feat: 初始化前端和后端项目

- 创建前端项目结构，包括 Vue 3、Uni-app 等相关配置
- 添加后端项目结构，使用 Express 和 TypeORM 连接数据库
- 实现基本的体重记录 CRUD 功能
- 配置项目相关文件，如 .gitignore、.npmrc 等

server/app.js

@@ -0,0 +1,51 @@
+const express = require('express');
+const bodyParser = require('body-parser');
+const typeorm = require('typeorm');
+const app = express();
+const port = 3000;
+
+// 引入 reflect-metadata，这是 TypeORM 的依赖
+require('reflect-metadata');
+
+app.use(bodyParser.json());
+
+// 连接到数据库
+typeorm.createConnection().then(connection => {
+  console.log('数据库连接成功');
+  
+  const weightRecordRepository = connection.getRepository('WeightRecord');
+
+  // 添加体重记录
+  app.post('/api/weight', async (req, res) => {
+    try {
+      const { date, weight, unit } = req.body;
+      const weightRecord = weightRecordRepository.create({ date, weight, unit });
+      await weightRecordRepository.save(weightRecord);
+      res.status(200).send('体重记录成功');
+    } catch (error) {
+      console.error('保存体重记录失败:', error);
+      res.status(500).send('保存体重记录失败');
+    }
+  });
+
+  // 获取所有体重记录
+  app.get('/api/weight', async (req, res) => {
+    try {
+      const weightRecords = await weightRecordRepository.find({
+        order: {
+          date: 'DESC'
+        }
+      });
+      res.status(200).json(weightRecords);
+    } catch (error) {
+      console.error('获取体重记录失败:', error);
+      res.status(500).send('获取体重记录失败');
+    }
+  });
+
+  app.listen(port, () => {
+    console.log(`后端服务运行在 http://localhost:${port}`);
+  });
+}).catch(error => {
+  console.error('数据库连接失败:', error);
+});

server/entity/WeightRecord.js

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+const EntitySchema = require("typeorm").EntitySchema;
+
+module.exports = new EntitySchema({
+    name: "WeightRecord",
+    tableName: "weight_records",
+    columns: {
+        id: {
+            primary: true,
+            type: "int",
+            generated: true
+        },
+        date: {
+            type: "date"
+        },
+        weight: {
+            type: "float"
+        },
+        unit: {
+            type: "varchar",
+            length: 10
+        },
+        createdAt: {
+            type: "timestamp",
+            createDate: true
+        }
+    }
+});

server/ormconfig.json

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+{
+  "type": "mysql",
+  "host": "192.168.25.110",
+  "port": 3306,
+  "username": "root",
+  "password": "mysql_Adkijc",
+  "database": "kuafu_health",
+  "synchronize": true,
+  "logging": false,
+  "entities": ["entity/**/*.js"],
+  "migrations": ["migration/**/*.js"],
+  "subscribers": ["subscriber/**/*.js"],
+  "cli": {
+    "entitiesDir": "entity",
+    "migrationsDir": "migration",
+    "subscribersDir": "subscriber"
+  }
+}

server/package.json

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+{
+  "name": "kuafu-health-backend",
+  "version": "1.0.0",
+  "main": "app.js",
+  "scripts": {
+    "start": "node app.js"
+  },
+  "dependencies": {
+    "express": "^4.17.1",
+    "body-parser": "^1.19.0",
+    "mysql2": "^2.3.3",
+    "reflect-metadata": "^0.1.13",
+    "typeorm": "^0.2.45"
+  }
+}