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深圳大学数据库系统实验 Leasing Luxury Database system 基于PHP,MySQL,Web三件套

本实验要求搭建一个手袋租聘的数据库系统，并实现以下要求：

  1. 创建一个数据库，可以记录客户数据，手袋数据，租聘数据，设计者数据
  2. 用户可以提供自己的邮箱地址，邮寄地址，信用卡号码，来注册租聘网站
  3. 数据库要展示所有课租聘的手袋，已被租聘的手袋用户不能租聘，用户可以在网站上通过填写相关信息来租聘手袋，设计一个存储过程能记录租聘信息
  4. 写一个储存过程，用户可以通过搜索设计师的名字来查询手袋，输入设计师的名字，能列出袋子的名字和它的颜色
  5. 写一个储存过程，计算出每个客户保管包的时间，按最长时间到最短时间进行排序
  6. 写一个储存过程，计算并列出每个客户的消费金额。 这些金额将反映出这个包已经租了多少天
  7. 写一个存储过程，实现手袋表的信息添加
  8. 写一个存储过程，展示客户名下租了未还的手袋
  9. 利用触发器，实现手袋退回并能重新出租，同时打印出租的总时长和总金额
    显示友好的异常输入提示和友好的web交互界面

1.创建一个名为final的数据库，搭建五个数据表

在这里插入图片描述

整体搭建思路和模型如下，记录客户数据，手袋数据，租聘数据，设计者数据：

在这里插入图片描述

同时撰写conn.php文件链接php和数据库系统：

<?php
$hostname = "localhost"; //主机名,可以用IP代替
$database = "final"; //数据库名
$username = "root"; //数据库用户名
$password = ""; //数据库密码
$conn = mysqli_connect($hostname, $username, $password) or trigger_error(mysqli_error($conn), E_USER_ERROR);
mysqli_select_db($conn, $database);
$db = @mysqli_select_db($conn, $database) or die(mysqli_error($conn));

2.搭建用户注册和登录界面：

注册界面，用户输入邮箱，地址，信用卡号，电话，姓名，密码，完成注册：
在这里插入图片描述

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: center;
            border-bottom: 5px solid black;

        }

        .title {
            width: 500px;
            text-align: center;
            margin: auto;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;

            border-spacing: 10px;
            margin: auto;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
        }

        .search {
            margin: auto;
            text-align: center;
        }

        .button {
            background: whitesmoke;
        }

        input {
            background-color: whitesmoke;
            border-color: whitesmoke;
        }
    </style>
</head>

<body>
    <div>
        <div class='back'>
            <div class='title'>
                <p>Add new bag</p>
            </div>
            <div class='neirong'>
                <form class='search' action="login.php" method="post">
                    <table>
                        <tr>
                            <td>Email</td>
                            <td><input type="text" name="email"></td>
                        </tr>
                        <tr>
                            <td>Address</td>
                            <td><input type="text" name="address"></td>
                        </tr>
                        <tr>
                            <td>Credit Card</td>
                            <td><input type="text" name="credit"></td>
                        </tr>
                        <tr>
                            <td>Phone</td>
                            <td><input type="text" name="phone"></td>
                        </tr>
                        <tr>
                            <td>Last Name</td>
                            <td><input type="text" name="ln"></td>
                        </tr>
                        <tr>
                            <td>First Name</td>
                            <td><input type="text" name="fn"></td>
                        </tr>
                        <tr>
                            <td>Password</td>
                            <td><input type="text" name="password"></td>
                        </tr>
                        <tr>
                            <td colspan='2' style='text-align:center;'><input class='button' type="submit" value="login" name="submit"></td>
                        </tr>

                    </table>
                </form>
            </div>
        </div>
</body>
</html>

登录界面，用户可以通过邮箱和密码，登录系统

<?php
error_reporting(0);
$email = $_POST['email'];
if ($email) {
    include("conn.php");
    mysqli_query($conn, "set names gb2312");
    error_reporting(0);
    $email = $_POST['email'];
    $address = $_POST['address'];
    $credit = $_POST['credit'];
    $phone = $_POST['phone'];
    $fn = $_POST['fn'];
    $ln = $_POST['ln'];

    $sql = "select cid from customer";
    $res = mysqli_query($conn, $sql);
    $rows = mysqli_num_rows($res);
    $cid = 101 + $rows;

    $sql = "insert into customer(`cid`, `phone`, `address`, `email`, `card`, `first_name`, `last_name`) VALUES ($cid,$phone,'$address','$email',$credit,'$ln','$fn')";
    $res = mysqli_query($conn, $sql);
    if ($res)
        echo "<script language=javascript>window.alert('register sccessfully,please login')</script>";
    else
        echo "<script language=javascript>window.alert('register fail,please return');history.go(-1)</script>";
}
?>

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: center;
            border-bottom: 5px solid black;

        }

        .title {
            width: 500px;
            text-align: center;
            margin: auto;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;

            border-spacing: 10px;
            margin: auto;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
        }

