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What is the method for importing excel files in layui?

王林
王林forward
2020-12-07 15:29:553118browse

What is the method for importing excel files in layui?

Let’s take a look at the completed renderings first:

(Related recommendations: layui)

What is the method for importing excel files in layui?

The specific steps are as follows:

First: Import the layui third-party plug-in js, address:

https://fly.layui.com/extend/excel/

1. Introduce the excel.js file into the page:

What is the method for importing excel files in layui?

//引入excel
    layui.config({
        base: 'layui_ext/',
    }).extend({
        excel: 'excel',
    });

2. Monitor the click event of the header toolbar

// 监听头工具栏事件
table.on('toolbar(terminalConfig)', function(obj) {
	var layer = layui.layer;
	// 添加终端
	if(obj.event == 'import'){
		layer.open({
			type : 1,
			shade : false,
			area : [ '350px', '260px' ],
			title : '导入Excel',
			content : $("#ImportExcel"),
			cancel : function() {
					layer.close();
			},
			success : function(layero, index) {
					ImportExcel();
			},
		});
						
	}
//导入Excel结束
});
//监听头工具栏事件结束

3. ImportExcel() method:

//导入方法
function ImportExcel(){
	var $ = layui.jquery
	  ,upload = layui.upload;
	  var uploadInst = upload.render({
		  elem: '#importExcel',
		  /*method: 'POST',*/
		  url: basePath + 'PowerUser/importPowerUserData.action',
		  accept: 'file', //普通文件
		  exts: 'xls|excel|xlsx', //导入表格
		  auto: false,  //选择文件后不自动上传
		  before: function (obj) {
			  layer.load(); //上传loading
		  },
		  choose: function (obj) {// 选择文件回调
			  var files = obj.pushFile();
			  var fileArr = Object.values(files);// 注意这里的数据需要是数组,所以需要转换一下
			  //console.debug(fileArr)
			  // 用完就清理掉,避免多次选中相同文件时出现问题
			  for (var index in files) {
				  if (files.hasOwnProperty(index)) {
					  delete files[index];
				  }
			  }
			  uploadExcel(fileArr); // 如果只需要最新选择的文件,可以这样写: uploadExcel([files.pop()])
		  },
		  error : function(){
			  setTimeout(function () {
				  layer.msg("上传失败!", {
						icon : 1
				});
				//关闭所有弹出层
				layer.closeAll(); //疯狂模式,关闭所有层
			  },1000);
		  }
	  });
}

4. uploadExcel() method:

function uploadExcel(files) {
    try {
    	var excel = layui.excel;
        excel.importExcel(files, {
            // 读取数据的同时梳理数据
            fields: {
            	'tId' : 'A',
				'inport' : 'B',
				'state' : 'C',
				'householdNumber' : 'D',
				'accountName' : 'E',
				'phone' : 'F'
            }
        }, function (data) {
            var arr = new Array();
            for(i = 1; i < data[0].Sheet1.length; i++){
            	var tt = {
                    	cId : selectConcentrator,
                    	tId : data[0].Sheet1[i].tId,
                    	inport: data[0].Sheet1[i].inport,
                    	state: data[0].Sheet1[i].state,
                    	householdNumber: data[0].Sheet1[i].householdNumber,
                    	accountName: data[0].Sheet1[i].accountName,
                    	phone: data[0].Sheet1[i].phone,
                    };
            	arr.push(tt);
            }
            
            $.ajax({
                async: false,
                url: basePath + &#39;PowerUser/importPowerUserData.action&#39;,
                type: &#39;post&#39;,
                dataType: "json",
                contentType: "application/x-www-form-urlencoded",
                data: {
                	data : JSON.stringify(arr)
                },
                success: function (data) {
                	if(data.success){
                		layer.msg(data.message);
                		setTimeout(function () {
                			layer.closeAll(); //疯狂模式,关闭所有层
                		},1000);
                		//表格导入成功后,重载表格
                		tableIns.reload(&#39;testTerminalConfigReload&#39;,{
                             url : basePath + &#39;PowerUser/PowerUserDataTable.action&#39;,
                             page : {
     							limit : 10, // 初始 每页几条数据
     							limits : [ 10, 20, 30 ]
     						// 可以选择的 每页几条数据
     						},
     						where : {
     							cId : selectConcentrator,
     							tId : selectTerminal
     						},
     						parseData: function(res){ //res 即为原始返回的数据
     						    return {
     						      "code": 0, //解析接口状态
     						      "msg": res.message, //解析提示文本
     						      "count": res.total, //解析数据长度
     						      "data": res.data //解析数据列表
     						    };
     						}
                         }, &#39;data&#39;);
                	}else{
                		//表格导入失败后,重载文件上传
                		layer.alert(data.error+"请重新上传",{icon : 2});
                	}
                },
                error: function (msg) {
                    layer.msg(&#39;请联系管理员!!!&#39;);
                }
            });
        });
    } catch (e) {
        layer.alert(e.message);
    }
}

Method 4 is to read the data and sort out the data. Parse the Excel data and then transfer the data to the backend. The backend parses the data and then inserts it into the database. After success, "Excel import successful" is returned to the front end. After the Excel import is successful, reload the table and the data can be displayed in the table.

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