objective-c - OS X cocoa 向 PHP 页面发送 HTTP 响应，等待 PHP 响应请求，继续

Question

我想实现标题中提到的内容，有人能指出我关于资源或酷刑的正确方向吗？我确实了解 HTTP 协议的基础知识，但我对 OS X 编程相当陌生。

Answer 1

事实上你可以使用 NSMutableURLRequest，如果你想做一个测试开始你可以这样做：

//test.h

#import <Foundation/Foundation.h>
@interface test : NSObject<NSURLConnectionDataDelegate>{
NSMutableData* _responseData;
}

//测试.m

@implementation test

//Just call this method to start the request. 
-(void)testRequest{
 //set request
 NSURL url = [NSURL URLWithString:@"http://ip/file.php"];
 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url
                                cachePolicy:NSURLCacheStorageNotAllowed
                                                 timeoutInterval:20.0];
 //Start the request 
 NSURLConnection * connection;
 connection = [[NSURLConnection alloc] initWithRequest: request delegate:self];
} 

在此之后，您必须实现 woz 所说的所有方法，但要捕获响应：

#pragma mark - NSURLConectionDlegate Methods
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
 _responseData = [[NSMutableData alloc] init];
}

//Receive data from the server
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
// Append the new data to the instance variable

[_responseData appendData:data];
}

- (NSCachedURLResponse *)connection:(NSURLConnection *)connection
              willCacheResponse:(NSCachedURLResponse*)cachedResponse {
// Return nil to indicate not necessary to store a cached response for this connection
return nil;
}
 //in this method you can check the response.
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
    // The request is complete and data has been received
    NSString *receivedDataString = [[NSString alloc] initWithData:_responseData encoding:NSUTF8StringEncoding];
    NSLog(@"this is reponse: %@",receivedDataString);

}

服务器端
//file.php
echo "hello";

Answer 2

我喜欢简短的解决方案，并使用块。

- (void)sendRequestWithURL:(NSURL*) url {
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    [NSURLConnection sendAsynchronousRequest:request
                                       queue:[NSOperationQueue mainQueue]
                           completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
                               if (!error) {
                                   NSLog(@"%@", [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);
                               }
                               else {
                                   ///log error
                               }
                           }];
}