        .search {
            margin: auto;
            text-align: center;
        }

        .button {
            background: whitesmoke;
        }

        input {
            background-color: whitesmoke;
            border-color: whitesmoke;
        }
    </style>
</head>

<body>
    <div>
        <div class='back'>
            <div class='title'>
                <p>Login</p>
            </div>
            <div class='neirong'>
                <form class='search' action="show.php" method="post">
                    <table>
                        <tr>
                            <td>Email</td>
                            <td><input type="text" name="email" placeholder="[email protected]"></td>
                        </tr>
                        <tr>
                            <td>Password</td>
                            <td><input type="password" name="bcolor"></td>
                        </tr>
                        <tr>
                            <td colspan='2' style='text-align:center;'><input class='button' type="submit" value="login" name="submit"></td>
                        </tr>
                    </table>
            </div>
        </div>
</body>
</html>

3.数据库要展示所有课租聘的手袋，已被租聘的手袋用户不能租聘，用户可以在网站上通过填写相关信息来租聘手袋，设计两个存储过程能记录租聘信息和实现手袋状态的更新：

设计一个存储过程，完成租聘信息在数据表rental的录入

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `add_rental`(IN `id` INT(32), IN `customerId` INT(32), IN `bagId` INT(32), IN `optionalInsurance` TINYINT(1), IN `daysOfRent` INT(10))
insert into rental(rid,cid, bid, date_rented, date_returned, optional_insurance) 
    values (id,customerId, bagId, curdate(), curdate() + daysOfRent, optionalInsurance)$$
DELIMITER ;

再设计一个存储过程，更新手袋状态为不可租聘状态

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `update_rentals`(bagId int(32))
update bag set already_rented = 1 where bid = bagId$$
DELIMITER ;

界面展示了所有可以租聘的手袋，用户可以通过点击Rent进入租聘界面，已被租聘的手袋会显示“Can’t Rental”而无法租聘：

在这里插入图片描述

<?php
error_reporting(0);
$email = $_POST['email'];
if ($email) {
    include("conn.php");
    mysqli_query($conn, "set names gb2312");
    $sql = "SELECT cid FROM customer WHERE email='$email';";
    $res = mysqli_query($conn, $sql);
    $data = mysqli_fetch_array($res);
    session_start();
    $_SESSION['cid'] = $data[0];
}
?>
<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: left;
            border-left: 5px solid black;
            padding-left: 10px;
        }

        .title {
            width: 500px;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;
            width: 1000px;
            border-top: 10px solid black;
            border-spacing: 10px;
            margin-left: 10px;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
        }

        .search {

            margin-left: 10px;
            ;
        }

        .button {
            background: whitesmoke;
        }

        .neirong {
            margin-bottom: 40px;
        }

        .neirong p {
            margin-left: 10px;
        }

        aside.NavSidebar {
            padding: 5px 15px 5px 15px;
            width: 203px;
            background-color: whitesmoke;
            font-size: small;
            float: left;
            margin-right: 10px;
        }

        aside.NavSidebar h2 {
            color: black;
            border-bottom: thin black solid;
            margin-bottom: 10px;
            margin-top: 20px;
        }

        aside.NavSidebar ul {
            padding-left: 15px;
        }

        aside.NavSidebar li {
            padding-bottom: 8px;
        }

        .main {
            float: left;
        }

        .bbb {
            background-color: whitesmoke;
        }

        .ccc {
            text-align: center;
        }
    </style>
</head>

<body>
    <script>
        window.history.replaceState(null, null, window.location.href);
    </script>
    <aside class="NavSidebar">
        <nav>
            <h2>LL Company</h2>
            <ul>
                <li><a href="/final/Show">Rent</a> </li>
                <li><a href="/final/add">Add</a> </li>
                <li><a href="/final/bill">Bill</a> </li>
                <li><a href="/final/bag_by_designer">Search</a></li>
                <li><a href="/final/best_customers">Customers</a></li>
                <li><a href="/final/mybag">My bag</a></li>
            </ul>
        </nav>
    </aside>
    <div class='main'>
        <div class='back'>
            <div class='title'>
                <p>Bag List</p>
            </div>
            <div class='neirong'>

                <?php
                include("conn.php");
                mysqli_query($conn, "set names gb2312");

                $sql = "select bid,btype,color,already_rented from bag";
                $res = mysqli_query($conn, $sql);
                $rows = mysqli_num_rows($res);

                if ($rows) {
                    echo '</div>';
                    $field = mysqli_num_fields($res);

                    echo '<table class="table">';
                    echo '<thead><tr>';
                    echo '<th>Bag ID</th><th>Name</th><th>Color</th><th class="ccc">Condition</th>';
                    echo '</tr></thead>';

                    echo '<tbody>';

                    for ($i = 1; $i <= $rows; $i++) {

                        $data = mysqli_fetch_array($res);
                        for ($j = 0; $j < $field - 1; $j++) {
                            echo "<td>$data[$j]</td>";
                        }
                        if ($data[$field - 1] == 0) {
                            echo "<td class='ccc'><form action='rent.php' method='post'><input type='hidden' name='bid' value='$data[0]'><input class='bbb' type ='submit' name='submit' value='Rent'></form></td>";
                            echo '</tr>';
                        } else {
                            echo "<td class='ccc'>Can't Rental</td>";
                            echo '</tr>';
                        }
                    }
                    echo '</tbody></table>';
                }

