javaMail

知识点：javaMail api包含Session,Message,Transport,InternetAddress
Session:封装一组与邮件配置有关的方法，通过java.util.Properties或得配置信息，通过getdefaultInstance()获得邮件会话.
Message:邮件信息类,主要方法：
setFrom();setSubject();setContent();setSentDate();setText();addRecipient(收件人类型，收件邮箱);
Transport:邮件传输类Transport.send(message);

InternetAddress:用户的邮箱地址
1.发送纯文本文件

package main;import java.util.Properties;import javax.mail.Authenticator;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.PasswordAuthentication;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage;public class send2 {    public void SendMail() throws MessagingException{        Authenticator auth = new Authenticator() {            public PasswordAuthentication getPasswordAuthentication() {                return new PasswordAuthentication("[e-mail]（发送邮箱）", "发送邮箱密码");            }        };//获取认证验证        Properties prop=new Properties();        prop.setProperty("mail.host","smtp.sohu.com");        prop.setProperty("mail.smtp.auth", "true");        prop.setProperty("mail.transport.protocol", "SMTP");//邮件配置信息        Session s=Session.getDefaultInstance(prop,auth);        MimeMessage me=new MimeMessage(s);        InternetAddress to=new InternetAddress("[e-mail]");        me.addRecipient(Message.RecipientType.TO, to);        me.setFrom(new InternetAddress("[e-mail]")); // 设置发送者        //me.setContent("hello world","text/html;utf-8");        me.setSubject("主题");        me.setText("hello");        Transport t=s.getTransport("smtp");        t.send(me);    }    public static void main(String[] args) throws MessagingException {        new send2().SendMail();    }}

2.发送html格式的文件

package main;import java.io.BufferedReader;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.util.Properties;import javax.mail.Authenticator;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.PasswordAuthentication;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage;public class send2 {    public void SendMail() throws MessagingException, IOException{        Authenticator auth = new Authenticator() {            public PasswordAuthentication getPasswordAuthentication() {                return new PasswordAuthentication("[e-mail]", "发送密码");            }        };//获取认证验证        Properties prop=new Properties();        prop.setProperty("mail.host","smtp.sohu.com");        prop.setProperty("mail.smtp.auth", "true");        prop.setProperty("mail.transport.protocol", "SMTP");//邮件配置信息        Session s=Session.getDefaultInstance(prop,auth);        MimeMessage me=new MimeMessage(s);        InternetAddress to=new InternetAddress("[e-mail]");        me.addRecipient(Message.RecipientType.TO, to);        me.setFrom(new InternetAddress("[e-mail]")); // 设置发送者        //me.setContent("hello world","text/html;utf-8");        me.setSubject("主题");        //me.setText("hello");        String source="C:\\Users\\佩\\Desktop\\2.html";        String content="";        String line=null;        BufferedReader br=new BufferedReader(new FileReader(source));        while((line=br.readLine())!=null){            content+=line;        }        br.close();        me.setContent(content, "text/html;charset=utf-8");        Transport t=s.getTransport("smtp");        t.send(me);    }    public static void main(String[] args) throws MessagingException, IOException {        new send2().SendMail();    }}

3.发送带附件的邮箱

package main;import java.io.BufferedReader;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.util.Properties;import javax.activation.DataHandler;import javax.activation.DataSource;import javax.activation.FileDataSource;import javax.mail.Authenticator;import javax.mail.BodyPart;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.Multipart;import javax.mail.PasswordAuthentication;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;import javax.mail.internet.MimeUtility;public class send2 {    public void SendMail() throws MessagingException, IOException{        Authenticator auth = new Authenticator() {            public PasswordAuthentication getPasswordAuthentication() {                return new PasswordAuthentication("[e-mail]", "04143114wp");            }        };//获取认证验证        Properties prop=new Properties();        prop.setProperty("mail.host","smtp.sohu.com");        prop.setProperty("mail.smtp.auth", "true");        prop.setProperty("mail.transport.protocol", "SMTP");//邮件配置信息        Session s=Session.getDefaultInstance(prop,auth);        MimeMessage me=new MimeMessage(s);        InternetAddress to=new InternetAddress("[e-mail]");        me.addRecipient(Message.RecipientType.TO, to);        me.setFrom(new InternetAddress("[e-mail]")); // 设置发送者        //me.setContent("hello world","text/html;utf-8");        me.setSubject("主题：创建带附件的邮件");        BodyPart bp=new MimeBodyPart();        bp.setText("带附件的邮件");        Multipart mp=new MimeMultipart();        mp.addBodyPart(bp);        BodyPart atachment=new MimeBodyPart();        String source="C:\\Users\\佩\\Desktop\\1.doc";        DataSource ds=new FileDataSource(source);//创建数据源        atachment.setDataHandler(new DataHandler(ds));//创建执行文件的指针        atachment.setFileName(MimeUtility.encodeWord("1.doc"));//设置附件中的文件名        mp.addBodyPart(atachment);        me.setContent(mp, "text/html;charset=utf-8");        Transport t=s.getTransport("smtp");        t.send(me);    }    public static void main(String[] args) throws MessagingException, IOException {        new send2().SendMail();    }}