Note on the use of NSJSONSerialization in iOS, and the use of block in ios

Note on the use of NSJSONSerialization in iOS, and the use of block in ios

This is the first Json parsing method. Because it is easy to use and has a high resolution efficiency, NSJSONSerialization is the best choice for Json data parsing. Below is a simple attachment of my code ~

NSError * error;

NSURLRequest * request = [NSURLRequest requestWithURL: [NSURL URLWithString: @ "http: // 192.168.1.122: 8080/app/common/focus/4"];

NSData * response = [NSURLConnection sendSynchronousRequest: request returningResponse: nil error: nil];

NSArray * imgarr = [NSJSONSerialization JSONObjectWithData: response options: NSJSONReadingMutableLeaves error: & error];

NSLog (@ "% @", imgarr );

Img = [[NSMutableArray alloc] init];

For (int I = 0; I <[imgarr count]; I ++ ){

NSDictionary * imgDic = [imgarr objectAtIndex: I];

NSString * imgstr = (NSString *) [imgDic objectForKey: @ "imgsrc"];

NSString * port = @ "http: // 192.168.1.122: 8080 ";//

NSString * imgstr1 = [port stringByAppendingString: imgstr];

[Img addObject: imgstr1];

}

NSLog (@ "% @", img );

 

Now the img array stores my image URLs ~~ Easy to use ~ Just a few lines of code