VC编写自己构造http协议数据的post上传图片类(MFC环境 带编码转换)(转)
上次用VC写了个MFC环境下的post数据类,地址:
/Html/diannaojishu/2009-10/4905858580.html
这次将这个类进行扩展,可以post图片。但这两个post所使用的方法不一样。
post数据,是直接在http协议头将Content-Type设为application/x-www-form-urlencoded,这样 服务器会将提交的数据,当作表单数据处理。发送的数据格式也为:userid=lilu&data=post图片类&name=天漏客。 而post图片则是自己构造http协议数据,将http协议头的Content-Type设为multipart/form-data,同时还要加上 boundary=xxxxxxx(xxxxxxx表示一个字符串),后面的协议数据内容将要以这个xxxxxxx来进行分隔。发送的数据格式为:
---------------2389jhrwfjsjd9823
Content-Disposition: form-data; name="userid"
27EF272F28239E5A34EE223FADFWAFAEaE
类源码下载:[点击浏览该文件:SendData类源码.rar]
实例源码下载:[点击浏览该文件:UploadPhoto实例加源码.rar]
首先说一下本类的方便之处。
1、使用方便,步骤简单。
2、发送图片时,还可以构造其他数据。
3、兼容_MBCS和_UNICODE模式,并且能使用GB2312和UTF8两种编码进行发送与接收,类自动实现转换。
首先说一下这个类的使用,方法比较简单。
1、在工程中加入SendData.h和SendData.cpp文件,然后包含头文件,就可以定义类。
CSendData MySend;
2、设置服务器参数。
MySend.SetServerParam(_T(www.lilu.name),_T("/posttest.asp"),80);
3、如果同时要包含数据,就要先构造数据。
MySend.MakePostData(_T("userid"),_T("lilu"));
MySend.MakePostData(_T("name"),_T("天漏客"));
MySend.MakePostData(_T("homepage"),_T(www.lilu.name));
4、发送图片。定义好接收数据的指针,以及发送和接收的编码。
TCHAR *pRecvData = NULL; //接收数据的指针
DWORD dwRecvSize = 0; //接收数据的大小
DWORD dwRetSend = 0; //发送函数返回值
int SendCode = HTTP_POST_GB2312,RecvCode =HTTP_POST_GB2312; //发送与接收的编码
dwRetSend = MySend.PostPicDataMethod(_T("c:\\pic\\测试图片.jpg"),_T("filename"),
&pRecvData,dwRecvSize,
SendCode,RecvCode);
//处理接收数据,返回值。
//99:图片不存在
//100:正常成功
//101:服务器无法连接
//102:提交页面无法打开
//103:数据发送失败
//104:服务器处理失败
//500:异常错误
5、处理结果
类自动的根据编译环境,将返回指针转换为LPTSTR类型,所以你只需要定义一个LPTSTR类型的指针,将其地址传递给发送函数即可。类会自己分 配内存存储返回的结果,并且会自动释放。所以使用时要注意,当这个类的作用域结束时,相应的接收数据内存也会释放掉,你可以将接收数据另拷贝一份,或者在 它的作用域内处理掉也可。
CString strRecv(pRecvData); //将接收数据复制到strRecv中。
6、完毕。
测试一下啊!界面如下:
- 我本地IIS假设服务器,写入上传代码。然后使用软件提交,抓包如下:
- POST /upload.asp HTTP/1.1
- Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/xaml+xml,*/*
- Accept-Encoding: gzip, deflate
- Accept-Language: zh-cn
- Content-Type: multipart/form-data; boundary=-------------2389jhrwfjsjd9823
- Cache-Control: no-cache
- User-Agent: UploadPhoto
- Host: 192.168.2.111
- Content-Length: 39725
- ---------------2389jhrwfjsjd9823
- Content-Disposition: form-data; name="Crypt"
- 10
- ---------------2389jhrwfjsjd9823
- Content-Disposition: form-data; name="type"
- 200
- ---------------2389jhrwfjsjd9823
- Content-Disposition: form-data; name="userid"
- 27EF272F28239E5A34EE223FADFWAFAEaE
- ---------------2389jhrwfjsjd9823
- Content-Disposition: form-data; name="filename"; filename="D:\Lilu.Other\QQ图片\软件工程图解.jpg"
- Content-Type: image/pjpeg
- ……………………省略图片二进制数据………………
- ---------------2389jhrwfjsjd9823
- Content-Disposition: form-data; name="Submit"
- submit
- ---------------2389jhrwfjsjd9823--
- 这就是整个软件发送的数据,懂http协议的话,很容易理解这些数据。服务器返回:
- HTTP/1.1 200 OK
- Server: Microsoft-IIS/5.1
- Date: Wed, 04 Nov 2009 02:48:12 GMT
- Content-Length: 171
- Content-Type: text/html
- Set-Cookie: ASPSESSIONIDSCRSBCRQ=ACBHPAHADINHKHIANAALFKOO; path=/
- Cache-control: private
- <html>
- <head>
- <title>文件上传</title>
- </head>
- <body>
- <font size=2>文件上传成功 [ <a href=# onclick=history.go(-1)>继续上传</a> ]</font>
- </body>
- </html>
- 最后贴一下这个类的源代码:
- =======================================================
- 首先是头文件:SendData.h
- // SendData.h: interface for the CSendData class.
- //
- //////////////////////////////////////////////////////////////////////
- #if !defined(AFX_SENDDATA_H__F98D6FB7_D797_4947_A17E_13E88D20F35F__INCLUDED_)
- #define AFX_SENDDATA_H__F98D6FB7_D797_4947_A17E_13E88D20F35F__INCLUDED_
- #if _MSC_VER > 1000
- #pragma once
- #endif // _MSC_VER > 1000
- #include <afxinet.h>
- #include <string>
- using std::string;
- #define HTTP_POST_GB2312 1 //发送和接收的网页编码
- #define HTTP_POST_UTF8 2
- class CSendData
- {
- public:
- CSendData();
- virtual ~CSendData();
- void SetServerParam(TCHAR ServerName[100],TCHAR ObjectName[100],WORD Port);
- //构造协议数据内容
- BOOL MakePostData(LPCTSTR pPostName, LPCTSTR pPostValue);
- BOOL MakePostData(LPCTSTR pPostName,int iPostValue);
- //发送带图片的数据
- DWORD PostPicDataMethod(TCHAR PicPath[MAX_PATH],LPCTSTR pPostName,
- LPTSTR *pRecvData, DWORD &RecvSize,
- int SendCode = HTTP_POST_GB2312,//发送和接收的编码
- int RecvCode = HTTP_POST_GB2312);
- //发送文本类数据
- DWORD PostDataMethod(LPCTSTR strDataSend, int DataSize,
- LPTSTR *pRecvData, DWORD &RecvSize,
- int SendCode = 1,int RecvCode = 1);
- private:
- CString m_strBoundary; //数据分隔符
- CString m_strHeaderData; //协议头数据
- CString m_strPostData; //协议正文数据
- CString m_strEndData; //协议尾数据
- void MakeHeaderData(); //构造协议头部数据
- void MakeEndData(); //构造协议尾部数据
- void MakePostPicData(LPCTSTR pPostName, LPCTSTR pPostValue); //构造图片前缀数据
- //返回值为图片大小,返回值为0表示不存在。
- DWORD GetExistPic(TCHAR PicPath[MAX_PATH]);
- //服务器参数
- INTERNET_PORT m_nPort;
- TCHAR m_tzObjectName[100];
- TCHAR m_tzServerName[100];
- /////编码转换/////////////////////////////////////////////////////////////
- char * m_lpUTF8; //UTF8编码缓存指针
- char * m_lpMultiByte; //Multil多字节编码指针
- wchar_t * m_wpWideChar; //Widechar编码缓存指针
- int m_nUTF8Len;
- int m_nMultiByteLen;
- int m_nWideCharLen;
- void WideCharToUTF8(LPCWSTR wpWideData, int WideLen);
- void MultiByteToUTF8(LPCSTR lpMultiData, int MultiLen);
- void UTF8ToWideChar(LPCSTR pUTF8,int UTF8Len);
- void UTF8ToMultiByte(LPCSTR pUTF8, int UTF8Len);
- void MultiToWide(LPCSTR strDataSend, int DataSize);
- void MultiToMulti(LPCSTR strDataSend, int DataSize);
- void WideToMulti(LPCWSTR wpWideData, int WideLen);
- };
- #endif // !defined(AFX_SENDDATA_H__F98D6FB7_D797_4947_A17E_13E88D20F35F__INCLUDED_)
- ========================================================
- 接着是SendData.cpp文件。
- // UploadPhotoDlg.cpp : implementation file
- //
- #include "stdafx.h"
- #include "UploadPhoto.h"
