4.x 就绪

package.json

@@ -26,6 +26,7 @@
     "md5": "^2.3.0",
     "mini-svg-data-uri": "^1.4.3",
     "mysql2": "^2.3.3",
+    "node-xlsx": "^0.17.2",
     "svg-captcha": "^1.4.0",
     "typeorm": "^0.2.41"
   },

src/app/modules/demo/controller/app/excel.ts

@@ -0,0 +1,49 @@
+import { Get, Inject, Post, Provide } from '@midwayjs/decorator';
+import { CoolController, BaseController } from '@cool-midway/core';
+import xlsx from 'node-xlsx';
+import { Context } from 'egg';
+import * as fs from 'fs';
+
+/**
+ * 导入导出
+ */
+@Provide()
+@CoolController()
+export class DemoExcelController extends BaseController {
+  @Inject()
+  ctx: Context;
+
+  /**
+   * 导入
+   */
+  @Post('/import')
+  async import() {
+    // 读取上传上来的文件
+    const file = this.ctx.request.files[0];
+    try {
+      // 解析文件
+      const data = xlsx.parse(file.filepath);
+      console.log(data);
+    } finally {
+      fs.unlinkSync(file.filepath);
+    }
+    return this.ok();
+  }
+
+  /**
+   * 导出
+   */
+  @Get('/export')
+  async export() {
+    const data = [
+      ['姓名', '年龄'],
+      ['啊平', 18],
+      ['江帅', 19],
+    ];
+    const buffer = xlsx.build([{ name: '成员', data: data }]);
+    const fileName = '导出.xlsx';
+    this.ctx.attachment(fileName);
+    this.ctx.status = 200;
+    this.ctx.body = buffer;
+  }
+}