在 Java 中注册时发送激活邮件

Question

我正在做一个Java项目。目前，用户可以成功注册。但我也想向用户发送激活邮件。 这是我的代码：-

public int RegisterDoc(Doctor user) {
try {

Class.forName("com.mysql.jdbc.Driver");
con  = DriverManager.getConnection("jdbc:mysql://localhost:3306/babycare","root","");
PreparedStatement sql = con.prepareStatement("INSERT INTO doctor(name,email,password,licno,active) VALUES(?,?,?,?,?)");
sql.setString(1, user.Username);
sql.setString(2, user.Email);
sql.setString(3, user.Password);
sql.setString(4, user.LicenceNo);
sql.setBoolean(5, user.active);
sql.execute();
return 1;

} catch (SQLException ex) {
Logger.getLogger(DbManager.class.getName()).log(Level.SEVERE, "ex happened !!!", ex);
return 0;
} catch (ClassNotFoundException ex) {
Logger.getLogger(DbManager.class.getName()).log(Level.SEVERE, null, ex);
return 0;
}catch(Exception ex){
Logger.getLogger(DbManager.class.getName()).log(Level.SEVERE, ex.getMessage(), ex);
return 0;
}finally{
try {
con.close();
} catch (SQLException ex) {
Logger.getLogger(DbManager.class.getName()).log(Level.SEVERE, null, ex);
}
}

}

我试图从谷歌和stackoverflow那里获得帮助，但我不知道该怎么做。如果您之前完成过此操作，请帮助我，请分享您的代码。

Answer 1

你需要使用 Java 邮件 jar 这是您可以做到的：-

import java.util.Properties;                                                                                                  
import javax.mail.Session;                                                                                                       
import javax.mail.Authenticator;                                                                                                 
import javax.mail.PasswordAuthentication;                                                                                        
import javax.mail.Message;                                                                                          
import javax.mail.internet.MimeMessage;                                                                                          
import javax.mail.internet.InternetAddress;                                                                                      
import javax.mail.Transport;
public int RegisterDoc(Doctor user) {
try {

Class.forName("com.mysql.jdbc.Driver");
con  = DriverManager.getConnection("jdbc:mysql://localhost:3306/babycare","root","");
PreparedStatement sql = con.prepareStatement("INSERT INTO doctor(name,email,password,licno,active) VALUES(?,?,?,?,?)");
sql.setString(1, user.Username);
sql.setString(2, user.Email);
sql.setString(3, user.Password);
sql.setString(4, user.LicenceNo);
sql.setBoolean(5, user.active);
sql.execute();
ResultSet rs = sql.getGeneratedKeys();
int generatedKey = 0;
if (rs.next()) {
generatedKey = rs.getInt(1);
}
//System.out.println("Inserted record's ID: " + generatedKey);
String smtpServer = "your smtp server";                                                                                                                   
String smtpPort = "your smtp port";                                                                                                                     
final String authAddress = "sender mail id";
final String authPassword = "password of the sender mail id";
String message = null;
String send = "send";                                                                                                 
String siteName="local";                                                                                                    
siteName=siteName.replaceAll("www.","");                                                                                                    
if(send!=null){
smtpServer = "your smtp server"; // Enter SMTP ADDRESS
smtpPort = "your smtp port";     //Enter SMTP PORT
subject = "New User Registration" ;//Subject       
email = "recepient mail id";   //Recepient Address
message = "n Dear: "+user.Username+" Click on this URL for Activation http://localhost:8080/ActivateDoc?id="+ generatedKey; 
//request.getParameter("message");  //Mail Body     
Properties props = new Properties();   
props.put("mail.smtp.host", smtpServer);
props.put("mail.smtp.port", smtpPort);   
props.put("mail.smtp.auth", "true");         
// create some properties and get the default Session
Session sessionMail = Session.getInstance(props, new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {     
return new PasswordAuthentication(authAddress, authPassword);
}                                                                   
});                                                                  
sessionMail.setDebug(true);
// create a message
Message msg = new MimeMessage(sessionMail);
// set the from and to address
InternetAddress addressFrom = new InternetAddress(authAddress);
msg.setFrom(addressFrom);
InternetAddress[] addressTo = new InternetAddress[1];
addressTo[0] = new InternetAddress(email);
msg.setRecipients(Message.RecipientType.TO, addressTo);
// Optional : You can also set your custom headers in the Email if you Want
msg.addHeader("site", siteName);
// Setting the Subject and Content Type
msg.setSubject(subject);
msg.setContent(message, "text/html");
Transport.send(msg);
return 1;
}
} catch (SQLException ex) {
Logger.getLogger(DbManager.class.getName()).log(Level.SEVERE, "ex happened !!!", ex);
return 0;
} catch (ClassNotFoundException ex) {
Logger.getLogger(DbManager.class.getName()).log(Level.SEVERE, null, ex);
return 0;
}catch(Exception ex){
Logger.getLogger(DbManager.class.getName()).log(Level.SEVERE, ex.getMessage(), ex);
return 0;
}finally{
try {
con.close();
} catch (SQLException ex) {
Logger.getLogger(DbManager.class.getName()).log(Level.SEVERE, null, ex);
}
}
return 0;
}

请尝试此操作，看看它是否适合您。