标签:function 项目 网站 db smarty pdo sql var 借书
网站的内容是在当当网上下载的图片作为页面的填充。
源代码获取:https://github.com/akh5/PHP/tree/master/library1.1
功能及实现代码
简介
PHP实现的简单借书网站,能够进行用户的注册,登陆。可以根据图书类别,进行索引,可以根据书名进行查找,用户可以进行借书,还书,已经查看当前已借书籍。
所用技术及运行环境
前端: HTML,CSS,JS
PHP: 设计模式->MVC,外部引擎->smarty
数据库: MySQL
集成环境: Wampserver
代码体量一览
功能介绍
轮播图模块
通过JS实现
var imgs = document.getElementsByClassName("images");
var left = document.getElementsByClassName("left")[0];
var right = document.getElementsByClassName("right")[0];
var len = imgs.length;
var current = 0;
function flip() {
left.onclick = function () {
current--;
for(var i=0;i<imgs.length;i++){
imgs[i].className='images';
}
if(current<0){
current=imgs.length-1;
}
imgs[current].className='images active';
}
right.onclick = function () {
current++;
for(var i=0;i<imgs.length;i++){
imgs[i].className='images';
}
if(current>imgs.length-1){
current=0;
}
imgs[current].className='images active';
}
}
flip();
setInterval(function () {
current++;
for(var i=0;i<imgs.length;i++){
imgs[i].className='images';
}
if(current>imgs.length-1){
current=0;
}
imgs[current].className='images active';
},3500)
通过修改选择器的方法显示,只有active的选择器可以显示图片,而向左向右的滚动,也就是将数组下标加一或减一,然后将当前的选择器加上active后代。而自动滚动,就是将向右的功能设定3.5秒的循环。
登陆注册模块
注册和登录窗口都是在一个页面内完成的,通设置display属性唤醒其中一个窗口并隐藏另一个窗口,通过表单传值进行数据库操作
var start = document.getElementsByClassName('icon')[0];
var shadow = document.getElementsByClassName('shadow')[0];
var regin = document.getElementsByClassName('regin')[0];
var sign = document.getElementsByClassName('sign')[0];
var close = document.getElementsByClassName('close');
var rsi = document.getElementById('rsi');
start.onclick=function () {
shadow.style.display='block';
regin.style.display='block';
}
rsi.onclick = function () {
regin.style.display='none';
sign.style.display='block';
}
close[0].onclick = function () {
shadow.style.display='none';
regin.style.display='none';
}
close[1].onclick = function () {
shadow.style.display='none';
sign.style.display='none';
}
查看账户模块
借书模块
代码介绍
Frame
Libs
在Libs文件夹中存放操作相同,且重复使用多次的代码,用抽象类对其进行封装,分为BaseController,和BaseModel的抽象类,以后所有的控制器,和模型类都要继承这两个抽象类
BaseController主要封装了smarty对象,并设定其左右界限符
<?php
namespace Frame\Libs;
abstract class BaseController
{
protected $smarty = null;
public function __construct()
{
//创建smarty对象
$smarty = new \Frame\Vendors\Smarty();
$smarty->left_delimiter = "<{";
$smarty->right_delimiter = "}>";
$smarty->setCompileDir(sys_get_temp_dir().DS."blog_t".DS);
$smarty->setTemplateDir(VIEW_PATH);
$this->smarty = $smarty;
}
}
BaseMooule主要封装了pdo对象,方便以后所有的数据库操作
<?php
namespace Frame\Libs;
abstract class BaseModel
{
protected $pdo = null;
public function __construct()
{
$this->pdo = new \Frame\Vendors\PDOWrapper();
}
public static function getInstance()
{
$modelClassName = get_called_class();
return new $modelClassName();
}
}
Vendor
Vendor文件夹中,除了放置smarty外,主要还封装了我们自己定义的PDO类,通过找到当前的数据库config,提前实例化pdo类
<?php
namespace Frame\Vendors;
use \PDO;
use \Exception;
use \PDOException;
final class PDOWrapper
{
private $db_type;
private $db_host;
private $db_port;
private $db_user;
private $db_pass;
private $db_name;
private $charset;
private $pdo = null;
public function __construct()
{
$this->db_type = $GLOBALS['config']['db_type'];
$this->db_host = $GLOBALS['config']['db_host'];
$this->db_port = $GLOBALS['config']['db_port'];
$this->db_user = $GLOBALS['config']['db_user'];
$this->db_pass = $GLOBALS['config']['db_pass'];
$this->db_name = $GLOBALS['config']['db_name'];
$this->charset = $GLOBALS['config']['charset'];
$this->createPDO(); //创建PDO对象
$this->setErrMode();//设定报错模式
}
private function createPDO()
{
try{
$dsn = "{$this->db_type}:host={$this->db_host};port={$this->db_port};dbname={$this->db_name};charset={$this->charset}";
$this->pdo = new \PDO($dsn,$this->db_user,$this->db_pass);
}catch(PDOException $e)
{
echo "<h2>创建pdo失败</h2><br>";
echo "错误行号".$e->getLine()."<br>";
echo "错误文件".$e->getFile()."<br>";
echo "错误信息".$e->getMessage()."<br>";
die();
}
