vue elementui 导出excel

1、命令执行

npm install vue-json-excel

2、ts 引用

import JsonExcel from "vue-json-excel";
@Component({
  name: 'tc-actual-production',
  template: require('./productionActual.template.html'),
  components: {pagination,
    'download-excel':JsonExcel
  }
})

3、html 

        <download-excel
          class = "export-excel-wrapper"
          :data = "json_data"
          :fields = "json_fields"
          header="生产实绩统计"
          name = "生产实绩统计.xls">
          <el-button type="primary" size="small">导出EXCEL</el-button>
        </download-excel>

如果放在 其他按钮后面，需要和其他按钮一排，只需要设置   display：inline  就可以了

4、ts  

设置两个变量的值：

json_fields：列名

json_data：数据

 json_fields:any={
    '列名1': "col1",
    '列名2': "col2",
    '列名3': "col3"  
}
json_data:any[]= [{
  'col1': "内容1",
    'col2': "内容2",
    'col3': "内容3"  
}]

效果：

 组件文档：

Name	Type	Description	Default
data	Array	Data to be exported.
fields	Object	Fields inside the JSON Object that you want to export. If none provided, all properties in the JSON will be exported.
export-fields (exportFields)	Object	Used to fix the problem with other components that use the variable fields, like vee-validate. exportFields works exactly like fields
type	string	Mime type [xls, csv]	xls
name	string	File name to export.	data.xls
header	string/Array	Title(s) for the data. Can be a string (one title) or an array of strings (multiple titles).
title(deprecated)	string/Array	same as header, title is maintained for retro-compatibility purposes but its use is not recommended due to the conflict with the HTML5 title attribute.
footer	string/Array	Footer(s) for the data. Can be a string (one footer) or an array of strings (multiple footers).
default-value (defaultValue)	string	Use as fallback when the row has no field values.	''
worksheet	string	Name of the worksheet tab.	'Sheet1'
fetch	Function	Callback to fetch data before download, if it's set it runs immediately after mouse pressed and before download process. IMPORTANT: only works if no data prop is defined.
before-generate	Function	Callback to call a method right before the generate / fetch data, eg:show loading progress
before-finish	Function	Callback to call a method right before the download box pops out, eg:hide loading progress
stringifyLongNum	Boolean	stringify long number and decimal(solve the problem of loss of digital accuracy), default: false
escapeCsv	Boolean	This escapes CSV values in order to fix some excel problems with number fields. But this will wrap every csv data with =" and ", to avoid that you have to set this prop to false. default: True