使用CCHttpClient进行cocos2d-x网络编程

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使用CCHttpClient进行cocos2d-x网络编程       

        分类:            Cocos2D-X2017人阅读评论(3)收藏举报
网络编程Cocos2d-x


    在我使用的cocos2d-x版本(2.1.2)中,已经将curl融进cocos2d-x框架中。下面动手写个简单的网络程序。

   首先创建一个cocos2d-x项目。

    然后我创建了一个网络连接的类,名叫HttpNetConn。其继承自CCObject,管理网络连接的相应功能。

   

[cpp] view plaincopyprint?
  1. /*
  2. * 网络连接模块
  3. * NetConnect.h
  4. *
  5. * Created by fansy [2013-6-30]
  6. */ 
  7.  
  8.  
  9. #ifndef _NET_CONNECTION_H_ 
  10. #define _NET_CONNECTION_H_ 
  11.  
  12. #include <cocos2d.h> 
  13.  
  14. USING_NS_CC; 
  15.  
  16. class NetConnect: public CCObject 
  17. public
  18.     CREATE_FUNC(NetConnect); 
  19.  
  20.     virtual bool init(); 
  21.  
  22.     void getData(); 
  23.  
  24.     void httpReqFinished(CCNode* node,CCObject* obj); 
  25.  
  26. }; 
  27.  
  28.  
  29. #endif 
/* * 网络连接模块 * NetConnect.h *  * Created by fansy [2013-6-30] */#ifndef _NET_CONNECTION_H_#define _NET_CONNECTION_H_#include <cocos2d.h>USING_NS_CC;class NetConnect: public CCObject{public:CREATE_FUNC(NetConnect);virtual bool init();void getData();void httpReqFinished(CCNode* node,CCObject* obj);};#endif

    其中,getData()是向服务器发请求,httpReqFinished是服务器响应的应答。

    好,接下来,动手实现。

    首先,CCHttpClient在extition中,如果你的包含目录和我一样,没有这个,就要在项目属性->c/c++->附加包含目录中添加:$(SolutionDir)\extensions 此项(具体位置可能和我的有些不一样)。并在其NetConnection.cpp的头文件处加上:

[cpp] view plaincopyprint?
  1. #include "cocos-ext.h" 
  2. #include "../extensions/network/HttpClient.h" 
  3. #include "../extensions/network/HttpRequest.h" 
  4.  
  5. USING_NS_CC_EXT; 
#include "cocos-ext.h"#include "../extensions/network/HttpClient.h"#include "../extensions/network/HttpRequest.h"USING_NS_CC_EXT;

    接下来,写getData函数:

[cpp] view plaincopyprint?
  1. void NetConnect::getData() 
  2.     CCHttpClient* httpClient = CCHttpClient::getInstance(); 
  3.  
  4.     CCHttpRequest* httpReq =new CCHttpRequest(); 
  5.  
  6.     httpReq->setRequestType(CCHttpRequest::kHttpGet); 
  7.     httpReq->setUrl("http://www.baidu.com"); 
  8.     httpReq->setResponseCallback(this,callfuncND_selector(NetConnect::httpReqFinished)); 
  9.     httpReq->setTag("FirstNet"); 
  10.     httpClient->setTimeoutForConnect(30); 
  11.     httpClient->send(httpReq); 
  12.  
  13.     httpReq->release(); 
  14.  
void NetConnect::getData(){CCHttpClient* httpClient = CCHttpClient::getInstance();CCHttpRequest* httpReq =new CCHttpRequest();httpReq->setRequestType(CCHttpRequest::kHttpGet);httpReq->setUrl("http://www.baidu.com");httpReq->setResponseCallback(this,callfuncND_selector(NetConnect::httpReqFinished));httpReq->setTag("FirstNet");httpClient->setTimeoutForConnect(30);httpClient->send(httpReq);httpReq->release();}

   觉得逻辑很清晰,就不细解释了。然后是回调函数:

[cpp] view plaincopyprint?
  1. void NetConnect::httpReqFinished( CCNode* node,CCObject* obj ) 
  2.     CCHttpResponse* response = (CCHttpResponse*)obj; 
  3.     if (!response->isSucceed()) 
  4.     { 
  5.         CCLog("Receive Error! %s\n",response->getErrorBuffer()); 
  6.         return ;  
  7.     } 
  8.  
  9.     const char* tag = response->getHttpRequest()->getTag(); 
  10.     if ( 0 == strcmp("FirstNet",tag)) 
  11.     { 
  12.         std::vector<char> *data = response->getResponseData(); 
  13.         int data_length =  data->size(); 
  14.         std::string res; 
  15.         for (int i = 0;i<data_length;++i) 
  16.         { 
  17.             res+=(*data)[i]; 
  18.         } 
  19.         res+='\0'
  20.         CCLog("%s",res.c_str()); 
  21.     } 
void NetConnect::httpReqFinished( CCNode* node,CCObject* obj ){CCHttpResponse* response = (CCHttpResponse*)obj;if (!response->isSucceed()){CCLog("Receive Error! %s\n",response->getErrorBuffer());return ; }const char* tag = response->getHttpRequest()->getTag();if ( 0 == strcmp("FirstNet",tag)){std::vector<char> *data = response->getResponseData();int data_length =  data->size();std::string res;for (int i = 0;i<data_length;++i){res+=(*data)[i];}res+='\0';CCLog("%s",res.c_str());}}

    ok,F7编译。发现缺少库:

