【Java编程系列】使用JavaMail通过SMTP协议发送局域网(内网)邮件_内网邮箱 可以用java发邮件吗

package com.cams.CaMSMonitorService;
 
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.Properties;
 
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Message.RecipientType;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
 
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
 
/**
 * 该类为邮件封装类
 * 设置邮件收发人，内容，日期，以及发送功能
 * @author Yangy
 *
 */
public class MailManager {
	
    private String host;
	
    private String auth;
	
    private String username;  
    
    private String domainUser;  
    
    private String password;  
	
    public MailManager(String host, String auth, String domainUser, String username, String password)
    {
    	this.host = host;  
        this.auth = auth;  
        this.domainUser = domainUser;  
        this.username = username;  
        this.password = password; 
    }
    
    /**
     * 发送邮件
     * @param to          接收人
     * @param subject	     标题
     * @param msgtext	     内容	
     * @return
     * @throws MessagingException
     * @throws UnsupportedEncodingException 
     */
    public boolean SendMail(String [] to,String subject,String msgtext) throws MessagingException, UnsupportedEncodingException 
    {
    	boolean flag = false;
    	
    	Properties properties = new Properties();
    	//设置smtp协议 
    	properties.put("mail.transport.protocol", "SMTP"); 
    	//设置服务器连接地址
    	properties.put("mail.smtp.host", host);
    	//设置TLS保护连接，默认为false
    	properties.put("mail.smtp.starttls.enable", "true");
    	//设置身份校验
    	properties.put("mail.smtp.auth", "true");
    	//设置默认端口号
    	properties.put("mail.smtp.port", 25);
    	
    	//使用环境属性和授权信息，创建邮件会话
    	Session session = Session.getDefaultInstance(properties);
    	//控制台打印日志
    	session.setDebug(true);
    	//创建邮件消息
    	Message msg = new MimeMessage(session);
    	
    	//设置发件人
    	InternetAddress from = new InternetAddress(username);
    	msg.setFrom(from);
    	
    	if(to.length > 0)
    	{
    		InternetAddress [] toAddr = new InternetAddress[to.length];
    		for (int i = 0; i < to.length; i++) {
    			toAddr[i] = new InternetAddress(to[i]);
			}
    		//设置收件人的邮箱
    		msg.setRecipients(RecipientType.TO, toAddr);
    		//设置邮件标题
    		msg.setSubject(subject);
    		//设置发送时间
    		msg.setSentDate(new Date());
    		//设置邮件的内容体
    		BodyPart mbp = new MimeBodyPart();
    		mbp.setContent(msgtext, "text/html;charset=utf-8");
    		Multipart multipart = new MimeMultipart();
    		multipart.addBodyPart(mbp);
    		msg.setContent(multipart);
    		
    		msg.saveChanges();
    		//建立邮件传输对象
    		Transport transport = session.getTransport("smtp");
    		//与服务端建立连接
    		transport.connect(host,"admin@cams.net", "123456");
    		//发送邮件
    		transport.sendMessage(msg, msg.getAllRecipients());
    		//关闭
    		transport.close();
    		
    		flag = true;
    	}
    	else
    	{
    		System.out.println("接收用户为空");
    	}
    	
    	return flag;
    }
}

package com.cams.CaMSMonitorService;
 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
import javax.swing.JOptionPane;
 
import com.cams.CaMSMobileService.SerialPort.ui.MailClientFrame;
 
public class SendEmailManage {
	
	public static void main(String[] args) {
		System.setProperty("java.net.preferIPv4Stack", "true");
		final MailClientFrame mcFrame = new MailClientFrame();
		mcFrame.setVisible(true);
		
		mcFrame.getjButton().addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				//获取发送信息
				String toName = mcFrame.getToNameField().getText();
				//获取接收人
				String [] toAry = new String[]{toName};
				//获取服务器地址
				String host = mcFrame.getToIpCombox().getSelectedItem().toString();
				//获取发件人
				String from = mcFrame.getFromNameFeild().getText();
				//获取发送标题
				String subject = mcFrame.getSubjectFiled().getText();
				//获取发送内容
				String content = mcFrame.getMsgArea().getText();
				//创建邮件工具类对象
				MailManager mailManager = new MailManager(host, "false", "cams.net", from, "");
				try {
				 //发送邮件	
				 boolean flag =	mailManager.SendMail(toAry, subject, content);
				 
				 if(flag)
				 {
					 JOptionPane.showMessageDialog(mcFrame, "发送成功", "提示", JOptionPane.WARNING_MESSAGE);
				 }
				 else
				 {
					 JOptionPane.showMessageDialog(mcFrame, "发送失败", "提示", JOptionPane.ERROR_MESSAGE);
				 }
				 
				} catch (Exception e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}
				
			}
		});
	}
	
}