Corona中文站

在Xcode中安装部署JSON
1.下载JSON_2.3.dmg到电脑，双击安装.下载地址：http://code.google.com/p/json-framework/downloads/list?can=1&;q=&colspec=Filename+Summary+Uploaded+ReleaseDate+Size+DownloadCount
如下图：


2.把上图中JSON目录拖拽到Xcode中classes目录，然后在自己的单元文件中就可以使用JSON了（例如：#import "JSON/JSON.h"）。

#import "JSONTest1ViewController.h"

#import "JSON/JSON.h"

@implementation JSONTest1ViewController


- (void)viewDidLoad {

[super
viewDidLoad];


/* --- json data ----

[{"id":1,"name":"jack"},{"id":2,"name":"lucy"}]


*/


responseData = [[NSMutableData
data] retain];


NSURLRequest *request = [NSURLRequest
requestWithURL:[NSURL
URLWithString:@"http://192.168.0.160/json.txt"]];


[[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 *luckyNumbers = [responseString JSONValue];


NSMutableString *text = [NSMutableString
stringWithString:@"json data:\n"];


for (int i = 0; i < [luckyNumbers count]; i++)


{


[text appendFormat:@"id:%@;name:%@\n", [[luckyNumbers objectAtIndex:i] objectForKey:@"id"], [[luckyNumbers objectAtIndex:i] objectForKey:@"name"]];


}


label.text = text;

}