Flex前端+Java后台，要将Flex界面中AdvancedDataGrid的数据导出成Excel文件。有2种方法：?
1.直接在前台导出。?
??? 使用开源项目as3xls，下载个解决了中文乱码的as3xlsUTF8.swc包，加到Flex工程的引用库中。?
??? AS代码，点击“导出Excel”按钮后的函数：
- var?sheet:Sheet?=?new?Sheet(); ??
- private?function?export2ExcelHandel(e:MouseEvent):void??
- { ??
- ??????
- ????var?excelFile:ExcelFile=new?ExcelFile(); ??
- ????var?arr:ArrayCollection=myTable.dataProvider?as?ArrayCollection; ??
- ????for(var?i:int=0;?i<arr.length;?i++) ??
- ????{ ??
- ????????var?obj:Object=arr[i]; ??
- ????????var?j:0; ??
- ????????for(var?key:String?in?obj) ??
- ????????{ ??
- ????????????excelFile.sheets.addItem(generateSheet(0,j,key));??? ??
- ????????????excelFile.sheets.addItem(generateSheet(i,obj[key])); ??
- ????????????j++; ??
- ????????} ??
- ????}??????? ??
- ????var?mbytes:ByteArray=excelFile.saveToByteArray(); ??
- ????var?file:FileReference=new?FileReference(); ??
- ????file.save(mbytes,"测试文件.xls");? ??
- } ??
- ???????????? ??
- function?generateSheet(i:int,j:if(!sheet){???? ??
- ????????sheet?=?new?Sheet();???? ??
- ????????sheet.resize(10,10);???? ??
- ????}???? ??
- ????sheet.setCell(i,?j,?String(o));???? ??
- return?sheet;???? ??
- }??????
new?Sheet();??
- private?function?export2ExcelHandel(e:MouseEvent):void??
- {??
- ??????
- ????var?excelFile:ExcelFile=new?ExcelFile();??
- ????var?arr:ArrayCollection=myTable.dataProvider?as?ArrayCollection;??
- ????for(var?i:int=0;?i<arr.length;?i++)??
- ????{??
- ????????var?obj:Object=arr[i];??
- ????????var?j:0;??
- ????????for(var?key:String?in?obj)??
- ????????{??
- ????????????excelFile.sheets.addItem(generateSheet(0,key));?????
- ????????????j++;??
- ????????}??
- ????}?????????
- ????var?mbytes:ByteArray=excelFile.saveToByteArray();??
- ????var?file:FileReference=new?FileReference();??
- "测试文件.xls");???
- }??
- ??????????????
- function?generateSheet(i:int,j:if(!sheet){??????
- ????????sheet?=?new?Sheet();??????
- ????????sheet.resize(10,10);??????
- ????}??????
- return?sheet;??????
- }??????
FileReference的save方法在Flash10才支持，?
在Flex工程上右键，属性，Flex Conpiler中把Require Flash Player version:填为10.0.0；在Flex Build Path中加入playerglobal.swc?
，路径为…sdks3.2.0frameworkslibsplayer10playerglobal.swc?
2.通过调JSP或Servlet导出。?
AS代码：
public?static?function?ToExcel(dg:AdvancedDataGrid,name:String) ??
//调用JSP???
????var?url:String="http://localhost:8080/XXX/Export/ExcelExport.jsp"; ??
????var?variables:URLVariables?=?new?URLVariables();? ??
????variables.htmltable?=?convertDGToHTMLTable(dg); ??
????var?u:URLRequest?=?new?URLRequest(url); ??
????u.data?=?variables; ??
????u.method?=?URLRequestMethod.POST; ??
????navigateToURL(u,"_self");? ??
??
private?static?function?convertDGToHTMLTable(dg:AdvancedDataGrid):String?{ ??
//Set?default?values???
????var?font:String?=?dg.getStyle('fontFamily'); ??
????var?size:String?=?dg.getStyle('fontSize'); ??
????var?str:String?=?''; ??
????var?colors:String?=?''; ??
????var?style:String?=?'style="font-family:'+font+';font-size:'+size+'pt;"';???????????????? ??
????var?hcolor:Array; ??
??????? ??
//Retrieve?the?headercolor???
if(dg.getStyle("headerColor")?!=?undefined)?{ ??
????????hcolor?=?[dg.getStyle("headerColor")]; ??
????}?else?{ ??
????????hcolor?=?dg.getStyle("headerColors"); ??
????}???????????????? ??
????str+=?'<head><meta?http-equiv="Content-Type"?content="text/htm;?charset=utf-8"></head><table?width="'+dg.width+'"?border="1"><thead><tr?width="'+dg.width+'"?style="background-color:#'?+Number((hcolor[0])).toString(16)+'">'; ??
int?=?0;i<dg.columns.length;i++)?{ ??
????????colors?=?dg.getStyle("themeColor");???????????? ??
if(dg.columns[i].headerText?!=?undefined)?{ ??
????????????str+="<th?"+style+">"+dg.columns[i].headerText+"</th>";?????????????????? ??
