我目前正在一个 Java 项目中实现忘记密码功能。我的方法是，
用户单击忘记密码链接。
在忘记密码页面中，系统提示用户输入
他/她在系统中注册的电子邮件地址。包含给定电子邮件地址和重置密码页面链接的电子邮件。
用户单击该链接，他/她将被重定向到一个页面（重置密码），用户可以在其中输入他的新密码。
在重置密码页面中，“电子邮件地址”字段是自动填写的
，并且无法更改，因为它已禁用。然后用户输入他的新密码并更新数据库中与电子邮件地址相关的字段。
我在我的代码中尝试了这个，但在我的重置密码页面中，我没有得到想要更改密码的用户的电子邮件 ID。
MailUtil.java
package com.example.controller;
import java.io.IOException;
import java.security.Security;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import com.example.util.Database;
public class MailUtil {
private static final String USERNAME = "test@gmail.com";
private static final String PASSWORD = "test";
private static final String SUBJECT = "Reset Password link";
private static final String HOST = "smtp.gmail.com";
private static final String PORT = "465";
String email;
public MailUtil() {
// TODO Auto-generated constructor stub
email = this.email;
}
public boolean sendMail(String to, HttpServletRequest request) throws SQLException, ServletException, IOException{
Connection conn = Database.getConnection();
Statement st = conn.createStatement();
String sql = "select * from login where email = '" + to + "' ";
ResultSet rs = st.executeQuery(sql);
String pass = null;
String firstName = null;
while(rs.next()){
pass = rs.getString("pass");
firstName = rs.getString("firstName");
}
if(pass != null){
setEmailId(to);
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
Properties props = new Properties();
props.put("mail.smtp.host", HOST);
props.put("mail.stmp.user", USERNAME);
// If you want you use TLS
//props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.password", PASSWORD);
// If you want to use SSL
props.put("mail.smtp.port", PORT);
props.put("mail.smtp.socketFactory.port", PORT);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.auth", "true");
Session session = Session.getInstance(props, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
String username = USERNAME;
String password = PASSWORD;
return new PasswordAuthentication(username, password);
}
});
String from = USERNAME;
String subject = SUBJECT;
MimeMessage msg = new MimeMessage(session);
try{
msg.setFrom(new InternetAddress(from));
InternetAddress addressTo = new InternetAddress(to);
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
msg.setSubject(subject);
String vmFileContent = "Hello User, <br><br> Please Click <a href='http://192.168.15.159:8080/SampleLogin/new-password.jsp><strong>here</strong></a> to reset your password. <br><br><br> Thanks,<br>ProAmbi Team";
// Send the complete message parts
msg.setContent(vmFileContent,"text/html");
Transport transport = session.getTransport("smtp");
transport.send(msg);
System.out.println("Sent Successfully");
return true;
}catch (Exception exc){
System.out.println(exc);
return false;
}
}else{
//System.out.println("Email is not registered.");
request.setAttribute("errorMessage", "User with this email id doesn't exist.");
return false;
}
}
public String getEmailID() {
return email;
}
public void setEmailId(String email) {
this.email = email;
}
}
还有我的 new-password.jsp。
<%
MailUtil mail = new MailUtil();
String email = mail.getEmailID();
System.out.println("---> "+email);
%>
但我得到的是空值而不是电子邮件 ID。
你能帮我解决这个问题或获得任何其他选择吗？