                ?>
            </div>
        </div>
</body>

</html>

用户可以选择是否购买保险服务和租聘的天数：

在这里插入图片描述

租聘成功会弹出提示框,点击确定会自动返回所有手袋的页面：

[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-v6555E5E-1672286298674)(C:\Users\Nathan\AppData\Roaming\Typora\typora-user-images\image-20221228115836371.png)]

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: center;
            border-bottom: 5px solid black;

        }

        .title {
            width: 500px;
            text-align: center;
            margin: auto;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;

            border-spacing: 10px;
            margin: auto;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
            margin: 100px;
        }

        .search {
            margin: auto;
            text-align: center;
        }

        .button {
            background: whitesmoke;
        }

        input {
            background-color: whitesmoke;
            border-color: whitesmoke;
        }

        select {
            width: 170px;
            background-color: whitesmoke;
        }
    </style>
</head>

<?php
error_reporting(0);
$bid = $_POST['bid'];
?>


<body>
    <div class='back'>
        <div class='title'>
            <p>Rent Bag</p>
        </div>
        <div class='neirong'>
            <form class='search' action="rent.php" method="post">
                <input type="hidden" name="bid" value="<?php echo $bid; ?>" />
                <table>
                    <tr>
                        <td>Do you need insurance?</td>
                        <td>
                            <select name="insurance">
                                <option value="1">Yes</option>
                                <option value="0">No</option>
                            </select>
                        </td>
                    </tr>
                    <tr>
                        <td>Rent date</td>
                        <td><input type="text" name="day"></td>
                    </tr>
                    <tr>
                        <td colspan='2' style='text-align:center;'><input class='button' type="submit" value="Rent" name="submit1"></td>
                    </tr>

                </table>
            </form>

            <?php

            include("conn.php");
            mysqli_query($conn, "set names gb2312");
            error_reporting(0);
            session_start();
            $cid = $_SESSION['cid'];
            $bid = $_POST['bid'];
            $insurance = $_POST['insurance'];
            $day = $_POST['day'];

            $sql = "select rid from rental";
            $res = mysqli_query($conn, $sql);
            $rows = mysqli_num_rows($res);
            $id = 1 + $rows;

            if (isset($_POST['submit1'])) {
                $sql = "call add_rental($id,$cid,$bid,$insurance,$day)";
                $res = mysqli_query($conn, $sql);

                mysqli_close($conn);
                include("conn.php");
                mysqli_query($conn, "set names gb2312");
                $sql = "call update_rentals($bid)";
                $res = mysqli_query($conn, $sql);

                if ($res)
                    echo "<script language=javascript>window.alert('rent sccessfully,please return');history.go(-2);window.history.replaceState(null, null, window.location.href);</script>";
                else
                    echo "<script language=javascript>window.alert('rent fail,please return');history.go(-2);window.history.replaceState(null, null, window.location.href);</script>";
            }

            ?>

        </div>
</body>

</html>

4.用户输入设计师的名字，能列出袋子的名字和它的颜色：

设计一个存储过程：

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `bag_by_designer`(in designer varchar(30))
select 
        btype as 'Name', 
        color as 'Color', 
        d.name as 'Manufacturer' 
    from bag as b
    left join designer as d
    on b.did = d.did
    where d.name = designer$$
DELIMITER ;

用户输入设计师名字可以实现查询该设计师名下的所有手袋：

在这里插入图片描述

以及友好的错误输入提示
在这里插入图片描述

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: left;
            border-left: 5px solid black;
            padding-left: 10px;
        }

        .title {
            width: 500px;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;
            width: 1000px;
            border-top: 10px solid black;
            border-spacing: 10px;
            margin-left: 10px;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
        }

        .main {
            float: left;
        }

        .search {

            margin-left: 10px;
            ;
        }

        .button {
            background: whitesmoke;
        }

        .neirong {
            margin-bottom: 40px;
        }

        .neirong p {
            margin-left: 10px;
        }

        aside.NavSidebar {
            padding: 5px 15px 5px 15px;
            width: 203px;
            background-color: whitesmoke;
            font-size: small;
            float: left;
            margin-right: 10px;
        }

        aside.NavSidebar h2 {
            color: black;
            border-bottom: thin black solid;
            margin-bottom: 10px;
            margin-top: 20px;
        }

        aside.NavSidebar ul {
            padding-left: 15px;
        }

        aside.NavSidebar li {
            padding-bottom: 8px;
        }
    </style>
</head>

