Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.alphacell.controller; import com.alphacell.model.Cadena; import com.alphacell.repository.ConfigRepository; import com.alphacell.util.jsf.FacesUtil; import org.apache.poi.hssf.usermodel.HSSFDateUtil; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.Row; import org.primefaces.event.FileUploadEvent; import java.io.IOException; import java.io.InputStream; import java.io.Serializable; import java.util.*; import javax.annotation.PostConstruct; import javax.faces.application.FacesMessage; import javax.faces.view.ViewScoped; import javax.inject.Inject; import javax.inject.Named; /** * * @author luis */ @Named @ViewScoped public class CargarDatosBean implements Serializable { private static final long serialVersionUID = 1L; private List<Cadena> cmbCadenas; private Cadena selectedCadena; private Date fechaInventario; private Date fechaVenta; @Inject private ConfigRepository configRepository; @PostConstruct public void init() { this.cmbCadenas = this.configRepository.findAll(); } public void handleFileUpload(FileUploadEvent event) { if (event.getFile().equals(null)) { FacesUtil.addInfoMessage("El archivo es null"); } InputStream file; HSSFWorkbook workbook = null; try { file = event.getFile().getInputstream(); workbook = new HSSFWorkbook(file); } catch (IOException e) { FacesUtil.addErrorMessage("Error Leyendo archivo : " + e); } HSSFSheet sheet = workbook.getSheetAt(1); Iterator<Row> rowIterator = sheet.iterator(); Calendar calendar = new GregorianCalendar(); while (rowIterator.hasNext()) { Row row = rowIterator.next(); Iterator<Cell> cellIterator = row.cellIterator(); //Job job = new Job(); while (cellIterator.hasNext()) { Cell cell = cellIterator.next(); switch (cell.getCellType()) { case Cell.CELL_TYPE_NUMERIC: if (HSSFDateUtil.isCellDateFormatted(cell) || HSSFDateUtil.isCellInternalDateFormatted(cell)) { calendar.setTime(cell.getDateCellValue()); } else { System.out.print(cell.getNumericCellValue() + "\t\t"); } break; case Cell.CELL_TYPE_STRING: System.out.print(cell.getStringCellValue() + "\t\t"); break; } } } } public List<Cadena> getCmbCadenas() { return cmbCadenas; } public void setCmbCadenas(List<Cadena> cmbCadenas) { this.cmbCadenas = cmbCadenas; } public Cadena getSelectedCadena() { return selectedCadena; } public void setSelectedCadena(Cadena selectedCadena) { this.selectedCadena = selectedCadena; } public Date getFechaInventario() { return fechaInventario; } public void setFechaInventario(Date fechaInventario) { this.fechaInventario = fechaInventario; } public Date getFechaVenta() { return fechaVenta; } public void setFechaVenta(Date fechaVenta) { this.fechaVenta = fechaVenta; } }