使用poi3.10操作Excel表格

步驟：

1.導入官方網站下的jar包

2.寫自己的類來實現EXCEL的導出

/*
* 把列表打印成表格
* */
public static void export(List<String []> list){

Workbook work=new HSSFWorkbook();//創建workBook

HSSFSheet sheet=(HSSFSheet) work.createSheet("測試表格");

HSSFRow[] rows;// 行數

HSSFCell[][] cells;// 單元;二維數組

rows = new HSSFRow[list.size()];

cells = new HSSFCell[list.size()][];

for (int i = 0; i <list.size();i++) {

rows[i] = sheet.createRow(i);

cells[i] = new HSSFCell[list.get(i).length];

for (int j = 0; j < list.get(i).length; j++) {

cells[i][j] = rows[i].createCell(j);

cells[i][j].setCellValue(list.get(i)[j]);
}
}

FileOutputStream fileOut = null;
SimpleDateFormat df=new SimpleDateFormat("yyyy-MM-dd");

try {
fileOut = new FileOutputStream("E:/"+df.format(new Date())+".xls");
work.write(fileOut);
fileOut.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}


}

希望可以幫到大家O(∩_∩)O~~