java web通过163邮箱重置登录密码
来源：互联网 发布：淘宝客网站模板 编辑：程序博客网 时间：2024/05/14 20:11
许多开发项目中都需要用到邮箱实现找回密码或者重置密码的功能，就是改变数据库中存储的密码。根据在网上找的一些Javaweb通过邮箱找回密码的例子并和带我的研究生学长一起改了改，也成功开发了一个重置密码的小程序。
开发工具：myeclipse10。MySQL数据库。
项目结构:
password.dat里面存放的是163邮箱的授权码，不是登录密码，关于授权码可以自行百度了解下，并且在运行程序是，163邮箱要处于登录状态
下面将各个包中的代码包中的代码粘贴出来
com.ningmeng.util
package com.ningmeng.util;import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.SQLException; public class DbUtil { private String url="jdbc:mysql://localhost:3306/db-jsp"; private String user="root"; private String password="123"; private String driver="com.mysql.jdbc.Driver"; public Connection getCon() throws Exception{ Class.forName(driver); Connection con=DriverManager.getConnection(url, user, password); return con; } public static void getClose(Connection con) throws SQLException{ if(con!=null){ con.close(); } }}org.study.accountactivate.dao
package org.study.accountactivate.dao; import org.study.accountactivate.domail.User; public interface UserDao { User findUserByNameOrEmail(String nameOrEmail); boolean UpdateByName(String userName,String newPassword);} org.study.accountactivate.dao.impl
package org.study.accountactivate.dao.impl; import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.Collection; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.UUID; import org.study.accountactivate.dao.UserDao; import org.study.accountactivate.domail.User; import com.ningmeng.util.DbUtil;public class UserDaoImpl implements UserDao { private static UserDaoImpl instance = new UserDaoImpl(); private UserDaoImpl() {} public static UserDaoImpl getInstance() { return instance; } Map<Integer,User> users = new HashMap<Integer, User>(); int nextId = 1; @Override public User findUserByNameOrEmail(String nameOrEmail) { User user=new User(); DbUtil db=new DbUtil(); String sql="select * from user where email=?"; PreparedStatement ps; try{ Connection conn=db.getCon(); ps=conn.prepareStatement(sql); ps.setString(1, nameOrEmail); ResultSet rs=ps.executeQuery(); if(rs.next()){ user.setUserName(rs.getString(2)); user.setPassword(rs.getString(3)); user.setEmail(rs.getString(5)); } return user; }catch(SQLException e) { e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } public boolean UpdateByName(String userName,String newPassword){ boolean flag=false; DbUtil db=new DbUtil(); String sql="update user set password=? where userName=?"; PreparedStatement ps; try{ Connection conn=db.getCon(); ps=conn.prepareStatement(sql); ps.setString(1,newPassword); ps.setString(2, userName); flag=ps.executeUpdate()>0; }catch(SQLException e) { e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return flag; }} org.study.accountactivate.domail
package org.study.accountactivate.domail; public class User { // 用户名 private String userName; // 密码 private String password; // email private String email; // 是否激活 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 getEmail() { return email; } public void setEmail(String email) { this.email = email; } } org.study.accountactivate.util
package org.study.accountactivate.util; import java.io.IOException; import java.io.InputStream; import java.util.Date; import java.util.Properties; import javax.mail.Authenticator; import javax.mail.Message.RecipientType; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import org.study.accountactivate.domail.User; public class EmailUtils { private static final String FROM = "linmao510322@163.com"; /** * 发送重设密码链接的邮件 */ public static void sendResetPasswordEmail(User user ,String userEmail) { Session session = getSession(); MimeMessage message = new MimeMessage(session); try { message.setSubject("找回您的帐户与密码"); message.setSentDate(new Date()); message.setFrom(new InternetAddress(FROM)); message.setRecipient(RecipientType.TO, new InternetAddress(userEmail)); message.setContent("要使用新的密码, 请使用以下链接启用密码:<br/><a href='" + GenerateLinkUtils.generateResetPwdLink(user) +"'>点击重新设置密码</a>","text/html;charset=utf-8"); // 发送邮件 Transport.send(message); } catch (Exception e) { e.printStackTrace(); } } public static Session getSession() { Properties props = new Properties(); props.setProperty("mail.transport.protocol", "smtp"); props.setProperty("mail.smtp.host", "smtp.163.com"); props.setProperty("mail.smtp.port", "25"); props.setProperty("mail.smtp.auth", "true"); Session session = Session.getInstance(props, new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { String password = null; InputStream is = EmailUtils.class.getResourceAsStream("password.dat"); byte[] b = new byte[1024]; try { int len = is.read(b); password = new String(b,0,len); } catch (IOException e) { e.printStackTrace(); } return new PasswordAuthentication(FROM, password); } }); return session; } } org.study.accountactivate.util
package org.study.accountactivate.util; import org.study.accountactivate.domail.User; /** * 生成帐户激活、重新设置密码的链接 */ public class GenerateLinkUtils { /** * 生成重设密码的链接 */ public static String generateResetPwdLink(User user) { return "http://localhost:8080/dddd/resetPassword.jsp"; } } org.study.accountactivate.web.servlet
