郵件發送
1.寫一個 MailSendProper 類封裝需要的屬性
import java.util.Properties;
public class MailSendProper {
private String Host ; //發送郵件服務器的ip
private String Port ; //發送郵件服務器的端口號
private String SendAddress ; //郵件發送者的地址
private String ReceiveAddress ; //郵件接受者的地址
private String username ; //登錄發送郵箱的用戶名
private String password ; //登錄發送郵箱的密碼
private boolean isvalidate = true ; //是否需要身份驗證
private String subject ; //郵件標題
private String content ; //郵件內容
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getHost() {
return Host;
}
public void setHost(String host) {
Host = host;
}
public String getPort() {
return Port;
}
public void setPort(String port) {
Port = port;
}
public String getSendAddress() {
return SendAddress;
}
public void setSendAddress(String sendAddress) {
SendAddress = sendAddress;
}
public String getReceiveAddress() {
return ReceiveAddress;
}
public void setReceiveAddress(String receiveAddress) {
ReceiveAddress = receiveAddress;
}
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 boolean isIsvalidate() {
return isvalidate;
}
public void setIsvalidate(boolean isvalidate) {
this.isvalidate = isvalidate;
}
public Properties getProperties(){
Properties properties = new Properties() ;
properties.put("mail.smtp.host", this.Host) ;
properties.put("mail.smtp.port", this.Port) ;
properties.put("mail.smtp.auth", isvalidate?"true":"false") ;
return properties ;
}
}
2、寫一個 EmailMessage 封裝 發送信息
public class EmailMessage {
private String title ;
private String context ;
private String toEmail ;
public EmailMessage() {
super();
}
public EmailMessage(String title, String context, String toEmail) {
super();
this.title = title;
this.context = context;
this.toEmail = toEmail;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getContext() {
return context;
}
public void setContext(String context) {
this.context = context;
}
public String getToEmail() {
return toEmail;
}
public void setToEmail(String toEmail) {
this.toEmail = toEmail;
}
}
3、寫一個 MailAttorney 郵箱密碼驗證器 類
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
public class MailAttorney extends Authenticator {
private String username ;
private String password ;
public MailAttorney(String username,String password) {
this.username = username ;
this.password = password ;
}
//覆蓋父類方法，獲取密碼認證器
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username,password) ;
}
}
4 、 寫一個 MailSend 郵件工具類
import java.util.Date;
import javax.mail.Address;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import com.VTBBS.entity.EmailMessage;
public class MailSend {
public static boolean mailTest(MailSendProper mailsender){
MailAttorney attorney = null ;
if(mailsender.isIsvalidate()){//判斷是否需要身份認證
attorney = new MailAttorney(mailsender.getUsername(),mailsender.getPassword()) ;
}
//根據郵箱會話屬性和密碼驗證器構造一個發送郵箱的seesion
Session session = Session.getInstance(mailsender.getProperties(),attorney) ;
//根據session創建一個郵件消息
Message mailMessage = new MimeMessage(session) ;
try {
//創建郵件發送者的地址
Address from = new InternetAddress(mailsender.getSendAddress()) ;
//設置郵箱消息的發送者
mailMessage.setFrom(from);
//創建郵件接收這的地址，並設置到郵件消息中
Address to = new InternetAddress(mailsender.getReceiveAddress()) ;
mailMessage.setRecipient(Message.RecipientType.TO, to);
mailMessage.setSubject(mailsender.getSubject()); //設置郵件標題
mailMessage.setSentDate(new Date()); //設置發送郵件時間
mailMessage.setText(mailsender.getContent()); //設置郵件內容
Transport.send(mailMessage);
return true ;
} catch (Exception e) {
e.printStackTrace();
return false ;
}
}
public static boolean sendEmail(EmailMessage message){
MailSendProper mail = new MailSendProper() ;
mail.setHost("smtp.126.com"); //smtp簡單的郵件傳輸協議，默認端口號是25，
mail.setPort("25");
mail.setIsvalidate(true); //需呀身份驗證
mail.setUsername(""); //設置登錄用戶名
mail.setPassword(""); //設置發送者的密碼
mail.setSendAddress(""); //設置發送這的地址 發送者地址和登錄用戶名是同一個
mail.setReceiveAddress(message.getToEmail()); //設置接收者的地址
mail.setSubject(message.getTitle()); //設置郵箱標題
mail.setContent(message.getContext()); //設置郵箱的內容
return mailTest(mail) ;
}
}
注意：使用的郵箱必須開啟POP3/SMTP服務 才能發送成功，
不同的郵箱，郵箱的傳輸協議不一樣如
QQ郵箱：SMTP傳輸協議是 smtp.qq.com 端口 25
POP3傳輸協議是 pop3.qq.com 端口 110
5、使用方法測試
public static void main(String[] args) {
EmailMessage message = new EmailMessage() ;
String code = String.valueOf(Math.random()).substring(3, 9) ; //生成驗證碼
message.setTitle("郵箱驗證"); //郵件標題
message.setContext("尊敬的用戶你好，你的驗證碼為"+code+"。"); //郵件內容
message.setToEmail("[email protected]"); //要發送給誰
System.out.println(MailSend.sendEmail(message)?"發送成功":"發送失敗") ;
}
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