自己写的javamail

最新推荐文章于 2025-05-19 10:02:47 发布

guijava

最新推荐文章于 2025-05-19 10:02:47 发布

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文章标签： javamail properties string exception null 邮件服务器

本文链接：https://blog.youkuaiyun.com/guijava/article/details/3837289

package com.lobo.server.common;

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Date;
import java.util.Properties;

import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import com.lobo.server.db.entity.LoboDeviceInspect;

public class JavaMail {

    private Properties properties;
    private Session mailSession;
    private MimeMessage mailMessage;
    private Transport trans;

    public JavaMail() {

    }
    public boolean sendMail(Object obj) {
        try {

        LoboDeviceInspect ld = (LoboDeviceInspect)obj;
        String name = ld.getLoboMoveDevice().getDeviceName();
        String ip = ld.getLanAddr();
        String userDate = ld.getUserDate().toString();

        String smtpHost = this.readValue("smtpHost");
            String from = this.readValue("from");;
            String to = this.readValue("to");;
            final String userName = this.readValue("userName");
            final String password = this.readValue("password");

            if(smtpHost==null || from==null || to==null ||userName==null || password==null){
            return false;
            }

            properties = new Properties();
            //设置邮件服务器
            properties.put("mail.smtp.host", smtpHost);
            //验证
            properties.put("mail.smtp.auth", "true");
            //根据属性新建一个邮件会话
            mailSession = Session.getInstance(properties,
                                              new Authenticator() {
                public PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(userName, password);
                }
            });
//            mailSession.setDebug(true);
            //建立消息对象
            mailMessage = new MimeMessage(mailSession);
            //发件人
            mailMessage.setFrom(new InternetAddress(from));
            //收件人
            mailMessage.setRecipient(MimeMessage.RecipientType.TO,
                                 new InternetAddress(to));
            //主题
            mailMessage.setSubject("编码为："+name+" 的设备在使用！");
            //内容
            mailMessage.setText("有设备在使用，详细内容如下："
                +"编码为："+name+"；"
                +"主机IP为："+ip+"；"
                +"使用时间为："+userDate+"。");
            //发信时间
            mailMessage.setSentDate(new Date());
            //存储信息
            mailMessage.saveChanges();
            //
            trans = mailSession.getTransport("smtp");
            //发送
            trans.send(mailMessage);
            trans.close();
            return true;
        } catch (Exception e) {
//            e.printStackTrace();
            return false;
        } finally {
        }
    }

    //根据key读取value
    public String readValue(String key) {
  Properties props = new Properties();
  try {
   String filePath = this.getClass().getResource("/").getPath();
   InputStream in = new BufferedInputStream(new FileInputStream(filePath.replace("%20", " ")+"/sendMail.properties"));
   props.load(in);
   String value = props.getProperty(key);
   return value;
  } catch (Exception e) {
   e.printStackTrace();
   return null;
  }
}
}