java操作Excel的poi 遍历一个工作簿

遍历一个工作簿

package com.java.poi;import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;import java.io.FileInputStream;
import java.io.InputStream;/*** 遍历一个工作簿* @author nidegui* @create 2019-06-17 9:46*/
public class Test5 {public static void main(String[] args) throws Exception {InputStream is=new FileInputStream("E:\\2.xls");POIFSFileSystem fs=new POIFSFileSystem(is);  //接受一个输入流HSSFWorkbook wb=new HSSFWorkbook(fs);//创建了一个工作簿HSSFSheet hssfSheet=wb.getSheetAt(0); //获取第一个sheet页if(hssfSheet==null){return;}//遍历行rowfor (int rownum=0;rownum<=hssfSheet.getLastRowNum();rownum++){HSSFRow sheetRow = hssfSheet.getRow(rownum);if(sheetRow==null){continue;}//遍历列cellfor (int cellnum=0;cellnum<=sheetRow.getLastCellNum();cellnum++){HSSFCell cell = sheetRow.getCell(cellnum);if(cell==null){continue;}System.out.print( " "+getValue(cell));}System.out.println();}}/*** 静态* @param hssfCell* @return*/private static String getValue(HSSFCell hssfCell){if(hssfCell.getCellType()==HSSFCell.CELL_TYPE_BOOLEAN){return String.valueOf(hssfCell.getBooleanCellValue());}else if(hssfCell.getCellType()==HSSFCell.CELL_TYPE_NUMERIC){return String.valueOf(hssfCell.getNumericCellValue());}else{return  String.valueOf(hssfCell.getStringCellValue());}}
}