Java旅游网站 java旅游网站项目总结成果

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lgmyxbjfu 2023-06-15 20:31:44

文章标签 Java旅游网站 java 前端开发语言 User 文章分类 Java 后端开发

知识概述
Web层
a) Servlet：前端控制器
b) html：视图
c) Filter：过滤器
d) BeanUtils：数据封装
e) Jackson：json序列化工具
Service层
f) Javamail：java发送邮件工具
g) Redis：nosql内存数据库
h) Jedis：java的redis客户端
Dao层
i) Mysql：数据库
j) Druid：数据库连接池
k) JdbcTemplate：jdbc的工具

创建数据库

Java旅游网站 java旅游网站项目总结成果_Java旅游网站

前台表单校验

//用正则表达式校验账号密码是否符合规范	
function checkUsername() {
             //1.获取用户名值
   var username = $("#username").val();
   //2.定义正则
   var reg_username = /^\w{8,20}$/;
   
   //3.判断，给出提示信息
    var flag = reg_username.test(username);
    if(flag){
        //用户名合法
                 $("#username").css("border","");
   }else{
        //用户名非法,加一个红色边框
      $("#username").css("border","1px solid red");
   }
             return flag;
         }

前台异步提交表单

$(function () {
             //当表单提交时，调用所有的校验方法
   $("#registerForm").submit(function(){

                 return checkUsername() && checkPassword() && checkEmail();
                 //如果这个方法没有返回值，或者返回为true，则表单提交，如果返回为false，则表单不提交
   });
             //当某一个组件失去焦点是，调用对应的校验方法
   		$("#username").blur(checkUsername);
             $("#password").blur(checkPassword);
             $("#email").blur(checkEmail);
         });

后台servlet

@WebServlet("/user/*") // /user/add /user/find
public class UserServlet extends BaseServlet {
    //声明UserService业务对象
    private UserService service = new UserServiceImpl();
    /**
     * 注册功能
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    public void regist(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //验证校验
        String check = request.getParameter("check");
        //从sesion中获取验证码
        HttpSession session = request.getSession();
        String checkcode_server = (String) session.getAttribute("CHECKCODE_SERVER");
        session.removeAttribute("CHECKCODE_SERVER");//为了保证验证码只能使用一次
        //比较
        if(checkcode_server == null || !checkcode_server.equalsIgnoreCase(check)){
            //验证码错误
            ResultInfo info = new ResultInfo();
            //注册失败
            info.setFlag(false);
            info.setErrorMsg("验证码错误");
            //将info对象序列化为json
            ObjectMapper mapper = new ObjectMapper();
            String json = mapper.writeValueAsString(info);
            response.setContentType("application/json;charset=utf-8");
            response.getWriter().write(json);
            return;
        }
        //1.获取数据
        Map<String, String[]> map = request.getParameterMap();
        //2.封装对象
        User user = new User();
        try {
            BeanUtils.populate(user,map);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
        //3.调用service完成注册
        //UserService service = new UserServiceImpl();
        boolean flag = service.regist(user);
        ResultInfo info = new ResultInfo();
        //4.响应结果
        if(flag){
            //注册成功
            info.setFlag(true);
        }else{
            //注册失败
            info.setFlag(false);
            info.setErrorMsg("注册失败!");
        }
        //将info对象序列化为json
        ObjectMapper mapper = new ObjectMapper();
        String json = mapper.writeValueAsString(info);
        //将json数据写回客户端
        //设置content-type
        response.setContentType("application/json;charset=utf-8");
        response.getWriter().write(json);
    }
    /**
     * 登录功能
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    public void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //1.获取用户名和密码数据
        Map<String, String[]> map = request.getParameterMap();
        //2.封装User对象
        User user = new User();
        try {
            BeanUtils.populate(user,map);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
        //3.调用Service查询
        // UserService service = new UserServiceImpl();
        User u  = service.login(user);
        ResultInfo info = new ResultInfo();
        //4.判断用户对象是否为null
        if(u == null){
            //用户名密码或错误
            info.setFlag(false);
            info.setErrorMsg("用户名密码或错误");
        }
        //5.判断用户是否激活
        if(u != null && !"Y".equals(u.getStatus())){
            //用户尚未激活
            info.setFlag(false);
            info.setErrorMsg("您尚未激活，请激活");
        }
        //6.判断登录成功
        if(u != null && "Y".equals(u.getStatus())){
            request.getSession().setAttribute("user",u);//登录成功标记
            //登录成功
            info.setFlag(true);
        }
        //响应数据
        ObjectMapper mapper = new ObjectMapper();
        response.setContentType("application/json;charset=utf-8");
        mapper.writeValue(response.getOutputStream(),info);
    }
    /**
     * 查询单个对象
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    public void findOne(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //从session中获取登录用户
        Object user = request.getSession().getAttribute("user");
        //将user写回客户端
       /* ObjectMapper mapper = new ObjectMapper();
        response.setContentType("application/json;charset=utf-8");
        mapper.writeValue(response.getOutputStream(),user);*/
        writeValue(user,response);
    }
    /**
     * 退出功能
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    public void exit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //1.销毁session
        request.getSession().invalidate();
        //2.跳转登录页面
        response.sendRedirect(request.getContextPath()+"/login.html");
    }
    /**
     * 激活功能
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    public void active(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //1.获取激活码
        String code = request.getParameter("code");
        if(code != null){
            //2.调用service完成激活
            //UserService service = new UserServiceImpl();
            boolean flag = service.active(code);
            //3.判断标记
            String msg = null;
            if(flag){
                //激活成功
                msg = "激活成功，请<a href='login.html'>登录</a>";
            }else{
                //激活失败
                msg = "激活失败，请联系管理员!";
            }
            response.setContentType("text/html;charset=utf-8");
            response.getWriter().write(msg);
        }
    }
}
                  }

