使用POI导入Excel并解决Cannot get a text value from a numeric formula cell

最近做Excel导入

有两个方法：JXL 和POI

各有问题：JXL 导入：文件中有宏就报错，找不到解决方法。

POI导入：文件太大造成内存溢出。

先说问题 ：Exception in thread "main" java.lang.IllegalStateException: Cannot get a text value from a numeric formula cell

这个问题是因为那一单元格使用了 “求和函数”，内容不是文本。

package cmcc.gz.platform.emss.purchase;

import java.io.FileInputStream;
import java.io.IOException;
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 XlsMain {
  public static void main( String[] args) throws IOException {
    XlsMain xlsMain = new XlsMain();
    xlsMain.readXls();
  }  

  private void readXls() throws IOException{
    InputStream is = new FileInputStream( "F:\\导入模板V1.1.xls");
    HSSFWorkbook hssfWorkbook = new HSSFWorkbook( is);
    // 循环工作表Sheet
    for(int numSheet = 2; numSheet < hssfWorkbook.getNumberOfSheets(); numSheet++){
      HSSFSheet hssfSheet = hssfWorkbook.getSheetAt( numSheet);
      if(hssfSheet == null){
        continue;
      }
      // 循环行Row
      for(int rowNum = 0; rowNum <= hssfSheet.getLastRowNum(); rowNum++){
        HSSFRow hssfRow = hssfSheet.getRow( rowNum);
        if(hssfRow == null){
          continue;
        }
        // 循环列Cell
        for(int cellNum = 0; cellNum <= hssfRow.getLastCellNum(); cellNum++){
          HSSFCell hssfCell = hssfRow.getCell( cellNum);
          if(hssfCell == null){
            continue;
          }
          if(hssfRow.getCell(9)!=null){//处理函数单元格问题，先将单元格内容转为String
        	  hssfRow.getCell(9).setCellType(hssfCell.CELL_TYPE_STRING);
         }
          System.out.print("" + getValue( hssfCell));
        }
        System.out.println(" >>>");
      }
    }
  }  

  @SuppressWarnings("static-access")
  private 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 if (hssfCell.getCellType() ==hssfCell.CELL_TYPE_STRING){
    	return String.valueOf(hssfCell.getStringCellValue());
    }else{
      return String.valueOf( hssfCell.getStringCellValue());
    }
  }
}

使用POI导入Excel并解决Cannot get a text value from a numeric formula cell