cocos2dx 实现连接登陆服务器认证后进入游戏

这里使用mysql数据库存储用户信息，使用php连接查询数据库，并将结果返回，c++端使用GET或POST的方式发送数据，获取服务器端的数据库分析，是否成功登陆！client端使用cocos2dx 的HTTPCLIENT类，服务器端使用 PHP + MYSQL +APACHE的环境。

后端PHP代码：

checkUserInfo.php

<?phperror_reporting(E_ALL ^ E_DEPRECATED);$us=$_REQUEST["name"];$ps=$_REQUEST["password"];$conn=mysql_connect("localhost","root","root123456");if(!$conn){die('connect mysql false'.mysql_error());}//echo "connect mysql sucessfull <br>";//open databasemysql_select_db("testphp");//select userinfo$sql = "select * from user where name ='".$us."' and password ='".$ps."';";//execute sql$result = mysql_query($sql);$n = mysql_num_rows($result);mysql_close($conn);if($n>0){session_start();$row = mysql_fetch_array($result);//var_dump($row);echo "Login Success";}else{echo "Login Failed";}

mysql数据库信息：testphp库里有一张user表，里面有一条记录：name=hello,password=world

mysql> use testphpDatabase changedmysql> show tables;+-------------------+| Tables_in_testphp |+-------------------+| user              |+-------------------+1 row in set (0.00 sec)mysql> select *from user where name="hello" and password = "world";+-------+----------+| name  | password |+-------+----------+| hello | world    |+-------+----------+1 row in set (0.00 sec)

客户端使用 HloginGame.h" 和HloginGame.cpp" 来验证用户的登陆。

HloginGame.h"代码实现：

#ifndef __HloginGame__HloginGame__#define __HloginGame__HloginGame__#include "cocos2d.h"#include "extensions/cocos-ext.h"//HTTP#include "network/HttpClient.h"#include "network/HttpRequest.h"#include "network/HttpResponse.h"USING_NS_CC;USING_NS_CC_EXT;using namespace cocos2d::network;class HloginGame : public cocos2d::Layer{public:virtual bool init();static cocos2d::Scene* createScene();CREATE_FUNC(HloginGame);EditBox* p_User_EditBox;EditBox* p_Psw_EditBox;LabelTTF* m_labelStatusCode;void btncallback(Ref* pSender);void onHttpRequestCompleted(HttpClient* client, HttpResponse* response);void running(float dt);int r;//void onExit();void onEnterTransitionDidFinish();};#endif