后台dao

接口

public interface UserDao {
    /**
     * 根据用户名查询用户信息
     */
    public User findByUsername(String username);
    /**
     * @param user
     */
    public void save(User user);
    User findByCode(String code);
    void updateStatus(User user);
    User findByUsernameAndPassword(String username, String password);
}

接口的实现类

public class UserDaoImpl implements UserDao {
    private JdbcTemplate template = new JdbcTemplate(JDBCUtils.getDataSource());
    @Override
    public User findByUsername(String username) {
        User user = null;
        try {
            //1.定义sql
            String sql = "select * from tab_user where username = ?";
            //2.执行sql
            user = template.queryForObject(sql, new BeanPropertyRowMapper<User>(User.class), username);
        } catch (Exception e) {
        }
        return user;
    }
    @Override
    public void save(User user) {
        //1.定义sql
        String sql = "insert into tab_user(username,password,name,birthday,sex,telephone,email,status,code) values(?,?,?,?,?,?,?,?,?)";
        //2.执行sql
        template.update(sql,user.getUsername(),
                    user.getPassword(),
                user.getName(),
                user.getBirthday(),
                user.getSex(),
                user.getTelephone(),
                user.getEmail(),
                user.getStatus(),
                user.getCode()
                );
    }
    /**
     * 根据激活码查询用户对象
     * @param code
     * @return
     */
    @Override
    public User findByCode(String code) {
        User user = null;
        try {
            String sql = "select * from tab_user where code = ?";
            user = template.queryForObject(sql,new BeanPropertyRowMapper<User>(User.class),code);
        } catch (DataAccessException e) {
            e.printStackTrace();
        }
        return user;
    }
    /**
     * 修改指定用户激活状态
     * @param user
     */
    @Override
    public void updateStatus(User user) {
        String sql = " update tab_user set status = 'Y' where uid=?";
        template.update(sql,user.getUid());
    }
    /**
     * 根据用户名和密码查询的方法
     * @param username
     * @param password
     * @return
     */
    @Override
    public User findByUsernameAndPassword(String username, String password) {
        User user = null;
        try {
            //1.定义sql
            String sql = "select * from tab_user where username = ? and password = ?";
            //2.执行sql
            user = template.queryForObject(sql, new BeanPropertyRowMapper<User>(User.class), username,password);
        } catch (Exception e) {
        }
        return user;
    }
}

service实现测试

service接口

public interface UserService {
    /**
     * 注册用户
     * @param user
     * @return
     */
    boolean regist(User user);
    boolean active(String code);
    User login(User user);
}

