cocos2dx 实现简单的文件上传到php服务器的demo

最近刚写完一个cocos2dx，从客户端上传到php 服务器 的 简单 测试程序，代码可以复制直接运行 在阅读代码前最好可以先花点时间了解一点php 和libcurl的相关知识，并不会花费太长时间，由于我做的时候对php不是特别熟悉，所有使用libcurl拼凑表单的时候出现一

最近刚写完一个cocos2dx，从客户端上传到php服务器的简单测试程序，代码可以复制直接运行

在阅读代码前最好可以先花点时间了解一点php 和libcurl的相关知识，并不会花费太长时间，由于我做的时候对php不是特别熟悉，所有使用libcurl拼凑表单的时候出现一个问题，花了我一阵时间去解决。下方代码只是简单的demo,代码有些粗糙，但对于大家的理解应该影响不大

我使用XAMMP中的Apache服务器，php脚本放在\xampp\htdocs\目录下，并在当前目录创建upload文件夹用来存放上传的文件

1：

ReceiveFile.php

<?php /* 设定上传目录 */
    $dest_dir=&#39;./upload&#39;;
 
    /* 检测上传目录是否存在 */
    if( !is_dir($dest_dir) || !is_writeable($dest_dir) )
    {
        die("上传目录 ".$dest_dir." 不存在或无法写入");
    }
 
    /* 设置允许上传<strong>文件的类型 */
    $type=array("rar","zip","txt","c","JPG");
 
    /* 获取上传<strong>文件</strong>信息 */
   // $upfile=&$HTTP_POST_FILES['file'];
    $upfile=$_FILES["file"];
 
    echo "Upload: " . $_FILES["file"]["name"] . "<br>";
    echo "Type: " . $_FILES["file"]["type"] . "<br>";
    echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br>";
    echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";

 
    /* 获取<strong>文件</strong>后缀名函数 */
    function fileext($filename)
    {
        return substr(strrchr($filename, '.'), 1);
    }
    
		 //echo "Temp file: " .  fileext($upfile['name']   . "<br>";
		
    /* 判断上传<strong>文件</strong>类型 */
    if( !in_array( strtolower( fileext($upfile['name'] ) ),$type) )
     {
        $text=implode(",",$type);
        echo "对不起，您只能上传以下类型<strong>文件</strong>: ",$text,"<br>";
     }
     else
     {
        /* 设置<strong>文件</strong>名为"日期_<strong>文件</strong>名" */
        $dest=$dest_dir.'/'.date("ymdHis")."_".$upfile['name'];
 
        /* 移动上传<strong>文件</strong>到指定<strong>文件</strong>夹 */
        $state=move_uploaded_file($upfile['tmp_name'],$dest);
 
        if ($state)
        {
            print("<strong>文件</strong>上传成功!<br>");
            print("<strong>文件</strong>名：".$dest."<br>");
            print("上传的<strong>文件</strong>大小：".( round($upfile['size'] / 1024,2) )." KB<br>");
        }
        else
        {
            /* 处理错误信息 */
            switch($upfile['error'])
            {
                case 1 : die("上传<strong>文件</strong>大小超出 php.ini:upload_max_filesize 限制<br>");
                case 2 : die("上传<strong>文件</strong>大小超出 MAX_FILE_SIZE 限制<br>");
                case 3 : die("<strong>文件</strong>仅被部分上传<br>");
                case 4 : die("没有<strong>文件</strong>被上传<br>");
                case 5 : die("找不到临时<strong>文件</strong>夹<br>");
                case 6 : die("<strong>文件</strong>写入失败<br>");
            }
        }
     }
 
?>

2：

upload.html 表单:

可以直接运行upload.html,如http://127.0.0.1/WD/upload.html

则会出现页面，选择相应的文件上传则会提示

注：php页面会有上传大小超过1M的限制

3：

接下来就要最重要的部分了，使用libcurl库来实现upload.html表单，实现上传功能

Httpupload.h

#ifndef COMMON_LINUX_HTTP_UPLOAD_H__
#define COMMON_LINUX_HTTP_UPLOAD_H__

#include <map>
#include <string>

using std::map;

class HTTPUpload {
<span><br>
Httpupload.cpp<br>


<pre class="brush:php;toolbar:false">#include <assert.h>
#include <curl>
#include <curl>
#include <stdio.h>
#include <vector>
#include "stdafx.h"
#include "HttpUpload.h"

using namespace cocos2d;
using namespace std;