<body>
    <aside class="NavSidebar">
        <nav>
            <h2>LL Company</h2>
            <ul>
                <li><a href="/final/Show">Rent</a> </li>
                <li><a href="/final/add">Add</a> </li>
                <li><a href="/final/bill">Bill</a> </li>
                <li><a href="/final/bag_by_designer">Search</a></li>
                <li><a href="/final/best_customers">Customers</a> </li>
                <li><a href="/final/mybag">My bag</a></li>
            </ul>
        </nav>
    </aside>
    <div class='main'>
        <div class='back'>
            <div class='title'>
                <p>Bag by Designer</p>
            </div>
            <div class='neirong'>
                <form class='search' action="bag_by_designer.php" method="post">
                    <input type="text" name="Dname" placeholder="Please enter Designer's id">
                    <input class='button' type="submit" value="Submit" name="Submit">
                </form>

                <?php
                include("conn.php");
                mysqli_query($conn, "set names gb2312");
                error_reporting(0);
                $Dname = $_POST['Dname'];
                $sql = "call bag_by_designer('$Dname')";
                $res = mysqli_query($conn, $sql);
                $rows = mysqli_num_rows($res);

                if (isset($_POST['Submit'])) {
                    if ($rows) {
                        echo '</div>';
                        $field = mysqli_num_fields($res);

                        echo '<table class="table">';
                        echo '<thead><tr>';
                        echo '<th>#</th>';
                        for ($j = 0; $j < $field; $j++) {
                            $field_info = mysqli_fetch_field_direct($res, $j);
                            echo "<th>$field_info->name</th>";
                        }
                        echo '</tr></thead>';

                        echo '<tbody>';

                        for ($i = 1; $i <= $rows; $i++) {
                            echo "<tr><td>$i</td>";
                            $data = mysqli_fetch_array($res);
                            for ($j = 0; $j < $field; $j++) {
                                echo "<td>$data[$j]</td>";
                            }
                            echo '</tr>';
                        }
                        echo '</tbody></table>';
                    } else {
                        echo "<p>Designer $Dname not exist</p></div>";
                    }
                }
                ?>
            </div>
        </div>
</body>

</html>

5.计算出每个客户保管包的时间，按最长时间到最短时间进行排序

设计一个存储过程

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `best_customers`()
select 
        last_name as 'Last Name',
        first_name as 'First Name',
        address as 'Address',
        phone as 'Telephone',
        ifnull(sum(datediff( date_returned, date_rented)), 0) 
            as 'Total Length of Rentals' 
    from customer as c 
    left join rental as r 
    on c.cid = r.cid 
    group by c.cid 
    order by `Total Length of Rentals` desc$$
DELIMITER ;

点击customer标签，web会自动列出顾客的消费金额

在这里插入图片描述

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: left;
            border-left: 5px solid black;
            padding-left: 10px;
        }

        .title {
            width: 500px;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;
            width: 1000px;
            border-top: 10px solid black;
            border-spacing: 10px;
            margin-left: 10px;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
        }

        .main {
            float: left;
        }

        .search {

            margin-left: 10px;
            ;
        }

        .button {
            background: whitesmoke;
        }

        .neirong {
            margin-bottom: 40px;
        }

        .neirong p {
            margin-left: 10px;
        }

        aside.NavSidebar {
            padding: 5px 15px 5px 15px;
            width: 203px;
            background-color: whitesmoke;
            font-size: small;
            float: left;
            margin-right: 10px;
        }

        aside.NavSidebar h2 {
            color: black;
            border-bottom: thin black solid;
            margin-bottom: 10px;
            margin-top: 20px;
        }

        aside.NavSidebar ul {
            padding-left: 15px;
        }

        aside.NavSidebar li {
            padding-bottom: 8px;
        }
    </style>
</head>

<body>
    <aside class="NavSidebar">
        <nav>
            <h2>LL Company</h2>
            <ul>
                <li><a href="/final/Show">Rent</a> </li>
                <li><a href="/final/add">Add</a> </li>
                <li><a href="/final/bill">Bill</a> </li>
                <li><a href="/final/bag_by_designer">Search</a></li>
                <li><a href="/final/best_customers">Customers</a> </li>
                <li><a href="/final/mybag">My bag</a></li>
            </ul>
        </nav>
    </aside>
    <div class='main'>
        <div class='back'>
            <div class='title'>
                <p>Best Customers</p>
            </div>

            <?php
            include("conn.php");
            mysqli_query($conn, "set names gb2312");

            $sql = "call best_customers";
            $res = mysqli_query($conn, $sql);
            $rows = mysqli_num_rows($res);

            if ($rows) {
                $field = mysqli_num_fields($res);

                echo '<table class="table">';
                echo '<thead><tr>';
                echo '<th>#</th>';
                for ($j = 0; $j < $field; $j++) {
                    $field_info = mysqli_fetch_field_direct($res, $j);
                    echo "<th>$field_info->name</th>";
                }
                echo '</tr></thead>';

                echo '<tbody>';

                for ($i = 1; $i <= $rows; $i++) {
                    echo "<tr><td>$i</td>";
                    $data = mysqli_fetch_array($res);
                    for ($j = 0; $j < $field; $j++) {
                        echo "<td>$data[$j]</td>";
                    }
                    echo '</tr>';
                }
                echo '</tbody></table>';
            }

