IOS开发之----NSDictionary，JSON和XML互相转换

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

{

[self test];

// Override point for customization after application launch.

return YES;

}

-(void)test {

//XML文本范例
NSString *testXMLString = @"Cake0.55RegularChocolateBlueberryNoneGlazedSugar";

NSLog(@"xml string[\n%@\n]", testXMLString);
// 解析XML为NSDictionary
NSError *parseError = nil;
NSDictionary *xmlDictionary = [XMLReader dictionaryForXMLString:testXMLString error:&parseError];
// 打印 NSDictionary
NSLog(@"%@", xmlDictionary);

//NSDictionary转换为Data
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:xmlDictionary options:NSJSONWritingPrettyPrinted error:&parseError];

//Data转换为JSON
NSString* str = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

NSLog(@"jsonData string[\n%@\n]", str);
//字符组转换为NSDictionary
NSDictionary *jsonDict = [str objectFromJSONString];

//NSDictionary转换为XML的plist格式
NSData *xmlData = [NSPropertyListSerialization dataFromPropertyList:jsonDict
format:NSPropertyListXMLFormat_v1_0
errorDescription:NULL];

//Data转换为NSString输出 编码为UTF-8
NSLog(@"XML: %@", [[NSString alloc] initWithData:xmlData encoding:NSUTF8StringEncoding]);

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

}

//其中用到了三个类库，分别为

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

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

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

源码下载地址：http://download.csdn.net/download/p709723778/5725585

下面连接是XML转换为Dictionary
https://github.com/nicklockwood/XMLDictionary http://download.csdn.net/detail/p709723778/6706331