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Imitation cattle forum project
2022-08-01 20:33:00 【i am cv master】
Personally record the functional modules that you find interesting
目录
2.1 Encrypt the user's information
2.2 User duplicate registration issue and user inactivation issue
2.3 Determine the specific URL information to send the email
1.发送邮件(包括html页面）
1.1 导入maven依赖
The function to send mail is encapsulated in spring中,可以直接调用,First import the corresponding dependencies
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
<version>2.1.5.RELEASE</version>
</dependency>1.2 修改配置文件
再修改一下application.properties配置文件,加入以下内容
# MailProperties
spring.mail.host=smtp.sina.com
spring.mail.port=465
spring.mail.username=你自己的邮箱地址
spring.mail.password=邮箱的授权码
spring.mail.protocol=smtps
spring.mail.properties.mail.smtp.ssl.enable=true
1.3 编写邮件发送工具类
好了,Next, let's start writing the tool class for sending emailsMailClient
@Component
public class MailClient {
private static final Logger logger = LoggerFactory.getLogger(MailClient.class);
@Autowired
private JavaMailSender mailSender;
@Value("${spring.mail.username}")
private String from;
public void sendMail(String to, String subject, String content) {
try {
MimeMessage message = mailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
mailSender.send(helper.getMimeMessage());
} catch (MessagingException e) {
logger.error("发送邮件失败:" + e.getMessage());
}
}
}1.4 工具类测试
Next, let's test this utility class
package com.nowcoder.community;
import com.nowcoder.community.util.MailClient;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration(classes = CommunityApplication.class)
public class MailTests {
@Autowired
private MailClient mailClient;
@Autowired
private TemplateEngine templateEngine;
//发送文字消息
@Test
public void testTextMail() {
mailClient.sendMail("[email protected]", "TEST", "Welcome.");
}
//发送网页(Web resources need to be prepared in advance)
@Test
public void testHtmlMail() {
//ContextThe body content of the web page
Context context = new Context();
//Assign a value to the variable of the text content
context.setVariable("username", "sunday");
//静态资源路径 template/context
String content = templateEngine.process("/mail/demo", context);
System.out.println(content);
//发送邮件
mailClient.sendMail("[email protected]", "HTML", content);
}
}
Web version test results
特别给力,This method can be used in the following account registration activation function module
2.登陆注册功能
Via the registration page,输入账号,密码,邮箱,点击注册后,The project will send a copy to the registered email addresshtml,点击html中的链接,for user activation.
2.1 Encrypt the user's information
用户的账号,Password registration,为安全性考虑,It cannot be stored directly into the database,The end is to learn,需要进行加密存储.Need to write an encryption tool class,对用户信息进行加密.
采用MD5加密方法,To prevent the password from being too simple,This leads to the problem that it is easy to crack even after encryption,The encryption salt is set,That is, after the original password,生成n位随机字符串,Then perform an overall encryption.
工具类如下所示
package com.nowcoder.community.util;
import org.apache.commons.lang3.StringUtils;
import org.springframework.util.DigestUtils;
import java.util.UUID;
public class CommunityUtil {
// 生成随机字符串
public static String generateUUID() {
return UUID.randomUUID().toString().replaceAll("-", "");
}
// MD5加密
// hello -> abc123def456,The disadvantage of this is that a simple password is still easy to crack after encryption
//Add a random string to the original account,再进行加密,这样不容易被破解
// hello + 3e4a8 -> abc123def456abc
public static String md5(String key) {
//空值不处理
if (StringUtils.isBlank(key)) {
return null;
}
//spring自带的mp5加密
return DigestUtils.md5DigestAsHex(key.getBytes());
}
}
2.2 User duplicate registration issue and user inactivation issue
Register the user's account,Email cannot be registered repeatedly,The account needs to be activated before it can be used,Accounts cannot be activated repeatedly.
