OC-数据解析JSON解析（三）

message.txt

// ViewController.m

// Json(System)解析

#import "ViewController.h"

#import "Message.h"

@interface ViewController ()

- (IBAction)JsonSystem:(UIButton *)sender;

@property(nonatomic,strong)NSMutableArray *dateArray;

@end

@implementation ViewController

//使用系统自带的JSON解析

- (IBAction)JsonSystem:(UIButton *)sender {

//1获取文件路径

NSString *filePath = [[NSBundle mainBundle]pathForResource:@"message.txt" ofType:nil];

//2创建date接收对象

NSData *fileData = [NSData dataWithContentsOfFile:filePath];

//3使用系统提供的JSAON类，将需要解析的文件传入，由于最外侧是数组，所以最终解析的数据应该由数组接收

NSArray *temArray = [NSJSONSerialization JSONObjectWithData:fileData options:(NSJSONReadingAllowFragments)error:nil];

NSLog(@"%@",temArray);

//初始化数组

self.dateArray = [NSMutableArray array];

//3.1 for in

for ( NSDictionary *dict in temArray) {

NSLog(@"====%@",dict[@"receiver"]);

//3.2创建模型对象

Message *message = [Message new];

[message setValuesForKeysWithDictionary:dict];

NSLog(@"++++++%@",message.receiver);

//3.3将模型数据的东西放到数组内部

[self.dateArray addObject:message];

}

for (NSString *str in self.dateArray) {

NSLog(@"------%@",str);

}

//测试打印

[self.dateArray enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {

NSLog(@"%@ %@ %@ %@",[obj content],[obj receiver],[obj date],[obj sender]);

}];

}

//源文件百度云：链接: https://pan.baidu.com/s/1gfqZbhT 密码: hkbn