java实现调用邮件接口发送邮件--学习笔记

前文：最近学习了利用java发送邮件相关知识，怕忘记，所以笔记之。

一：在Maven环境下，pom配置 jar包依赖

       
            javax.mail
            mail
            1.4.5
        

二：需要发送邮件的端口，服务，邮件及账户和密码 

首先要有配置文件，命名为mail.properties，放在classpath路径下

email.host=xxxx      //邮件服务器主机host,目前只支持SMTP协议(163或qq)  网易默认是：smtp.163.com
email.port=25      //端口号
email.from=发送者的邮件账户   
username=发送者的邮件账户的用户名
password=发送者的邮件账户的密码

 

三：操作类

 

public class EmailHelper {
    
    private static final ResourceBundle bundle = ResourceBundle.getBundle("mail");
    private static final String sendFrom = bundle.getString("email.from");
    private static final String username = bundle.getString("username");
    private static final String password = bundle.getString("password");
    private static final String host = bundle.getString("email.host");
    
    public static void sendEmail(String someone, String subject, String content){
        Properties props = new Properties();
        props.setProperty("mail.host", host);
        props.setProperty("mail.smtp.auth", "true");
        
        Authenticator authenticator = new Authenticator(){
            @Override
            public PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(username,password);
            }
        };
        Session session = Session.getDefaultInstance(props, authenticator);
        session.setDebug(true);
        Message message = new MimeMessage(session);
        try {
            message.setFrom(new InternetAddress(sendFrom));
            message.setRecipients(RecipientType.TO,InternetAddress.parse(someone));
            //message.setRecipients(RecipientType.TO,InternetAddress.parse("测试的接收的邮件多个以逗号隔开"));
            try {
                message.setSubject(subject);
                message.setContent(content,"text/html;charset=UTF-8");
                Transport.send(message);
            } catch (Exception e) {
                e.printStackTrace();
            }
        } catch (AddressException e) {
            e.printStackTrace();
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }
}

 

四：测试方法

 

@Test
public  void  tsetemail(){
    String content ="Hello,This is a test email!!!!";
    
    //参数分别为接收者邮箱、title、内容body
    EmailHelper.sendEmail("[email protected]", "标题", content); 
}