JSON parsing of local and online files (via interface)

JSON parsing for local file parsing

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

The second parameter, develop a container to receive the 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];    }

Parsing the original code on the online file

*strURL =@"http://api.map.baidu.com/place/v2/search?query=银行&region=大连&output=json&ak=6E823f587c95f0148c19993539b99295";

A normal URL address is not allowed to have Chinese, can only have numbers, 26 letters of the case, and some special symbols, such as &,%, if encountered with the Chinese URL, first of all it does not encode the original code:

NSString *strEncode= [strURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

Next, after the URL meets the requirements, the network request begins, and the network request is divided into three steps 1. Create a nsurl based on a URL that has been compiled

NSURL *url =[NSURL URLWithString:strEncode];

2. Send a request to the original code:

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

3. Return the data we want, a NSData object

Three parameters: The first parameter is the request that was just created, the second is a response that is returned, and the third is the error message

Original code

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

JSON parsing of data returned back

Print out all the bank names.
Original code:

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

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JSON parsing of local and online files (via interface)