nodejs 中 excel-export 使用介绍

1. 为了在nodejs 服务器端操作数据导出excel 格式用的

excel-export 包地址：https://github.com/functionscope/Node-Excel-Export

使用方法介绍：（在express 框架中使用为例子）

var express = require('express');
var nodeExcel = require('excel-export');
var app = express();

app.get('/Excel', function(req, res){
    var conf ={};
    conf.stylesXmlFile = "styles.xml";
    conf.cols = [{
        caption:'string',
        type:'string',
        beforeCellWrite:function(row, cellData){
             return cellData.toUpperCase();
        },
        width:28.7109375
    },{
        caption:'date',
        type:'date',
        beforeCellWrite:function(){
            var originDate = new Date(Date.UTC(1899,11,30));
            return function(row, cellData, eOpt){
                if (eOpt.rowNum%2){
                    eOpt.styleIndex = 1;
                }  
                else{
                    eOpt.styleIndex = 2;
                }
                if (cellData === null){
                  eOpt.cellType = 'string';
                  return 'N/A';
                } else
                  return (cellData - originDate) / (24 * 60 * 60 * 1000);
            } 
        }()
    },{
        caption:'bool',
        type:'bool'
    },{
        caption:'number',
         type:'number'              
    }];
    conf.rows = [
        ['pi', new Date(Date.UTC(2013, 4, 1)), true, 3.14],
        ["e", new Date(2012, 4, 1), false, 2.7182],
        ["M&M<>'", new Date(Date.UTC(2013, 6, 9)), false, 1.61803],
        ["null date", null, true, 1.414]  
    ];
    var result = nodeExcel.execute(conf);
    res.setHeader('Content-Type', 'application/vnd.openxmlformats');
    res.setHeader("Content-Disposition", "attachment; filename=" + "Report.xlsx");
    res.end(result, 'binary');
});

app.listen(3000);
console.log('Listening on port 3000');