Implementations cannot be registered repeatedly,That is, go to the database to find out whether it already exists,Account needs to be activated,Reactivation is not possible,By defining a set of constants,through changes in its properties,给userassign the corresponding value
package com.nowcoder.community.util;
public interface CommunityConstant {
/**
* 激活成功
*/
int ACTIVATION_SUCCESS = 0;
/**
* 重复激活
*/
int ACTIVATION_REPEAT = 1;
/**
* 激活失败
*/
int ACTIVATION_FAILURE = 2;
}
userThe class is as shown below
package com.nowcoder.community.entity;
import java.util.Date;
public class User {
private int id;
//用户名
private String username;
//密码
private String password;
//加密盐
private String salt;
//邮箱
private String email;
//用户种类
private int type;
//用户状态 0为未激活,1为激活
private int status;
//User's activation code
private String activationCode;
//用户的头像地址,获取头像
private String headerUrl;
//用户的注册时间
private Date createTime;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
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 getSalt() {
return salt;
}
public void setSalt(String salt) {
this.salt = salt;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public int getType() {
return type;
}
public void setType(int type) {
this.type = type;
}
public int getStatus() {
return status;
}
public void setStatus(int status) {
this.status = status;
}
public String getActivationCode() {
return activationCode;
}
public void setActivationCode(String activationCode) {
this.activationCode = activationCode;
}
public String getHeaderUrl() {
return headerUrl;
}
public void setHeaderUrl(String headerUrl) {
this.headerUrl = headerUrl;
}
public Date getCreateTime() {
return createTime;
}
public void setCreateTime(Date createTime) {
this.createTime = createTime;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
", salt='" + salt + '\'' +
", email='" + email + '\'' +
", type=" + type +
", status=" + status +
", activationCode='" + activationCode + '\'' +
", headerUrl='" + headerUrl + '\'' +
", createTime=" + createTime +
'}';
}
}
2.3 Determine the specific URL information to send the email
注册成功以后,The project will send an activation email to the user,Click the link inside to successfully activate the user.
加入配置项
# community域名
community.path.domain=http://localhost:8088编写service层,Implement the specific functions of registration,and sending and receiving emails,UserService
package com.nowcoder.community.service;
import com.nowcoder.community.dao.UserMapper;
import com.nowcoder.community.entity.User;
import com.nowcoder.community.util.CommunityConstant;
import com.nowcoder.community.util.CommunityUtil;
import com.nowcoder.community.util.MailClient;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
@Service
public class UserService implements CommunityConstant {
@Autowired
private UserMapper userMapper;
@Autowired
private MailClient mailClient;
@Autowired
private TemplateEngine templateEngine;
//@Value注解,Extract the value from the configuration file
@Value("${community.path.domain}")
private String domain;
//@Value注解,Extract the value from the configuration file
@Value("${server.servlet.context-path}")
private String contextPath;
public User findUserById(int id) {
return userMapper.selectById(id);
}
public Map<String, Object> register(User user) {
Map<String, Object> map = new HashMap<>();
// 空值处理
if (user == null) {
throw new IllegalArgumentException("参数不能为空!");
}
if (StringUtils.isBlank(user.getUsername())) {
map.put("usernameMsg", "账号不能为空!");
return map;
}
if (StringUtils.isBlank(user.getPassword())) {
map.put("passwordMsg", "密码不能为空!");
return map;
}
if (StringUtils.isBlank(user.getEmail())) {
map.put("emailMsg", "邮箱不能为空!");
return map;
}
// 验证账号
User u = userMapper.selectByName(user.getUsername());
if (u != null) {
map.put("usernameMsg", "该账号已存在!");
return map;
}
// 验证邮箱
u = userMapper.selectByEmail(user.getEmail());
if (u != null) {
map.put("emailMsg", "该邮箱已被注册!");
return map;
}
// 注册用户
//加密盐
user.setSalt(CommunityUtil.generateUUID().substring(0, 5));
//The original registration password plus the encryption salt,再用md5进行加密,Such passwords are difficult to crack
user.setPassword(CommunityUtil.md5(user.getPassword() + user.getSalt()));
//用户种类
user.setType(0);
//是否被激活
user.setStatus(0);
//激活码
user.setActivationCode(CommunityUtil.generateUUID());
//生成随机头像,Parameters are URL patterns+(图片序号)
user.setHeaderUrl(String.format("http://images.nowcoder.com/head/%dt.png", new Random().nextInt(1000)));
user.setCreateTime(new Date());
userMapper.insertUser(user);
// 激活邮件
Context context = new Context();
context.setVariable("email", user.getEmail());
// http://localhost:8080/community/activation/101/code 项目的访问路径,展示在网页上
String url = domain + contextPath + "/activation/" + user.getId() + "/" + user.getActivationCode();
context.setVariable("url", url);
//Put the body content into the template engine,Jump to accesstemplate文件夹下mail文件夹下的activation.html资源
String content = templateEngine.process("/mail/activation", context);
mailClient.sendMail(user.getEmail(), "激活账号", content);
return map;
}
public int activation(int userId, String code) {
