如何实现后台发送网址然后获取返回网址？

zxk123

有没有办法在后台不使用浏览器情况下给服务器发送网址，然后获取返回的网址？
第一次发问，不知道这能不能实现？

happytc

回复 1# zxk123


    用TCP或UDP之类的，但前提是服务器会接收你的数据包，并且返回信息。

zxk123

1. 控制台程序main.cpp如下（这个例子是参考来的，一些地方进行了修改）
   
2. 
   
3. #define API_VERSION
   
4. #define BUF_SIZE 4096
   
5. 
   
6. #include <afxwin.h>
   
7. #include <stdio.h>
   
8. #include <windows.h>
   
9. #include "Wininet.h"
   
10. 
    
11. #pragma comment(lib,"Wininet.lib")
    
12. 
    
13. //模拟浏览器发送HTTP请求函数
    
14. #ifndef API_VERSION
    
15. CString HttpRequest(TCHAR * lpHostName,short sPort,TCHAR * lpUrl,TCHAR * lpMethod,TCHAR * lpPostData,unsigned int nPostDataLen)
    
16. {
    
17.     HINTERNET hInternet,hConnect,hRequest;
    
18.     BOOL bRet;CString strResponse;
    
19. 
    
20.     hInternet = InternetOpen(_T("User-Agent"),INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,0);
    
21.     if(!hInternet)
    
22.         goto Ret0;
    
23. 
    
24.     hConnect = InternetConnect(hInternet,lpHostName,sPort,NULL,_T("HTTP/1.1"),INTERNET_SERVICE_HTTP,0,0);
    
25.     if(!hConnect)
    
26.         goto Ret0;
    
27. 
    
28.     hRequest = HttpOpenRequest(hConnect,lpMethod,lpUrl,_T("HTTP/1.1"),NULL,NULL,INTERNET_FLAG_RELOAD,0);
    
29.     if(!hRequest)
    
30.         goto Ret0;
    
31. 
    
32.     //bRet = HttpAddRequestHeaders(hRequest,"Content-Type: application/x-www-form-urlencoded",Len(FORMHEADERS),HTTP_ADDREQ_FLAG_REPLACE | HTTP_ADDREQ_FLAG_ADD);
    
33.     //if(!bRet)
    
34.         //goto Ret0;
    
35. 
    
36.     bRet = HttpSendRequest(hRequest,NULL,0,lpPostData,nPostDataLen);
    
37. 
    
38.     while(TRUE)
    
39.     {
    
40.         char cReadBuffer[BUF_SIZE];
    
41.         unsigned long lNumberOfBytesRead;
    
42.         bRet = InternetReadFile(hRequest,cReadBuffer,sizeof(cReadBuffer) - 1,&lNumberOfBytesRead);
    
43. 
    
44. //an>
    
45.         if(!bRet || !lNumberOfBytesRead)
    
46.             break;
    
47.         cReadBuffer[lNumberOfBytesRead] = 0;
    
48.         strResponse = strResponse + cReadBuffer;
    
49.     }
    
50. 
    
51. Ret0:
    
52.     if(hRequest)
    
53.         InternetCloseHandle(hRequest);
    
54.     if(hConnect)
    
55.         InternetCloseHandle(hConnect);
    
56.     if(hInternet)
    
57.         InternetCloseHandle(hInternet);
    
58. 
    
59.     return strResponse;
    
60. }
    
61. 
    
62. #include   <afxpriv.h>   
    
63. 
    
64. void main()
    
65. {
    
66.     // CString strResponse = HttpRequest(_T("translate.google.com"),80,_T("/translate_t?langpair=en|zh-CN"),_T("POST"),_T("hl=zh-CN&ie=UTF-8&text=this is me&langpair=en|zh-CN"),wcslen(_T("hl=zh-CN&ie=UTF-8&text=this is me&langpair=en|zh-CN")));
    
67.    CString strResponse = HttpRequest(_T("localhost"),80,_T("/cake/test1.php?str=中文张三&num=3"),_T("GET"),NULL,0);
    
68.     FILE * fp = NULL;
    
69. _wfopen_s(&fp, _T("C:\\123.htm"),_T("wb"));
    
70. USES_CONVERSION;
    
71.     fwrite(T2A(strResponse),strResponse.GetLength(),1,fp);
    
72.     fclose(fp);
    
73.     ::MessageBox(NULL,strResponse,_T("123"),0);
    
74. }
    
75. 
    