????????}? ????????????str+=?"<th?"+style+">"+dg.columns[i].dataField+"</th>"; ??
????} ??
????str?+=?"</tr></thead><tbody>"; ??
????colors?=?dg.getStyle("alternatingRowColors"); ??
for(var?j:int?=0;j<dg.dataProvider.length;j++)? ??
????{???????????????????? ??
????????str+="<tr?width=""+Math.ceil(dg.width)+"">"; ??
??????????????? ??
for(var?k:0;?k?<?dg.columns.length;?k++)?{ ??
????????????if(dg.dataProvider.getItemAt(j)?!=?undefined?&&?dg.dataProvider.getItemAt(j)?!=?null)?{?????????????? ??
????????????????if(dg.columns[k].labelFunction?!=?undefined)?{ ??
????????????????????str?+=?"<td?width=""+Math.ceil(dg.columns[k].width)+""?"+style+">"+dg.columns[k].labelFunction(dg.dataProvider.getItemAt(j),dg.columns[k].dataField)+"</td>"; ??
????????????????}? ??
????????????????????str?+=?"<td?width=""+Math.ceil(dg.columns[k].width)+""?"+style+">"+dg.dataProvider.getItemAt(j)[dg.columns[k].dataField]+"</td>"; ??
????????????????} ??
????????????} ??
????????str?+=?"</tr>"; ??
????str+="</tbody></table>"; ??
return?str; ??
}??
public?static?function?ToExcel(dg:AdvancedDataGrid,name:String)??
//调用JSP??
????var?url:String="http://localhost:8080/XXX/Export/ExcelExport.jsp";??
????var?variables:URLVariables?=?new?URLVariables();???
????variables.htmltable?=?convertDGToHTMLTable(dg);??
????var?u:URLRequest?=?new?URLRequest(url);??
????u.data?=?variables;??
????u.method?=?URLRequestMethod.POST;??
"_self");???
private?static?function?convertDGToHTMLTable(dg:AdvancedDataGrid):String?{??
//Set?default?values??
????var?font:String?=?dg.getStyle('fontFamily');??
????var?size:String?=?dg.getStyle('fontSize');??
????var?str:String?=?'';??
????var?colors:String?=?'';??
????var?style:String?=?'style="font-family:'+font+';font-size:'+size+'pt;"';??????????????????
????var?hcolor:Array;??
?????????
//Retrieve?the?headercolor??
if(dg.getStyle("headerColor")?!=?undefined)?{??
????????hcolor?=?[dg.getStyle("headerColor")];??
????}?else?{??
????????hcolor?=?dg.getStyle("headerColors");??
????}??????????????????
????str+=?'<head><meta?http-equiv="Content-Type"?content="text/htm;?charset=utf-8"></head><table?width="'+dg.width+'"?border="1"><thead><tr?width="'+dg.width+'"?style="background-color:#'?+Number((hcolor[0])).toString(16)+'">';??
int?=?0;i<dg.columns.length;i++)?{??
????????colors?=?dg.getStyle("themeColor");??????????????
if(dg.columns[i].headerText?!=?undefined)?{??
????????????str+="<th?"+style+">"+dg.columns[i].headerText+"</th>";????????????????????
????????}? ????????????str+=?"<th?"+style+">"+dg.columns[i].dataField+"</th>";??
????}??
????str?+=?"</tr></thead><tbody>";??
????colors?=?dg.getStyle("alternatingRowColors");??
for(var?j:int?=0;j<dg.dataProvider.length;j++)???
????{??????????????????????
????????str+="<tr?width=""+Math.ceil(dg.width)+"">";??
?????????????????
for(var?k:0;?k?<?dg.columns.length;?k++)?{??
????????????if(dg.dataProvider.getItemAt(j)?!=?undefined?&&?dg.dataProvider.getItemAt(j)?!=?null)?{????????????????
????????????????if(dg.columns[k].labelFunction?!=?undefined)?{??
????????????????????str?+=?"<td?width=""+Math.ceil(dg.columns[k].width)+""?"+style+">"+dg.columns[k].labelFunction(dg.dataProvider.getItemAt(j),dg.columns[k].dataField)+"</td>";??
????????????????}???
????????????????????str?+=?"<td?width=""+Math.ceil(dg.columns[k].width)+""?"+style+">"+dg.dataProvider.getItemAt(j)[dg.columns[k].dataField]+"</td>";??
????????????????}??
????????????}??
????????str?+=?"</tr>";??
????str+="</tbody></table>";??
return?str;??
}??
ExcelExport.jsp放在后台XXX工程的WebRoot下的Export文件夹中。?
ExcelExport.jsp：
<%@?page?language="java"%> ??
<%@?page?contentType="application/msexcel;charset=UTF-8"??
????pageEncoding="UTF-8"%> ??
<% ??
request.setCharacterEncoding("UTF-8"); ??
??
response.setHeader("Content-disposition","attachment;?filename=excel.xls"); ??
response.setCharacterEncoding("UTF-8"); ??
String?str?=?request.getParameter("htmltable"); ??
out.print(str); ??
%> ?
