4. APP 接口实例
1.单例模式连接数据库
1.构造函数需要为非pulic
2.只能被自身实例化，不能在其他类中实例化
3.拥有一个保存类的实例，静态成员变量$_instance;
3.拥有一个访问这个实例的公共的静态方法
4.私有化克隆方法 class Db { private static $_instance; private static $_connectSource; private $_dbConfig = array( 'host' => 'localhost', 'user' => 'root', 'password' => '123456', 'database' =>'test', ); private function __construct() { } public static function getInstance() { if (!(self::$_instance instanceof self)) { self::$_instance = new self(); } return self::$_instance; } public function connect() { if (!self::$_connectSource) { self::$_connectSource = mysql_connect($this->_dbConfig['host'], $this->_dbConfig['user'], $this->_dbConfig['password']); if (!self::$_connectSource) { die('mysql connect error : ' . mysql_error()); } mysql_select_db($this->_dbConfig['database'], self::$_connectSource); mysql_query("set names UTF8", self::$_connectSource); } return self::$_connectSource; } } $connect = Db::getInstance()->connect(); $sql = "select * from student"; $a = mysql_query($sql, $connect); echo mysql_num_rows($a); var_dump($a); 2.首页APP接口开发
require_once 'response.php'; require_once 'db.php'; //http://app.com/list.php?page=1&pagesize=12 $page = isset($_GET['page']) ? $_GET['page'] : 1; $pageSize = isset($_GET['pagesize']) ? $_GET['pagesize'] : 1; if (!is_numeric($page) || !is_numeric($pageSize)) { return Response::show(401, '数据不合法', null, 'xml'); } $sql = 'select * from student'; $connect = Db::getInstance()->connect(); $result = mysql_query($sql, $connect); var_dump($result);
3. APP 版本升级
/** * version_upgrade 版本升级信息表 */
CREATE TABLE `version_upgrade` ( `id` smallint(4) unsigned NOT NULL AUTO_INCREMENT, `app_id` smallint(4) unsigned NOT NULL DEFAULT '0' COMMENT '客户端设备id 1安卓pad 2安卓手机 3ios手机 4iospad', `version_id` smallint(4) unsigned DEFAULT '0' COMMENT '大版本号id', `version_mini` mediumint(8) unsigned DEFAULT '0' COMMENT '小版本号', `version_code` varchar(10) DEFAULT NULL COMMENT '版本标识 1.2', `type` tinyint(2) unsigned DEFAULT NULL COMMENT '是否升级 1升级，0不升级，2强制升级', `apk_url` varchar(255) DEFAULT NULL, `upgrade_point` varchar(255) DEFAULT NULL COMMENT '升级提示', `status` tinyint(2) DEFAULT NULL, `create_time` int(11) DEFAULT NULL, `update_time` int(11) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
/** * app表 客户端表 */
CREATE TABLE `app` ( `id` smallint(4) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键id', `name` varchar(10) DEFAULT NULL COMMENT 'APP类型名称 如 ： 安卓手机', `is_encryption` tinyint(1) NOT NULL DEFAULT '0' COMMENT '是否加密 1加密 0不加密', `key` varchar(20) NOT NULL DEFAULT '0' COMMENT '加密key', `image_size` text COMMENT '按json_encode存储', `create_time` int(11) NOT NULL COMMENT '创建时间', `update_time` int(11) NOT NULL COMMENT '更新时间', `status` tinyint(1) NOT NULL DEFAULT '1' COMMENT '状态 1正常 0删除', PRIMARY KEY (`id`) ) ENGINE=MyISAM AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
version表 版本表 require_once('./common.php'); class Init extends Common { public function index() { $this->check(); // 获取版本升级信息 $versionUpgrade = $this->getversionUpgrade($this->app['id']); if($versionUpgrade) { if($versionUpgrade['type'] && $this->params['version_id'] < $versionUpgrade['version_id']) { $versionUpgrade['is_upload'] = $versionUpgrade['type']; }else { $versionUpgrade['is_upload'] = 0; } return Response::show(200, '版本升级信息获取成功', $versionUpgrade); } else { return Response::show(400, '版本升级信息获取失败'); } } } $init = new Init(); $init->index(); /** * 处理接口公共业务 */ require_once('./response.php'); require_once('./db.php'); class Common { public $params; public $app; public function check() { $this->params['app_id'] = $appId = isset($_POST['app_id']) ? $_POST['app_id'] : ''; $this->params['version_id'] = $versionId = isset($_POST['version_id']) ? $_POST['version_id'] : ''; $this->params['version_mini'] = $versionMini = isset($_POST['version_mini']) ? $_POST['version_mini'] : ''; $this->params['did'] = $did = isset($_POST['did']) ? $_POST['did'] : ''; $this->params['encrypt_did'] = $encryptDid = isset($_POST['encrypt_did']) ? $_POST['encrypt_did'] : ''; if(!is_numeric($appId) || !is_numeric($versionId)) { return Response::show(401, '参数不合法'); } // 判断APP是否需要加密 $this->app = $this->getApp($appId); if(!$this->app) { return Response::show(402, 'app_id不存在'); } if($this->app['is_encryption'] && $encryptDid != md5($did . $this->app['key'])) { return Response::show(403, '没有该权限'); } } public function getApp($id) { $sql = "select * from `app` where id = " . $id ." and status = 1 limit 1"; $connect = Db::getInstance()->connect(); $result = mysql_query($sql, $connect); return mysql_fetch_assoc($result); } public function getversionUpgrade($appId) { $sql = "select * from `version_upgrade` where app_id = " . $appId ." and status = 1 limit 1"; $connect = Db::getInstance()->connect(); $result = mysql_query($sql, $connect); return mysql_fetch_assoc($result); } /** * 根据图片大小组装相应图片 * @param string $imageUrl * @param string $size */ public function setImage($imageUrl, $size) { if(!$imageUrl) { return ''; } if(!$size) { return $imageUrl; } $type = substr($imageUrl, strrpos($imageUrl, '.')); if(!$type) { return ''; } $path = substr($imageUrl, 0, strrpos($imageUrl, '.')); return $path . '_' . $size . $type; } }4. APP 错误日志
require_once('./common.php'); class ErrorLog extends Common { public function index() { $this->check(); $errorLog = isset($_POST['error_log']) ? $_POST['error_log'] : ''; if(!$errorLog) { return Response::show(401, '日志为空'); } $sql = "insert into error_log( `app_id`, `did`, `version_id`, `version_mini`, `error_log`, `create_time`) values( ".$this->params['app_id'].", '".$this->params['did']."', ".$this->params['version_id'].", ".$this->params['version_mini'].", '".$errorLog."', ".time()." )"; $connect = Db::getInstance()->connect(); if(mysql_query($sql, $connect)) { return Response::show(200, '错误信息插入成功'); } else { return Response::show(400, '错误信息插入失败'); } } } $error = new ErrorLog(); $error->index();