User user = userMapper.selectById(userId);
//重复激活
if (user.getStatus() == 1) {
return ACTIVATION_REPEAT;
}
//成功激活
else if (user.getActivationCode().equals(code)) {
userMapper.updateStatus(userId, 1);
return ACTIVATION_SUCCESS;
}
//激活失败
else {
return ACTIVATION_FAILURE;
}
}
}
以及对应的Controller层 LoginController
package com.nowcoder.community.controller;
import com.nowcoder.community.entity.User;
import com.nowcoder.community.service.UserService;
import com.nowcoder.community.util.CommunityConstant;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import java.util.Map;
@Controller
public class LoginController implements CommunityConstant {
@Autowired
private UserService userService;
@RequestMapping(path = "/register", method = RequestMethod.GET)
public String getRegisterPage() {
return "/site/register";
}
@RequestMapping(path = "/login", method = RequestMethod.GET)
public String getLoginPage() {
return "/site/login";
}
//Register the triggered function,If successful, an email will be sent
@RequestMapping(path = "/register", method = RequestMethod.POST)
public String register(Model model, User user) {
Map<String, Object> map = userService.register(user);
//成功
if (map == null || map.isEmpty()) {
model.addAttribute("msg", "注册成功,我们已经向您的邮箱发送了一封激活邮件,请尽快激活!");
model.addAttribute("target", "/index");
//页面跳转
return "/site/operate-result";
}
//失败
else {
model.addAttribute("usernameMsg", map.get("usernameMsg"));
model.addAttribute("passwordMsg", map.get("passwordMsg"));
model.addAttribute("emailMsg", map.get("emailMsg"));
return "/site/register";
}
}
//发送激活邮件,A function that is triggered by clicking on a link,By reading the parameters in the request address,Determine if the activation code is valid,Determines whether the user has successfully activated
// http://localhost:8080/community/activation/101/code
@RequestMapping(path = "/activation/{userId}/{code}", method = RequestMethod.GET)
public String activation(Model model, @PathVariable("userId") int userId, @PathVariable("code") String code) {
int result = userService.activation(userId, code);
if (result == ACTIVATION_SUCCESS) {
model.addAttribute("msg", "激活成功,您的账号已经可以正常使用了!");
model.addAttribute("target", "/login");
} else if (result == ACTIVATION_REPEAT) {
model.addAttribute("msg", "无效操作,该账号已经激活过了!");
model.addAttribute("target", "/index");
} else {
model.addAttribute("msg", "激活失败,您提供的激活码不正确!");
model.addAttribute("target", "/index");
}
return "/site/operate-result";
}
}
The registration interface isregister.html
<!doctype html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link rel="icon" href="https://static.nowcoder.com/images/logo_87_87.png"/>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" crossorigin="anonymous">
<link rel="stylesheet" th:href="@{/css/global.css}" />
<link rel="stylesheet" th:href="@{/css/login.css}" />
<title>牛客网-注册</title>
</head>
<body>
<div class="nk-container">
<!-- 头部 -->
<header class="bg-dark sticky-top" th:replace="index::header">
<div class="container">
<!-- 导航 -->
<nav class="navbar navbar-expand-lg navbar-dark">
<!-- logo -->
<a class="navbar-brand" href="#"></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<!-- 功能 -->
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item ml-3 btn-group-vertical">
<a class="nav-link" href="../index.html">首页</a>
</li>
<li class="nav-item ml-3 btn-group-vertical">
<a class="nav-link position-relative" href="letter.html">消息<span class="badge badge-danger">12</span></a>
</li>
<li class="nav-item ml-3 btn-group-vertical">
<a class="nav-link" href="register.html">注册</a>
</li>
<li class="nav-item ml-3 btn-group-vertical">
<a class="nav-link" href="login.html">登录</a>
</li>
<li class="nav-item ml-3 btn-group-vertical dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<img src="http://images.nowcoder.com/head/1t.png" class="rounded-circle" style="width:30px;"/>
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item text-center" href="profile.html">个人主页</a>
<a class="dropdown-item text-center" href="setting.html">账号设置</a>
<a class="dropdown-item text-center" href="login.html">退出登录</a>
<div class="dropdown-divider"></div>
<span class="dropdown-item text-center text-secondary">nowcoder</span>
</div>
</li>
</ul>
<!-- 搜索 -->
<form class="form-inline my-2 my-lg-0" action="search.html">
<input class="form-control mr-sm-2" type="search" aria-label="Search" />
<button class="btn btn-outline-light my-2 my-sm-0" type="submit">搜索</button>
</form>
</div>
</nav>
</div>
</header>
<!-- 内容 -->
<div class="main">
<div class="container pl-5 pr-5 pt-3 pb-3 mt-3 mb-3">
<h3 class="text-center text-info border-bottom pb-3">注 册</h3>
<form class="mt-5" method="post" th:action="@{/register}">
<div class="form-group row">
<label for="username" class="col-sm-2 col-form-label text-right">账号:</label>
<div class="col-sm-10">
<input type="text"
th:class="|form-control ${usernameMsg!=null?'is-invalid':''}|"
th:value="${user!=null?user.username:''}"
id="username" name="username" placeholder="请输入您的账号!" required>
<div class="invalid-feedback" th:text="${usernameMsg}">
该账号已存在!