package org.study.accountactivate.web.servlet;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.study.accountactivate.dao.UserDao;import org.study.accountactivate.dao.impl.UserDaoImpl;import org.study.accountactivate.domail.User;import org.study.accountactivate.util.EmailUtils;/** * 发送重设密码申请的链接 */public class ForgotPwdServlet extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); String Email = request.getParameter("Email"); UserDao userDao = UserDaoImpl.getInstance(); User user = userDao.findUserByNameOrEmail(Email); if (user == null) { request.setAttribute("errorMsg", Email + "，不存在！"); request.getRequestDispatcher("/forgotPwd.jsp").forward(request, response); return; } // 发送重新设置密码的链接 EmailUtils.sendResetPasswordEmail(user,Email); request.setAttribute("sendMailMsg", "您的申请已提交成功，请查看您的"+user.getEmail()+"邮箱。"); request.getRequestDispatcher("/forgotPwdSuccess.jsp").forward(request, response); }}org.study.accountactivate.web.servlet
package org.study.accountactivate.web.servlet; import java.io.IOException; import java.util.HashMap; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.study.accountactivate.dao.UserDao; import org.study.accountactivate.dao.impl.UserDaoImpl; import org.study.accountactivate.domail.User; /** * 重新设置密码 */ public class ResetPasswordServlet extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); String userName = request.getParameter("userName"); String newPassword = request.getParameter("newPassword"); String newPassword2 = request.getParameter("newPassword2"); Map<String,String> errors = new HashMap<String, String>(); if (newPassword == null || "".equals(newPassword)) { errors.put("newPassword", "新密码不能为空！"); } if (newPassword2 == null || "".equals(newPassword2)) { errors.put("newPassword2", "确认新密码不能为空！"); } if (!newPassword.equals(newPassword2)) { errors.put("passwordError", "两次输入的密码不一致！"); } if (!errors.isEmpty()) { request.setAttribute("errors", errors); request.getRequestDispatcher("/resetPassword?userName=" + userName).forward(request, response); return; } UserDao userDao = UserDaoImpl.getInstance(); boolean flag = userDao.UpdateByName(userName,newPassword); request.getRequestDispatcher("/resetPasswordSuccess.jsp").forward(request, response); } } web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <display-name></display-name> <welcome-file-list> <welcome-file>login.jsp</welcome-file> </welcome-file-list> <servlet> <description>找回密码页面</description> <display-name>ForgotPwdUIServlet</display-name> <servlet-name>ForgotPwdUIServlet</servlet-name> <servlet-class>org.study.accountactivate.web.servlet.ForgotPwdUIServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>ForgotPwdUIServlet</servlet-name> <url-pattern>/forgotPwdUI</url-pattern> </servlet-mapping> <servlet> <description></description> <display-name>ForgotPwdServlet</display-name> <servlet-name>ForgotPwdServlet</servlet-name> <servlet-class>org.study.accountactivate.web.servlet.ForgotPwdServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>ForgotPwdServlet</servlet-name> <url-pattern>/forgotPwd</url-pattern> </servlet-mapping> <servlet> <description>重新设置密码</description> <display-name>ResetPasswordServlet</display-name> <servlet-name>ResetPasswordServlet</servlet-name> <servlet-class>org.study.accountactivate.web.servlet.ResetPasswordServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>ResetPasswordServlet</servlet-name> <url-pattern>/resetPassword</url-pattern> </servlet-mapping> <servlet> <description>重新设置密码页面</description> <display-name>ResetPasswordUIServlet</display-name> <servlet-name>ResetPasswordUIServlet</servlet-name> <servlet-class>org.study.accountactivate.web.servlet.ResetPasswordUIServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>ResetPasswordUIServlet</servlet-name> <url-pattern>/resetPasswordUI</url-pattern> </servlet-mapping></web-app>forgotPwd.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>重设密码申请</title></head><body> <form action="${pageContext.request.contextPath}/forgotPwd" method="post"> <span style="color: red">${requestScope.sendMailMsg}</span> 邮箱：<input type="text" name="Email" /><span style="color: red">${requestScope.errorMsg}</span><br/> <input type="submit" value="提交" /><a href=""></a> </form></body></html>forgotPwdSuccess.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>重新设置密码申请成功</title></head><body> <h3>${requestScope.sendMailMsg}</h3></body></html>login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>登陆</title><style type="text/css"> .error { color: red; padding-left:2px; }</style></head><body> <a href="${pageContext.request.contextPath}/forgotPwd.jsp">忘记密码？</a> </body></body></html>resetPassword.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>重新设置密码</title><style type="text/css"> .error { color: red; padding-left:5px; }</style></head><body> <form action="${pageContext.request.contextPath}/resetPassword" method="post"> <span class="error" style="display: block;">${errors.passwordError}</span> 用户名：<input type="text" name="userName" value="${userName}" /><br/> 新密码：<input type="password" name="newPassword" /><span class="error">${errors.newPassword }</span><br/> 确认新密码：<input type="password" name="newPassword2"/><span class="error">${errors.newPassword2 }</span><br/> <input type="submit" value="修改" /> </form></body></html>resetPasswordSuccess.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>密码修改成功</title></head><body> <h3>密码修改成功！</h3><a href="${pageContext.request.contextPath }/login">登录</a></body></html>数据库设计
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