[plain] view plaincopyprint?
  1. 1>  NetConnect.cpp 
  2. 1>NetConnect.obj : error LNK2019: 无法解析的外部符号 "public: static class cocos2d::extension::CCHttpClient * __cdecl cocos2d::extension::CCHttpClient::getInstance(void)" (?getInstance@CCHttpClient@extension@cocos2d@@SAPAV123@XZ),该符号在函数 "public: void __thiscall NetConnect::getData(void)" (?getData@NetConnect@@QAEXXZ) 中被引用 
  3. 1>NetConnect.obj : error LNK2019: 无法解析的外部符号 "public: void __thiscall cocos2d::extension::CCHttpClient::send(class cocos2d::extension::CCHttpRequest *)" (?send@CCHttpClient@extension@cocos2d@@QAEXPAVCCHttpRequest@23@@Z),该符号在函数 "public: void __thiscall NetConnect::getData(void)" (?getData@NetConnect@@QAEXXZ) 中被引用 
  4. 1>D:\Code\UseLess\HelloCSDN\Debug.win32\HelloCSDN.win32.exe : fatal error LNK1120: 2 个无法解析的外部命令 
1>  NetConnect.cpp1>NetConnect.obj : error LNK2019: 无法解析的外部符号 "public: static class cocos2d::extension::CCHttpClient * __cdecl cocos2d::extension::CCHttpClient::getInstance(void)" (?getInstance@CCHttpClient@extension@cocos2d@@SAPAV123@XZ),该符号在函数 "public: void __thiscall NetConnect::getData(void)" (?getData@NetConnect@@QAEXXZ) 中被引用1>NetConnect.obj : error LNK2019: 无法解析的外部符号 "public: void __thiscall cocos2d::extension::CCHttpClient::send(class cocos2d::extension::CCHttpRequest *)" (?send@CCHttpClient@extension@cocos2d@@QAEXPAVCCHttpRequest@23@@Z),该符号在函数 "public: void __thiscall NetConnect::getData(void)" (?getData@NetConnect@@QAEXXZ) 中被引用1>D:\Code\UseLess\HelloCSDN\Debug.win32\HelloCSDN.win32.exe : fatal error LNK1120: 2 个无法解析的外部命令

   缺少libExtensions.lib库,加上。在项目属性->链接器->附加依赖项中添加:libExtensions.lib。再编译。

    额...似乎还缺:

