C++ HTTP包未发送
我为MacOSX小牛编写应用程序。它必须是应用程序,可以向服务器发送POST和GET请求。首先,我尝试发送一个POST请求。但是,不幸的是,它不起作用,我也不知道为什么。当我试图用sniffer WireShark捕获包时,它显示没有发送包。这是我的代码:C++ HTTP包未发送,c++,macos,http,httprequest,cfnetwork,C++,Macos,Http,Httprequest,Cfnetwork,我为MacOSX小牛编写应用程序。它必须是应用程序,可以向服务器发送POST和GET请求。首先,我尝试发送一个POST请求。但是,不幸的是,它不起作用,我也不知道为什么。当我试图用sniffer WireShark捕获包时,它显示没有发送包。这是我的代码: UInt32 Login(wchar_t* wstrIpAddress) { size_t size = wstrIpAddress.length(); //create request body CFStringR
UInt32 Login(wchar_t* wstrIpAddress)
{
size_t size = wstrIpAddress.length();
//create request body
CFStringRef bodyString = CFSTR("");
CFDataRef bodyData = CFStringCreateExternalRepresentation(kCFAllocatorDefault,
bodyString,
kCFStringEncodingUTF8,
0);
if(bodyData == NULL)
{
cout << "CFStringCreateExternalRepresentation() could not convert the characters to the specified encoding. "
"Error code: "
<< errno << endl;
return 2;
}
//create headers
CFStringRef headerFieldName = CFSTR("Content-Type");
CFStringRef headerFieldValue = CFSTR("application/x-www-form-urlencoded;charset=base64");
//fix coding wstrIpAddress from wstring to UInt8
CFStringEncoding encoding =
(CFByteOrderLittleEndian == CFByteOrderGetCurrent()) ? kCFStringEncodingUTF32LE : kCFStringEncodingUTF32BE;
CFIndex wstrIpAddressLen = (wcslen(wstrIpAddress.c_str())) * sizeof(wchar_t);
CFStringRef myUrl = CFStringCreateWithBytes(kCFAllocatorDefault,
(UInt8*)wstrIpAddress.c_str(),
wstrIpAddressLen,
encoding,
false);
if(myUrl == NULL)
{
cout << "CFStringCreateWithBytes() had a problem with creating the object. Error code: " << errno << endl;
return 3;
}
//CFStringRef urlEscaped = CFURLCreateStringByAddingPercentEscapes(NULL, myUrl, NULL, NULL, kCFStringEncodingUTF8);
CFURLRef url = CFURLCreateWithString(kCFAllocatorDefault, myUrl, 0);
if(url == NULL)
{
cout << "CFURLCreateWithString() had a problem with creating the object. Error code: " << errno << endl;
return 4;
}
CFStringRef requestMethod = CFSTR("POST");
CFHTTPMessageRef myRequest = CFHTTPMessageCreateRequest(kCFAllocatorDefault, requestMethod, url, kCFHTTPVersion1_1);
if(myRequest == NULL)
{
cout << "CFHTTPMessageCreateRequest() had a problem with creating the object. Error code: " << errno << endl;
return 5;
}
CFDataRef bodyDataExt = CFStringCreateExternalRepresentation(kCFAllocatorDefault,
bodyString,
kCFStringEncodingUTF8,
0);
if(bodyDataExt == NULL)
{
cout << "CFStringCreateExternalRepresentation() could not convert the characters to the specified encoding. "
"Error code: "
<< errno << endl;
return 6;
}
CFHTTPMessageSetBody(myRequest, bodyDataExt);
CFHTTPMessageSetHeaderFieldValue(myRequest, headerFieldName, headerFieldValue);
CFReadStreamRef myReadStream = CFReadStreamCreateForHTTPRequest(kCFAllocatorDefault, myRequest);
//CFErrorRef copyError = CFReadStreamCopyError(myReadStream);
//cout << copyError << endl;
CFRelease(myRequest);
myRequest = NULL;
//you could release the CFHTTP request object immediately after calling CFReadStreamCreateForHTTPRequest
//Because the read stream opens a socket connection with the server specified by the myUrl parameter when the CFHTTP request was created, some
//amount of time must be allowed to pass before the stream is considered to be open
//Opening the read stream also causes the request to be serialized and sent
Boolean bRes = CFReadStreamOpen(myReadStream);
if(bRes == FALSE)
{
CFStreamError myErr = CFReadStreamGetError(myReadStream);
// An error has occurred.
if (myErr.domain == kCFStreamErrorDomainPOSIX) {
// Interpret myErr.error as a UNIX errno.
}
else if (myErr.domain == kCFStreamErrorDomainMacOSStatus) {
// Interpret myErr.error as a MacOS error code.
OSStatus macError = (OSStatus)myErr.error;
// Check other error domains.
}
cout << "ReadStreamOpen error with error code: " << errno << endl;;
return 7;
}
//UInt32 myErrCode = CFHTTPMessageGetResponseStatusCode(myReadStream);
/*if(myErrCode != 200)
{
cout << "Request faild\n" << endl;
return 1;
}*/
//release the message objects
CFRelease(url);
CFRelease(bodyString);
CFRelease(bodyData);
CFRelease(headerFieldName);
CFRelease(headerFieldValue);
CFRelease(bodyDataExt);
bodyDataExt = NULL;
return 0;
}
UInt32登录(wchar\u t*wstrIpAddress)
{
size\u t size=wstrIpAddress.length();
//创建请求主体
CFStringRef bodyString=CFSTR(“”);
CFDataRef bodyData=CFStringCreateExternalRepresentation(kCFAllocatorDefault,
腰线,
kCFStringEncodingUTF8,
0);
if(bodyData==NULL)
{
我找到了答案
例如,服务器地址必须采用以下格式:
,但不是像这样的ip->10.0.0.25
我们还必须从响应中检查状态代码,以确保正确连接
UInt32 myErrCode = CFHTTPMessageGetResponseStatusCode(myReadStream);
if(myErrCode != 200)
{
cout << "Request faild\n" << endl;
return 1;
}
UInt32 myErrCode=CFHTTPMessageGetResponseStatusCode(myReadStream);
如果(myErrCode!=200)
{
你是否已经使用了调试器?@πάνταῥεῖ, 是的,当然……但这对我没有帮助(()我找到了答案,但因为我的声誉不允许我,所以无法发布(()我能做什么?你应该能够回答你自己的问题。没有声誉限制IIRC。除非你被禁止回答一般问题,否则应该不会有问题。