java 傳送郵件

核心依賴 java mail

<dependency>
			<groupId>javax.mail</groupId>
			<artifactId>mail</artifactId>
			<version>1.4.4</version>
		</dependency>

java 程式碼

// 傳送郵件配置
	public static Properties getProperties() {
		Properties p = new Properties();
		Properties prop = new Properties();
		try {
		// 相對路徑
			prop.load(StorageEngine.class.getResourceAsStream("/配置檔案.properties"));
		} catch (IOException e1) {
			e1.printStackTrace();
		}
		// 埠號
		String host = prop.getProperty("email.host");
		String port = prop.getProperty("email.port");
		String from = prop.getProperty("email.from");
		p.put("mail.smtp.host", host);// 可以直接在這裡配置傳送郵件的port，host
		p.put("mail.smtp.port", port);
		p.put("mail.smtp.auth", "true");
		p.put("mail.smtp.from", from);
		MailSSLSocketFactory sf = null;
		try {
			sf = new MailSSLSocketFactory();
			sf.setTrustAllHosts(true);
		} catch (GeneralSecurityException e) {
			e.printStackTrace();
			logger.error(方法執行異常", e);

		}
		p.put("mail.smtp.ssl.enable", "true");
		p.put("mail.smtp.ssl.socketFactory", sf);
		return p;
	}

 

下一步 設定賬戶密碼屬性
`private static class MyAuthenticator extends Authenticator {
String userName = null;
String password = null;

	public MyAuthenticator(String username, String password) {
		this.userName = username;
		this.password = password;
	}

	@Override
	protected PasswordAuthentication getPasswordAuthentication() {
		return new PasswordAuthentication(userName, password);
	}
}
 

// 傳送郵件的方法
、、 yx收件人 郵箱 fsnr傳送內容，fsbt 主題

	protected static boolean sendHtmlMail(String yx, String fsnr, String fsbt) {
		MyAuthenticator authenticator = null;
		Properties pro = getProperties();
		Properties prop = new Properties();
		try {
			prop.load(StorageEngine.class.getResourceAsStream("/配置檔案.properties"));
		} catch (IOException e1) {
			e1.printStackTrace();
		}
		String username = prop.getProperty("email.username");
		String password = prop.getProperty("email.password");
		authenticator = new MyAuthenticator(username, password);
		Session sendMailSession = Session.getDefaultInstance(pro, authenticator);
		Boolean result = true;
		try {
			javax.mail.Message mailMessage = new MimeMessage(sendMailSession);
			mailMessage.addFrom(InternetAddress.parse(username));
			// 收件人
			Address to = new InternetAddress(yx);
			mailMessage.setRecipient(javax.mail.Message.RecipientType.TO, to);
			mailMessage.setSentDate(new Date());
			// 主題
			mailMessage.setSubject(fsbt);
			Multipart mainPart = new MimeMultipart();
			BodyPart html = new MimeBodyPart();
			// 傳送內容
			html.setContent(fsnr, "text/html; charset=utf-8");
			mainPart.addBodyPart(html);
			mailMessage.setContent(mainPart);
			Transport.send(mailMessage);
		} catch (MessagingException ex) {
			ex.printStackTrace();
			logger.error(方法執行異常", ex);
			result = false;
		}
		return result;
	}