fix: 修复子应用、中间件、异常无法正常挂载的问题

ruoyi-fastapi-backend/middlewares/cors_middleware.py

@@ -1,18 +1,19 @@
+from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
-from server import app
 
 
-# 前端页面url
-origins = [
-    "http://localhost:80",
-    "http://127.0.0.1:80",
-]
+def add_cors_middleware(app: FastAPI):
+    # 前端页面url
+    origins = [
+        "http://localhost:80",
+        "http://127.0.0.1:80",
+    ]
 
-# 后台api允许跨域
-app.add_middleware(
-    CORSMiddleware,
-    allow_origins=origins,
-    allow_credentials=True,
-    allow_methods=["*"],
-    allow_headers=["*"],
-)
+    # 后台api允许跨域
+    app.add_middleware(
+        CORSMiddleware,
+        allow_origins=origins,
+        allow_credentials=True,
+        allow_methods=["*"],
+        allow_headers=["*"],
+    )