前两天接触项目中，投保完成后要给客户发送邮件，出于好奇，产生了一个想法，因为从没搞过这个邮件这方面的操作，然后就想自己搞搞java代码发送邮件。
下面的代码是参考阿里云实现的，如文章中有不正确的地方还请指点出来。
java发送邮件
package com.email.emailTest.Emailserver;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
public class SampleMail {
private static final String ALIDM_SMTP_HOST = "smtp.qq.com";//smtpdm.aliyun.com
private static final String ALIDM_SMTP_PORT = "25";//或"80"
public static void main(String[] args) {
// 配置发送邮件的环境属性
final Properties props = new Properties();
// 表示SMTP发送邮件，需要进行身份验证
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.host", ALIDM_SMTP_HOST);
props.put("mail.smtp.port", ALIDM_SMTP_PORT);
// 如果使用ssl，则去掉使用25端口的配置，进行如下配置,
// props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
// props.put("mail.smtp.socketFactory.port", "465");
// props.put("mail.smtp.port", "465");
// 发件人的账号，填写控制台配置的发信地址,比如xxx@xxx.com
props.put("mail.user", "842453123@qq.com");
// 访问SMTP服务时需要提供的密码(在控制台选择发信地址进行设置)
props.put("mail.password", "nhyempxdcxarbajg");
// 构建授权信息，用于进行SMTP进行身份验证
Authenticator authenticator = new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
// 用户名、密码
String userName = props.getProperty("mail.user");
String password = props.getProperty("mail.password");
return new PasswordAuthentication(userName, password);
}
};
// 使用环境属性和授权信息，创建邮件会话
Session mailSession = Session.getInstance(props, authenticator);
// 创建邮件消息
MimeMessage message = new MimeMessage(mailSession){};
try {
// 设置发件人邮件地址和名称。填写控制台配置的发信地址,比如xxx@xxx.com。和上面的mail.user保持一致。名称用户可以自定义填写。
InternetAddress from = new InternetAddress("842453123@qq.com", "842453123@qq.com");//personal:发件人名称（用户自定义填写）
message.setFrom(from);
// 设置收件人邮件地址，比如yyy@yyy.com
InternetAddress to = new InternetAddress("842453123@qq.com");
message.setRecipient(MimeMessage.RecipientType.TO, to);
//如果同时发给多人，才将上面两行替换为如下（因为部分收信系统的一些限制，尽量每次投递给一个人；同时我们限制单次允许发送的人数是30人）：
//InternetAddress[] adds = new InternetAddress[2];
//adds[0] = new InternetAddress("xxxxx@qq.com");
//adds[1] = new InternetAddress("xxxxx@qq.com");
//message.setRecipients(Message.RecipientType.TO, adds);
String ccUser = "";//抄送邮箱
// 设置多个抄送地址
if(null != ccUser && !ccUser.isEmpty()){
@SuppressWarnings("static-access")
InternetAddress[] internetAddressCC = new InternetAddress().parse(ccUser);
message.setRecipients(Message.RecipientType.CC, internetAddressCC);
}
String bccUser = "";//密送邮箱
// 设置多个密送地址
if(null != bccUser && !bccUser.isEmpty()){
@SuppressWarnings("static-access")
InternetAddress[] internetAddressBCC = new InternetAddress().parse(bccUser);
message.setRecipients(Message.RecipientType.BCC, internetAddressBCC);
}
// 设置邮件标题
message.setSubject("测试邮件");
// 设置邮件的内容体
message.setContent("编程是个脑力活，如果把它做成了体力活，这就代表是时候改变一下了", "text/html;charset=UTF-8");
//若需要开启邮件跟踪服务，请使用以下代码设置跟踪链接头。首先域名需要备案，设置且已正确解析了CNAME配置；其次发信需要打Tag，此Tag在控制台已创建并存在，Tag创建10分钟后方可使用；
//String tagName = "Test";
//HashMap<String, String> trace = new HashMap<>();
//trace.put("OpenTrace", "1");
//trace.put("TagName", tagName);
//String jsonTrace = JSON.toJSONString(trace);
//String base64Trace = new String(Base64.encodeBase64(jsonTrace.getBytes()));
//设置跟踪链接头
//message.addHeader("X-AliDM-Trace", base64Trace);
// 发送邮件
Transport.send(message);
}
catch (MessagingException e) {
String err = e.getMessage();
// 在这里处理message内容， 格式是固定的
System.out.println(err);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
}
java发送HTML邮件
@Service
public class EmailUtil {
@Value("${spring.mail.username}")
