From 3ae2a0dc156c5397e59f0dfe4822ed86e4a50254 Mon Sep 17 00:00:00 2001
From: asahi <mikiyashiki@outlook.com>
Date: Sun, 13 Apr 2025 22:32:39 +0800
Subject: [PATCH] =?UTF-8?q?doc:=20=E9=98=85=E8=AF=BBproject=20reactor?=
 =?UTF-8?q?=E6=96=87=E6=A1=A3?=
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---
 spring/webflux/Reactor.md | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/spring/webflux/Reactor.md b/spring/webflux/Reactor.md
index a3c20d3..c77210c 100644
--- a/spring/webflux/Reactor.md
+++ b/spring/webflux/Reactor.md
@@ -61,6 +61,7 @@
       - [retry](#retry)
         - [retry原理](#retry原理)
       - [retryWhen](#retrywhen)
+      - [retry helper](#retry-helper)
 
 # Reactor 
 ## Reactive Programming
@@ -959,7 +960,11 @@ Retry周期如下所示：
 - 如果`companion flux`complete，将会对error执行swallow操作，retry cycle将会停止，并且也会导致sequence complete
 - 如果`companion flux`产生了一个error,retry cycle将会终止，并且导致sequence按异常终止
 
-
-
-
-
+#### retry helper
+project reactor提供了`Retry` helper，如`RetrySpec`和`RetryBackoffSpec`，二者都允许进行如下所示的自定义行为：
+- `filter`：通过filter设置`允许触发retry的异常`
+- `modifyErrorFilter`： 对之前`filter`设置的异常进行修改
+- `doBeforeRetry`和`doAfterRetry`：针对retrytrigger执行side effect
+  - > `doBeforeRetry()`方法触发在delay发生之前，而`doAfterRetry()`触发在delay之后
+- `onRetryExhaustedThrow(BiFunction)`：在重试数量达到上限后，通过`onRetryExhaustedThrow(BiFunction)`来自定义异常。
+  - 通常情况下，当重试数量达到上限后，自定义异常类型通过`Exceptions.retryExhausted(…​)`方法来构建，其返回的异常类型为`RetryExhaustedException`，可以通过`Exceptions.isRetryExhausted(Throwable)`方法来进行区分
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