import java.io.Serializable;  
/** 
 * 郵件實體類 
 */  
public class Mail implements Serializable {  
 /** 
  * 序列號 
  */ 
 private static final long serialVersionUID = -3562218214168975242L; 
 /** 
  * 郵件編碼s 
  */ 
 public static final String ENCODEING = "UTF-8";  
 /** 
  * 服務器地址 
  */ 
 private String host; 
 /** 
  * 服務器端口號 
  */ 
 private String portNumber;  
 /** 
  * 發(fā)件人的郵箱 
  */ 
 private String sender;  
 /** 
  * 收件人的郵箱 
  */  
 private String receiver;  
 /** 
  * 發(fā)件人昵稱 
  */  
 private String name;  
 /** 
  * 賬號 
  */  
 private String username;  
 /** 
  * 密碼 
  */  
 private String password;  
 /** 
  * 主題 
  */ 
 private String subject; 
 /** 
  * 信息(支持HTML) 
  */ 
 private String message;  
  
 public String getHost() {  
  return host;  
 }  
  
 public void setHost(String host) {  
  this.host = host;  
 }  
  
 public String getSender() {  
  return sender;  
 }  
  
 public String getPortNumber() { 
  return portNumber; 
 } 
 
 public void setPortNumber(String portNumber) { 
  this.portNumber = portNumber; 
 } 
 
 public void setSender(String sender) {  
  this.sender = sender;  
 }  
  
 public String getReceiver() {  
  return receiver;  
 }  
  
 public void setReceiver(String receiver) {  
  this.receiver = receiver;  
 }  
  
 public String getName() {  
  return name;  
 }  
  
 public void setName(String name) {  
  this.name = name;  
 }  
  
 public String getUsername() {  
  return username;  
 }  
  
 public void setUsername(String username) {  
  this.username = username;  
 }  
  
 public String getPassword() {  
  return password;  
 }  
  
 public void setPassword(String password) {  
  this.password = password;  
 }  
  
 public String getSubject() {  
  return subject;  
 }  
  
 public void setSubject(String subject) {  
  this.subject = subject;  
 }  
  
 public String getMessage() {  
  return message;  
 }  
  
 public void setMessage(String message) {  
  this.message = message;  
 }  
  
} 

import org.apache.commons.mail.EmailException; 
import org.apache.commons.mail.HtmlEmail; 
 
public class MailUtil {  
  
 public boolean send(Mail mail) {  
  //發(fā)送email對象 
  HtmlEmail email = new HtmlEmail();  
  try {  
   //這里是SMTP發(fā)送服務器的名字 
   email.setHostName(mail.getHost());  
   //端口號不為空時,用戶自定義的端口號為SMTP發(fā)送服務器端口號 
   if (!"".equals(mail.getPortNumber())) { 
    email.setSSLOnConnect(true);  
    email.setSslSmtpPort(mail.getPortNumber()); 
   } 
   //字符編碼集的設(shè)置  
   email.setCharset(Mail.ENCODEING);  
   //收件人的郵箱  
   email.addTo(mail.getReceiver());  
   //發(fā)送人的郵箱  
   email.setFrom(mail.getSender(), mail.getName());  
   // 如果需要認證信息的話，設(shè)置認證：用戶名-密碼。分別為發(fā)件人在郵件服務器上的注冊名稱和密碼  
   email.setAuthentication(mail.getUsername(), mail.getPassword());  
   // 要發(fā)送的郵件主題  
   email.setSubject(mail.getSubject());  
   // 要發(fā)送的信息，由于使用了HtmlEmail，可以在郵件內(nèi)容中使用HTML標簽  
   email.setMsg(mail.getMessage());  
   // 發(fā)送  
   email.send();  
   return true;  
  } catch (EmailException e) {  
   e.printStackTrace();  
   return false;  
  }  
 }  
} 

import java.util.Random; 
 
 
public class SimpleEmailClient { 
 
 public static void main(String[] args) throws InterruptedException { 
  Mail mail = new Mail(); 
  mail.setHost("smtp.qq.com"); // 設(shè)置郵件服務器,如果不用QQ郵箱的,自己找找看相關(guān)的 
  mail.setPortNumber("465"); // 設(shè)置郵件服務器端口號,默認25 
  mail.setSender("xxxx@qq.com"); // 發(fā)送人 
  mail.setName("楊大俠"); // 發(fā)送人昵稱 
  mail.setSubject("好吃美味"); //發(fā)送主題 
  mail.setMessage("好吃美味"); //發(fā)送內(nèi)容 
  mail.setUsername("xxxx@qq.com"); // 登錄賬號,一般都是和郵箱名一樣 
  mail.setPassword("********"); // QQ郵箱登錄第三方客戶端時,密碼框請輸入“授權(quán)碼”進行驗證。其他的密碼具體查看郵件服務器的說明 
   
  for (int i = 0; i < 1000; i++) { 
    
   //Thread.sleep(2000); 
    
   int max1 = 99999; 
   int min1 = 10000; 
   Random random = new Random(); 
   int f = random.nextInt(max1)%(max1-min1+1) + min1; 
    
   int max2 = 9999; 
   int min2 = 1000; 
   Random random2 = new Random(); 
   int s = random2.nextInt(max2)%(max2-min2+1) + min2; 
   String account = "" + f + "" + s + "@qq.com"; 
    
   mail.setReceiver(account); // 接收人 
   System.out.println(account); 
   if (new MailUtil().send(mail)) { 
    System.out.println("發(fā)送成功"); 
   } else { 
    System.out.println("發(fā)送失敗"); 
   } 
  } 
   
 } 
}