HloginGame.cpp 代码实现：

#include "HloginGame.h"#include "Hloading.h"#include "HMenu.h"#include "SimpleAudioEngine.h"USING_NS_CC;using namespace CocosDenshion;Scene* HloginGame::createScene(){auto scene = Scene::create();auto layer = HloginGame::create();scene->addChild(layer);return scene;}bool HloginGame::init(){if (!Layer::init()){return false;}Size size = Director::getInstance()->getVisibleSize();//usernamep_User_EditBox = EditBox::create(CCSizeMake(250, 50), Scale9Sprite::create("login_edit_normal.9.png"));p_User_EditBox->setPosition(Vec2(size.width / 2 , size.height * 3 / 4));p_User_EditBox->setFontColor(Color3B(0,255,0));p_User_EditBox->setPlaceHolder("Username");p_User_EditBox->setMaxLength(12);p_User_EditBox->setInputMode(cocos2d::ui::EditBox::InputMode::SINGLE_LINE);p_User_EditBox->setReturnType(cocos2d::ui::EditBox::KeyboardReturnType::DONE);addChild(p_User_EditBox);//passwordp_Psw_EditBox = EditBox::create(CCSizeMake(250, 50), Scale9Sprite::create("login_edit_normal.9.png"));p_Psw_EditBox->setPosition(Vec2(size.width / 2 , size.height / 2 + 100));p_Psw_EditBox->setFontColor(Color3B(0, 255, 0));p_Psw_EditBox->setPlaceHolder("Password");p_Psw_EditBox->setMaxLength(12);p_Psw_EditBox->setInputMode(cocos2d::ui::EditBox::InputMode::NUMERIC);p_Psw_EditBox->setInputFlag(cocos2d::ui::EditBox::InputFlag::PASSWORD);p_Psw_EditBox->setReturnType(cocos2d::ui::EditBox::KeyboardReturnType::DONE);addChild(p_Psw_EditBox);Scale9Sprite* confirmnormal = Scale9Sprite::create("btn_style_alert_dialog_button_normal.9.png");confirmnormal->setContentSize(CCSizeMake(100, 60));Scale9Sprite* confirmpressd = Scale9Sprite::create("btn_style_alert_dialog_button_pressed.9.png");confirmpressd->setContentSize(CCSizeMake(100, 60));MenuItemSprite* menuitem = MenuItemSprite::create(confirmnormal, confirmpressd, CC_CALLBACK_1(HloginGame::btncallback,this));Menu* menu = CCMenu::create(menuitem, NULL);menu->setPosition(size.width / 2 - 85, size.height / 4);this->addChild(menu);//m_labelStatusCode = LabelTTF::create("HTTP Status Code", "Marker Felt", 20);m_labelStatusCode->setAnchorPoint(Vec2(0, 0.5));m_labelStatusCode->setPosition(Vec2(size.width / 2, size.height / 4));m_labelStatusCode->setColor(Color3B(255, 0, 0));addChild(m_labelStatusCode);m_labelStatusCode->setString("waiting...");return true;}void HloginGame::btncallback(Ref* pSender){bool requestType_is_get = false;//get or postif (requestType_is_get){HttpRequest* request = new HttpRequest();// create requestObjectstd::string str1 = "192.168.126.81/tst/checkUserInfo.php?";std::string str2 = p_User_EditBox->getText();std::string str3 = p_Psw_EditBox->getText();std::string struser = "name=";std::string strpsw = "&password=";str1 = str1 + struser + str2 + strpsw + str3;request->setUrl(str1.c_str());//set url request->setRequestType(HttpRequest::Type::GET);//设置为Get模式request->setResponseCallback(CC_CALLBACK_2(HloginGame::onHttpRequestCompleted,this));//设置响应的回调 request->setTag("GET test");HttpClient::getInstance()->send(request);//send requestrequest->release();}else{HttpRequest* request = new HttpRequest();std::string str1 = "192.168.126.81/tst/checkUserInfo.php";std::string str2 = p_User_EditBox->getText();std::string str3 = p_Psw_EditBox->getText();std::string struser = "name=";std::string strpsw = "&password=";str2 = struser + str2 + strpsw + str3;request->setUrl(str1.c_str());//urlrequest->setRequestType(HttpRequest::Type::POST);//设置为Post模式request->setResponseCallback(CC_CALLBACK_2(HloginGame::onHttpRequestCompleted, this));// 设置响应的回调const char* postData = str2.c_str();request->setRequestData(postData, strlen(postData));//set userdata:usernamed and passwordrequest->setTag("POST test");HttpClient::getInstance()->send(request);//request->release();//}}void HloginGame::onHttpRequestCompleted(HttpClient* client, HttpResponse* response){if (!response->isSucceed()){CCString strError;strError.initWithFormat("Receive Error! \n%s\n", response->getErrorBuffer());m_labelStatusCode->setString(strError.getCString());return;}std::vector<char> *buffer = response->getResponseData();//std::string recieveData;for (unsigned int i = 0; i < buffer->size(); i++){recieveData += (*buffer)[i];}std::string result = recieveData.c_str();m_labelStatusCode->setString(result);std::string::size_type idx = result.find("Success");if (idx != std::string::npos){//dely 2 sec running gamescheduleOnce(schedule_selector(HloginGame::running), 2);}}void HloginGame::running(float dt){cocos2d::Director::getInstance()->replaceScene(HMenu::createScene());}void HloginGame::onExit(){Layer::onExit();SimpleAudioEngine::getInstance()->stopBackgroundMusic();}void HloginGame::onEnterTransitionDidFinish(){Layer::onEnterTransitionDidFinish();SimpleAudioEngine::getInstance()->playBackgroundMusic("menuMusic.mp3", true);}

运行的效果如下：

登陆成功，显示Login Success，然后跳转到游戏！

注意的问题：

1.client 发送的 关键字一定要和服务器端的关键字一致，这是一个容易忽略的问题，客户端使用username，服务器的关键字是name，就会出错！

2.对服务器端PHP返回的结果的处理：

std::vector<char> *buffer = response->getResponseData();//std::string recieveData;for (unsigned int i = 0; i < buffer->size(); i++){recieveData += (*buffer)[i];}