76. #else
    
77. int HttpRequest(char * lpOutBuffer, TCHAR * lpHostName,short sPort,TCHAR * lpUrl,TCHAR * lpMethod,TCHAR * lpPostData,unsigned int nPostDataLen)
    
78. {
    
79.     HINTERNET hInternet,hConnect,hRequest;
    
80.     BOOL bRet;
    
81. int iResult = 0;
    
82. char cResponse[BUF_SIZE] = {0};
    
83. char cReadBuffer[BUF_SIZE];
    
84.     unsigned long lNumberOfBytesRead;
    
85. //打开环境
    
86.     hInternet = InternetOpen(_T("User-Agent"),INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,0);
    
87. if(!hInternet){
    
88.   iResult = 1;
    
89.         goto Ret0;
    
90. }
    
91. //连接
    
92.     hConnect = InternetConnect(hInternet,lpHostName,sPort,NULL,_T("HTTP/1.1"),INTERNET_SERVICE_HTTP,0,0);
    
93. if(!hConnect){
    
94.   iResult = 2;
    
95.         goto Ret0;
    
96. }
    
97. //打开请求句柄
    
98.     hRequest = HttpOpenRequest(hConnect,lpMethod,lpUrl,_T("HTTP/1.1"),NULL,NULL,INTERNET_FLAG_RELOAD,0);
    
99. if(!hRequest){
    
100.   iResult = 3;
     
101.         goto Ret0;
     
102. }
     
103. //添加请求头部
     
104. //bRet = HttpAddRequestHeaders(hRequest,"Content-Type: application/x-www-form-urlencoded",Len(FORMHEADERS),HTTP_ADDREQ_FLAG_REPLACE | HTTP_ADDREQ_FLAG_ADD);
     
105. //if(!bRet)
     
106. //goto Ret0;
     
107. //发送HTTP请求
     
108.     bRet = HttpSendRequest(hRequest,NULL,0,lpPostData,nPostDataLen);
     
109. //读取顺序字节流
     
110.     while(TRUE){
     
111.         bRet = InternetReadFile(hRequest,cReadBuffer,sizeof(cReadBuffer) - 1,&lNumberOfBytesRead);
     
112.   if(bRet){  //读取成功
     
113.    if(lNumberOfBytesRead == 0){  //已经读到流尾部了
     
114.     break;
     
115.    }else{
     
116.     cReadBuffer[lNumberOfBytesRead] = 0;
     
117.     strcat_s(cResponse, cReadBuffer);
     
118.    }
     
119.   }else{
     
120.    iResult = 10;
     
121.    break;
     
122.   }
     
123.     }
     
124. //关闭打开的句柄
     
125. Ret0:
     
126.     if(hRequest)
     
127.         InternetCloseHandle(hRequest);
     
128.     if(hConnect)
     
129.         InternetCloseHandle(hConnect);
     
130.     if(hInternet)
     
131.         InternetCloseHandle(hInternet);
     
132. //读取的数据拷贝到输出缓冲区
     
133. strcpy_s(lpOutBuffer, BUF_SIZE - 1, cResponse);  //输出缓冲区大小不得小于BUF_SIZE！！！
     
134.     return iResult;
     
135. }
     
136. 
     
137. void main()
     
138. {
     
139. char cResponse[BUF_SIZE] = {0};
     
140. int iResult;
     
141. iResult = HttpRequest(cResponse, _T("localhost"), 80, _T("/cake/test1.php?str=产品葡萄，2009年6月&num=1"), _T("GET"), NULL, 0);
     
142.     FILE * fp = NULL;
     
143. _wfopen_s(&fp, _T("C:\\123.htm"),_T("wb"));
     
144.     fwrite(cResponse, strlen(cResponse), 1, fp);
     
145.     fclose(fp);
     
146.     ::MessageBoxA(NULL, cResponse, "123", 0);
     
147. }
     
148. #endif
     
149. 
     
150. 在本地服务器localhost启动apache服务器，在对应的文档目录下放上test1.php文件，此服务器文件如下：
     
151. 
     
152. <html>
     
153. <head></head>
     
154. <body>
     
155. <?php
     
156. echo 'strlen(str) * num = ' . strlen($_GET['str']) * $_GET['num'];
     
157. ?>
     
158. </body>
     
159. </html>
     
160. 
     

复制代码

这段代码是网上找到的，不是AU3的看不懂，求大神分析下。

devil3380

上面是C++的嘛

happytc

回复 3# zxk123

你在那里拷的乱78糟的cpp文件。

你是这个意思呀，参见‘获取网络文件修改时间’的6楼例子
http://www.autoitx.com/forum.php ... 8%C2%E7%CE%C4%BC%FE

另外参见republican的_WinHTTP_GetRespond
http://www.autoitx.com/thread-18528-1-1.html

asdasdasd

可以在后台下载找开然后再获取的,仔细看下帮助文件!