IOS开发之POST和JSON处理

最近在开发IOS中，用到了POST数据到服务器，并将返回的JSON格式数据进行处理。这里使用的是JSON库是JSON-framwork

 1 -(IBAction)JsonConvert:(id)sender
 2 {
 3     NSString *urlAsString = @"http://192.168.1.8/ajax/SInfo.ashx";
 4     urlAsString = [urlAsString stringByAppendingString:@"?param1=First"];
 5     urlAsString = [urlAsString stringByAppendingString:@"&param2=Second"];
 6     NSURL *url = [NSURL URLWithString:urlAsString];
 7     
 8     NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
 9     [urlRequest setTimeoutInterval:30.0f];
10     [urlRequest setHTTPMethod:@"POST"];
11     
12     NSString *body = @"bodyParam1=BodyValue1&bodyParam2=BodyValue2";
13     [urlRequest setHTTPBody:[body dataUsingEncoding:NSUTF8StringEncoding]];
14     NSOperationQueue *queue = [[NSOperationQueue alloc] init];
15     
16     [NSURLConnection
17      sendAsynchronousRequest:urlRequest queue:queue completionHandler:^(NSURLResponse *response,NSData *data, NSError *error)
18     {
19         if ([data length] >0 && error == nil){
20             NSError * error;
21             NSMutableDictionary * root = [[CJSONDeserializer deserializer] deserialize:data error:&error];
22             NSMutableArray *rows = [root objectForKey:@"rows"]; //获取需要循环的记录
23             NSString *str = [root objectForKey:@"total"]; 
24             NSLog(@"总记录数：:%@",str);
25             for(NSMutableDictionary *row in rows)
26             {
27                 NSString *SchoolNo = [row objectForKey:@"SchoolNo"];
28                 NSLog(@"学校编号：%@",SchoolNo);
29             }
30             
31             
32             
33         }
34         else if ([data length] == 0 && error == nil){
35             NSLog(@"Nothing was downloaded.");
36         }
37         
38         else if (error != nil){
39             NSLog(@"Error happened = %@", error);
40         }
41         
42     }];
43     
44     
45 }

 

posted @ 2013-08-27 09:48  localitysoft  阅读(1007)  评论(0)    收藏  举报