java生成excel文件并且隔行换色。

实体类实例：

@Data
@Table(name = "test_user")
@Entity
@ExcelTarget(value = "userDO")  //目标实体类
public class UserDO implements Serializable{
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer id;
    /*@NotBlank(message = "姓名空")*/
    @Excel(name = "姓名",width = 6.0)
    private String name;
    @Temporal(TemporalType.TIMESTAMP)
    @Excel(name = "生日",width = 20)
    private Date birthday;
    @Excel(name = "电话",width = 12)
    private String mobile;
    private Integer deptId;
    private Integer groupId;
    @Temporal(TemporalType.TIMESTAMP)
    @Excel(name = "创建时间",width = 20)
    private Date createTime;
    private Integer operatorId;
    @Temporal(TemporalType.TIMESTAMP)
    private Date modifyTime;
    private Integer modifyId;
    @Excel(name = "是否删除",width = 5,replace = {"是_1","否_0"} )
    private int isdelete;

    @ManyToOne
    @JoinColumn(name = "deptId",referencedColumnName = "id",updatable = false,insertable = false)
    private DeptDO deptDO;
}

简单查询实例：

        List all = userRepository.findAll();
        Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams("用户详细信息", "用户", ExcelType.HSSF), UserDO.class, all);
        Sheet sheet = workbook.getSheet("用户");
        CellStyle cellStyle = workbook.createCellStyle();
        cellStyle.setFillForegroundColor(HSSFColor.GREY_25_PERCENT.index);
        cellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        cellStyle.setAlignment(HorizontalAlignment.CENTER);
        cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);

        /**
         * 隔行换色
         * */
        int totalRows = sheet.getLastRowNum();
        int totalCells;
        Row row;
        for (int i = 2; i <= totalRows; i++) {
            if (i % 2 == 0) {
                row = sheet.getRow(i);
                totalCells = row.getPhysicalNumberOfCells();
                for (int j = 0; j < totalCells; j++) {
                    row.getCell(j).setCellStyle(cellStyle);
                }
            }
        }
        FileOutputStream fos = new FileOutputStream(new File("D:\\test1.xls"));    //IO流输出
        workbook.write(fos);
        fos.close();
    }