            ?>
        </div>
    </div>
</body>

</html>

6.计算并列出每个客户的消费金额。 这些金额将反映出这个包已经租了多少天

设计一个存储过程，统计该客户租借的所有手袋：

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `report_customer_amount`(IN `customer_id` INT(32))
select 
        c.last_name as 'Last Name',
        c.first_name as 'First Name',
        d.name as 'Manufacturer',
        b.btype as 'Name',
        datediff( r.date_returned, r.date_rented) as 'totalDays',
        (d.price + r.optional_insurance) 
            * datediff( r.date_returned, r.date_rented) as 'Cost'
    from rental as r 
    left join customer as c 
    on r.cid = c.cid 
    left join bag as b 
    on r.bid = b.bid 
    left join designer as d 
    on d.did = b.did 
    where r.cid = customer_id
    order by Cost desc$$
DELIMITER ;

设计第二个存储过程，统计该客户总花费

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `report_customer_totalCost`(IN `customer_id` INT(32))
select 
        c.last_name as 'Last Name',
        c.first_name as 'First Name',
        sum((d.price + r.optional_insurance) 
            * datediff( r.date_returned, r.date_rented)) as totalCost
    from rental as r 
    left join customer as c 
    on r.cid = c.cid 
    left join bag as b 
    on r.bid = b.bid 
    left join designer as d 
    on d.did = b.did 
    where r.cid = customer_id$$
DELIMITER ;

通过输入客户id号，可以实现账单的查询：

在这里插入图片描述

以及友好的错误输入提示：
在这里插入图片描述

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: left;
            border-left: 5px solid black;
            padding-left: 10px;
        }

        .main {
            float: left;
        }

        .title {
            width: 500px;

        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;
            width: 1000px;
            border-top: 10px solid black;
            border-spacing: 10px;
            margin-left: 10px;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;

        }

        .search {

            margin-left: 10px;
            ;
        }

        .button {
            background: whitesmoke;
        }

        .neirong {
            margin-bottom: 40px;
        }

        .neirong p {
            margin-left: 10px;
        }

        aside.NavSidebar {
            padding: 5px 15px 5px 15px;
            width: 203px;
            background-color: whitesmoke;
            font-size: small;
            float: left;
            margin-right: 10px;
        }

        aside.NavSidebar h2 {
            color: black;
            border-bottom: thin black solid;
            margin-bottom: 10px;
            margin-top: 20px;
        }

        aside.NavSidebar ul {
            padding-left: 15px;
        }

        aside.NavSidebar li {
            padding-bottom: 8px;
        }
    </style>
</head>

<body>
    <aside class="NavSidebar">
        <nav>
            <h2>LL Company</h2>
            <ul>
                <li><a href="/final/Show">Rent</a> </li>
                <li><a href="/final/add">Add</a> </li>
                <li><a href="/final/bill">Bill</a> </li>
                <li><a href="/final/bag_by_designer">Search</a></li>
                <li><a href="/final/best_customers">Customers</a> </li>
                <li><a href="/final/mybag">My bag</a></li>
            </ul>
        </nav>
    </aside>
    <div class='main'>
        <div class='back'>
            <div class='title'>
                <p>Rental Cost Per Customer</p>
            </div>
            <div class='neirong'>
                <form class='search' action="bill.php" method="post">
                    <input type="text" name="Dname" placeholder="Please enter customer's id">
                    <input class='button' type="submit" value="Submit" name="Submit">
                </form>

                <?php
                include("conn.php");
                mysqli_query($conn, "set names gb2312");
                error_reporting(0);
                $Dname = $_POST['Dname'];
                $sql = "call report_customer_amount($Dname)";
                $res = mysqli_query($conn, $sql);
                $rows = mysqli_num_rows($res);

                if (isset($_POST['Submit'])) {
                    if ($rows) {
                        echo "<p>Customer whose id is $Dname 's bill</p></div>";
                        $field = mysqli_num_fields($res);

                        echo '<table class="table">';
                        echo '<thead><tr>';
                        echo '<th>#</th>';
                        for ($j = 0; $j < $field; $j++) {
                            $field_info = mysqli_fetch_field_direct($res, $j);
                            echo "<th>$field_info->name</th>";
                        }
                        echo '</tr></thead>';

                        echo '<tbody>';

                        for ($i = 1; $i <= $rows; $i++) {
                            echo "<tr><td>$i</td>";
                            $data = mysqli_fetch_array($res);
                            for ($j = 0; $j < $field; $j++) {
                                echo "<td>$data[$j]</td>";
                            }
                            echo '</tr>';
                        }

