Cocos2dx Curl 的导入使用 (libcurl.lib)

Cocos2dx curl 的导入使用 

cocos2dx第三方库里面有包含curl库

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1. 新建项目CurlDemo

 Additional Include Directories (C\C++ -> General)
   添加：$(EngineRoot)
        $(EngineRoot)external\curl\include\win32\curl
 Additional Libray Directories(Linker -> General)
        $(EngineRoot)external\curl\prebuilt\win32
 Additional Dependencies(Linker -> Input)
        libcurl_imp.lib
        websockets.lib
 //也可在头文件：#pragma  comment(lib,"libcurl_imp.lib")

2.直接在HelloWorldScene.cpp里面 插入代码：

头文件部分：

#include "cocos2d.h"
#include "curl\include\win32\curl\curl.h"
#include <string>
#pragma  comment(lib,"libcurl_imp.lib")

Request访问：

bool HelloWorld::init()
{
... ...
     /* 请求登陆 (curl) */
    //加载动态链接库  
/*    HINSTANCE  hinstance=NULL;  
    hinstance = LoadLibrary("D:\\cocos\\cocos2d-x-3.6\\external\\curl\\prebuilt\\libcurl.dll"); */ 
    CURL *curl;  
    CURLcode res;  
    
    std::string cc; 
    curl=curl_easy_init();  
    if(curl)  
    { 
        curl_easy_setopt(curl, CURLOPT_URL, "http://127.0.0.1:8080/hello/"); //设置请求的地址  
        curl_easy_setopt(curl, CURLOPT_POST, true); //设置数据类型
        std::string caozuo="";
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS,caozuo.c_str()); //将操作代码，和连接的网站组合，一起发送！ 
        curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writehtml); //数据处理回调函数  
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &cc);//缓冲的内存  
        curl_easy_setopt(curl, CURLOPT_TIMEOUT_MS, 5000);    //设置连接超时时间  

        res=curl_easy_perform(curl);  

        if(res!=CURLE_OK)  
        {  
            log("-----%d", res);
        }  
        curl_easy_cleanup(curl);  
    }  
    else  
    {  
        log("curl is null");  
    }  
    
    return true;
}

Response回调函数

USING_NS_CC;

... ...
// curl
size_t writehtml(uint8_t* ptr,size_t size,size_t number,void *stream)    
{     
    CCString* a=CCString::createWithFormat("%s",ptr);  
    std::string str1=a->getCString();
    //Json::Reader reader;//json解析  
    //Json::Value value;//表示一个json格式的对象  
    //if(reader.parse(str1,value))//解析出json放到json中区  
    //{  
    //    string out=value["gameId"].asString();    
    //    gameda->gameId=out;
    //    out=value["newIMSI"].asString();
    //    gameda->newIMSI=out;
    //}  
    log("--writehtml---%s", str1.c_str());
    return size*number;//这里一定要返回实际返回的字节数    
}

... ...
Scene* HelloWorld::createScene()
... ...

 

 

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