HTTP请求实现

把以下代码拷贝到新创建的project中就能看到效果

HelloWorldScene.h

#include "cocos2d.h"

/*记得要引头文件*/

#include "extensions/cocos-ext.h"

#include "network/HttpClient.h"

USING_NS_CC;

USING_NS_CC_EXT;

using namespace network;

class HelloWorld : public cocos2d::Layer

{

public:

    // there's no 'id' in cpp, so we recommend returning the class instance pointer

    static cocos2d::Scene* createScene();

    // Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone

    virtual bool init();  

    // a selector callback

    void menuCloseCallback(cocos2d::Ref* pSender);

    void onMenuGetTestClicked(Ref* sender);

    void onMenuPostBinaryTestClicked(Ref* sender);

    //Http Response Callback

    void onHttpRequestCompleted(cocos2d::network::HttpClient *sender, cocos2d::network::HttpResponse *response);

    // implement the "static create()" method manually

    CREATE_FUNC(HelloWorld);

};

HelloWorldScene.cpp

#include "HelloWorldScene.h"

Scene* HelloWorld::createScene()

{

    // 'scene' is an autorelease object

    auto scene = Scene::create();

    // 'layer' is an autorelease object

    auto layer = HelloWorld::create();

    // add layer as a child to scene

    scene->addChild(layer);

    // return the scene

    return scene;

}

// on "init" you need to initialize your instance

bool HelloWorld::init()

{

    //////////////////////////////

    // 1. super init first

    if ( !Layer::init() )

    {

        return false;

    }

    auto winSize = Director::getInstance()->getWinSize();

    const int MARGIN = 40;

    const int SPACE = 70;

    auto label = Label::createWithTTF("Http Request Test", "arial.ttf", 28);

    label->setPosition(Point(winSize.width / 2, winSize.height - MARGIN));

    addChild(label);

    auto menuRequest = Menu::create();

    menuRequest->setPosition(Point::ZERO);

    addChild(menuRequest);

    //Get

    auto labelGet = Label::createWithTTF("Test Get", "arial.ttf", 44);

    auto itemGet = MenuItemLabel::create(labelGet, CC_CALLBACK_1(HelloWorld::onMenuGetTestClicked, this));

    itemGet->setPosition(Point(winSize.width / 2, winSize.height - MARGIN - SPACE));

    menuRequest->addChild(itemGet);

    auto labelPostBinary = Label::createWithTTF("Test Post Binary", "arial.ttf", 44);

    auto itemPostBinary = MenuItemLabel::create(labelPostBinary, CC_CALLBACK_1(HelloWorld::onMenuPostBinaryTestClicked, this));

    itemPostBinary->setPosition(Point(winSize.width / 2, winSize.height - MARGIN - 3 * SPACE));

    menuRequest->addChild(itemPostBinary);

    return true;

}

void HelloWorld::onMenuGetTestClicked(Ref* sender)

{

    HttpRequest* request = new  HttpRequest();

    request->setUrl("GET请求网址");

    request->setRequestType(HttpRequest::Type::GET);

    request->setResponseCallback(this, httpresponse_selector(HelloWorld::onHttpRequestCompleted));

    request->setTag("GET test1");

    HttpClient::getInstance()->send(request);

    request->release();

}

void HelloWorld::onMenuPostBinaryTestClicked(cocos2d::Ref *sender)

{

    HttpRequest* request = new HttpRequest();

    request->setUrl("post请求网址");

    request->setRequestType(HttpRequest::Type::POST);

    request->setResponseCallback(this, httpresponse_selector(HelloWorld::onHttpRequestCompleted));

   const  char* postData = "參数 params = Value";

    request->setRequestData(postData,strlen(postData) );

    request->setTag("POST test1");

    HttpClient::getInstance()->send(request);

    request->release();

}

void HelloWorld::onHttpRequestCompleted(cocos2d::network::HttpClient *sender, cocos2d::network::HttpResponse *response)

{

    if (!response) {

        return;

    }

    if (0 != strlen(response->getHttpRequest()->getTag())) {

        log("%s completed",response->getHttpRequest()->getTag());

    }

    long statusCode = response->getResponseCode();

    char statusString[64] = {};

    sprintf(statusString, "HTTP Status Code: %ld, tag = %s",statusCode,response->getHttpRequest()->getTag());

    log("response code: %ld",statusCode);

    if (!response->isSucceed()) {

        log("response failed");

        log("error buffer: %s",response->getErrorBuffer());

        return;

    }

    std::vector<char>* buffer = response->getResponseData();

    printf("Http Test, dump data: ");

    for (unsigned int i = 0 ; i < buffer->size();i++) {

        printf("%c",(*buffer)[i]);

    }

    printf("\n");

}