                        // mysqli_free_result($res);
                        mysqli_close($conn);
                        include("conn.php");
                        mysqli_query($conn, "set names gb2312");
                        $sql = "call report_customer_totalCost($Dname)";
                        $res = mysqli_query($conn, $sql);
                        $data = mysqli_fetch_array($res);
                        echo '<tr><td></td><td></td><td></td><td></td><td></td><td>Total Bill</td>';
                        echo "<td>$$data[2]</td>";
                        echo '</tr></tbody></table>';
                    } else {
                        echo "<p>Customer whose id is $Dname not exist</p></div>";
                    }
                }
                ?>
            </div>
        </div>
</body>

</html>

7.写一个存储过程，实现手袋表的信息添加

设计一个存储过程，实现新设计者的添加

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `add_designer`(id int(32),bagDesigner varchar(30),price_per_date double(32,2))
insert into designer( did,name,price) 
    values (id, bagDesigner,price_per_date)$$
DELIMITER ;

设计一个存储过程，实现新手袋的添加

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `add_bag`(id int(32),bagType varchar(30), bagColor varchar(10), bagDesigner varchar(30))
insert into bag( bid,btype, color, did) 
    values (id, bagType, bagColor, (select did 
                                from designer
                                where name = bagDesigner))$$
DELIMITER ;

管理者可以通过输入手袋类型，手袋颜色，设计者名字，每天价格，从而来添加新的手袋：
在这里插入图片描述

php会自动判别设计者是否为新的设计者，从而确定是否需要在设计者表中插入新的数据

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: center;
            border-bottom: 5px solid black;

        }

        .title {
            width: 500px;
            text-align: center;
            margin: auto;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;

            border-spacing: 10px;
            margin: auto;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
        }

        .search {
            margin: auto;
            text-align: center;
        }

        .button {
            background: whitesmoke;
        }

        input {
            background-color: whitesmoke;
            border-color: whitesmoke;
        }

        aside.NavSidebar {
            padding: 5px 15px 5px 15px;
            width: 203px;
            background-color: whitesmoke;
            font-size: small;
            float: left;
            margin-right: 10px;
        }

        aside.NavSidebar h2 {
            color: black;
            border-bottom: thin black solid;
            margin-bottom: 10px;
            margin-top: 20px;
        }

        aside.NavSidebar ul {
            padding-left: 15px;
        }

        aside.NavSidebar li {
            padding-bottom: 8px;
        }

        .main {
            float: left;
        }
    </style>
</head>

<body>
    <aside class="NavSidebar">
        <nav>
            <h2>LL Company</h2>
            <ul>
                <li><a href="/final/Show">Rent</a> </li>
                <li><a href="/final/add">Add</a> </li>
                <li><a href="/final/bill">Bill</a> </li>
                <li><a href="/final/bag_by_designer">Search</a></li>
                <li><a href="/final/best_customers">Customers</a> </li>
                <li><a href="/final/mybag">My bag</a></li>
            </ul>
        </nav>
    </aside>
    <div class='main'>
        <div class='back'>
            <div class='title'>
                <p>Add new bag</p>
            </div>
            <div class='neirong'>
                <form class='search' action="add.php" method="post">
                    <table>
                        <tr>
                            <td>Bag type</td>
                            <td><input type="text" name="btype" placeholder="Big"></td>
                        </tr>
                        <tr>
                            <td>Bag Color</td>
                            <td><input type="text" name="bcolor" placeholder="Red"></td>
                        </tr>
                        <tr>
                            <td>Designer Name</td>
                            <td><input type="text" name="dname" placeholder="Prada"></td>
                        </tr>
                        <tr>
                            <td>Price Per Day</td>
                            <td><input type="text" name="price" placeholder="3.00"></td>
                        </tr>
                        <tr>
                            <td colspan='2' style='text-align:center;'><input class='button' type="submit" value="Add" name="submit"></td>
                        </tr>

                    </table>
                </form>

                <?php
                include("conn.php");
                mysqli_query($conn, "set names gb2312");
                error_reporting(0);
                $btype = $_POST['btype'];
                $bcolor = $_POST['bcolor'];
                $dname = $_POST['dname'];
                $price = $_POST['price'];

                $sql = "select name from designer";
                $res = mysqli_query($conn, $sql);
                $rows = mysqli_num_rows($res);
                for ($i = 0; $i < $rows; $i++) {
                    $data = mysqli_fetch_array($res);
                    if ($data[0] == $dname) {
                        $have = 1;
                        break;
                    } else
                        $have = 0;
                }

                $sql = "select bid from bag";
                $res = mysqli_query($conn, $sql);
                $rows = mysqli_num_rows($res);
                $bid = 101 + $rows;