}
private function setErrMode()
{
$this->pdo->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
}
public function exec($sql)
{
try{
return $this->pdo->exec($sql);
}catch(PDOException $e)
{
$this->showErr($e);
}
}
public function fetchOne($sql)
{
try{
$PDOStatement = $this->pdo->query($sql);
return $PDOStatement->fetch(PDO::FETCH_ASSOC);
}catch(PDOException $e)
{
$this->showErr($e);
}
}
public function fetchAll($sql)
{
try{
$PDOStatement = $this->pdo->query($sql);
return $PDOStatement->fetchAll(PDO::FETCH_ASSOC);
}catch(PDOException $e)
{
$this->showErr($e);
}
}
public function rowCount($sql)
{
try{
$PDOStatement = $this->pdo->query($sql);
return $PDOStatement->rowCount();
}catch(PDOException $e)
{
$this->showErr($e);
}
}
private function showErr($e)
{
echo "<h2>执行sql语句失败</h2>";
echo "错误行号".$e->getLine();
echo "错误文件".$e->getFile();
echo "错误信息".$e->getMessage();
die();
}
}
Frame.class.php
最重要的是Frame类,是当前网站所有功能运行的基础,类中封装了类的自动加载器,并初始化config文件,通过地址传值的方式,自动调用相应的控制器,及其控制器中的方法
我们通过地址中传入的?c=控制器前缀&a=控制器方法然后取到控制器前缀并拼接上Controller字符串就能在控制器作用域中找到相应的控制器类
<?php
namespace Frame;
final class Frame
{
public static function run()
{
self::initConfig();
self::initRoute();
self::initConst();
self::initAutoLoad();
self::initDispath();
}
private static function initConfig()
{
$GLOBALS['config'] = require_once(APP_PATH."Conf".DS."Config.php");
}
private static function initRoute()
{
$p = $GLOBALS['config']['default_platform'];
$c = isset($_GET['c']) ? $_GET['c']:$GLOBALS['config']['default_controller'];
$a = isset($_GET['a']) ? $_GET['a']:$GLOBALS['config']['default_action'];
define('PLAT',$p);
define('CONTROLLER',$c);
define('ACTION',$a);
}
private static function initConst()
{
define('VIEW_PATH',APP_PATH.'View'.DS.CONTROLLER.DS);
}
private static function initAutoLoad()
{
spl_autoload_register(function($className)
{
$filename = ROOT_PATH.str_replace('\\',DS,$className).".class.php";
if(file_exists($filename))
require_once($filename);
});
}
private static function initDispath()
{
$controllerClassName = PLAT.'\\'.'Controller'.'\\'.CONTROLLER."Controller";
$controllerObj = new $controllerClassName;
$action_name = ACTION;
$controllerObj->$action_name();
}
}
Home
Home中存放控制器(Controller),模型(Model),视图(View)文件,控制器中主要是与视图结合,用户操作的界面,模型类中主要是数据库操作
Controller
Index是默认入口,也是页面打开最先展示的
<?php
namespace HOME\Controller;
use Frame\Libs\BaseController;
use Home\Model\IndexModel;
use Home\Model\SignModel;
final class IndexController extends BaseController
{
public function index()
{
$modelObj = IndexModel::getInstance();
//$this->smarty->assign("arrs",$arrs);
$modelObj->regin();
$this->smarty->display(APP_PATH.DS."View".DS."Library.html");
}
public function sign()
{
$modelObj = SignModel::getInstance();
$modelObj->sign();
}
}
index()方法中用smarty加载视图文件,而登陆时账号的验证方法,在方法中通过其对应的Model对象完成,而sign()方法,只有当地址传值?a=sign时调用,对应的就是注册的数据库方法
user控制器中,是当登陆验证成功后的可交互页面,通过session显示当前用户,搜索和类别操作,通过地址传递?b=类别 ?bn=书名传递相应的查找条件
<?php
namespace HOME\Controller;
use \Frame\Libs\BaseController;
final class userController extends BaseController
{
public function index()
{
// $modelObj = IndexModel::getInstance();
$this->smarty->assign('username',$_SESSION['username']);
$this->smarty->display(APP_PATH.DS."View".DS."user.html");
if(isset($_POST['b']))
{
$bookcate = $_POST['b'];
header("Location:?c=lend&b={$bookcate}");
} if(isset($_POST['sear']))
{
$bookname = $_POST['sear'];
header("Location:?c=lend&bn={$bookname}");
}
}
}
lend控制器主要作用就是显示查找到的书籍
<?php
namespace HOME\Controller;
use \Frame\Libs\BaseController;
use \Home\Model\lendModel;
final class lendController extends BaseController
{
public function index()
{
$modelObj = lendModel::getInstance();
if(isset($_GET['b']))
{
$arr = $modelObj->lend();
}
if(isset($_GET['bn']))
{
$arr = $modelObj->lendByname();
}
$this->smarty->assign('arrs',$arr);
$this->smarty->display(APP_PATH.DS."View".DS."lend.html");
}
}
borrow控制器中有借书和还书的相应方法通过地址传递?a=borrow,或?a=back来判断是借书还是还书操作
<?php
