一：代码设计

1.index.php

该页面用于显示管理员的登录和物品的库存。并可以进行订货。

<!--html登录界面-->
<meta http-equiv="Content-Type" content="text/html; charset=utf8" />
<form action="login.php" method="post"><fieldset><legend>用户登录</legend><ul><li><label>账 户:</label><input type="text" name="username"></li><li><label>密 码:</label><input type="password" name="password"><li><label> </label><input type="submit" name="login" value="登录"></li></ul></fieldset></form>
<!-- php清单显示 -->
<?php
$link = mysqli_connect( 'localhost' , 'root', '' , 'test' );
if (!$link)
{  printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error()); exit;
}
else
{ echo'数据库连接成功';}mysqli_query($link,'set names utf8');    //解决中文乱码的问题
echo '
<fieldset>
<legend>数据清单</legend>';
if ($result = mysqli_query($link, 'SELECT *  FROM woods ')) {while( $row = mysqli_fetch_assoc($result) ){   ?><ul>
<li>
<form action="request.php" method="post">
<input name="name" readonly="readonly"  value="<?php echo "{$row['name']}"; ?>"><?php echo '  :  ';?>
<input name="num" readonly="readonly" value="<?php echo "{$row['num']}"; ?>">
<input type="submit" name="request" value="请求">
</form>
</li>
</ul><?php}
}
?>

2.login.php

用于对管理员的登录进行验证

<?php header('Content-type:text/html; charset=utf-8');if (isset($_POST['login'])) {# 接收用户的登录信息$username = trim($_POST['username']);$password = trim($_POST['password']);if (($username == '') || ($password == '')) {// 若为空,视为未填写,提示错误,并3秒后返回登录界面header('refresh:3; url=login.html');echo "用户名或密码不能为空,系统将在3秒后跳转到登录界面,请重新填写登录信息!";exit;} $link = mysqli_connect( 'localhost' , 'root', '' , 'test' );   if (!$link) {  printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error()); exit; }else{ }mysqli_query($link,'set names utf8'); if ($result = mysqli_query($link, 'SELECT * FROM user ')) {while( $row = mysqli_fetch_assoc($result) ){if( ($username == $row['user'] )  || ($password == $row['passwd'] ) ){header('refresh:0;url=main.php');exit();}else{echo "用户名或密码错误,系统将在3秒后跳转到登录界面,请重新填写登录信息!";header('refresh:3; url=index.php');exit();}}   mysqli_free_result($result); }
else{echo "用户名或密码错误,系统将在3秒后跳转到登录界面,请重新填写登录信息!";header('refresh:3; url=index.php');exit();}     mysqli_close($link);}?>

3.repuest.php

用于订货表单的显示

<?php header('Content-type:text/html; charset=utf-8');
//接受用户的选择
if (isset($_POST['request'])) {
$name = trim($_POST['name']);
?>
<!-- 用户请求表-->
<form action="request2.php" method="post">
<fieldset>
<legend>请求清单</legend>
<ul>
<li>
<lable>角色名</lable>
<?php echo '  :  ';?>
<input name="peoplename"   value="">
</li>
<li>
<lable>物品名</lable>
<?php echo '  :  ';?>
<input type="text" name="name" readonly="readonly"  value="<?php  echo $name;?>">
</li>
<li>
<lable>数  &nbsp  目</lable>
<?php echo '  :  ';?>
<input type="text" name="num"  value="">
</li>
<li>
<input type="submit" name="request" value="请求">
</li>
</ul>
</fieldset><?php
}
?>

