需求：
完成一个简单excel的生成和导出
前台代码：
var flightStart = $("#flightDate1").val();
var flightEnd = $("#flightDate2").val();
var segment = $("#segment").val();
var flightNo = $("#flightNo").val();
var isAuto = $("#isAuto").val();
var isEffect = $("#isEffect").val();
var autocap = $("#autocap").val();
var requestPath = "<%=path%>/pwr/assist/exportThreshold.action?speType.isEffect="+isEffect+"&speType.isAuto="+isAuto ;
if(flightStart!="" && flightStart!= null){
requestPath = requestPath +"&speType.flightStart="+flightStart ;
}
if(flightEnd!="" && flightEnd!= null){
requestPath = requestPath +"&speType.flightEnd="+flightEnd ;
}
if(segment!="" && segment!= null){
requestPath = requestPath +"&speType.segment="+segment ;
}
if(flightNo!="" && flightNo!= null){
requestPath = requestPath +"&speType.flightNo="+flightNo ;
}
if(autocap!="" && autocap!= null){
requestPath = requestPath +"&speType.autocap="+autocap ;
}
form1.action= requestPath ;
$("#form1").submit();
//window.location.href=requestPath;
后台代码：
public String exportThreshold() throws Exception{
try
{
List<SpeFlightType> resultlist = thresholdService.getSpeFlightTypeList(speType);
OutputStream os = response.getOutputStream();// 取得输出流
response.reset();// 清空输出流
response.setHeader("Content-disposition", "attachment; filename=result.xls");// 设定输出文件头
response.setContentType("application/msexcel");// 定义输出类型
WritableWorkbook wbook = Workbook.createWorkbook(os); // 建立excel文件
WritableSheet wsheet = wbook.createSheet("子阀值数据", 0); // sheet名称
//表头列名
String [] titles ={"开始日期" , "结束日期" , "航班号" , "航段" , "自动收放舱" ,"是否生效" ,
"舱位序列" , "阀值类型" , "是否加座位" ,"操作时间", "优先级" ,"对比航班号" ,"对比时刻区间" ,
"对比航空公司","比对方式" ,"客座率差值区间" ,"折扣率差值区间" ,"周期" ,"提前天数" ,"状态" } ;
for(int i = 0 ; i < titles.length ; i++){
Label label = new Label(i, 0,titles[i] );
wsheet.addCell(label);
}
int i = 1 ;//行数控制
if(resultlist.size()>0){
SpeFlightType speFlightType = null ;
for (int j = 0 ; j < resultlist.size() ; j ++){
speFlightType = resultlist.get(j);
TurnListToSet getList = new TurnListToSet();
List kzList = getList.getKZlist(speFlightType.getKeZuoList(),true);
List tbList = getList.getTBlist(speFlightType.getTongBiList(),true);
//竟比子阀值写入EXCEL
if(kzList.size()>0){
for(int m = 0 ; m < kzList.size() ; m++){
ThreshKeZuoEntity threshKeZuoEntity = (ThreshKeZuoEntity)kzList.get(m);
int k = createNewLine(wsheet, i, speFlightType, "1") ;
wsheet.addCell(new Label(k++, i, ""+threshKeZuoEntity.getPriority()));
wsheet.addCell(new Label(k++, i, threshKeZuoEntity.getFlightNo()));
String compareDate = "" ;
if(threshKeZuoEntity.getTimeSpan1()!=null){
compareDate = threshKeZuoEntity.getTimeSpan1();
}
if(threshKeZuoEntity.getTimeSpan2()!=null){
compareDate = compareDate+"-"+ threshKeZuoEntity.getTimeSpan2();
}
wsheet.addCell(new Label(k++, i, compareDate));
wsheet.addCell(new Label(k++, i, threshKeZuoEntity.getIncludeAirline()));
if("1".equals(threshKeZuoEntity.getRateType()) ){
