jxlでレポートExcelデータをインポートし、excelが日付形式の場合は8時間減算する必要があります

<span style="font-size:18px;"> jxl Excel ， excel 8 
package cn.itcast.elec.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import jxl.Cell;
import jxl.CellType;
import jxl.DateCell;
import jxl.Sheet;
import jxl.Workbook;
public class GenerateSqlFromExcel {	
	/**
	 *  Excel ， 
	 * @param formFile
	 * @return list ArrayList
	 * @throws Exception
	 */
	public static ArrayList generateStationBugSql(File formFile)
			throws Exception {
		InputStream in = null;
		Workbook wb = null;
		ArrayList list = new ArrayList();
		
		try {
			if (formFile == null) {
				throw new Exception(" ！");
			}

			in = new FileInputStream(formFile);
			
			wb = Workbook.getWorkbook(in);
			
			Sheet sheet[] = wb.getSheets();
			if (sheet != null) {
				for (int i = 0; i < sheet.length; i++) {
					if (!sheet[i].getName().equalsIgnoreCase("User")) {						
						throw new Exception(" User sheet, ！");
					}
					for (int j = 1; j < sheet[i].getRows(); j++) {
						String[] valStr = new String[8];
						for (int k = 0; k < sheet[i].getColumns(); k++) {
							Cell cell = sheet[i].getCell(k, j);
							String content = "";
							if (cell.getType() == CellType.DATE) {
								<strong>DateCell dateCell = (DateCell) cell;
								java.util.Date importdate = dateCell.getDate();</strong></span>

<span style="font-size:18px;"><strong><span style="white-space:pre">								</span>/** excel 8 */
								long eighthour = 8*60*60*1000;
								SimpleDateFormat simpledate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 
								/** 8 */
								long time = importdate.getTime()-eighthour; 
								java.util.Date date = new java.util.Date();
								date.setTime(time);
								content = simpledate.format(date);</strong> 
							} else {
								String tempcontent = (cell.getContents() == null ? ""
										: cell.getContents());
								content = tempcontent.trim().replace('\'', ' ');
							}
							valStr[k] = content;
							
						} 
						list.add(j-1,valStr);
					}
				}
			}
			
			return list;
		} catch (Exception e) {
			e.printStackTrace();
			throw e;
		} finally {
			if (wb != null) {
				wb.close();
			}
			if (in != null) {
				try {
					in.close();
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		}
	}
}
</span>