4.request2.php

用于让订货信息输入数据库

<?php header('Content-type:text/html; charset=utf-8');if (isset($_POST['request'])) {# 接收用户的请求信息$name = trim($_POST['name']);$peoplename = trim($_POST['peoplename']);$num = trim($_POST['num']);if(($name=="") || ($peoplename=="") || ($num=="") ){header('refresh:3; url=index.php');echo "人物与数目不能为空,系统将在3秒后跳转到首页!";exit;}if($num<=0){header('refresh:3; url=index.php');echo "数据输入不合法,系统将在3秒后跳转到首页!";exit;}$link = mysqli_connect( 'localhost' , 'root', '' , 'test' );   if (!$link) {  printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error()); exit; }else{ }mysqli_query($link,'set names utf8'); $peopledid=1;$rest="insert into needs values('','$peoplename','$name',$num,now(),$peopledid)";$result= mysqli_query($link,$rest);if ($result) {echo"请求成功,系统将在3秒后跳转到首页";header('refresh:3; url=index.php');}

5.mian.php

显示出货信息和库存信息

<!--请求清单显示-->
<?php
header('Content-type:text/html; charset=utf-8');$link = mysqli_connect( 'localhost' , 'root', '' , 'test' );
if (!$link) {  printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error()); exit;
}
else{ //echo'数据库连接成功';
}mysqli_query($link,'set names utf8');    //解决中文乱码的问题
echo '
<fieldset>
<legend>申请清单</legend>
<table>
<tr>
<td>编号</td>
<td>申请人</td>
<td>物品</td>
<td>数目</td>
<td>申请时间</td>
<td>是否完成</td>
</tr>
';if ($result = mysqli_query($link, 'SELECT *  FROM  needs ')) {while( $row = mysqli_fetch_assoc($result) ){   ?>
<tr>
<form action="chuhuo.php" method="post">
<td><input type="text" size="10" readonly="readonly" name="id" value="<?php echo $row['id'];?>"></td>
<td><input type="text" size="10" readonly="readonly" name="peoplename" value="<?php echo $row['peoplename'];?>"></td>
<td><input type="text" size="10" readonly="readonly" name="name" value="<?php echo $row['name'];?>"></td>
<td><input type="text" size="10" readonly="readonly" name="num" value="<?php echo $row['num'];?>"></td>
<td><input type="text" size="15" readonly="readonly" name="peopledate" value="<?php echo $row['peopledate'];?>"></td>
<td><input type="text" size="10" readonly="readonly" name="peopledid" value="<?php echo $row['peopledid'];?>"></td>
<td><input type="submit" name="queding" value="确定"></td>
<td><input type="button" onclick='location.href=("index.php")' name="" value="首页"></td>
</form>
</tr><?php}mysqli_free_result($result); echo '</table></fieldset>';
}
mysqli_close($link);
?><!--补货显示-->
<?php$link = mysqli_connect( 'localhost' , 'root', '' , 'test' );
if (!$link) {  printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error()); exit;
}
else{ //echo'数据库连接成功';
}mysqli_query($link,'set names utf8');    //解决中文乱码的问题
echo '
<fieldset>
<legend>库存清单</legend>
<table>
<tr>
<td>编号</td>
<td>物品</td>
<td>数目</td>
</tr>
';if ($result = mysqli_query($link, 'SELECT *  FROM  woods ')) {while( $row = mysqli_fetch_assoc($result) ){   ?>
<tr>
<form action="buhuo.php" method="post">
<td><input type="text" size="10" readonly="readonly" name="id" value="<?php echo $row['id'];?>"></td>
<td><input type="text" size="10" readonly="readonly" name="name" value="<?php echo $row['name'];?>"></td>
<td><input type="text" size="10" readonly="readonly" name="num" value="<?php echo $row['num'];?>"></td>
<td><input type="submit"  name="buhuo" value="补货"></td>
<td><input type="button" onclick='location.href=("index.php")' name="" value="首页"></td>
</form>
</tr><?php}mysqli_free_result($result); echo '</table></fieldset>';
}
mysqli_close($link);
?>

