大佬教程收集整理的这篇文章主要介绍了objective-c – 在Xcode中使用NSURLConnection发送JSON数据，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
NSDictionary *data = [NSDictionary DictionaryWithObject:@"test sending ios" forKey:@"value1"]; NSError *error; NSData *jsonData = [NSJSONserialization dataWithJSONObject:data options:kNilOptions error:&error]; NSURL *url = [NSURL URLWithString:@"http://webserveraddress"]; NSMutableURLrequest *req = [NSMutableURLrequest requestWithURL:url cachePolicy:nil timeoutInterval:60]; [req SETVALue:@"application/json" forhttpHeaderField:@"Accept"]; [req SETVALue:@"application/json" forhttpHeaderField:@"Content-Type"]; [req SETVALue:[NSString StringWithFormat:@"%d",[jsonData length]] forhttpHeaderField:@"Content-Length"]; [req sethttpR_767_11845@ethod:@"POST"]; [req sethttpBody:jsonData]; NSString *retStr = [[NSString alloc] initWithData:[NSURLConnection sendSynchronousrequest:req returningResponse:nil error:nil] encoding:NSUTF8StringEncoding];
例
NSString * key = [NSString StringWithFormat:@"var1=%@&var2=%@&var3=%@",@"var1String",@"var2String",[NSnumber numberWithBool:YES]]; NSURL * url = [NSURL URLWithString:@"http://webserver.com/yourScriptPHP.PHP"]; NSMutableURLrequest * request = [NSMutableURLrequest requestWithURL:url]; [request sethttpR_767_11845@ethod:@"POST"]; [request sethttpBody:[key dataUsingEncoding:NSUTF8StringEncoding]]; [[NSURLConnection alloc] initWithrequest:request delegate:self]; // this is for you to be able to get your server answer. // you will need to make your class a delegate of NSURLConnectionDelegate and NSURLConnectionDataDelegate myClassPointerData = [[NSMutableData data] retain];
实行
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [myClassPointerData appendData:data] } -(void)connection:(NSURLConnection *)connection DidFinishLoading { // do what you want with myClassPointerData the data that your server did send you BACk here // for info on your server PHP script you just need to do: echo json_encode(array('var1'=> $var1,'var2'=>$var2...)); // to get your server sending an answer }
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