后端链接数据库

.gitignore

@@ -1,4 +1,6 @@
 /.idea/
-/wxmp/package-lock.json
 */dist/
 */node_modules/
+*/package-lock.json
+/server/logs/
+/server/run/

server/app.js

@@ -0,0 +1,6 @@
+module.exports = app => {
+  app.beforeStart(async () => {
+    const mysqlConfig = await app.configCenter.fetch("mysql")
+    app.database = app.mysql.createInstance(mysqlConfig)
+  })
+}

server/app/controller/home.js

@@ -0,0 +1,9 @@
+const Controller = require('egg').Controller;
+
+class HomeController extends Controller {
+  async index() {
+    this.ctx.body = 'Hello world';
+  }
+}
+
+module.exports = HomeController;

server/app/router.js

@@ -0,0 +1,4 @@
+module.exports = (app) => {
+  const { router, controller } = app;
+  router.get('/', controller.home.index);
+};

server/app/service/db.js

@@ -0,0 +1,31 @@
+const Service = require("egg").Service
+
+class DbService extends Service {
+  async addOrUpdate(table, form) {
+    let result
+    if (!form.id) {//创建
+      result = await this.app.mysql.insert(table, form)
+    } else {//更新
+      result = await this.app.mysql.update(table, form)
+    }
+    return result === 1
+  }
+
+  async delete(table, id) {
+    await this.app.mysql.delete(table, {id})
+  }
+
+  async detail(table, id) {
+    return await this.app.mysql.get(table, {id})
+  }
+
+  async list(table, params = {}) {
+    return await this.app.mysql.select(table, {
+      where: params,
+      limit: params?.size || 10, // 返回数据量
+      offset: Math.max(params?.current - 1, 0), // 数据偏移量
+    })
+  }
+}
+
+module.exports = DbService

server/config/config.default.js

@@ -0,0 +1,19 @@
+exports.keys = "kubbo and flora"
+exports.mysql = {
+  client: {
+    // host
+    host: '192.168.1.87',
+    // 端口号
+    port: '3306',
+    // 用户名
+    user: 'root',
+    // 密码
+    password: 'Cwy@2019',
+    // 数据库名
+    database: 'dvcp_oms_dev',
+  },
+  // 是否加载到 app 上，默认开启
+  app: true,
+  // 是否加载到 agent 上，默认关闭
+  agent: false,
+}

server/config/plugin.js

@@ -0,0 +1,4 @@
+exports.mysql = {
+  enable: true,
+  package: 'egg-mysql'
+}

server/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "buy-server",
+  "version": "1.0.0",
+  "description": "和老婆的创业项目",
+  "scripts": {
+    "dev": "egg-bin dev"
+  },
+  "keywords": [
+    "egg",
+    "kubbo"
+  ],
+  "author": "kubbo",
+  "license": "ISC",
+  "dependencies": {
+    "egg": "^3.9.2",
+    "egg-mysql": "^3.3.0"
+  },
+  "devDependencies": {
+    "egg-bin": "^5.9.0"
+  }
+}