java讀取 .xlsx格式文件轉成list

1.main方法(filePath 是 要讀取的文件的路徑)

  public static void main(String[] args) throws IOException {
        String filePath = "C:\\Users\\admin\\Desktop\\1.xlsx";
        List<PersonPhone> newList = readExcel(filePath);
    }

2.readExcel方法（獲取每一個單元格數據后 可以按照自己實際處理方式來進行整理數據）

    public static List<PersonPhone> readExcel(String filePath) throws IOException {//讀取Excel並獲取所有信息
        File file = new File(filePath);//獲取該路徑文件
        XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(file));//加載excel文本
        Sheet sheet = workbook.getSheetAt(0);// 讀取第一個 sheet
        List<PersonPhone> personPhone = new ArrayList<>();
        Row row = null;//存儲行數據對象
        int rowCount = sheet.getPhysicalNumberOfRows();// 獲得行總數
        // 逐行處理 excel 數據
        for (int i = 1; i < rowCount; i++) {
            row = sheet.getRow(i);//獲得每一行的數據
            if (row != null) {
                int coloumNum = sheet.getRow(0).getPhysicalNumberOfCells();// 獲得咧總數
                PersonPhone phone = new PersonPhone();
                for (int j = 0; j < coloumNum; j++) {
                    Cell cell = row.getCell(j);//獲得一個單元格
                    if (cell != null) {
                        if (j == 0) {
                            //code
                            phone.setCode(cell.toString());
                        } else if (j == 1) {
                            phone.setName(cell.toString());
                        } else if (j == 2) {
                            phone.setIsD(cell.toString());
                        } else {
                            phone.setPhone(cell.toString());
                        }
                        personPhone.add(phone);
                    }
                }
            }
            workbook.close();
        }
        return personPhone;
    }

3.完整代碼

@Slf4j
@Data
public class PersonPhone {

    private String code;
    private String name;
    private String phone;
    private String isD;


    public static void main(String[] args) throws IOException {
        String filePath = "C:\\Users\\admin\\Desktop\\1.xlsx";
        List<PersonPhone> newList = readExcel(filePath);
    }


    public static List<PersonPhone> readExcel(String filePath) throws IOException {//讀取Excel並獲取所有信息
        File file = new File(filePath);//獲取該路徑文件
        XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(file));//加載excel文本
        Sheet sheet = workbook.getSheetAt(0);// 讀取第一個 sheet
        List<PersonPhone> personPhone = new ArrayList<>();
        Row row = null;//存儲行數據對象
        int rowCount = sheet.getPhysicalNumberOfRows();// 獲得行總數
        // 逐行處理 excel 數據
        for (int i = 1; i < rowCount; i++) {
            row = sheet.getRow(i);//獲得每一行的數據
            if (row != null) {
                int coloumNum = sheet.getRow(0).getPhysicalNumberOfCells();// 獲得咧總數
                PersonPhone phone = new PersonPhone();
                for (int j = 0; j < coloumNum; j++) {
                    Cell cell = row.getCell(j);//獲得一個單元格
                    if (cell != null) {
                        if (j == 0) {
                            //code
                            phone.setCode(cell.toString());
                        } else if (j == 1) {
                            phone.setName(cell.toString());
                        } else if (j == 2) {
                            phone.setIsD(cell.toString());
                        } else {
                            phone.setPhone(cell.toString());
                        }
                        personPhone.add(phone);
                    }
                }
            }
            workbook.close();
        }
        return personPhone;
    }
}