【标题】：在Windows下使用libcurl、curlpp
【关键字】：Windows,libcurl,curlpp
【来源】：http://www.cublog.cn/u/8780/showart.php?id=278339

在Windows下使用libcurl、curlpp

1. 下载libcurl、curlpp源代码

http://curl.haxx.se/

http://rrette.com/textpattern/index.php?s=cURLpp

例如下载

http://curl.haxx.se/download/curl-7.16.2.tar.bz2

http://rrette.com/files/curlpp/curlpp-0.7/curlpp-0.7.0.tar.gz

2. 下载zlib

http://www.zlib.net/

例如下载

http://www.zlib.net/zlib123-dll.zip

3. 编译OpenSSL

参考Windows下Openssl安装以及编程(Visual C++版)

4. 编译libcurl，以VS2005为例

将curl-7.16.2.tar.bz2解压到某目录，例如C:\curl，进入C:\curl\lib目录。

将zlib123-dll.zip解压到某目录，例如C:\zlib

设Openssl的目录为C:\openssl

进入Visual Studio 2005命令提示，进入C:\curl\lib

编译Debug版本。

set CFG=debug-dll-ssl-dll-zlib-dll

set OPENSSL_PATH=C:/openssl

set ZLIB_PATH=C:/zlib/include

nmake -f Makefile.vc8

其输出：libcurld_imp.lib, libcurld.dll

编译Release版本。

set CFG=release-dll-ssl-dll-zlib-dll

set OPENSSL_PATH=C:/openssl

set ZLIB_PATH=C:/zlib/include

nmake -f Makefile.vc8

其输出：libcurl_imp.lib, libcurl.dll

如果需要编译其他版本，可查看设定相应的CFG 参数即可。

5.编译curlpp

将curlpp-0.7.0.tar.gz解压到某目录，例如C:\curlpp\curlpp

set CFG=release

nmake -f Makefile.msvc

如果需要编译其他版本，可查看设定相应的CFG 参数即可。

需要注意的是可能需要对原文件进行一定的修改。

一种方案是：

修改Makefile.msvc中LIBCURL_PATH

修改dllfct.h关于CURLPPAPI的宏定义

#define CURLPPAPI

6.测试

在VS2005中新建一WIN32控制台工程。设置好Include Path和Lib Path

#include <iostream> #include <string> #include <queue> #include <boost/lexical_cast.hpp> #include <boost/regex.hpp> #include <boost/tuple/tuple.hpp> #include <curlpp/cURLpp.hpp> #include <curlpp/Easy.hpp> #include <curlpp/Options.hpp> #include <curlpp/Exception.hpp> #pragma comment(lib,"libcurlpp.lib") #pragma comment(lib,"libcurl_imp.lib") using namespace std; #define MAX_FILE_LENGTH 20000 class WriterMemoryClass { public: // Helper Class for reading result from remote host WriterMemoryClass(){ this->m_pBuffer = NULL; this->m_pBuffer = (char*) malloc(MAX_FILE_LENGTH * sizeof(char)); this->m_Size = 0; } ~WriterMemoryClass() { if (this->m_pBuffer) free(this->m_pBuffer); } void* Realloc(void* ptr, size_t size) { if(ptr) return realloc(ptr, size); else return malloc(size); } // Callback must be declared static, otherwise it won't link... size_t WriteMemoryCallback(char* ptr, size_t size, size_t nmemb) { // Calculate the real size of the incoming buffer size_t realsize = size * nmemb; // (Re)Allocate memory for the buffer m_pBuffer = (char*) Realloc(m_pBuffer, m_Size + realsize); // Test if Buffer is initialized correctly & copy memory if (m_pBuffer == NULL) { realsize = 0; } memcpy(&(m_pBuffer[m_Size]), ptr, realsize); m_Size += realsize; // return the real size of the buffer... return realsize; } // Public member vars char* m_pBuffer; size_t m_Size; }; int main(int argc,char * argv[]) { string list_base="http://blog.chinaunix.net/u/8780/article.php?frmid=0&page="; string art_base="http://blog.chinaunix.net/u/8780/showart.php?id="; boost::regex rexp("<a href=\"showart_([0-9]{6}).*?><font.*?>(.*?)</a>"); boost::regex fnp("[/\\:*?\"<>]"); typedef boost::tuple<string,string> element; queue<element> q; bool save=true; if(argc==1) save=false; try { cURLpp::Cleanup cleaner; cURLpp::Easy request; cURLpp::Easy handler; int i=0; bool cond=true; while(cond) { i++; cond=false; string list_url=list_base+boost::lexical_cast<string>(i); cerr<<list_url<<endl; // Get the content WriterMemoryClass mWriterChunk; // Set the writer callback to enable cURL to write result in a memory area cURLpp::Types::WriteFunctionFunctor functor(&mWriterChunk,&WriterMemoryClass::WriteMemoryCallback); cURLpp::Options::WriteFunction *test = new cURLpp::Options::WriteFunction(functor); request.setOpt(test); // Setting the URL to retrive. request.setOpt(new cURLpp::Options::Url(list_url)); //request.setOpt(new cURLpp::Options::Verbose(true)); request.perform(); //cout<<mWriterChunk.m_pBuffer<<endl; // Get the id and article name pairs string s=string(mWriterChunk.m_pBuffer); string::const_iterator it=s.begin(); string::const_iterator end=s.end(); boost::smatch m; while(boost::regex_search(it,end,m,rexp)) { cond=true; //cout<<m[1].str()<<" "<<m[2].str()<<endl; q.push(element(m[1].str(),m[2].str())); it=m[0].second; } } // Backup cerr<<"There are "<<i-1<<" Pages"<<endl; cout<<"<html>\n<head>"<<endl; cout<<"<title>Linxh's CUBlog List</title>"<<endl; cout<<"</head>\n<body>"<<endl; cout<<""<<endl; while(!q.empty()) { element e=q.front(); q.pop(); string art_url=art_base+e.get<0>(); string fname=boost::tuples::get<1>(e); cout<<"<a target=\"_blank\" href=\""<<art_url<<"\">"<<fname<<"</a> "<<endl; if(save) { fname=boost::regex_replace(fname,fnp,"_"); fname+=".html"; cerr<<"Saving "<<art_url<<" as file "<<fname.c_str()<<endl; FILE * fp=fopen(fname.c_str(),"wb"); if(fp==NULL) { cerr<<"Could not open file "<<fname.c_str()<<endl; cerr<<"Skipping"<<endl; continue; } cURLpp::OptionTrait< void *, CURLOPT_WRITEDATA > myData(fp); handler.setOpt(myData); // Setting the URL to retrive. handler.setOpt(new cURLpp::Options::Url(art_url)); //request.setOpt(new cURLpp::Options::Verbose(true)); handler.perform(); } } cout<<""<<endl; cout<<"</body>\n</html>"<<endl; } catch ( cURLpp::LogicError & e ) { std::cout << e.what() << std::endl; } catch ( cURLpp::RuntimeError & e ) { std::cout << e.what() << std::endl; } return 0; }