CFNetwrok网络请求3

//

//  CFNetworkTest3.m

//  TestCF

//

//  Created by Jabez on 15/5/11.

//  Copyright (c) 2015年 John. All rights reserved.

//

#import "CFNetworkTest3.h"

@implementation CFNetworkTest3

// good

- (void)sendMessage

{

    [self request];

}

- (void)request

{

    CFStringRef url = CFSTR("http://jabez.local/~jabez/test/response/response0");

    CFURLRef myURL = CFURLCreateWithString(kCFAllocatorDefault, url, NULL);

    CFStringRef requestMethod = CFSTR("POST");

    CFHTTPMessageRef myRequest = CFHTTPMessageCreateRequest(kCFAllocatorDefault, requestMethod, myURL, kCFHTTPVersion1_1);

    NSData *bodyData = [@"key=test3" dataUsingEncoding:NSUTF8StringEncoding];

    CFHTTPMessageSetBody(myRequest, (__bridge CFDataRef)bodyData);

    CFHTTPMessageSetHeaderFieldValue(myRequest, CFSTR("key"), CFSTR("testheader3"));

    CFReadStreamRef requestReadStream = CFReadStreamCreateForHTTPRequest(kCFAllocatorDefault, myRequest);

    CFHTTPMessageRef response = CFHTTPMessageCreateEmpty(kCFAllocatorDefault, false);

    CFStreamClientContext clientConetext = { 0, response, NULL, NULL, NULL};

    CFOptionFlags flags = kCFStreamEventHasBytesAvailable | kCFStreamEventEndEncountered | kCFStreamEventErrorOccurred;

    Boolean result = CFReadStreamSetClient(requestReadStream, flags, myCFReadStreamClientCallback, &clientConetext);

    if (result) {

        CFReadStreamScheduleWithRunLoop(requestReadStream, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);

        if (CFReadStreamOpen(requestReadStream)) {

            CFRunLoopRun();

        } else {

            CFReadStreamUnscheduleFromRunLoop(requestReadStream, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);

        }

    }

    CFRelease(myURL);

    CFRelease(myRequest);

}

static void myCFReadStreamClientCallback(CFReadStreamRef stream, CFStreamEventType type, void *clientCallBackInfo) {

    CFHTTPMessageRef response =  (CFHTTPMessageRef)clientCallBackInfo;

    if (type == kCFStreamEventEndEncountered) {

        CFIndex statusCode = CFHTTPMessageGetResponseStatusCode(response);

        NSLog(@"status Code: %li", statusCode);

        CFDataRef responseData = CFHTTPMessageCopyBody(response);

        CFIndex count = CFDataGetLength(responseData);

        CFStringRef responseJson = CFStringCreateWithBytes(kCFAllocatorDefault, CFDataGetBytePtr(responseData), count, kCFStringEncodingUTF8, YES);

        NSString *jsongString = [NSString stringWithFormat:@"%@", (__bridge NSString *) responseJson];

        NSLog(@"jsongString: %@", jsongString);

        CFRelease(responseJson);

        CFRelease(responseData);

    } else if (type == kCFStreamEventErrorOccurred) {

        CFReadStreamUnscheduleFromRunLoop(stream, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);

        CFReadStreamClose(stream);

        CFRelease(stream);

        stream = NULL;

    } else if (type == kCFStreamEventHasBytesAvailable) {

        CFTypeRef message = CFReadStreamCopyProperty(stream, kCFStreamPropertyHTTPResponseHeader);

        NSDictionary *httpHeaders =

        (__bridge NSDictionary *)CFHTTPMessageCopyAllHeaderFields((CFHTTPMessageRef) message);

        NSLog(@"dict: %@", httpHeaders);

        CFRelease(message);

        UInt8 buffer[1024];

        CFIndex length = CFReadStreamRead(stream, buffer, sizeof(buffer));

        CFHTTPMessageAppendBytes(response, buffer, length);

    }

}

@end

CFNetwrok网络请求3

原文：http://blog.csdn.net/jabezlee/article/details/45663745