From d38ee5d98b5706011ed2e43f53df97ebd4062df8 Mon Sep 17 00:00:00 2001
From: Your Name <your.email@example.com>
Date: Mon, 29 Dec 2025 00:13:36 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E6=94=B9=E8=BF=9B=E7=BD=91=E7=BB=9C?=
 =?UTF-8?q?=E9=94=99=E8=AF=AF=E6=A3=80=E6=B5=8B=20-=20=E6=A3=80=E6=9F=A5er?=
 =?UTF-8?q?ror.cause=E4=B8=AD=E7=9A=84EHOSTUNREACH=E7=AD=89=E9=94=99?=
 =?UTF-8?q?=E8=AF=AF=E7=A0=81?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/api/rmbg/route.ts | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/app/api/rmbg/route.ts b/app/api/rmbg/route.ts
index a187dd0..b8d70a5 100644
--- a/app/api/rmbg/route.ts
+++ b/app/api/rmbg/route.ts
@@ -212,6 +212,7 @@ export async function POST(request: NextRequest) {
       
       // 检查是否是网络连接错误
       if (fetchError instanceof Error) {
+        // 检查超时错误
         if (fetchError.name === 'AbortError') {
           return NextResponse.json(
             { 
@@ -222,14 +223,28 @@ export async function POST(request: NextRequest) {
           );
         }
         
-        if (fetchError.message.includes('EHOSTUNREACH') || 
-            fetchError.message.includes('ENOTFOUND') ||
-            fetchError.message.includes('ECONNREFUSED') ||
-            fetchError.message.includes('No route to host')) {
+        // 检查错误消息和cause中的网络错误
+        const errorMessage = fetchError.message || '';
+        const errorCause = (fetchError as any).cause;
+        const causeMessage = errorCause?.message || '';
+        const causeCode = errorCause?.code || '';
+        
+        // 检查各种网络连接错误
+        if (errorMessage.includes('EHOSTUNREACH') || 
+            errorMessage.includes('ENOTFOUND') ||
+            errorMessage.includes('ECONNREFUSED') ||
+            errorMessage.includes('No route to host') ||
+            causeMessage.includes('EHOSTUNREACH') ||
+            causeMessage.includes('ENOTFOUND') ||
+            causeMessage.includes('ECONNREFUSED') ||
+            causeMessage.includes('No route to host') ||
+            causeCode === 'EHOSTUNREACH' ||
+            causeCode === 'ENOTFOUND' ||
+            causeCode === 'ECONNREFUSED') {
           return NextResponse.json(
             { 
               error: "无法连接到抠图API服务器",
-              detail: `服务器无法访问 ${apiUrl}，请检查：\n1. API服务器是否在线\n2. 网络连接是否正常\n3. 防火墙设置是否正确`,
+              detail: `服务器无法访问 ${apiUrl}，请检查：\n1. API服务器是否在线\n2. 网络连接是否正常\n3. 防火墙设置是否正确\n4. 端口8000是否已开放`,
             },
             { status: 503 }
           );