namespace HOME\Controller;
use \Frame\Libs\BaseController;
use \Home\Model\borrowModel;
final class borrowController extends BaseController
{
public function index()
{
$modelObj = borrowModel::getInstance();
$arr = $modelObj->show();
// var_dump($arr);
$this->smarty->assign('username',$_SESSION['username']);
$this->smarty->assign('arrs',$arr);
$this->smarty->display(APP_PATH.DS."View".DS."borrow.html");
}
public function borrow()
{
$modelObj = borrowModel::getInstance();
$modelObj->borrow();
$arr = $modelObj->show();
// var_dump($arr);
$this->smarty->assign('username',$_SESSION['username']);
$this->smarty->assign('arrs',$arr);
$this->smarty->display(APP_PATH.DS."View".DS."borrow.html");
}
public function back()
{
$modelObj = borrowModel::getInstance();
$modelObj->back();
$arr = $modelObj->show();
// var_dump($arr);
$this->smarty->assign('username',$_SESSION['username']);
$this->smarty->assign('arrs',$arr);
$this->smarty->display(APP_PATH.DS."View".DS."borrow.html");
}
}
Model
Model中是具体的pdo操作数据库方法
IndexModel验证当前是否登陆,已经检查登陆是否正确的操作
<?php
namespace Home\Model;
use \Frame\Libs\BaseModel;
class IndexModel extends BaseModel
{
public function regin()
{
if(isset($_POST['submit'])){
$name=$_POST['racc'];//post获取表单里的name
$password=$_POST['rpass'];//post获取表单里的password
$sql = "select password from user where account='$name'";
$pass=$this->pdo->fetchOne($sql);
if($password!=$pass['password'])
{
echo "<script>alert('用户名或密码错误')</script>";
}else{
$_SESSION['username'] = $name;
$_SESSION['password'] = $password;
header("Location:?c=user");
}
}
}
}
登陆成功后,会将用户名和密码存入session当中,以便之后操作
signModel中通过插入语句进行注册操作
namespace Home\Model;
use \Frame\Libs\BaseModel;
class SignModel extends BaseModel
{
public function sign()
{
if(!isset($_POST['submit'])){
exit("错误执行");
}//判断是否有submit操作
$name=$_POST['sacc'];//post获取表单里的name
$password=$_POST['spass'];//post获取表单里的password
$sql = "INSERT INTO user(account,password) VALUES('{$name}','{$password}')";
$res = $this->pdo->exec($sql);
if($res){
echo "<script>alert('注册成功')</script>";
header("Location:index.php");
}else{
echo $name;
echo $password;
var_dump($res);
echo mysqli_errno($res);
}
}
}
lendModel查找相应书籍,相对简单通过fetchall方法
<?php
namespace Home\Model;
use \Frame\Libs\BaseModel;
class lendModel extends BaseModel
{
public function lend()
{
$bookcate = $_GET['b'] ;
$sql = "SELECT * FROM books WHERE Category='$bookcate' AND SurplusQuantity>0";
return $this->pdo->fetchAll($sql);
}
public function lendByname()
{
$bookname = $_GET['bn'] ;
$sql = "SELECT * FROM books WHERE BookName='$bookname' AND SurplusQuantity>0";
return $this->pdo->fetchAll($sql);
}
}
borrowModel,借书与还书,都是通过书名查找,并通过+1或-1操作对其修改,并将用户名和书名同时插入到另一个表当中。
<?php
namespace Home\Model;
use \Frame\Libs\BaseModel;
class borrowModel extends BaseModel
{
public function borrow()
{
$name = $_SESSION['username'];
$bookname = $_GET['bn'];
$sql1 = "SELECT * FROM books WHERE BookName='$bookname'";
$arr = $this->pdo->fetchOne($sql1);
$newnumber = $arr['SurplusQuantity']-1;
$sql2 = "UPDATE books SET SurplusQuantity = '$newnumber' WHERE BookName='$bookname'";
$this->pdo->exec($sql2);
$sql3 = "INSERT INTO userbook(user,BookName) VALUES('$name','$bookname') ";
$this->pdo->exec($sql3);
}
public function show()
{
$name = $_SESSION['username'];
$sql = "SELECT BookName FROM userbook WHERE user='$name'";
return $this->pdo->fetchAll($sql);
}
public function back()
{
$name = $_SESSION['username'];
$bookname = $_GET['bn'];
$sql1 = "SELECT * FROM books WHERE BookName='$bookname'";
$arr = $this->pdo->fetchOne($sql1);
$newnumber = $arr['SurplusQuantity']+1;
$sql2 = "UPDATE books SET SurplusQuantity = '$newnumber' WHERE BookName='$bookname'";
$this->pdo->exec($sql2);
$sql3 = "DELETE FROM userbook WHERE BookName='$bookname'AND user='$name' ";
$this->pdo->exec($sql3);
}
}
标签:function,项目,网站,db,smarty,pdo,sql,var,借书 来源: https://blog.csdn.net/MPF1230/article/details/104724548
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