private async Task <int> ImportFromJsonFile(IFormFile file)
{
try
{
using (var stream = file.OpenReadStream())
{
var buffer = new byte[file.Length];
await stream.ReadAsync(buffer, 0, buffer.Length);
var json = Encoding.UTF8.GetString(buffer);
var list = JsonConvert.DeserializeObject <List <QandA> >(json);
var answers = new List <QandA>();
if (list != null)
{
foreach (var item in list)
{
if (await ValidImportData(item.Intent, item.Answer))
{
answers.Add(new QandA {
Id = Guid.NewGuid(), Answer = item.Answer, Intent = item.Intent
});
}
}
await _answerService.AddRangeAsync(answers);
await _answerService.SaveChangesAsync();
}
return(answers.Count);
}
}
catch (Exception ex)
{
_logger.LogError($"从json导入数据失败：{ex.Message}");
throw ex;
}
}