iOS:json格式字串轉字典，字典轉json格式字串，iosjson

iOS:json格式字串轉字典，字典轉json格式字串，iosjson

/*!

* @brief 把格式化的JSON格式的字串轉換成字典

* @param jsonString JSON格式的字串

* @return 返回字典

*/

+ (NSDictionary *)dictionaryWithJsonString:(NSString *)jsonString {

if (jsonString == nil) {

return nil;

 

}

 

NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];

NSError *err;

NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData

options:NSJSONReadingMutableContainers

error:&err];

if(err) {

NSLog(@"json解析失敗：%@",err);

return nil;

}

return dic;

}

 

+ (NSString*)dictionaryToJson:(NSDictionary *)dic

{

NSError *parseError = nil;

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

return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

}