finished to b

Community_backend/.env

@@ -1,5 +1,5 @@
 PORT=3000
-NODE_ENV=production
+NODE_ENV=development
 MONGODB_URI=mongodb+srv://PetDerma:ECNU@cluster0.wdid0qc.mongodb.net/PetDerma?retryWrites=true&w=majority&appName=Cluster0
 JWT_SECRET=ab12cd34ef56a7890b1c2d3e4f5061728394a5b6c7d8e9fa0abbccddeeff1122
 LOCAL_STORAGE_PATH=./uploads

Community_backend/app.js

@@ -1,4 +1,5 @@
 const express = require("express");
+const path = require("path");
 const cors = require("cors");
 const helmet = require("helmet");
 const morgan = require("morgan");
@@ -16,6 +17,8 @@ const uploadRoutes = require("./routes/upload");
 const imageRoutes = require("./routes/images");
 const petRoutes = require("./routes/pets");
 const healthRoutes = require("./routes/health");
+const doctorRoutes = require("./routes/doctor");
+const institutionRoutes = require("./routes/institution");
 
 // 导入中间件
 const { handleUploadError } = require("./middleware/upload");
@@ -58,7 +61,7 @@ setTimeout(async () => {
 /* ------------------------------------------------------------------
  ✅ 安全、CORS、日志、限流中间件（位置保持不变）
 ------------------------------------------------------------------- */
-app.use(helmet());
+app.use(helmet({ contentSecurityPolicy: false }));
 
 app.use(
   cors({
@@ -143,13 +146,55 @@ app.get("/health", (req, res) => {
   });
 });
 
+// B 端预览页面
+app.get("/doctor-preview", (req, res) => {
+  res.sendFile(path.join(__dirname, "..", "doctor-preview.html"));
+});
+app.get("/doctor-preview.css", (req, res) => {
+  res.sendFile(path.join(__dirname, "..", "doctor-preview.css"));
+});
+app.get("/doctor-preview.js", (req, res) => {
+  res.sendFile(path.join(__dirname, "..", "doctor-preview.js"));
+});
+
+// 机构端预览页面
+app.get("/institution-preview", (req, res) => {
+  res.sendFile(path.join(__dirname, "..", "institution-preview.html"));
+});
+
+// 首页预览页面（入口1：机构端入口）
+app.get("/home-preview", (req, res) => {
+  res.sendFile(path.join(__dirname, "..", "home-preview.html"));
+});
+
+// 地图导航页预览（入口2：发送AI报告给机构）
+app.get("/map-preview", (req, res) => {
+  res.sendFile(path.join(__dirname, "..", "map-preview.html"));
+});
+
+// 诊断结果页预览（入口3：预约线下复核）
+app.get("/result-preview", (req, res) => {
+  res.sendFile(path.join(__dirname, "..", "result-preview.html"));
+});
+
+// 主页入口（首页重定向）
+app.get("/", (req, res) => {
+  res.redirect("/home-preview");
+});
+
 app.use("/api/auth", authRoutes);
 app.use("/api/posts", postRoutes);
 app.use("/api/interactions", interactionRoutes);
 app.use("/api/upload", uploadLimiter, uploadRoutes);
 app.use("/api/pets", petRoutes);
 app.use("/api/health", healthRoutes);
 
+// 医生端 API
+app.use("/api/doctor", doctorRoutes);
+
+// 机构端 API
+app.use("/api/institution", institutionRoutes);
+
 // 图片路由
 app.use(
   "/api/images",

Community_backend/config/database.js

@@ -1,17 +1,37 @@
 const mongoose = require('mongoose');
 
+let memoryServer = null;
+
 // MongoDB连接配置
 const connectDB = async () => {
   try {
-    const conn = await mongoose.connect(process.env.MONGODB_URI || 'mongodb://localhost:27017/PetDerma_Community', {
-      useNewUrlParser: true,
-      useUnifiedTopology: true,
+    const uri = process.env.MONGODB_URI || 'mongodb://localhost:27017/PetDerma_Community';
+    console.log(`🔌 尝试连接 MongoDB: ${uri.replace(/\/\/.*@/, '//***@')}`);
+
+    const conn = await mongoose.connect(uri, {
+      serverSelectionTimeoutMS: 5000,
     });
 
-    console.log(`MongoDB Connected: ${conn.connection.host}`);
+    console.log(`✅ MongoDB 已连接: ${conn.connection.host}`);
+    return conn;
   } catch (error) {
-    console.error('MongoDB connection error:', error);
-    process.exit(1);
+    console.error('❌ 远程 MongoDB 连接失败:', error.message);
+    console.log('🔄 尝试启动本地内存数据库...');
+
+    try {
+      const { MongoMemoryServer } = require('mongodb-memory-server');
+      memoryServer = await MongoMemoryServer.create();
+      const localUri = memoryServer.getUri();
+
+      console.log(`📦 内存数据库已启动: ${localUri}`);
+
+      const conn = await mongoose.connect(localUri);
+      console.log(`✅ 内存 MongoDB 已连接: ${conn.connection.host}`);
+      return conn;
+    } catch (memError) {
+      console.error('❌ 内存数据库启动失败:', memError.message);
+      process.exit(1);
+    }
   }
 };
 
@@ -31,6 +51,9 @@ mongoose.connection.on('disconnected', () => {
 // 优雅关闭
 process.on('SIGINT', async () => {
   await mongoose.connection.close();
+  if (memoryServer) {
+    await memoryServer.stop();
+  }
   console.log('MongoDB connection closed through app termination');
   process.exit(0);
 });