wsheet.addCell(new Label(k++, i, "最低"));
}else if("2".equals(threshKeZuoEntity.getRateType()) ){
wsheet.addCell(new Label(k++, i, "平均"));
}else if("3".equals(threshKeZuoEntity.getRateType()) ){
wsheet.addCell(new Label(k++, i, "最高"));
}
wsheet.addCell(new Label(k++, i,threshKeZuoEntity.getDiscountRange() ));
wsheet.addCell(new Label(k++, i,threshKeZuoEntity.getDiscount() ));
wsheet.addCell(new Label(k++, i,threshKeZuoEntity.getWeek() ));
wsheet.addCell(new Label(k++, i,threshKeZuoEntity.getAheadDate() ));
wsheet.addCell(new Label(k++, i, "1".equals(threshKeZuoEntity.getIsEffect()) ? "生效":"未生效"));
i++;
}
}
//同比子阀值写入EXCEL
if(tbList.size()>0){
for(int m = 0 ; m < kzList.size() ; m++){
ThreshTongBiEntity threshTongBiEntity = (ThreshTongBiEntity)tbList.get(m);
int k = createNewLine(wsheet, i, speFlightType, "2") ;
wsheet.addCell(new Label(k++, i, ""+threshTongBiEntity.getPriority()));
wsheet.addCell(new Label(k++, i, ""));
wsheet.addCell(new Label(k++, i, ""));
wsheet.addCell(new Label(k++, i, ""));
wsheet.addCell(new Label(k++, i, ""));
wsheet.addCell(new Label(k++, i,threshTongBiEntity.getKezuolv() ));
wsheet.addCell(new Label(k++, i,threshTongBiEntity.getDiscount() ));
wsheet.addCell(new Label(k++, i,threshTongBiEntity.getWeek() ));
wsheet.addCell(new Label(k++, i,threshTongBiEntity.getAheadDate() ));
wsheet.addCell(new Label(k++, i, "1".equals(threshTongBiEntity.getIsEffect()) ? "生效":"未生效"));
i++;
}
}
if(tbList.size() == 0 && kzList.size()==0){
createNewLine(wsheet, i, speFlightType ,"3") ;
i++;
}
}
speFlightType = null;
LOG.info("export into excel success and has "+ i +" row export. ");
}
// 主体内容生成结束
wbook.write(); // 写入文件
wbook.close();
os.close(); // 关闭流
return null;
}
catch(Exception ex){
ex.printStackTrace();
throw new Exception();
}
}
/**
*
* @param wsheet
* @param i 传入写到第几行
* @param speFlightType
* @param type
* @return 返回已经写到excel的第几列
* @throws RowsExceededException
* @throws WriteException
*
*/
private int createNewLine(WritableSheet wsheet , int i , SpeFlightType speFlightType , String type) throws RowsExceededException, WriteException{
int j = 0 ;
wsheet.addCell(new Label(j++, i, speFlightType.getFlightStart()));
wsheet.addCell(new Label(j++, i, speFlightType.getFlightEnd()));
wsheet.addCell(new Label(j++, i, speFlightType.getFlightNo()));
wsheet.addCell(new Label(j++, i, speFlightType.getSegment()));
wsheet.addCell(new Label(j++, i, "1".equals(speFlightType.getIsAuto()) ? "是":"否"));
wsheet.addCell(new Label(j++, i, "1".equals(speFlightType.getIsEffect()) ? "生效":"作废"));
wsheet.addCell(new Label(j++, i, speFlightType.getClsSqe()));
wsheet.addCell(new Label(j++, i, "1".equals(type) ? "竞比阀值": "2".equals(type) ? "进度阀值" : "没有子阀值"));
wsheet.addCell(new Label(j++, i, "1".equals(speFlightType.getAutocap()) ? speFlightType.getCapnum():"0"));
wsheet.addCell(new Label(j++, i, new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(speFlightType.getCreateDate()))) ;
return j ;
}
