POI读取Excel数据,设置单元格数据类型

废话不多说,直接上代码,一个简单的读取Excel数据,并且设置单元格数据类型

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
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;

public class Test {
	public static void main(String[] args) throws Exception {
		String sFullPath = "D:/exportNoRetail.xls";
  		File file = new File(sFullPath);

		//file.getAbsolutePath() 获取文件的全路径
  		//创建输入流读取Excel
  		InputStream finput = new FileInputStream(file.getAbsolutePath()); 
  		HSSFWorkbook  wb = new HSSFWorkbook(finput);
  		HSSFSheet sheet = wb.getSheetAt(0);
  		finput.close();

		HSSFRow row = null;//宣告一列 
  		HSSFCell cell = null;//宣告一个储存格 
  
  		for (int i = 1;i <= sheet.getLastRowNum();i++){
   			row = sheet.getRow(i);
   			for (int j = 0; j < 4; j++){
    				//设置单元格是字符串类型   
    				//长度较大的数字时,导入数据放到缓存中会变成科学计数发的形式,可以将数字转换为字符串导入
    				cell.setCellType(HSSFCell.CELL_TYPE_STRING);
    				cell = row.getCell(j);
    				System.out.print(cell+"**");
  			}
   			System.out.println();
  		} 
	}
}

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