实现类

public class UserServiceImpl implements UserService {
    private UserDao userDao = new UserDaoImpl();
    /**
     * 注册用户
     * @param user
     * @return
     */
    @Override
    public boolean regist(User user) {
        //1.根据用户名查询用户对象
        User u = userDao.findByUsername(user.getUsername());
        //判断u是否为null
        if(u != null){
            //用户名存在，注册失败
            return false;
        }
        //2.保存用户信息
        //2.1设置激活码，唯一字符串
        user.setCode(UuidUtil.getUuid());
        //2.2设置激活状态
        user.setStatus("N");
        userDao.save(user);
        //3.激活邮件发送，邮件正文？
        String content="<a href='http://localhost/travel/user/active?code="+user.getCode()+"'>点击激活【黑马旅游网】</a>";
        MailUtils.sendMail(user.getEmail(),content,"激活邮件");
        return true;
    }
    /**
     * 激活用户
     * @param code
     * @return
     */
    @Override
    public boolean active(String code) {
        //1.根据激活码查询用户对象
        User user = userDao.findByCode(code);
        if(user != null){
            //2.调用dao的修改激活状态的方法
            userDao.updateStatus(user);
            return true;
        }else{
            return false;
        }
    }
    /**
     * 登录方法
     * @param user
     * @return
     */
    @Override
    public User login(User user) {
        return userDao.findByUsernameAndPassword(user.getUsername(),user.getPassword());
    }
}

邮件激活

工具类MailUtils

public final class MailUtils {
    private static final String USER = "****"; // 发件人称号，同邮箱地址
    private static final String PASSWORD = "*****"; // 如果是qq邮箱可以使户端授权码，或者登录密码
    /**
     *
     * @param to 收件人邮箱
     * @param text 邮件正文
     * @param title 标题
     */
    /* 发送验证信息的邮件 */
    public static boolean sendMail(String to, String text, String title){
        try {
            final Properties props = new Properties();
            props.put("mail.smtp.auth", "true");
            props.put("mail.smtp.host", "smtp.qq.com");
            // 发件人的账号
            props.put("mail.user", USER);
            //发件人的密码
            props.put("mail.password", PASSWORD);
            // 构建授权信息，用于进行SMTP进行身份验证
            Authenticator authenticator = new Authenticator() {
                @Override
                protected PasswordAuthentication getPasswordAuthentication() {
                    // 用户名、密码
                    String userName = props.getProperty("mail.user");
                    String password = props.getProperty("mail.password");
                    return new PasswordAuthentication(userName, password);
                }
            };
            // 使用环境属性和授权信息，创建邮件会话
            Session mailSession = Session.getInstance(props, authenticator);
            // 创建邮件消息
            MimeMessage message = new MimeMessage(mailSession);
            // 设置发件人
            String username = props.getProperty("mail.user");
            InternetAddress form = new InternetAddress(username);
            message.setFrom(form);
            // 设置收件人
            InternetAddress toAddress = new InternetAddress(to);
            message.setRecipient(Message.RecipientType.TO, toAddress);
            // 设置邮件标题
            message.setSubject(title);
            // 设置邮件的内容体
            message.setContent(text, "text/html;charset=UTF-8");
            // 发送邮件
            Transport.send(message);
            return true;
        }catch (Exception e){
            e.printStackTrace();
        }
        return false;
    }
    public static void main(String[] args) throws Exception { // 做测试用
        MailUtils.sendMail("****@163.com","你好，这是一封测试邮件，无需回复。","测试邮件");
        System.out.println("发送成功");
    }
}