libghttp安装及使用封装案例（httpClient）

libghttp库下载地址：http://lfs.linuxsir.org/htdocs/blfscvs/gnome/libghttp.html
官方API参考文档：https://sourcecodebrowser.com/libghttp/1.0.9/ghttp_8h.html
将源码包下载下来，进入例行安装流程：
先解压：

tar -xzvf libghttp-1.0.9.tar.gzcd libghttp-1.0.9

安装：

./configuremakemake install

在安装的过程中可能会遇到一些问题：

checking host system type... Invalid configuration `x86_64-unknown-linux-gnu': machine `x86_64-unknown' not recognizedchecking build system type... Invalid configuration `x86_64-unknown-linux-gnu': machine `x86_64-unknown' not recognizedchecking for ranlib... ranlibchecking for ld used by GCC... /usr/bin/ldchecking if the linker (/usr/bin/ld) is GNU ld... yeschecking for BSD-compatible nm... /usr/bin/nm -Bchecking whether ln -s works... yesupdating cache ./config.cacheltconfig: you must specify a host type if you use `--no-verify'Try `ltconfig --help' for more information.configure: error: libtool configure failed

解决这个问题其实很简单：

# 首先查找一下config.guess和config.sub文件的目录find / -name config.guessfind / -name config.sub# 将查找出来的文件随便选择一个覆盖到软件目录cp /usr/share/automake-1.11/config.guess .cp /usr/share/automake-1.11/config.sub .如果找不到则：sudo apt-get install automake

下面是我自己封装的一个http客户端，拥有post和get方法：

头文件httpClient.h

/*========================================================= *文件名称:  httpClient.h *创建日期： 2017-7-6 *创建者  ： 冷月莫负      *修改记录： *  2017-7-6  created===========================================================*/#ifndef HTTPCLIENT_H  #define HTTPCLIENT_H  #include <map>#include <string>using namespace std;int Get(string url, string params, int timeout, string&result,map<string,string>&m) ;  int Post(string uri, string params, int timeout, string&result, map<string,string>&m) ;  #endif

cpp实现文件httpClient.cpp

#include "ghttp.h"  #include <stdio.h>  #include <string.h>  #include <stdlib.h>  #include <unistd.h>#include "httpClient.h"#include "ulaneLog.h"int Get(string url, string params, int timeout, string& result,map<string,string>&m) {      ghttp_status status;    char* temresult = NULL;    ghttp_request *request = NULL;      request = ghttp_request_new();      char szUrl[256];    memset(szUrl,0x00,sizeof(szUrl));    strcpy(szUrl,url.c_str());    if (ghttp_set_uri(request, szUrl) == -1)      {        ghttp_clean(request);         return -1;    }      if (ghttp_set_type(request, ghttp_type_get) == -1)      {        ghttp_clean(request);         return -1;      }    map<string,string>::iterator it = m.begin();    for(it;it!=m.end();it++)    {        ghttp_set_header(request, it->first.c_str(),it->second.c_str());    }    char timeout_str[10];      sprintf(timeout_str, "%d", timeout);      ghttp_set_header(request, http_hdr_Timeout, timeout_str);    ghttp_set_sync(request, ghttp_sync);        ghttp_prepare(request);    status=ghttp_process(request);    if (status == ghttp_error)    {        ghttp_request_destroy(request);        return -1;               }           temresult = ghttp_get_body(request);       result += temresult;    ghttp_request_destroy(request);    return 0;  }  int Post(string uri, string params, int timeout, string& result, map<string,string>&m) {      char* temresult = NULL;    ghttp_request *request = NULL;      ghttp_status status;      int len;    char szUri[256];    memset(szUri,0x00,sizeof(szUri));    strcpy(szUri,uri.c_str());    request = ghttp_request_new();      if (ghttp_set_uri(request, szUri) == -1)      {        ghttp_clean(request);         return -1;    }      if (ghttp_set_type(request, ghttp_type_post) == -1)      {        ghttp_clean(request);         return -1;      }    map<string,string>::iterator it = m.begin();    for(it;it!=m.end();it++)    {        ghttp_set_header(request, it->first.c_str(),it->second.c_str());    }    ghttp_set_sync(request, ghttp_sync);      char timeout_str[10];      sprintf(timeout_str, "%d", timeout);    ghttp_set_header(request, "Content-Type", "application/json");      ghttp_set_header(request, http_hdr_Timeout, timeout_str);      char szParams[8192];    memset(szParams,0x00,sizeof(szParams));    strcpy(szParams,params.c_str());    len = strlen(szParams);      ghttp_set_body(request, szParams, len); //      ghttp_prepare(request);      status = ghttp_process(request);      if (status == ghttp_error)      {        return -1;               }      result = ghttp_get_body(request); //test      temresult = ghttp_get_body(request);       result += temresult;    ghttp_request_destroy(request);     return 0;  }  

    post和get方法中最后一个参数是一个map<string,string>类型的map容器，使用的时候只需要将你要设置的header都已key:value的形式存到容器中，就都会被设置。

参考文章：
http://blog.csdn.net/earbao/article/details/39007549
http://www.phpjiayuan.com/109/270.html