public String download() throws Exception {
LogWriter.println(this.getClass().toString() + ":download下的方法被调用了");
// 创建新的ExportExcel类以创建excel
ExportExcel<YearCountTaxModel> ex = new ExportExcel<YearCountTaxModel>(new YearCountTaxModel());
//
SXSSFWorkbook workbook = new SXSSFWorkbook(300);
if (getSessionUser() == null) {
return "noSession";
}
// 获取记录总数,这里除以40000是为什么
long count =
yearCountTaxService.getAllMessageCount(
user.getUpperDistrict() + user.getDistrictName(), beginyear, endyear)
/ 40000
+ 1;
LogWriter.println("获取的记录数位：" + count);
for (int i = 0; i < count; ++i) {
getAllList(i * 40000, 40000);
// 获取需要下载的数据list
// 获取需要下载的数据list
workbook = ex.creatExcel(workbook, analyList);
}
// 创建输出流
excelFile = ex.downLoadExcel(workbook);
systemLogService.insertSystemLog("3", "下载按年度统计纳税征缴情况", true);
return "excel";
}
public String getAllYearCountTaxByPage() {
// 但是初始显示的时候 不应该是全部
if (beginyear == null) {
beginyear = "2011";
} else {
LogWriter.println("前台传给后台的数据beginyear为：" + beginyear);
}
if (endyear == null) {
endyear = "2013";
} else {
LogWriter.println("前台传给后台的数据endyear为：" + endyear);
}
if (getSessionUser() == null) {
return "noSession";
}
LogWriter.println("用户上级地区:" + user.getUpperDistrict() + "用户本级地区：" + user.getDistrictName());
try {
recordCount =
yearCountTaxService.getAllMessageCount(
user.getUpperDistrict() + user.getDistrictName(), beginyear, endyear);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
json = "请检查是否存在相应的数据库模式";
return "jsonData";
}
if (recordCount != 0) {
int count = (int) (recordCount / pageSize);
pageCount = ((recordCount % pageSize) == 0) ? count : count + 1; // 计算总页数
}
yearCountTaxList =
yearCountTaxService.getAllMessageByPage(
pageNum,
pageSize,
user.getUpperDistrict() + user.getDistrictName(),
beginyear,
endyear);
return "showLessTaxMessage";
}
/**
* 得到数据
*
* @param startnum 数据开始的下标
* @param totalnum 传过来的数据总数
*/
public void getAllList(int startnum, int totalnum) {
String dis = user.getUpperDistrict() + user.getDistrictName();
//
analyList = yearCountTaxService.getExcelList(dis, beginyear, endyear, startnum, totalnum);
}