Cannot get a text value from a numeric cell

在使用poi读取excel时报错为：Cannot get a text value from a numeric cell

刚开始的写法为：

Cell cell = row.getCell(j);

if (cell == null) {

continue;

}

switch(cell.getCellType()){

case Cell.CELL_TYPE_BOOLEAN :

cell.getBooleanCellValue();

case Cell.CELL_TYPE_STRING :

cell.getStringCellValue();

case Cell.CELL_TYPE_NUMERIC:

cell.getNumericCellValue();

}

后改为：

Cell cell = row.getCell(j);

if (cell == null) {

continue;

}

cell.setCellType(Cell.CELL_TYPE_STRING);

str = cell.getStringCellValue();

就不报错了。