【转】NSJSONSerialization解析JSON数据

JSON->NSData

 1 - (IBAction)touchWriteButton:(id)sender {

 2      NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] init];

 3      [dictionary setValue:@"Anthony" forKey:@"First Name"];

 4      [dictionary setValue:@"Robbins" forKey:@"Last Name"];

 5      [dictionary setValue:[NSNumber numberWithUnsignedInteger:51] forKey:@"Age"];

 6      NSArray *arrayOfAnthonysChildren = [[NSArray alloc] initWithObjects:@"Anthony's Son 1", @"Anthony's Daughter 1", @"Anthony's Son 2", @"Anthony's Son 3", @"Anthony's Daughter 2", nil];

 7      [dictionary setValue:arrayOfAnthonysChildren forKey:@"children"];

 8      NSError *error = nil;

 9      NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictionary options:NSJSONWritingPrettyPrinted error:&error];

10      if (error) { 

11         NSLog(@"dic->%@",error);

12      }

13      [dictionary release];

14      BOOL succeed = [jsonData writeToFile:JSON_PATH atomically:YES];

15      if (succeed) {

16          NSLog(@"Save succeed");

17      }else {

18          NSLog(@"Save fail");

19      }

20 } 

 1 - (IBAction)touchReadButton:(id)sender { 

 2       NSData *jsonData = [[NSData alloc] initWithContentsOfFile:JSON_PATH];     /* Now try to deserialize the JSON object into a dictionary */

 3       NSError *error = nil;

 4       id jsonObject = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:&error];

 5      if (jsonObject != nil && error == nil){

 6          NSLog(@"Successfully deserialized...");

 7          if ([jsonObject isKindOfClass:[NSDictionary class]]){

 8               NSDictionary *deserializedDictionary = (NSDictionary *)jsonObject;

 9               NSLog(@"Dersialized JSON Dictionary = %@", deserializedDictionary);

10          } else if ([jsonObject isKindOfClass:[NSArray class]]){

11              NSArray *deserializedArray = (NSArray *)jsonObject;

12              NSLog(@"Dersialized JSON Array = %@", deserializedArray);

13          } else {

14              NSLog(@"An error happened while deserializing the JSON data.");

15          }

16      }

17      [jsonData release];

18  }

 本文转自编程小翁博客园博客，原文链接：http://www.cnblogs.com/wengzilin/archive/2012/07/17/2595683.html，如需转载请自行联系原作者