Question

假设我有5个请求，并且我想同时发送所有5个请求。我可以使用CompletableFuture.allOf（）;但是，allOf（）仅在所有期货都成功的情况下返回，并且即使一个失败也将失败。如何从n个成功的期货中提取x，而忽略仍然失败的那个，同时仍然并行发送请求？

我要采取的步骤：

1. Send 5 messages in parallel
2. After 10 second timeout, return all successful messages even if any failed

。

Answer 1

您可以单独捕获异常，并为这些异常情况返回null：

Function GenerateBlendedReturnSeries(AccountID1 As String, Account1Proportion As Double, _
     Optional ByVal AccountID2 As String, Optional ByVal Account2Proportion As Double, _
     Optional ByVal AccountID3 As String, Optional ByVal Account3Proportion As Double) As Variant 'Vs. As Double()

' CODE IN BETWEEN

Dim BlendedReturnSeriesArray As Variant
    ReDim BlendedReturnSeriesArray(ArraySize, 1)

    Debug.Print (ArraySize)

    On Error Resume Next
    For i = 0 To UBound(BlendedReturnSeriesArray)

        BlendedReturnSeriesArray(i, 1) = _
          Account1PeriodReturnSeriesArray(i, 1) * Account1Proportion _
        + Account2PeriodReturnSeriesArray(i, 1) * Account2Proportion _
        + Account3PeriodReturnSeriesArray(i, 1) * Account3Proportion
        'Debug.Print (BlendedReturnSeriesArray(i, 1))
        'Debug.Print (i)

    Next i

    On Error GoTo 0

    Debug.Print (BlendedReturnSeriesArray(300, 1))

    GenerateBlendedReturnSeries = BlendedReturnSeriesArray 'BlendedReturnSeriesArray

End Function

有关更多信息，请访问以下页面：https://medium.com/@senanayake.kalpa/fantastic-completablefuture-allof-and-how-to-handle-errors-27e8a97144a0

如何使用CompletableFuture异步发送多个请求并返回成功？

1 个答案: