CellStyle.setAlignment(HorizontalAlignment.CENTER) error

Question

CellStyle stringStyle = workbook.createCellStyle();
stringStyle.setAlignment(HorizontalAlignment.CENTER);

this code produces error:

method setAlignment in interface CellStyle cannot be applied to given types;

required: short

found: HorizontalAlignment

reason: actual argument HorizontalAlignment cannot be converted to short by method invocation conversion

so I change the code to use a short:

CellStyle stringStyle = workbook.createCellStyle();
stringStyle.setAlignment((short)1);

And my IDE complains saying:

setAlignment (org.apache.poi.ss.usermodel.HorizontalAlignment) in CellStyle cannot be applied to (short)

So it complains that it wants a short when I give it a HorizontalAlignment and that it wants a HorizontalAligment when I give it a short.

Answer 1

您的apache poi类路径中必须具有不同的版本。因此您的IDE对此感到困惑。

在apache poi 3.12其中存在setAlignment（short align）无效并且存在公共最终静态short ALIGN_CENTER = 0x2; 。所以代码是

CellStyle stringStyle = workbook.createCellStyle();
stringStyle.setAlignment(CellStyle.ALIGN_CENTER);

为apache poi 3.12。

但是，由于apache poi 3.15这种方法已被弃用，因为apache poi 3.17它被去除，现在只有空隙参考setAlignment（的Horizo​​ntalAlignment对齐）可以具有可以使用的Horizo​​ntalAlignment作为parammeter。所以代码是

CellStyle stringStyle = workbook.createCellStyle();
stringStyle.setAlignment(HorizontalAlignment.CENTER);

为apache poi 3.17。

我怀疑你的问题，从这个事实你的IDE结果，那罐子从不同的版本apache poi 3.12，并apache poi 3.17在你的IDE的类路径。不支持此操作，必须避免。