路径 * @return */ public String sendMailFile(String senderMail,String receiveMail,String subject,String text,String[] fileArray) { try { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message, true); helper.setFrom(senderMail); helper.setTo(receiveMail); helper.setSubject(subject); helper.setText(text); //验证文件数据是否为空 if (null != fileArray) { FileSystemResource file = null; for (int i = 0; i < fileArray.length; i++) { //添加附件 file = new FileSystemResource(fileArray[i]); helper.addAttachment(fileArray[i].substring(fileArray[i].lastIndexOf(File.separator)), file); } } mailSender.send(message); System.out.println("带附件的邮件发送成功"); return "sucesss"; } catch (Exception e) { e.printStackTrace(); System.out.println("发送带附件的邮件失败"); return "error"; } } }
4、mailController.java
package com.rocketmq.demo.controller; import com.rocketmq.demo.Utils.SendMailUtil; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping("/mail") public class mailController { @Autowired SendMailUtil sendMailUtil; /** * 发送文本消息，不带附件 * @return */ @ResponseBody @RequestMapping("/send") public Object sendEmail() { String senderMial = "发送者@qq.com"; String receiveMail = "接收者@qq.com"; String subject = "测试主题"; String text = "测试内容"; return sendMailUtil.sendMail(senderMial,receiveMail,subject,text); } @GetMapping("/sendFile") public String sendAttachmentsMail() { String senderMial = "发送者@qq.com"; String receiveMail = "接收者@qq.com"; String subject = "测试主题"; String text = "测试内容"; String[] path={"C:\Users\yangwj\Desktop\公司\正式员工详细信息表.xls"}; return sendMailUtil.sendMailFile(senderMial,receiveMail,subject,text,path); } }
总结：
setFrom：指的是发送者的邮箱，要和配置文件的一致。