iphone学习笔记--JSON数据解析

 JSON数据解析

 

1. 下载第三方JSON库。下载地址

http://code.google.com/p/json-framework/downloads/list

2. 下载完成后，双击dmg文件，打开后把JSON目录拖至项目

 

3. 导入JSON解析库

    #import "JSON.h"

4 .解析

NSString *jsonString = [NSString stringWithString:@"{\"foo\": \"bar\"}"];
NSDictionary *dictionary = [jsonString JSONValue];
NSLog(@"Dictionary value for \"foo\" is \"%@\"", [dictionary objectForKey:@"foo"]); 
NSString *arrayString = [NSString stringWithString:@"[{\"foo\": \"bar\"},{\"foo\": \"bar2\"}]"];
NSArray *array = [arrayString JSONValue];
NSDictionary *dictionary = [array objectAtIndex:0];//取第一个的值    
NSLog(@"Dictionary value for \"foo\" is \"%@\"", [dictionary objectForKey:@"foo"]);