// Callback to get the response data from server.
static size_t WriteCallback(void *ptr, size_t size,
                            size_t nmemb, void *userp) {
  if (!userp)
    return 0;

  string *response = reinterpret_cast<string>(userp);
  size_t real_size = size * nmemb;
  response->append(reinterpret_cast<char>(ptr), real_size);
  std::cout  ¶meters,
                             const string &upload_file,		//"E:\\install.res.1041.zip"
                             const string &file_part_name,	//"upload_file_minidump",
                             const string &proxy,
                             const string &proxy_user_pwd,
                             const string &ca_certificate_file,
                             string *response_body,
                             long *response_code,
                             string *error_description) {
  if (response_code != NULL)
    *response_code = 0;

  if (!CheckParameters(parameters))
    return false;

curl_global_init(CURL_GLOBAL_ALL);

  CURL *curl = curl_easy_init();
  if (error_description != NULL)
    *error_description = "No Error";

  if (!curl) {
    return false;
  }

  CURLcode err_code = CURLE_OK;

  (curl_easy_setopt)(curl, CURLOPT_URL, url.c_str());
  (curl_easy_setopt)(curl, CURLOPT_USERAGENT, kUserAgent);
  // Set proxy information if necessary.
  if (!proxy.empty())
    (curl_easy_setopt)(curl, CURLOPT_PROXY, proxy.c_str());
  if (!proxy_user_pwd.empty())
    (curl_easy_setopt)(curl, CURLOPT_PROXYUSERPWD, proxy_user_pwd.c_str());

  if (!ca_certificate_file.empty())
    (curl_easy_setopt)(curl, CURLOPT_CAINFO, ca_certificate_file.c_str());

  struct curl_httppost *formpost = NULL;
  struct curl_httppost *lastptr = NULL;

  // Add form file.
  (curl_formadd)(&formpost, &lastptr,
	       CURLFORM_COPYNAME, "file",
               CURLFORM_FILE, upload_file.c_str(),
               CURLFORM_END);

  (curl_easy_setopt)(curl, CURLOPT_HTTPPOST, formpost);

  curl_formadd(&formpost,
				   &lastptr,
				   CURLFORM_COPYNAME, "submit",
				   CURLFORM_COPYCONTENTS, "send",
				   CURLFORM_END);



  // Disable 100-continue header.
  struct curl_slist *headerlist = NULL;
  char buf[] = "Expect:";
 // struct curl_slist* (curl_slist_append)(struct curl_slist *, const char *);
  //*(void**) (&curl_slist_append) = dlsym(curl_lib, "curl_slist_append");
  headerlist = (curl_slist_append)(headerlist, buf);
  (curl_easy_setopt)(curl, CURLOPT_HTTPHEADER, headerlist);

  if (response_body != NULL) {
    (curl_easy_setopt)(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
    (curl_easy_setopt)(curl, CURLOPT_WRITEDATA,
                     reinterpret_cast<void>(response_body));
  }

  // Fail if 400+ is returned from the web server.
  (curl_easy_setopt)(curl, CURLOPT_FAILONERROR, 1);

  err_code = (curl_easy_perform)(curl);
  if (response_code != NULL) {
    (curl_easy_getinfo)(curl, CURLINFO_RESPONSE_CODE, response_code);
  }

  if (error_description != NULL)
    *error_description = (curl_easy_strerror)(err_code);

  (curl_easy_cleanup)(curl);
  if (formpost != NULL) {
    (curl_formfree)(formpost);
  }
  if (headerlist != NULL) {

    (curl_slist_free_all)(headerlist);
  }
 // dlclose(curl_lib);
  return err_code == CURLE_OK;
}

// static
bool HTTPUpload::CheckParameters(const map<string string> ¶meters) {
  for (map<string string>::const_iterator pos = parameters.begin();
       pos != parameters.end(); ++pos) {
    const string &str = pos->first;
    if (str.size() == 0)
      return false;  // disallow empty parameter names
    for (unsigned int i = 0; i  127) {
        return false;
      }
    }
  }
  return true;
}


//重写把数据读入上传数据流函数   
size_t write_data(void *buffer, size_t size, size_t nmemb, void *userp) {
	FILE *fptr = (FILE*)userp;
	size_t m_size = fread(buffer, size, nmemb, fptr);
	return m_size;
} 
</string></string></void></char></string></vector></stdio.h></curl></curl></assert.h>

在任意地方调用下方代码，则实现将 E:\\3.0.25.63.zip 文件上传到php服务器的upload目录下

		CCLOG("################################################################################################ Begin send dump file");
		string strPath = "E:\\3.0.25.63.zip";
		std::map<string string> parameters;
		string response, error;
		const char * url = "http://127.0.0.1/WD/ReceiveFile.php";
		bool success = HTTPUpload::SendRequest(url,
			parameters,
			strPath.c_str(),
			//"upload_file_minidump",
			"",
			"","","",
			&response,
			NULL,
			&error);</string>

以上代码是个简单的demo,代码相当粗糙，但应该对大家的理解影响不打，代码还有很大的优化空间，大家可以进行优化和扩展空间，期望大家一起完善！