如何解析iPhone Objective

本文介绍了如何解析iPhone Objective-C中的JSON字符串?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在尝试解析iphone中的JSON字符串，到目前为止，我已经能够正确获取JSON值

Hi i am trying to parse a JSON string in iphone and so far i have been able to get JSON VALUE correctly

但是在那之后我得到了一个错误:

but after that i am geting an error:

-[__NSArrayM objectForKey:]: unrecognized selector sent to instance 0x62242e0 2011-08-16 16:11:58.792 BleepBleep[4083:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM objectForKey:]: unrecognized selector sent to instance 0x62242e0' *** Call stack at first throw: ( 0 CoreFoundation 0x010a9be9 __exceptionPreprocess + 185 1 libobjc.A.dylib 0x011fe5c2 objc_exception_throw + 47 2 CoreFoundation 0x010ab6fb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187 3 CoreFoundation 0x0101b366 ___forwarding___ + 966 4 CoreFoundation 0x0101af22 _CF_forwarding_prep_0 + 50 5 BleepBleep 0x0000733f -[Screen1 network:didFinishLoadingWithRequest:data:] + 79 6 BleepBleep 0x0000b7e4 -[WNetwork handleResponse] + 323 7 BleepBleep 0x0000b69b -[WNetwork connectionDidFinishLoading:] + 36 8 Foundation 0x00077172 -[NSURLConnection(NSURLConnectionReallyInternal) sendDidFinishLoading] + 108 9 Foundation 0x000770cb _NSURLConnectionDidFinishLoading + 133 10 CFNetwork 0x01674606 _ZN19URLConnectionClient23_clientDidFinishLoadingEPNS_26ClientConnectionEventQueueE + 220 11 CFNetwork 0x0173f821 _ZN19URLConnectionClient26ClientConnectionEventQueue33processAllEventsAndConsumePayloadEP20XConnectionEventInfoI12XClientEvent18XClientEventParamsEl + 293 12 CFNetwork 0x0166ae3c _ZN19URLConnectionClient13processEventsEv + 100 13 CFNetwork 0x0166acb7 _ZN17MultiplexerSource7performEv + 251 14 CoreFoundation 0x0108b01f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15 15 CoreFoundation 0x00fe928b __CFRunLoopDoSources0 + 571 16 CoreFoundation 0x00fe8786 __CFRunLoopRun + 470 17 CoreFoundation 0x00fe8240 CFRunLoopRunSpecific + 208 18 CoreFoundation 0x00fe8161 CFRunLoopRunInMode + 97 19 GraphicsServices 0x019de268 GSEventRunModal + 217 20 GraphicsServices 0x019de32d GSEventRun + 115 21 UIKit 0x002e442e UIApplicationMain + 1160 22 BleepBleep 0x00002018 main + 102 23 BleepBleep 0x00001fa9 start + 53 ) terminate called after throwing an instance of 'NSException'

这里是我在didFinishLoadingWithRequest中使用的代码

Heres the code i am using in didFinishLoadingWithRequest

-(void)network:(WNetwork*)network didFinishLoadingWithRequest:(NSInteger)pReq data:(NSMutableDictionary*)pData { [self removeLoader]; switch (pReq) { case JBJsonParser: { NSArray *parsedString = [pData objectForKey:@"placesname"]; DLog(@"LIST %@",parsedString); } break; default: break; } }

在网络课程中，我正在使用dis代码:

in the network class i am using dis code:

{ SBJSON *parser = [SBJSON new]; NSString *dataString = [[NSString alloc] initWithData:mRespData encoding:NSUTF8StringEncoding]; NSMutableDictionary *newDic = [dataString JSONValue]; if ([(id)mDelegate respondsToSelector:@selector(network:didFinishLoadingWithRequest:data:)]) { [self.mDelegate network:self didFinishLoadingWithRequest:mReqType data:newDic]; } [newDic autorelease]; [dataString release]; [parser release]; }

推荐答案

此帖子应该会有所帮助.

这里有一些很好的例子: iosdevelopertips/cocoa/json-framework- for-iphone-part-2.html

There are some good examples here: iosdevelopertips/cocoa/json-framework-for-iphone-part-2.html