iphone - 如何通过Get方法从Web服务中获取数据并想保存到iPhone SDK中的Mutable Dictionary中

Question

如何通过“获取方法”从Web服务中获取数据并将其保存到iPhone中的可变字典中..... thnx

Answer 1

如果您使用的是JSOn网络服务来获取数据，请尝试使用本教程

#import 

@interface jsonViewController : UIViewController {
    IBOutlet UILabel *label;
    NSMutableData *responseData;
}


Replace the contents of jsonViewController.m with:


#import "jsonViewController.h"
#import "JSON/JSON.h"

@implementation jsonViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    responseData = [[NSMutableData data] retain];
    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.yourwebservice.com"]];
    [[NSURLConnection alloc] initWithRequest:request delegate:self];
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
    [responseData setLength:0];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
    [responseData appendData:data];
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
    label.text = [NSString stringWithFormat:@"Connection failed: %@", [error description]];
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
    [connection release];

    NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
    [responseData release];

    NSArray *tempArray = [responseString JSONValue];
}