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# MongoDB Atlas 配置指南
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## 步骤 1: 创建 MongoDB Atlas 账号
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1. 访问 https://www.mongodb.com/cloud/atlas
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2. 注册免费账号
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3. 创建免费集群 (Free Tier)
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## 步骤 2: 获取连接字符串
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1. 在 Atlas 面板,点击 "Connect"
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2. 选择 "Connect your application"
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3. 复制连接字符串,格式类似:
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```
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mongodb+srv://<username>:<password>@cluster0.xxxxx.mongodb.net/suggestions?retryWrites=true&w=majority
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```
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## 步骤 3: 配置 .env 文件
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编辑项目根目录的 `.env` 文件:
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```
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MONGODB_URI=你的连接字符串
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PORT=3000
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```
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**注意**: 将 `<username>` 和 `<password>` 替换为你的数据库用户名和密码。
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## 步骤 4: 运行项目
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```bash
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npm install
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npm start
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```
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访问 http://localhost:3000
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## API 说明
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- `POST /api/suggestions` - 提交建议
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- `GET /api/suggestions/:id` - 查询建议进度
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