</div>
</div>
</div>
<div class="form-group row mt-4">
<label for="password" class="col-sm-2 col-form-label text-right">密码:</label>
<div class="col-sm-10">
<input type="password"
th:class="|form-control ${passwordMsg!=null?'is-invalid':''}|"
th:value="${user!=null?user.password:''}"
id="password" name="password" placeholder="请输入您的密码!" required>
<div class="invalid-feedback" th:text="${passwordMsg}">
密码长度不能小于8位!
</div>
</div>
</div>
<div class="form-group row mt-4">
<label for="confirm-password" class="col-sm-2 col-form-label text-right">确认密码:</label>
<div class="col-sm-10">
<input type="password" class="form-control"
th:value="${user!=null?user.password:''}"
id="confirm-password" placeholder="请再次输入密码!" required>
<div class="invalid-feedback">
两次输入的密码不一致!
</div>
</div>
</div>
<div class="form-group row">
<label for="email" class="col-sm-2 col-form-label text-right">邮箱:</label>
<div class="col-sm-10">
<input type="email"
th:class="|form-control ${emailMsg!=null?'is-invalid':''}|"
th:value="${user!=null?user.email:''}"
id="email" name="email" placeholder="请输入您的邮箱!" required>
<div class="invalid-feedback" th:text="${emailMsg}">
该邮箱已注册!
</div>
</div>
</div>
<div class="form-group row mt-4">
<div class="col-sm-2"></div>
<div class="col-sm-10 text-center">
<button type="submit" class="btn btn-info text-white form-control">立即注册</button>
</div>
</div>
</form>
</div>
</div>
<!-- 尾部 -->
<footer class="bg-dark">
<div class="container">
<div class="row">
<!-- 二维码 -->
<div class="col-4 qrcode">
<img src="https://uploadfiles.nowcoder.com/app/app_download.png" class="img-thumbnail" style="width:136px;" />
</div>
<!-- 公司信息 -->
<div class="col-8 detail-info">
<div class="row">
<div class="col">
<ul class="nav">
<li class="nav-item">
<a class="nav-link text-light" href="#">关于我们</a>
</li>
<li class="nav-item">
<a class="nav-link text-light" href="#">加入我们</a>
</li>
<li class="nav-item">
<a class="nav-link text-light" href="#">意见反馈</a>
</li>
<li class="nav-item">
<a class="nav-link text-light" href="#">企业服务</a>
</li>
<li class="nav-item">
<a class="nav-link text-light" href="#">联系我们</a>
</li>
<li class="nav-item">
<a class="nav-link text-light" href="#">免责声明</a>
</li>
<li class="nav-item">
<a class="nav-link text-light" href="#">友情链接</a>
</li>
</ul>
</div>
</div>
<div class="row">
<div class="col">
<ul class="nav btn-group-vertical company-info">
<li class="nav-item text-white-50">
公司地址：北京市朝阳区大屯路东金泉时代3-2708北京牛客科技有限公司
</li>
<li class="nav-item text-white-50">
联系方式：010-60728802(电话) [email protected]
</li>
<li class="nav-item text-white-50">
牛客科技2018 All rights reserved
</li>
<li class="nav-item text-white-50">
京ICP备14055008号-4
<img src="http://static.nowcoder.com/company/images/res/ghs.png" style="width:18px;" />
京公网安备 11010502036488号
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</footer>
</div>
<script src="https://code.jquery.com/jquery-3.3.1.min.js" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" crossorigin="anonymous"></script>
<script th:src="@{/js/global.js}"></script>
<script th:src="@{/js/register.js}"></script>
</body>
</html>
激活界面activation.html
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Zheng Xiangling, Chairman of Tide Pharmaceuticals, won the "2022 Outstanding Influential Entrepreneur Award" Tide Pharmaceuticals won the "Corporate Social Responsibility Model Award"
【kali-信息收集】（1.5）系统指纹识别：Nmap、p0f