二進制轉化為字符串
NSString *jsonStr = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
二進制數據轉成字典
NSData *jsonData 该窗；
NSDictionary *dicJson=[NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];
把字符串再轉變?yōu)槎M制流
NSData *data=[NSMutableData dataWithData:[str dataUsingEncoding:NSUTF8StringEncoding]];
字典轉成二進制數據
NSError *parseError = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dic options:NSJSONWritingPrettyPrinted error:&parseError];
字典轉json格式字符串
- (NSString*)dictionaryToJson:(NSDictionary *)dic
{
NSError *parseError = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dic options:NSJSONWritingPrettyPrinted error:&parseError];
return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
}
json格式字符串轉字典
- (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解析失斅笙颉：%@",err);
return nil;
}
return dic;
}
