java 发送电子邮件(从 excel读取地址,设置发送间歇)

try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(user));
//message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
//////////////////////java send mail 的库文件//////////////////////
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
//message.setSubject("javatpoint");
message.setText("This is simple program of sending email using JavaMail API");
//body
messageBodyPart2.setFileName(filename);
//5) create Multipart object and add MimeBodyPart objects to this object
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messageBodyPart1);
multipart.addBodyPart(messageBodyPart2);
//6) set the multiplart object to the message object
//int Min = 5;
//int Max = 10;
//int result = Min + (int)(Math.random() * ((Max - Min) + 1));
long result= 3000 + (int)(Math.random()*((6000 - 3000) + 1));
String filename="SendMailBySite.java";
DataSource source = new FileDataSource(FilenameSourse);
messageBodyPart2.setDataHandler(new DataHandler(source));
// String Subjecti="0";
String host="";
final String user="youxiang@";//change accordingly
final String password="password";//change accordingly
Session session = Session.getDefaultInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
}
workbook.close();
//Compose the message
}//////end public static void main(String[] args)
}//////end public class SendMailBySite
{
to=sheet.getCell(1,i).getContents();
System.out.println(to);
////try...
////begin try
File file = new File("D://javatest//SendMailBySite/output.xls");
Workbook workbook= Workbook.getWorkbook(file);
Sheet sheet = workbook.getSheet(0);
//////////////////////////////end 读取excle文件/////////////////////////////////////////
//send the message
for (int i=0;i<=5;i++)
public class SendMailBySite {
public static void main(String[] args) throws IOException, BiffException, InterruptedException {
///////////////////////////邮箱初始化///////////////////////////////
String to="send to";//change accordingly
//Get the session object
Properties props = new Properties();
props.put("mail.smtp.host",host);
props.put("mail.smtp.auth", "true");
MimeBodyPart messageBodyPart2 = new MimeBodyPart();
String FilenameSourse = "D:\\javatest\\SendMailBySite\\test.txt";//change accordingly
return new PasswordAuthentication(user,password);
}
});
///////////////////////////end 邮箱初始化///////////////////////////////
///////////////////////////读取excle文件///////////////////////////////
//import java.util.*;
//////////////////////end java send mail 的库文件//////////////////////
/////////////////////java 操作excel的库文件////////////////////////////
import java.io.File;
import java.io.IOException;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import bel;
//_____________________body begin__________________________________________
//3) create MimeBodyPart object and set your message text
message.setSubject(Integer.toString(i));
///////注意：主题只能设置一次。
Transport.send(message);
System.out.println("message sent successfully...");
Thread.sleep(result);
System.out.println(result);
} catch (MessagingException e) {e.printStackTrace();}
//////////////////////////end try//////////////////////////
message.setContent(multipart );
//______________________________body end________________________________________
message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
BodyPart messageBodyPart1 = new MimeBodyPart();
messageBodyPart1.setText("This is message body");

//4) create new MimeBodyPart object and set DataHandler object to this object
import jxl.write.Number;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
/////////////////////java 操作excel的库文件////////////////////////////