Cocos2d-x下HTTP网络通讯

引入头文件：

 #include "cocos-ext.h"

添加下载按钮：

     CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
                                         "exit.png",
                                         "exit.png",
                                         this,
                                         menu_selector(HelloWorld::menuCloseCallback));

     pCloseItem->setPosition(ccp(origin.x + visibleSize.width - pCloseItem->getContentSize().width/ ,
                                 origin.y + pCloseItem->getContentSize().height/));

     // create menu, it's an autorelease object
     CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
     pMenu->setPosition(CCPointZero);
     this->addChild(pMenu, );

添加回调函数：

 void HelloWorld::menuCloseCallback(CCObject* pSender)
 {
     std::vector<std::string> headers;
     headers.push_back("Content-Type: application/json; charset=utf-8");
     // post data
     const char* postData = "id=1&name=oka";
     unsigned int postDataLen = strlen(postData);

     CCHttpRequest* request = new CCHttpRequest();
     request->setUrl("http://127.0.0.1/test.php");
     request->setRequestType(CCHttpRequest::kHttpPost);
     request->setResponseCallback(this, httpresponse_selector(HelloWorld::onHttpRequestCompleted));
     request->setRequestData(postData, postDataLen);
     request->setTag("GET test");
     request->setHeaders(headers);
     CCHttpClient::getInstance()->setTimeoutForConnect();
     CCHttpClient::getInstance()->send(request);
     request->release();

 }

按钮的回调函数里向服务器发起http请求了，request->setResponseCallback(this, httpresponse_selector(HelloWorld::onHttpRequestCompleted))一行代码，向请求结束时添加了onHttpRequestCompleted回调函数

处理网络请求的回调函数：

 void HelloWorld::onHttpRequestCompleted(cocos2d::CCNode *sender ,void *data)
 {
     CCHttpResponse* response = (CCHttpResponse*)data;
     if(!response)
     {
         return;
     }

     if( != strlen(response->getHttpRequest()->getTag()))
     {
         CCLog("%s completed", response->getHttpRequest()->getTag());
     }

     int statusCode = response->getResponseCode();
     CCLog("Status Code: %d", statusCode);
     if(!response->isSucceed())
     {
         CCLog("response failed, error buffer: %s", response->getErrorBuffer());
         return;
     }

     std::vector<char> *buffer = response->getResponseData();
     std::string temp(buffer->begin(), buffer->end());
     CCString* responseData = CCString::create(temp);
     CCLog("%s", responseData->getCString());
 }

执行后Log输出框中就可以看到请求结果了。

记得把request->setUrl("http://127.0.0.1/test.php");替换成测试的URL地址。