NSDictionary 怎么转成NSString
NSDictionary *infoDict = @{@"name":@"taoyali",@"password":@"taoyali"}；
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:infoDict options:0 error:0];
NSString *dataStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
JSON字符串转化为字典
+ (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解析失败：%@",err);
return nil;
}
return dic;
}
