IOS開發之----NSDictionary，JSON和XML互相轉換

來自http://blog.sina.com.cn/s/blog_71715bf80101div7.html

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    [self test];

    // Override point for customization after application launch.

    return YES;

}

-(void)test {

    

    //XML文本範例

    NSString *testXMLString = @"Cake0.55RegularChocolateBlueberryNoneGlazedSugar";

    

    NSLog(@"xml string[\n%@\n]", testXMLString);

    // 解析XML爲NSDictionary

    NSError *parseError = nil;

    NSDictionary *xmlDictionary = [XMLReader dictionaryForXMLString:testXMLString error:&parseError];

    // 打印 NSDictionary

    NSLog(@"%@", xmlDictionary);

    

    //NSDictionary轉換爲Data

    NSData* jsonData = [NSJSONSerialization dataWithJSONObject:xmlDictionary options:NSJSONWritingPrettyPrinted error:&parseError];

    

    //Data轉換爲JSON

    NSString* str = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

    

    NSLog(@"jsonData string[\n%@\n]", str);

    //字符組轉換爲NSDictionary

    NSDictionary *jsonDict = [str objectFromJSONString];

    

    //NSDictionary轉換爲XML的plist格式

    NSData *xmlData = [NSPropertyListSerialization dataFromPropertyList:jsonDict

                                                                 format:NSPropertyListXMLFormat_v1_0

                                                       errorDescription:NULL];

    

    //Data轉換爲NSString輸出 編碼爲UTF-8

    NSLog(@"XML: %@", [[NSString alloc] initWithData:xmlData encoding:NSUTF8StringEncoding]);

    

    

   

    NSLog(@"%@",[XMLWriter XMLStringFromDictionary:jsonDict withHeader:NO]);

}

//其中用到了三個類庫，分別爲

1，JSONKit       https://github.com/johnezang/JSONKit

2，XMLWriter    https://github.com/ahmyi/XMLWriter

3，XMLReader   https://github.com/amarcadet/XMLReader

源碼下載地址：http://download.csdn.net/download/p709723778/5725585

下面連接是XML轉換爲Dictionary

https://github.com/nicklockwood/XMLDictionary

http://download.csdn.net/detail/p709723778/6706331