- #include "UploadPhotoDlg.h"
- #include "SendData.h"
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- /////////////////////////////////////////////////////////////////////////////
- // CUploadPhotoDlg dialog
- CUploadPhotoDlg::CUploadPhotoDlg(CWnd* pParent /*=NULL*/)
- : CDialog(CUploadPhotoDlg::IDD, pParent)
- {
- //{{AFX_DATA_INIT(CUploadPhotoDlg)
- m_strPhotoPath = _T("");
- m_nPort = 80;
- m_strRecvData = _T("");
- // m_strObjectName = _T("/frontend_dev.php/device/retriever");
- // m_strServerName = _T("trunk.xunhui1.net");
- m_strObjectName = _T("/upload.asp");
- m_strServerName = _T("192.168.2.111");
- m_PostName = _T("userid");
- m_PostValue = _T("27EF272F28239E5A34EE223FADFWAFAEaE");
- //}}AFX_DATA_INIT
- // Note that LoadIcon does not require a subsequent DestroyIcon in Win32
- m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
- }
- void CUploadPhotoDlg::DoDataExchange(CDataExchange* pDX)
- {
- CDialog::DoDataExchange(pDX);
- //{{AFX_DATA_MAP(CUploadPhotoDlg)
- DDX_Text(pDX, IDC_EDIT_OBJECTNAME, m_strObjectName);
- DDX_Text(pDX, IDC_EDIT_PHOTOPATH, m_strPhotoPath);
- DDX_Text(pDX, IDC_EDIT_PORT, m_nPort);
- DDX_Text(pDX, IDC_EDIT_RECVDATA, m_strRecvData);
- DDX_Text(pDX, IDC_EDIT_SERVERNAME, m_strServerName);
- DDX_Text(pDX, IDC_EDIT_POSTDATANAME, m_PostName);
- DDX_Text(pDX, IDC_EDIT_POSTDATAVALUE, m_PostValue);
- //}}AFX_DATA_MAP
- }
- BEGIN_MESSAGE_MAP(CUploadPhotoDlg, CDialog)
- //{{AFX_MSG_MAP(CUploadPhotoDlg)
- ON_WM_PAINT()
- ON_WM_QUERYDRAGICON()
- ON_BN_CLICKED(IDC_BTN_SEND, OnBtnSend)
- ON_BN_CLICKED(IDC_BTN_FILEOPEN, OnBtnFileopen)
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CUploadPhotoDlg message handlers
- BOOL CUploadPhotoDlg::OnInitDialog()
- {
- CDialog::OnInitDialog();
- // Set the icon for this dialog. The framework does this automatically
- // when the application's main window is not a dialog
- SetIcon(m_hIcon, TRUE); // Set big icon
- SetIcon(m_hIcon, FALSE); // Set small icon
- // TODO: Add extra initialization here
- ((CButton*)GetDlgItem(IDC_RADIO_SENDGB2312))->SetCheck(TRUE);
- ((CButton*)GetDlgItem(IDC_RADIO_RECVGB2312))->SetCheck(TRUE);
- return TRUE; // return TRUE unless you set the focus to a control
- }
- // If you add a minimize button to your dialog, you will need the code below
- // to draw the icon. For MFC applications using the document/view model,
- // this is automatically done for you by the framework.
