利用javamail发送邮件实例

package com.test;

public class MailConfig {

private String from;//发件人
private String to;//收件人
private String host;//发送邮件服务器
private String password;//密码

public String getFrom() {
return from;
}
public void setFrom(String from) {
this.from = from;
}
public String getTo() {
return to;
}
public void setTo(String to) {
this.to = to;
}
public String getHost() {
return host;
}
public void setHost(String host) {
this.host = host;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}

package com.test;

import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
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;

public class SendMail {

public void sendMail(String subject,String content,MailConfig mailConfig,String fileNames){
Properties props = new Properties();
props.put("mail.smtp.host", mailConfig.getHost());

Session session = Session.getDefaultInstance(props,null);
Message message = new MimeMessage(session);

try{
message.setFrom(new InternetAddress(mailConfig.getFrom()));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(mailConfig.getTo()));
message.setSubject(subject);

BodyPart bodyPart = new MimeBodyPart();
bodyPart.setText(content);
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(bodyPart);

if(!(fileNames==null||fileNames.length()==0)){
String [] s = fileNames.split(",");
for(String fileName:s){
BodyPart messageBodyPart = new MimeBodyPart();
DataSource dataSource = new FileDataSource(fileName);
messageBodyPart.setDataHandler(new DataHandler(dataSource));
messageBodyPart.setFileName(dataSource.getName());
multipart.addBodyPart(messageBodyPart);
}
}

message.setContent(multipart);
Transport transport = session.getTransport("smtp");
transport.connect(mailConfig.getHost(), mailConfig.getFrom(), mailConfig.getPassword());
transport.sendMessage(message, message.getAllRecipients());
transport.close();

}catch(Exception e){
e.printStackTrace();
}
}
}

package com.test;

public class MailTest {

public static void main(String[] args) {

String subject = "测试";
String content = "邮件测试,带附件的测试！";

MailConfig mailConfig = new MailConfig();
mailConfig.setHost("smtp.sina.com.cn");//smtp服务器，我这用的是sina的smtp
mailConfig.setFrom("fengjiang1017@sina.com");//发件人邮箱
mailConfig.setTo("yang_fengjiang@163.com,snrqtdhuqf@163.com");//多个收件人使用逗号分隔
mailConfig.setPassword("xxxxxx");//发件人密码

SendMail mail = new SendMail();

//这是带附件的邮件发送，如果没有邮件，可以置fileNames=""或者fileNames=null
String fileNames = "d:/sof.sql,d:/myeclipse_templates_8.5.rar";
mail.sendMail(subject, content, mailConfig, fileNames);

System.out.println("发送成功！");
}
}