Flex 将DataGrid数据导入到Excel中

1.需要导入一个as3xls-1.0.swc库

2.Demo

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
    <mx:Script>  
        <![CDATA[  
            import mx.controls.dataGridClasses.DataGridColumn;  
            import com.as3xls.xls.Cell;  
            import mx.collections.ArrayCollection;  
            import com.as3xls.xls.Sheet; 
            import com.as3xls.xls.ExcelFile;  
            private var fileReference:FileReference;  
            private var xls:Class;  
            private var sheet:Sheet;  
            [Bindable]  
            private var fields:Array = new Array();  
            [Bindable]  
            private var ItemDGDataProvider:ArrayCollection = new ArrayCollection([  
                {name:"Item1",value:"21",qty:"3",cost:"12.21", apples: "1"},  
                {name:"Item2",value:"20",qty:"4",cost:"12.22", apples: "1"},  
                {name:"Item3",value:"22",qty:"5",cost:"12.23", apples: "1"},  
                {name:"Item4",value:"23",qty:"2",cost:"12.24", apples: "1"}  
            ]);  
            
            private function fileReference_Cancel(event:Event):void  
            {  
                fileReference = null;  
            }  
            
            private function exportToExcel():void  
            {  
                sheet = new Sheet();  
                var dataProviderCollection:ArrayCollection = rebateByItemDG.dataProvider as ArrayCollection;  
                var rowCount:int = dataProviderCollection.length;  
                sheet.resize(rowCount + 1,rebateByItemDG.columnCount);  
                var columns:Array = rebateByItemDG.columns;  
                var i:int = 0;  
                for each (var field:DataGridColumn in columns){  
                    fields.push(field.dataField.toString());  
                    sheet.setCell(0,i,field.dataField.toString());  
                    i++;  
                }  
                
                for(var r:int=0; r < rowCount; r++)  
                {  
                    var record:Object = dataProviderCollection.getItemAt(r);  
                    /*insert record starting from row no 2 else  
                    headers will be overwritten*/  
                    insertRecordInSheet(r+1,sheet,record);  
                }  
                var xls:ExcelFile = new ExcelFile();  
                xls.sheets.addItem(sheet);  
                
                var bytes: ByteArray = xls.saveToByteArray();  
                var fr:FileReference = new FileReference();  
                fr.save(bytes,"SampleExport.xls");   
            }  
            private function insertRecordInSheet(row:int,sheet:Sheet,record:Object):void  
            {  
                var colCount:int = rebateByItemDG.columnCount;  
                for(var c:int; c < colCount; c++)  
                {  
                    var i:int = 0;  
                    for each(var field:String in fields){  
                        for each (var value:String in record){  
                            if (record[field].toString() == value)  
                                sheet.setCell(row,i,value);  
                        }  
                        i++;  
                    }  
                }  
            }  
        ]]>  
    </mx:Script>  
    <mx:VBox width="100%" height="100%">  
        <mx:Form>  
            <mx:FormItem label="Export Datagrid items to Excel?" fontWeight="bold">  
                <mx:Form>  
                    <mx:HBox width="100%" verticalAlign="middle">  
                        <mx:DataGrid id="rebateByItemDG" includeInLayout="true" visible="true" dataProvider="{ItemDGDataProvider}" width="100%" editable="true"/>  
                        <mx:Button label="Export To Excel" click="exportToExcel();"/>  
                    </mx:HBox>  
                </mx:Form>  
            </mx:FormItem>  
        </mx:Form>  
    </mx:VBox> 
</mx:Application>