邮箱javaman（邮箱注册）

关于Java中的JavaMail问题

给你个例子吧

/**

* @author EX-QINCIDONG001

* 验证

*/

public class MailAuthorization extends Authenticator {

private String username;

private String password;

public MailAuthorization(String username,String password) {

this.username = username;

this.password = password;

}

@Override

protected PasswordAuthentication getPasswordAuthentication() {

// TODO Auto-generated method stub

return new PasswordAuthentication(username,password);

}

}

public class MailInfo {

// 服务器地址

private String hostName;

// 端口

private String hostPort;

// 用户名

private String userName;

private String password;

public String getUserName() {

return this.userName;

}

public void setUserName(String userName) {

this.userName = userName;

}

public String getPassword() {

return this.password;

}

public void setPassword(String password) {

this.password = password;

}

// 是否需要验证

private boolean validate = false;

// 发件人

private String sender;

// 收件人

private String[] recvers = {};

// 抄送给哪些人

private String[] ccs = {};

// 邮件主题

private String subject;

// 邮件内容

private String content;

// 附件

private ListFile attaches;

public String getHostName() {

return this.hostName;

}

public void setHostName(String hostName) {

this.hostName = hostName;

}

public String getHostPort() {

return this.hostPort;

}

public void setHostPort(String hostPort) {

this.hostPort = hostPort;

}

public boolean isValidate() {

return this.validate;

}

public void setValidate(boolean validate) {

this.validate = validate;

}

public String getSender() {

return this.sender;

}

public void setSender(String sender) {

this.sender = sender;

}

public String[] getRecvers() {

return this.recvers;

}

public void setRecvers(String[] recvers) {

this.recvers = recvers;

}

public String[] getCcs() {

return this.ccs;

}

public void setCcs(String[] ccs) {

this.ccs = ccs;

}

public String getSubject() {

return this.subject;

}

public void setSubject(String subject) {

this.subject = subject;

}

public String getContent() {

return this.content;

}

public void setContent(String content) {

this.content = content;

}

public ListFile getAttaches() {

return this.attaches;

}

public void setAttaches(ListFile attaches) {

this.attaches = attaches;

}

}

public class MailSender {

private MailInfo mailInfo;

public MailSender(MailInfo mailInfo) {

this.mailInfo = mailInfo;

}

// 发送邮件方法

public void sendMail() throws MessagingException {

Properties props = System.getProperties();

props.setProperty("mail.transport.protocol", "smtp"); // smtp协议

props.put("mail.smtp.host", mailInfo.getHostName());

props.put("mail.smtp.port", mailInfo.getHostPort());

props.put("mail.smtp.auth", mailInfo.isValidate()?"true":"false");

Authenticator authenticator = new MailAuthorization(mailInfo.getUserName(),mailInfo.getPassword());

Session session = Session.getDefaultInstance(props, authenticator);

MimeMessage msg = new MimeMessage(session);

msg.setSubject(mailInfo.getSubject(), "utf-8");

Address address = new InternetAddress(mailInfo.getSender());

msg.setFrom(address);

// 收信人

Address[] recvs = new Address[mailInfo.getRecvers().length];

int index = 0;

if (mailInfo.getRecvers() != null) {

for (String s : mailInfo.getRecvers()) {

Address addr = new InternetAddress(s);

recvs[index] = addr;

index++;

}

}

msg.setRecipients(RecipientType.TO,recvs);

index = 0;

// 抄送

Address[] ccs = new Address[mailInfo.getCcs().length];

if (mailInfo.getCcs() != null) {

for (String s:mailInfo.getCcs()) {

Address addr = new InternetAddress(s);

ccs[index] = addr;

index++;

}

}

msg.setRecipients(RecipientType.CC, ccs);

Multipart mp = new MimeMultipart();

BodyPart part = new MimeBodyPart();

part.setContent(mailInfo.getContent(), "text/html;charset=utf-8");

// 增加附件

if (mailInfo.getAttaches() != null mailInfo.getAttaches().size() 0) { // 有附件

for (int i=0;imailInfo.getAttaches().size();i++) {

BodyPart bp = new MimeBodyPart();

FileDataSource fds = new FileDataSource((File) mailInfo.getAttaches().get(i));

bp.setDataHandler(new DataHandler(fds));

mp.addBodyPart(bp);

}

}

mp.addBodyPart(part);

msg.setContent(mp);

// Transport transport = session.getTransport();

Transport.send(msg);

}

}

public class TestMailSender {

/**

* @param args

*/

public static void main(String[] args) {

MailInfo mi = new MailInfo();

mi.setValidate(true);

mi.setUserName("ex-qincidong001@pingan.com.cn");

mi.setPassword("*******");

mi.setSubject("测试邮件发送");

mi.setSender("qincidong@163.com");

mi.setRecvers(new String[]{"ex-qincidong001@pingan.com.cn","qincidong@qq.com"});

mi.setHostPort("25");

mi.setHostName("smtp.163.com");

mi.setContent("a href=''百度/a百度知道");

// 添加附件

ListFile attaches = new ArrayListFile();

attaches.add(new File("D:\\qincidong\\资料\\Ejb\\EJB3.0入门经典-weblogic.pdf"));

attaches.add(new File("D:\\qincidong\\资料\\Ejb\\编写第一个EJB应用程序.doc"));

mi.setAttaches(attaches);

MailSender sender = new MailSender(mi);

try {

sender.sendMail();

System.out.println("邮件发送成功。");

} catch (MessagingException e) {

System.err.println("邮件发送失败");

e.printStackTrace();

}

}

}

java 定义一个"邮箱"用什么类型

java 定义一个"邮箱"必然用String类型

String 不是定义汉字类型的时候用的么?不是的。所有东西基本都可以用string来定义，所以string用的是最普遍的。

这时你会想问，那我所有东西都用string定义不就可以了么？为什么还要搞那么 多类型？

看下面

int,long等数字类型方便计算，比如1+1=2方便计算

boolean类型只有两个值，方便判断true和false，等等。

所以当不是日期，不是数字的些东西基本上都是用string业定义的

关于javamail发送邮件的回执

如果是指检验邮箱是否存在的话，没必要去发送邮件，当然如果发送邮件的话也是可以检验出来的，如果邮箱不存在的话，发送是失败的；更简单一点直接用javaMail中的connect去判定是否存在就可以了：

// 根据邮件会话属性和密码验证器构造一个发送邮件的session

Session sendMailSession = Session

.getDefaultInstance(pro, authenticator);

Transport transport = sendMailSession.getTransport();

// 连接邮件smtp服务器，参数分别为服务器地址，用户名和密码

transport.connect(serverHost, userName,

mpassword);

如果没有报错就返回true，说明邮箱确实存在，否则会抛出MessagingException异常。