Json parses local and online files (through interfaces)

Json parses local and online files (through interfaces)
Parse local files using json

NSString *path =[[NSBundle mainBundle] pathForResource:@“movielist” ofType:@“txt”];

// Specify the second parameter to specify a container to receive parsed data.

NSMutableDictionary *dic =[NSJSONSerialization JSONObjectWithData:data option:NSJSONReadingMutableContainers error:nil];NSMutableArray *movieArr =[NSMutableArray array];    for (NSMutableDictionary *temp in dic[@result]) {        Movie *movie =[[Movie alloc] init];        [movie setValuesForKeysWithDictionary:temp];        [movieArr addObject:movie];        [movie release];    }

Original code for parsing online files

NSString * strURL = @ http://api.map.baidu.com/place/v2/search? Query = Bank®Ion = Dalian & output = json & ak = 6e823f587c95f0148c%3539b99295;

A normal URL address cannot contain Chinese characters, but can only contain numbers, 26 uppercase/lowercase letters, and some special symbols, such as &, %, if you encounter a URL with Chinese characters, do not encode the original code first:

NSString *strEncode= [strURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

Next, after the URL meets the requirements, start network requests. network requests are divided into three steps 1. Create an NSURL Based on the prepared URL

NSURL *url =[NSURL URLWithString:strEncode];

2. Send the original code of a request:

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

3. Return the data we want, an NSData object

Three parameters: the first parameter is the request just created, the second is the response returned, and the third is the error message.

Original code

 NSURLResponse *response = nil;    NSError *error =nil;    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];

Parse the returned data in json format.

Print all the bank names
Original code:

NSMutableDictionary *dic =[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];    for (NSDictionary *dic1 in dic[@results]) {        NSLog(@%@,dic1[@name]);    }