                $sql = "select did from designer";
                $res = mysqli_query($conn, $sql);
                $rows = mysqli_num_rows($res);
                $did = 101 + $rows;


                if (isset($_POST['submit'])) {
                    if ($have) {
                        $sql = "call add_bag($bid,'$btype','$bcolor','$dname')";
                        $res = mysqli_query($conn, $sql);
                        if ($res)
                            echo "<script language=javascript>window.alert('add sccessfully,please return');history.back(1);</script>";
                        else
                            echo "<script language=javascript>window.alert('add fail,please return');history.back(1);</script>";
                    } else {
                        $sql = "call add_designer($did,'$dname',$price)";
                        $res = mysqli_query($conn, $sql);
                        mysqli_close($conn);
                        include("conn.php");
                        mysqli_query($conn, "set names gb2312");
                        $sql = "call add_bag($bid,'$btype','$bcolor','$dname')";
                        $res = mysqli_query($conn, $sql);
                        if ($res)
                            echo "<script language=javascript>window.alert('add sccessfully,please return');history.back(1);</script>";
                        else
                            echo "<script language=javascript>window.alert('add fail,please return');history.back(1);</script>";
                    }
                }
                ?>
            </div>
        </div>
</body>

</html>

8.写一个存储过程，展示客户名下租了未还的手袋

设计一个存储过程，罗列名下借的手袋

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `mybag`(IN `id` INT(32))
select b.bid,b.btype,b.color,d.name
from rental as r LEFT JOIN bag as b on b.bid=r.bid
LEFT JOIN designer as d on b.did=d.did
where cid=id and already_rented=1$$
DELIMITER ;

在这里插入图片描述

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: left;
            border-left: 5px solid black;
            padding-left: 10px;
        }

        .title {
            width: 500px;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;
            width: 1000px;
            border-top: 10px solid black;
            border-spacing: 10px;
            margin-left: 10px;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
        }

        .search {

            margin-left: 10px;
            ;
        }

        .button {
            background: whitesmoke;
        }

        .neirong {
            margin-bottom: 40px;
        }

        .neirong p {
            margin-left: 10px;
        }

        aside.NavSidebar {
            padding: 5px 15px 5px 15px;
            width: 203px;
            background-color: whitesmoke;
            font-size: small;
            float: left;
            margin-right: 10px;
        }

        aside.NavSidebar h2 {
            color: black;
            border-bottom: thin black solid;
            margin-bottom: 10px;
            margin-top: 20px;
        }

        aside.NavSidebar ul {
            padding-left: 15px;
        }

        aside.NavSidebar li {
            padding-bottom: 8px;
        }

        .main {
            float: left;
        }

        .bbb {
            background-color: whitesmoke;
        }

        .ccc {
            text-align: center;
        }
    </style>
</head>

<body>
    <aside class="NavSidebar">
        <nav>
            <h2>LL Company</h2>
            <ul>
                <li><a href="/final/Show">Rent</a> </li>
                <li><a href="/final/add">Add</a> </li>
                <li><a href="/final/bill">Bill</a> </li>
                <li><a href="/final/bag_by_designer">Search</a></li>
                <li><a href="/final/best_customers">Customers</a> </li>
                <li><a href="/final/mybag">My bag</a></li>
            </ul>
        </nav>
    </aside>
    <div class='main'>
        <div class='back'>
            <div class='title'>
                <p>My bag</p>
            </div>
            <div class='neirong'>

                <?php

                include("conn.php");
                mysqli_query($conn, "set names gb2312");
                error_reporting(0);
                session_start();
                $cid = $_SESSION['cid'];
                $sql = "call mybag($cid);";
                $res = mysqli_query($conn, $sql);
                $rows = mysqli_num_rows($res);

                if ($rows) {
                    echo '</div>';
                    $field = mysqli_num_fields($res);

                    echo '<table class="table">';
                    echo '<thead><tr>';
                    echo '<th>Bag ID</th><th>Name</th><th>Color</th><th>Name</th><th class="ccc">Operation</th>';
                    echo '</tr></thead>';

                    echo '<tbody>';

                    for ($i = 1; $i <= $rows; $i++) {
                        $data = mysqli_fetch_array($res);
                        for ($j = 0; $j < $field; $j++) {
                            echo "<td>$data[$j]</td>";
                        }
                        echo "<td class='ccc'>
            <form action='return.php' method='post'>
            <input type='hidden' name='bid' value='$data[0]'>
            <input type='hidden' name='cid' value='$cid'>
            <input class='bbb' type ='submit' name='submit' value='Return'></form>
            </td></tr>";
                    }
                    echo '</tbody></table>';
                } else {
                    echo "<p>No bag was rented</p></div>";
                }
                ?>
            </div>
        </div>
</body>

</html>

9.利用触发器，实现手袋退回并能重新出租，同时打印出租的总时长和总金额

设计一个触发器，当手袋状态被更新时触。

CREATE TRIGGER `returnbag` AFTER UPDATE ON `rental`
 FOR EACH ROW BEGIN
declare pricePerday double(10,2);
set @totalDays = 0;
    set @bill = 0.00;
    if new.date_returned then 
        select 
            price into pricePerday 
            from bag as b, designer d
            where b.bid = new.bid
            and b.did = d.did;
        select 
            datediff(new.date_returned, new.date_rented) into @totalDays;
        select 
            (pricePerday + new.optional_insurance) * @totalDays into @bill;
    end if;
    update bag set already_rented = false where bid = new.bid;
    INSERT INTO money(`cid`, `bid`, `totalday`, `bill`) VALUES (new.cid,new.bid,@totalDays,@bill);
End