private String from;//从谁那边来发送
@Autowired
private JavaMailSender javaMailSender;
public void sendHtmlMail(String to,String subject,String content) throws MessagingException {
System.out.println("**********开始发送邮件**********");
MimeMessage message = javaMailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message,true);
helper.setTo(to);//发送给谁
helper.setSubject(subject);
helper.setText(content,true);
helper.setFrom(from);//从谁那发送
javaMailSender.send(message);
System.out.println("**********邮件发送成功**********");
}
**************************junit.Test**************************
@RunWith(SpringRunner.class)//就是一个运行器
@SpringBootTest
public class Test {
@Resource
private EmailUtil emailUtil;
@org.junit.Test
public void sendHtmlMailTest() throws MessagingException {
String content = "<html>" +
"<body>" +
"<h1 style='color: #00ff00'>" +
"测试邮件" +
"</h1>" +
"今天上海天气很阴，风很大，希望等会下班的时候不要下雨" +
"</body>" +
"</html>";
emailUtil.sendHtmlMail("842453123@qq.com","测试邮件",content);
}
}
效果图
java发送附件邮件
@Service
public class EmailUtil {
@Value("${spring.mail.username}")
private String from;//从谁那边来发送
@Autowired
private JavaMailSender javaMailSender;
//java发送附件邮件
public void sendAttachmentsMail(String to,String subject,String content,String filePath) throws MessagingException {
MimeMessage message = javaMailSender.createMimeMessage();
System.out.println("**********开始发送邮件**********");
MimeMessageHelper helper = new MimeMessageHelper(message,true);
helper.setFrom(from);//从谁那发送
helper.setTo(to);//发送给谁
helper.setSubject(subject);
helper.setText(content,true);
FileSystemResource file = new FileSystemResource(new File(filePath));//附件文件
String fileName = file.getFilename();//文件名称
helper.addAttachment(fileName,file);
javaMailSender.send(message);
System.out.println("**********邮件发送成功**********");
}
**************************junit.Test**************************
@org.junit.Test
public void sendAttachmentsMail() throws MessagingException {
String filePath = "C:\\Users\\Administrator.SC-201901301142\\Desktop\\aia-wechat.rar";
emailUtil.sendAttachmentsMail("842453123@qq.com","测试邮件","这是一封带有附件的邮件",filePath);
}
效果图
SpringBoot 发送邮件
引入pom
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
配置yml文件
#spring.mail.host: smtp.163.com
#spring.mail.username: xxxxxxxx@163.com
#spring.mail.password: DWSBWWENHZPEUZKB
#spring.mail.transport.protocol: smtp
#spring.mail.smtp.auth: true
#spring.mail.smtp.port: 465
#spring.mail.smtp.ssl.enable: true
#spring.mail.smtp.ssl.socketFactory.class: javax.net.ssl.SSLSocketFactory
spring:
mail:
host: smtp.qq.com
username: 842453123@qq.com
password: qzivaynljpuqbejh
transport.protocol: smtp
smtp:
auth: true
port: 465
ssl.enable: true
ssl.socketFactory.class: javax.net.ssl.SSLSocketFactory
编写代码
@Controller
public class TestMail {
@Value("${spring.mail.username}")
private String from; // 从谁来发送邮件
@Autowired
private JavaMailSender javaMailSender;
@RequestMapping("/test")
public String test(){
sendSimpleMail("842453123@qq.com", "测试邮件", "这个是一封测试邮件");
System.out.println("发送成功");
return "成功";
}
public void sendSimpleMail(String to, String subject, String content) {
SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
simpleMailMessage.setTo(to);
simpleMailMessage.setSubject(subject);
simpleMailMessage.setText(content);
simpleMailMessage.setFrom(from);
javaMailSender.send(simpleMailMessage);
}
}
仅供参考
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