6.chuhuo.php

用于出货的操作，当货物不足时，无法出货，已出货的物品后面出货信息显示为0，没有出货则为1

<!--请求清单操作模块--><?php
header('Content-type:text/html; charset=utf-8');
if (isset($_POST['queding'])) {$peoplename = trim($_POST['peoplename']);$name = trim($_POST['name']);$num = trim($_POST['num']);$peopledid = trim($_POST['peopledid']);$id = trim($_POST['id']);$link = mysqli_connect( 'localhost' , 'root', '' , 'test' );   if (!$link) {  printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error()); exit; }else{ //echo'数据库连接成功';}mysqli_query($link,'set names utf8');    //解决中文乱码的问题$result = mysqli_query($link, "SELECT * FROM woods WHERE id='$id'");$row = mysqli_fetch_assoc($result) ;if($peopledid==0){echo '单子已完成';header('refresh:0; url=main.php');}else{if($row['num']>=$num){$numcha=$row['num']-$num;$peopledid=0;$result1 = mysqli_query($link, "update woods  set num='$numcha'  where name= '$name' ");$result2 = mysqli_query($link, "update  needs set peopledid='$peopledid'  where  id='$id' ");header('refresh:3; url=main.php');echo '出货成功，3秒后返回管理员界面' ;}else{header('refresh:3; url=main.php');echo $peoplename,'货源不足，无法出货，3秒后返回管理员界面';}}mysqli_close($link);
}
?>

7.buhuo.php

用于填写补货数目

<!--补货响应--><?php header('Content-type:text/html; charset=utf-8');
//接受用户的选择
if (isset($_POST['buhuo'])) {$name = trim($_POST['name']);$id = trim($_POST['id']);?><fieldset><legend>补货清单</legend>
<table ><!-- 管理员补货表-->
<tr><td>物品编号</td><td>物品名称</td><td>补货数目</td><tr>
<form action="buhuo2.php" method="post">
<tr>
<td><input name="id" readonly="readonly"  value="<?php echo $id; ?>"></td>
<td><input type="text" size="6" readonly="readonly" name="name" value="<?php echo "{$name}";?>"></td>
<td><input type="text" size="6" name="num" value=""></td>
<td><input type="submit" name="buhuo" value="确定补货"></td>
<tr/>
</form></table></fieldset><?php
}
?>

8.buhuo2.php

用于对补货进行操作

<!--补货操作-->
<?php
header('Content-type:text/html; charset=utf-8');
if (isset($_POST['buhuo'])) {$name = trim($_POST['name']);$num = trim($_POST['num']);$id = trim($_POST['id']);$link = mysqli_connect( 'localhost' , 'root', '' , 'test' );   if (!$link) {  printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error()); exit; }else{ //echo'数据库连接成功';}mysqli_query($link,'set names utf8');    //解决中文乱码的问题$result = mysqli_query($link, "select * from woods WHERE id='$id' ");$row = mysqli_fetch_assoc($result) ;if($num=="" || $id=="" || $name=="" || $num<=0){echo '数据错误，3秒后返回管理员界面';header('refresh:3;url=main.php');exit;}
echo $id;
echo $num,$row['num'];$num2=$num+$row['num'];
echo $num2;$result1 = mysqli_query($link, "update woods  set num='$num2'  where name= '$name' ");if($result1){echo'补货成功，3秒后返回管理员界面';header('refresh:3;url=main.php');exit;}else{echo $name,'补货失败，3秒后返回管理员界面';header('refresh:3;url=main.php');exit;}mysqli_free_result($result); }
?>

二：数据库设计

1.user表

由用户名：user ,密码: passwd组成。

user,主键，类型为char,长度根据需求自选，个人为6。

passwd，类型为char，长度根据需求自选，个人为6。

user表用于存储管理员账号

2.woods表

由物品id：id ，物品名称: name，物品数目：num组成。

id，主键，自增，类型为int ，长度默认。

name，类型char，长度20。

num，类型int，长度默认。

用于存储已有物品

3.needs表

由物品id：id ，物品名称: name，申请人：peoplename，物品数目：num，申请时间：peopledate，是否出货：peopledid组成。

id，主键自增，类型int，长度默认。

name，类型char，长度20。

peoplename，类型char，长度20。