在前端页面打印出租的总时长和总金额

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>主页</title>
    <style>
        body {
            background-color: whitesmoke;
        }

        .title p {
            font-size: 30px;
            background-color: whitesmoke;
            text-transform: capitalize;
            text-align: left;
            border-left: 5px solid black;
            padding-left: 10px;
        }

        .title {
            width: 500px;
        }

        .firstrow {
            text-transform: capitalize;
        }

        a:link {
            color: blue;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        a:visited {
            color: black;
            font-size: 15px;
            text-transform: capitalize;
            text-decoration: none;
        }

        table {
            text-align: left;

            background-color: whitesmoke;
            border-radius: 5px;
            width: 1000px;
            border-top: 10px solid black;
            border-spacing: 10px;
            margin-left: 10px;
        }

        td,
        th {
            min-width: 100px;
            border-bottom: 1px solid gray;
            margin-left: 10px;
        }

        .insert {
            text-align: center;
            background-color: black;
        }

        .back {
            background-color: whitesmoke;
        }

        .search {

            margin-left: 10px;
            ;
        }

        .button {
            background: whitesmoke;
        }

        .neirong {
            margin-bottom: 40px;
        }

        .neirong p {
            margin-left: 10px;
        }

        aside.NavSidebar {
            padding: 5px 15px 5px 15px;
            width: 203px;
            background-color: whitesmoke;
            font-size: small;
            float: left;
            margin-right: 10px;
        }

        aside.NavSidebar h2 {
            color: black;
            border-bottom: thin black solid;
            margin-bottom: 10px;
            margin-top: 20px;
        }

        aside.NavSidebar ul {
            padding-left: 15px;
        }

        aside.NavSidebar li {
            padding-bottom: 8px;
        }

        .main {
            float: left;
        }

        .bbb {
            background-color: whitesmoke;
        }

        .ccc {
            text-align: center;
        }
    </style>
</head>

<body>
    <aside class="NavSidebar">
        <nav>
            <h2>LL Company</h2>
            <ul>
                <li><a href="/final/Show">Rent</a> </li>
                <li><a href="/final/add">Add</a> </li>
                <li><a href="/final/bill">Bill</a> </li>
                <li><a href="/final/bag_by_designer">Search</a></li>
                <li><a href="/final/best_customers">Customers</a> </li>
                <li><a href="/final/best_customers">My bag</a></li>
            </ul>
        </nav>
    </aside>
    <div class='main'>
        <div class='back'>
            <div class='title'>
                <p>My bag</p>
            </div>
            <div class='neirong'>

                <?php
                include("conn.php");
                mysqli_query($conn, "set names gb2312");
                error_reporting(0);
                $bid = $_POST['bid'];
                $cid = $_POST['cid'];

                $sql = "update rental set date_rented=curdate() where cid=$cid and bid=$bid";
                $res = mysqli_query($conn, $sql);

                $sql = "select bid,totalday,bill FROM money LIMIT 1";
                $res = mysqli_query($conn, $sql);
                $data = mysqli_fetch_array($res);
                echo "<p>The bag id: $data[0], total days you rent it : $data[1], the bill you should pay : $$data[2].</p>";

                $sql = "delete from money";
                $res = mysqli_query($conn, $sql);
                ?>
            </div>
        </div>
</body>

</html>

Sidebar h2 {
color: black;
border-bottom: thin black solid;
margin-bottom: 10px;
margin-top: 20px;
}

    aside.NavSidebar ul {
        padding-left: 15px;
    }

    aside.NavSidebar li {
        padding-bottom: 8px;
    }

    .main {
        float: left;
    }

    .bbb {
        background-color: whitesmoke;
    }

    .ccc {
        text-align: center;
    }
</style>

My bag

            <?php
            include("conn.php");
            mysqli_query($conn, "set names gb2312");
            error_reporting(0);
            $bid = $_POST['bid'];
            $cid = $_POST['cid'];

            $sql = "update rental set date_rented=curdate() where cid=$cid and bid=$bid";
            $res = mysqli_query($conn, $sql);

            $sql = "select bid,totalday,bill FROM money LIMIT 1";
            $res = mysqli_query($conn, $sql);
            $data = mysqli_fetch_array($res);
            echo "<p>The bag id: $data[0], total days you rent it : $data[1], the bill you should pay : $$data[2].</p>";

            $sql = "delete from money";
            $res = mysqli_query($conn, $sql);
            ?>
        </div>
    </div>
```

悦读

道可道，非常道；名可名，非常名。 无名，天地之始，有名，万物之母。 故常无欲，以观其妙，常有欲，以观其徼。 此两者，同出而异名，同谓之玄，玄之又玄，众妙之门。

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