From 75e175f7f32d123a0bd7f8e3afe601e0a58de0be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=96=AF=E7=8B=82=E7=9A=84=E7=8B=AE=E5=AD=90Li?=
 <15040126243@163.com>
Date: Fri, 18 Nov 2022 23:46:54 +0800
Subject: [PATCH] =?UTF-8?q?fix=20=E4=BF=AE=E5=A4=8D=20WebFluxUtils=20?=
 =?UTF-8?q?=E8=AF=BB=E5=8F=96=E7=A9=BA=20body=20=E6=8A=A5=20null=20?=
 =?UTF-8?q?=E9=97=AE=E9=A2=98?=
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---
 .../main/java/com/ruoyi/gateway/utils/WebFluxUtils.java    | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/ruoyi-gateway/src/main/java/com/ruoyi/gateway/utils/WebFluxUtils.java b/ruoyi-gateway/src/main/java/com/ruoyi/gateway/utils/WebFluxUtils.java
index 2d06873b..38a32523 100644
--- a/ruoyi-gateway/src/main/java/com/ruoyi/gateway/utils/WebFluxUtils.java
+++ b/ruoyi-gateway/src/main/java/com/ruoyi/gateway/utils/WebFluxUtils.java
@@ -1,5 +1,6 @@
 package com.ruoyi.gateway.utils;
 
+import cn.hutool.core.util.ObjectUtil;
 import com.ruoyi.common.core.domain.R;
 import com.ruoyi.common.core.utils.JsonUtils;
 import com.ruoyi.common.core.utils.StringUtils;
@@ -79,7 +80,11 @@ public class WebFluxUtils {
      * @return body
      */
     public static String resolveBodyFromCacheRequest(ServerWebExchange exchange) {
-        DataBuffer buffer = (DataBuffer) exchange.getAttributes().get(ServerWebExchangeUtils.CACHED_REQUEST_BODY_ATTR);
+        Object obj = exchange.getAttributes().get(ServerWebExchangeUtils.CACHED_REQUEST_BODY_ATTR);
+        if (ObjectUtil.isNull(obj)) {
+            return null;
+        }
+        DataBuffer buffer = (DataBuffer) obj;
         CharBuffer charBuffer = StandardCharsets.UTF_8.decode(buffer.asByteBuffer());
         return charBuffer.toString();
     }