[plain] view plaincopyprint?
  1. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_create,该符号在函数 "private: bool __thiscall cocos2d::extension::CCHttpClient::lazyInitThreadSemphore(void)" (?lazyInitThreadSemphore@CCHttpClient@extension@cocos2d@@AAE_NXZ) 中被引用 
  2. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_detach,该符号在函数 "private: bool __thiscall cocos2d::extension::CCHttpClient::lazyInitThreadSemphore(void)" (?lazyInitThreadSemphore@CCHttpClient@extension@cocos2d@@AAE_NXZ) 中被引用 
  3. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_exit,该符号在函数 "void * __cdecl cocos2d::extension::networkThread(void *)" (?networkThread@extension@cocos2d@@YAPAXPAX@Z) 中被引用 
  4. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_mutex_init,该符号在函数 "private: bool __thiscall cocos2d::extension::CCHttpClient::lazyInitThreadSemphore(void)" (?lazyInitThreadSemphore@CCHttpClient@extension@cocos2d@@AAE_NXZ) 中被引用 
  5. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_mutex_destroy,该符号在函数 "void * __cdecl cocos2d::extension::networkThread(void *)" (?networkThread@extension@cocos2d@@YAPAXPAX@Z) 中被引用 
  6. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_mutex_lock,该符号在函数 "private: void __thiscall cocos2d::extension::CCHttpClient::dispatchResponseCallbacks(float)" (?dispatchResponseCallbacks@CCHttpClient@extension@cocos2d@@AAEXM@Z) 中被引用 
  7. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_mutex_unlock,该符号在函数 "private: void __thiscall cocos2d::extension::CCHttpClient::dispatchResponseCallbacks(float)" (?dispatchResponseCallbacks@CCHttpClient@extension@cocos2d@@AAEXM@Z) 中被引用 
  8. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__sem_init,该符号在函数 "private: bool __thiscall cocos2d::extension::CCHttpClient::lazyInitThreadSemphore(void)" (?lazyInitThreadSemphore@CCHttpClient@extension@cocos2d@@AAE_NXZ) 中被引用 
  9. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__sem_destroy,该符号在函数 "void * __cdecl cocos2d::extension::networkThread(void *)" (?networkThread@extension@cocos2d@@YAPAXPAX@Z) 中被引用 
  10. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__sem_wait,该符号在函数 "void * __cdecl cocos2d::extension::networkThread(void *)" (?networkThread@extension@cocos2d@@YAPAXPAX@Z) 中被引用 
  11. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__sem_post,该符号在函数 "private: virtual __thiscall cocos2d::extension::CCHttpClient::~CCHttpClient(void)" (??1CCHttpClient@extension@cocos2d@@EAE@XZ) 中被引用 
  12. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_slist_append,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用 
  13. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_slist_free_all,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用 
  14. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_init,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用 
  15. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_setopt,该符号在函数 "bool __cdecl cocos2d::extension::configureCURL(void *)" (?configureCURL@extension@cocos2d@@YA_NPAX@Z) 中被引用 
  16. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_perform,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用 
  17. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_cleanup,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用 
  18. 1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_getinfo,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用 
1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_create,该符号在函数 "private: bool __thiscall cocos2d::extension::CCHttpClient::lazyInitThreadSemphore(void)" (?lazyInitThreadSemphore@CCHttpClient@extension@cocos2d@@AAE_NXZ) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_detach,该符号在函数 "private: bool __thiscall cocos2d::extension::CCHttpClient::lazyInitThreadSemphore(void)" (?lazyInitThreadSemphore@CCHttpClient@extension@cocos2d@@AAE_NXZ) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_exit,该符号在函数 "void * __cdecl cocos2d::extension::networkThread(void *)" (?networkThread@extension@cocos2d@@YAPAXPAX@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_mutex_init,该符号在函数 "private: bool __thiscall cocos2d::extension::CCHttpClient::lazyInitThreadSemphore(void)" (?lazyInitThreadSemphore@CCHttpClient@extension@cocos2d@@AAE_NXZ) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_mutex_destroy,该符号在函数 "void * __cdecl cocos2d::extension::networkThread(void *)" (?networkThread@extension@cocos2d@@YAPAXPAX@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_mutex_lock,该符号在函数 "private: void __thiscall cocos2d::extension::CCHttpClient::dispatchResponseCallbacks(float)" (?dispatchResponseCallbacks@CCHttpClient@extension@cocos2d@@AAEXM@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__pthread_mutex_unlock,该符号在函数 "private: void __thiscall cocos2d::extension::CCHttpClient::dispatchResponseCallbacks(float)" (?dispatchResponseCallbacks@CCHttpClient@extension@cocos2d@@AAEXM@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__sem_init,该符号在函数 "private: bool __thiscall cocos2d::extension::CCHttpClient::lazyInitThreadSemphore(void)" (?lazyInitThreadSemphore@CCHttpClient@extension@cocos2d@@AAE_NXZ) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__sem_destroy,该符号在函数 "void * __cdecl cocos2d::extension::networkThread(void *)" (?networkThread@extension@cocos2d@@YAPAXPAX@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__sem_wait,该符号在函数 "void * __cdecl cocos2d::extension::networkThread(void *)" (?networkThread@extension@cocos2d@@YAPAXPAX@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__sem_post,该符号在函数 "private: virtual __thiscall cocos2d::extension::CCHttpClient::~CCHttpClient(void)" (??1CCHttpClient@extension@cocos2d@@EAE@XZ) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_slist_append,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_slist_free_all,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_init,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_setopt,该符号在函数 "bool __cdecl cocos2d::extension::configureCURL(void *)" (?configureCURL@extension@cocos2d@@YA_NPAX@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_perform,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_cleanup,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用1>libExtensions.lib(HttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp__curl_easy_getinfo,该符号在函数 "int __cdecl cocos2d::extension::processGetTask(class cocos2d::extension::CCHttpRequest *,unsigned int (__cdecl*)(void *,unsigned int,unsigned int,void *),void *,int *)" (?processGetTask@extension@cocos2d@@YAHPAVCCHttpRequest@12@P6AIPAXII1@Z1PAH@Z) 中被引用

   再按之前的方法加入:libcurl_imp.lib、pthreadVCE2.lib 这两个库。再编译,走你。

    终于行了。

    接下来把它加到程序中。先在HelloWorldScene中加入NetConnect.h头文件。我更改了右下角的那个CCMenuItem的响应。

[cpp] view plaincopyprint?
  1. void HelloWorld::menuCloseCallback(CCObject* pSender) 
  2.     // "close" menu item clicked 
  3.     //CCDirector::sharedDirector()->end(); 
  4.     NetConnect* nc = NetConnect::create(); 
  5.     nc->getData(); 
void HelloWorld::menuCloseCallback(CCObject* pSender){    // "close" menu item clicked    //CCDirector::sharedDirector()->end();NetConnect* nc = NetConnect::create();nc->getData();}

    运行程序,点击右下角的按钮。看输出日志。打出了我们想要的东西。


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