文件下载综合 20%

api/app/lib/controllers/data/index.js

@@ -0,0 +1,36 @@
+'use strict';
+
+const { simpleExcelDown } = require('../../../../utils/xlsxDownload');
+
+async function dataExport (ctx) {
+    try {
+        // const models = ctx.fs.dc.models;
+        // const { userId } = ctx.fs.api
+        // const { ids } = ctx.query;
+
+        // const exportData = await models.BusCar.destroy({
+        //     where: {
+        //         id: { $in: ids.split(',') }
+        //     }
+        // })
+
+        // const fileName = `摄像头信息列表_${userId}_${moment().format('YYYYMMDDHHmmss')}` + '.csv'
+        // const filePath = await simpleExcelDown({ data: exportData, header, fileName: fileName })
+        // const fileData = fs.readFileSync(filePath);
+
+        // ctx.status = 200;
+        // ctx.set('Content-Type', 'application/x-xls');
+        // ctx.set('Content-disposition', 'attachment; filename=' + encodeURI(fileName));
+        // ctx.body = fileData;
+    } catch (error) {
+        ctx.fs.logger.error(`path: ${ctx.path}, error: ${error}`);
+        ctx.status = 400;
+        ctx.body = {
+            message: typeof error == 'string' ? error : undefined
+        }
+    }
+}
+
+module.exports = {
+    dataExport
+};

api/app/lib/routes/data/index.js

@@ -7,9 +7,14 @@ const project = require('../../controllers/data/project');
 const overspeed = require('../../controllers/data/overspeed');
 const bus = require('../../controllers/data/bus');
 const publicity = require('../../controllers/data/publicity');
+const data = require('../../controllers/data');
 
 module.exports = function (app, router, opts) {
 
+    // 数据导出
+    app.fs.api.logAttr['GET/data/export'] = { content: '导出数据', visible: true };
+    router.get('/data/export', data.dataExport);
+
     // 运政 
     //客运车
     async function setVehicleType (ctx, next) {

api/utils/xlsxDownload.js

@@ -0,0 +1,77 @@
+'use strict';
+const fs = require('fs');
+const xlsx = require('better-xlsx');
+const path = require('path')
+const moment = require('moment')
+
+//递归创建目录 同步方法  
+async function makeDir (dir) {
+    if (!fs.existsSync(dir)) {
+        makeDir(path.dirname(dir))
+        fs.mkdirSync(dir, function (err) {
+            if (err) {
+                throw err
+            }
+        });
+    }
+}
+
+async function simpleExcelDown ({ data = [], header = [], fileName = moment().format('YYYY-MM-DD HH:mm:ss') } = {}) {
+    const fileDirPath = path.join(__dirname, `../../downloadFiles`)
+    makeDir(fileDirPath)
+    const file = new xlsx.File();
+    const sheet_1 = file.addSheet('sheet_1');
+
+    // header
+    const headerStyle = new xlsx.Style();
+    headerStyle.align.h = 'center';
+    headerStyle.align.v = 'center';
+    headerStyle.border.right = 'thin';
+    headerStyle.border.rightColor = '#000000';
+    headerStyle.border.bottom = 'thin';
+    headerStyle.border.bottomColor = '#000000';
+
+    const headerRow = sheet_1.addRow();
+    const indexCell = headerRow.addCell();
+    indexCell.value = '序号'
+    indexCell.style = headerStyle
+    for (let h of header) {
+        const cell = headerRow.addCell();
+        cell.value = h.title;
+        cell.style = headerStyle
+    }
+
+    // data
+    const style = new xlsx.Style();
+    style.align.h = 'left';
+    style.align.v = 'center';
+    style.border.right = 'thin';
+    style.border.rightColor = '#000000';
+    style.border.bottom = 'thin';
+    style.border.bottomColor = '#000000';
+    for (let i = 0; i < data.length; i++) {
+        const row = sheet_1.addRow();
+        const indexCell = row.addCell();
+        indexCell.value = i + 1
+        indexCell.style = headerStyle
+        for (let h of header) {
+            const cell = row.addCell();
+            cell.value = data[i][h.key];
+            cell.style = style
+        }
+    }
+
+    const savePath = path.join(fileDirPath, fileName)
+    await new Promise(function (resolve, reject) {
+        file.saveAs()
+            .pipe(fs.createWriteStream(savePath))
+            .on('finish', () => {
+                resolve()
+            });
+    })
+    return savePath
+}
+module.exports = {
+    simpleExcelDown,
+    makeDir
+}