【独立开发人员er Cocos2d-x实战 013】Cocos2dx 网络编程实战之星座运势

学习cocos2d-x和cocos creator的圈子：cocos2d-x：436689827    cocos creator：124727696

本篇文章主要内容：jsoncpp的使用，Cocos2dx网络编程，聚合数据星座运势接口使用。

1、jsoncpp使用：

jsoncpp的生成请參考博客：Jsoncpp使用具体解释以及链接问题解决

2、聚合数据星座运势接口使用：

我们先登上聚合数据官网。申请相关的数据后，就能够得到APPKEY等信息，调试例如以下：

3、Cocos2dx网络编程：源代码下载请点击（源代码中包含jsoncpp文件）

#include "HelloWorldScene.h"
#include "CocoStudio/GUI/UIWidgets/UIButton.h"
#include "GUI/CCControlExtension/CCControlButton.h"
#include "network/HttpResponse.h"
#include "network/HttpClient.h"
#include "cocos-ext.h"

#pragma  comment(lib, "json_vc71_libmt.lib")
#include "../jsoncpp/include/json.h"
#include<fstream>
#include <cassert>
using namespace std;

USING_NS_CC;
USING_NS_CC_EXT;

CCScene* HelloWorld::scene()
{
// 'scene' is an autorelease object
CCScene *scene = CCScene::create();

// 'layer' is an autorelease object
HelloWorld *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 ( !CCLayer::init() )
{
return false;
}

CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();

/////////////////////////////
// 2. add a menu item with "X" image, which is clicked to quit the program
//    you may modify it.

// add a "close" icon to exit the progress. it's an autorelease object
CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
"CloseNormal.png",
"CloseSelected.png",
this,
menu_selector(HelloWorld::Http));

pCloseItem->setPosition(ccp(origin.x + visibleSize.width - pCloseItem->getContentSize().width/2 ,
origin.y + pCloseItem->getContentSize().height/2));

// create menu, it's an autorelease object
CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
pMenu->setPosition(CCPointZero);
this->addChild(pMenu, 1);

/////////////////////////////
// 3. add your codes below...

// add a label shows "Hello World"
// create and initialize a label

CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Arial", 24);

// position the label on the center of the screen
pLabel->setPosition(ccp(origin.x + visibleSize.width/2,
origin.y + visibleSize.height - pLabel->getContentSize().height));

// add the label as a child to this layer
this->addChild(pLabel, 1);

// add "HelloWorld" splash screen"
CCSprite* pSprite = CCSprite::create("HelloWorld.png");

// position the sprite on the center of the screen
pSprite->setPosition(ccp(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));

// add the sprite as a child to this layer
this->addChild(pSprite, 0);

return true;
}

void HelloWorld::menuCloseCallback(CCObject* pSender)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT) || (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)
CCMessageBox("You pressed the close button. Windows Store Apps do not implement a close button.","Alert");
#else
CCDirector::sharedDirector()->end();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
exit(0);
#endif
#endif
}

#define URLFORMAT "http://web.juhe.cn:8080/constellation/getAll?consName=%s&type=today&key=%s" //格式化URL
#define APPKEY "" //APPKEY  填写你自己的APPKEY就能够使用</strong></span>
#define BAIYANGZUO "%E7%99%BD%E7%BE%8A%E5%BA%A7" //白羊座

void HelloWorld::Http(CCObject* pSender)
{

cocos2d::extension::CCHttpRequest* request = new cocos2d::extension::CCHttpRequest();

char szUrl[256] = {0};
sprintf_s(szUrl, 255, URLFORMAT, BAIYANGZUO, APPKEY);
request->setUrl(szUrl);
request->setRequestType(cocos2d::extension::CCHttpRequest::kHttpGet);
request->setResponseCallback(this, callfuncND_selector(HelloWorld::onHttpRequestCompleted));
cocos2d::extension::CCHttpClient::getInstance()->send(request);
request->release();

return;
}

void HelloWorld::onHttpRequestCompleted(cocos2d::CCNode *sender ,void *data)
{
cocos2d::extension::CCHttpResponse *response = (cocos2d::extension::CCHttpResponse*)data;
if (!response)
{
return;
}
if (0 != strlen(response->getHttpRequest()->getTag()))
{
CCLOG("%s completed", response->getHttpRequest()->getTag());
}
int statusCode = response->getResponseCode();
char statusString[64] = {};
sprintf(statusString ,"Http status code:%d ,tag = %s" ,statusCode ,response->getHttpRequest()->getTag());
CCLOG("response code:%d" ,statusCode);
if (!response->isSucceed())
{
CCLOG("response failed");
CCLOG("error buffer:%s" ,response->getErrorBuffer());
}
std::vector<char> *buffer = response->getResponseData();
printf("Http response,dump data:");
std::string result = "";
for (unsigned int i = 0; i < buffer->size(); i ++)
{
result += (*buffer)[i];
}

Json::Reader reader;
Json::Value root;
if ((!reader.parse(result, root, false)))
{
return;
}

std::string name = root["name"].asString();
std::string asString = root["summary"].asString();
CCLOG("name:%s, age:%d", name.c_str(), asString);

CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();
CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();

CCLabelTTF* pLabel = CCLabelTTF::create(name.c_str(), "Arial", 24);

// position the label on the center of the screen
pLabel->setPosition(ccp(visibleSize.width/2,
visibleSize.height/2));

// add the label as a child to this layer
this->addChild(pLabel, 1);
}

温馨提示：出现中文乱码。解决方式例如以下：

extension::CCHttpRequest post 
加上这段代码
/*std::vector<std::string> headers;
headers.push_back("Content-Type: application/json; charset=utf-8");
request->setHeaders(headers);*/

假设没有积分。能够增加群（QQ群号：436689827）索要源代码。

參考博客：

Cocos2dx 网络编程实战之星座运势

HTTP深入浅出 http请求

cocos2dx 网络编程（CCHttpRequest和CURL两个方式）