如何将Plist数据转换为JSON格式？

Question

我在网络连接不可用时使用plist在本地保存数据，当网络可用时，我想将本地保存的数据同步到Web服务器。在此过程中，我想将我的plist数据转换为JSON数据，将该数据发布到Web服务器。任何人都可以帮助我吗？

Answer 1

你可以做到这一点与此代码：

NSMutableDictionary *plistDic = [[NSMutableDictionary alloc] initWithContentsOfFile: path]; 

Answer 2

您可以从字典格式的plist访问数据序列化从那时起它来获得JSON字符串。

NSString *path = [[NSBundle mainBundle] pathForResource:@"yourPlistName" ofType:@"plist"]; 
NSData* data = [NSData dataWithContentsOfFile:path]; 
NSDictionary* dict= [NSPropertyListSerialization propertyListFromData:data 
                mutabilityOption:NSPropertyListImmutable 
                   format:NSPropertyListXMLFormat_v1_0 
                errorDescription:NULL]; 
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict 
            options:NSJSONWritingPrettyPrinted error:&error]; 
NSString *jsonStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding]; 

----- SWIFT 3 -----

if let url = Bundle.main.url(forResource:"yourPlistName", withExtension: "plist") { 
do { 
let data = try Data(contentsOf:url) 
let dict = try PropertyListSerialization.propertyList(from: data, options: [], format: nil) as! [String:Any] 
    let jsonData = try JSONSerialization.data(withJSONObject: dict , options: .prettyPrinted) 
    // jsondata your required data 
    } catch { 
    print(error) 
} 
} 

Answer 3

使用下面

NSString * plistPath = @“data.plist”; 
NSMutableDictionary *plistData = [[NSMutableDictionary alloc] initWithContentsOfFile: plistPath]; 
NSError * err; 
NSString * jsonStr = nil; 
NSData * jsonData = [NSJSONSerialization dataWithJSONObject:plistData options:0 error:&err]; 
jsonStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];