- void CUploadPhotoDlg::OnPaint()
- {
- if (IsIconic())
- {
- CPaintDC dc(this); // device context for painting
- SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
- // Center icon in client rectangle
- int cxIcon = GetSystemMetrics(SM_CXICON);
- int cyIcon = GetSystemMetrics(SM_CYICON);
- CRect rect;
- GetClientRect(&rect);
- int x = (rect.Width() - cxIcon + 1) / 2;
- int y = (rect.Height() - cyIcon + 1) / 2;
- // Draw the icon
- dc.DrawIcon(x, y, m_hIcon);
- }
- else
- {
- CDialog::OnPaint();
- }
- }
- // The system calls this to obtain the cursor to display while the user drags
- // the minimized window.
- HCURSOR CUploadPhotoDlg::OnQueryDragIcon()
- {
- return (HCURSOR) m_hIcon;
- }
- void CUploadPhotoDlg::OnBtnSend()
- {
- // TODO: Add your control notification handler code here
- GetDlgItem(IDC_BTN_SEND)->EnableWindow(FALSE);
- UpdateData(TRUE);
- //定义发送类
- CSendData MySend;
- TCHAR *pRecvData = NULL; //接收数据的指针
- DWORD dwRecvSize = 0; //接收数据的大小
- DWORD dwRetSend = 0; //发送函数返回值
- int SendCode = HTTP_POST_GB2312,RecvCode =HTTP_POST_GB2312; //发送与接收的编码
- //设置服务器参数
- MySend.SetServerParam((LPTSTR)(LPCTSTR)m_strServerName,(LPTSTR)(LPCTSTR)m_strObjectName,m_nPort);
- //确定发送方法
- if (1 == ((CButton*)GetDlgItem(IDC_RADIO_SENDGB2312))->GetCheck())
- {
- SendCode = HTTP_POST_GB2312;
- }
- else
- {
- SendCode = HTTP_POST_UTF8;
- }
- //确定接收编码
- if (1 == ((CButton*)GetDlgItem(IDC_RADIO_RECVGB2312))->GetCheck())
- {
- RecvCode = HTTP_POST_GB2312;
- }
- else
- {
- RecvCode = HTTP_POST_UTF8;
- }
- //必须先构造数据包
- MySend.MakePostData(_T("Crypt"),_T("10"));
- MySend.MakePostData(_T("type"),_T("200"));
- MySend.MakePostData(m_PostName,m_PostValue);
- //发送
- dwRetSend = MySend.PostPicDataMethod((LPTSTR)(LPCTSTR)m_strPhotoPath,_T("filename"),
- &pRecvData,dwRecvSize,
- SendCode,RecvCode);
- //处理接收数据
- //99:图片不存在
- //100:正常成功
- //101:服务器无法连接
- //102:提交页面无法打开
- //103:数据发送失败
- //104:服务器处理失败
- //500:异常错误
- if (dwRetSend == 100)
- {
- MessageBox(_T("发送成功"));
- }
- else if (dwRetSend == 99 )
- {
- MessageBox(_T("发送成功"));
- }
- else if (dwRetSend == 101 )
- {
- MessageBox(_T("服务器无法连接"));
- }
- else if (dwRetSend == 102 )
- {
- MessageBox(_T("提交页面无法打开"));
- }
- else if (dwRetSend == 103 )
- {
- MessageBox(_T("数据发送失败"));
- }
- else if (dwRetSend == 104 )
- {
- MessageBox(_T("服务器处理失败"));
- }
- else if (dwRetSend == 500 )
- {
- MessageBox(_T("异常错误"));
- }
- //更新返回数据框
- m_strRecvData = pRecvData;
- UpdateData(FALSE);
- GetDlgItem(IDC_BTN_SEND)->EnableWindow(TRUE);
- }
- void CUploadPhotoDlg::OnBtnFileopen()
- {
- // TODO: Add your control notification handler code here
- TCHAR tzFilter[] = _T("jpg图片(*.jpg;*.jpeg)|*.jpg;*.jpeg|gif图片(*.gif)|*.gif|所有文件(*.*)|*.*||");
- CFileDialog dlg(TRUE,NULL,NULL,OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT|OFN_ENABLESIZING|OFN_EXPLORER,
- tzFilter,NULL);
- if (dlg.DoModal() == IDOK)
- {
- m_strPhotoPath = dlg.GetPathName();
- UpdateData(FALSE);
- }
- }