Warning: file_get_contents(/data/phpspider/zhask/data//catemap/4/macos/9.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/csharp-4.0/2.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
C++ HTTP包未发送_C++_Macos_Http_Httprequest_Cfnetwork - Fatal编程技术网

C++ HTTP包未发送

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

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
    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。