/// <summary>
/// 交易处理
/// </summary>
/// <param name="request"></param>
/// <param name="cancellationToken">事务标识</param>
/// <param name="next"></param>
/// <returns></returns>
public async Task <TResponse> Handle(TRequest request, CancellationToken cancellationToken,
RequestHandlerDelegate <TResponse> next)
{
//类名
var typeName = request.GetGenericTypeName();
TResponse response = default(TResponse);
try
{
//如果开启事务
if (_dbContext.HasActiveTransaction)
{
return(await next());
}
var strategy = _dbContext.Database.CreateExecutionStrategy();
await strategy.ExecuteAsync(async() =>
{
using (var transaction = await _dbContext.BeginTransactionAsync(cancellationToken))
{
response = await next();
await _dbContext.CommitTransactionAsync(transaction);
}
});
return(response);
}
catch (Exception ex)
{
ServiceProvider.GetLogService()
.Error(
$"信息导入错误，原因为：{ex}，类名:{typeName}，信息为：{ServiceProvider.GetJsonProvider().Serializer(request)}");
throw ex;
}
}
