java导出excel
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我用Java jxl导出的excel的格式是文本的,即左上角有绿色小三角,怎样导出为数字格式呢?
代码:ws.addCell(new Label(h, j, String.valueOf(kw.getAbArticNum())));
其中kw.getAbArticNum() 为int型,一旦转换成Strig,就会是文本格式, 同时,如果为String类型,只要最前面的字符是数字,依然会是这种情况
java 代码 /* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package com.axon.fable.sams.view.action; import java.io.IOException; import java.io.OutputStream; import java.util.List; import javax.serv ...
java导出Excel例举方式
方法一:导出Excel数据的插件jexcelapi
程序实例如下:
public void exportClassroom(OutputStream os) throws PaikeException
try
WritableWorkbook wbook = Workbook.createWorkbook(os); //建立excel文件
WritableSheet wsheet = wbook.createSheet("教室信息表", 0); //工作表名称
//设置Excel字体
WritableFont wfont = new WritableFont(WritableFont.ARIAL, 16,
WritableFont.BOLD, false,
jxl.format.UnderlineStyle.NO_UNDERLINE,
jxl.format.Colour.BLACK);
WritableCellFormat titleFormat = new WritableCellFormat(wfont);
String[] title = "教室名", "容 量", "类 型", "其他说明" ;
//设置Excel表头
for (int i = 0; i < title.length; i++)
Label excelTitle = new Label(i, 0, title[i], titleFormat);
wsheet.addCell(excelTitle);
int c = 1; //用于循环时Excel的行号
ClassroomService cs = new ClassroomService();
List list = cs.findAllClassroom(); //这个是从数据库中取得要导出的数据
Iterator it = list.iterator();
while (it.hasNext())
ClassroomDTO crdto = (ClassroomDTO) it.next();
Label content1 = new Label(0, c, crdto.getRoomname());
Label content2 = new Label(1, c, crdto.getCapicity().toString());
Label content3 = new Label(2, c, crdto.getRoomTypeId()
.toString());
Label content4 = new Label(3, c, crdto.getRemark());
wsheet.addCell(content1);
wsheet.addCell(content2);
wsheet.addCell(content3);
wsheet.addCell(content4);
c++;
wbook.write(); //写入文件
wbook.close();
os.close();
catch (Exception e)
throw new PaikeException("导出文件出错");
方法二:直接用Java代码实现导出Excel报表
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.axon.fable.sams.view.action;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jxl.Workbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.axon.fable.empolderpackage.out.Outjavascript;
import com.axon.fable.empolderpackage.page.Pager;
import com.axon.fable.empolderpackage.string.MyPublic;
import com.axon.fable.sams.common.BaseAction;
import com.axon.fable.sams.exception.AppBusinessException;
import com.axon.fable.sams.exception.AppSystemException;
/**
* MyEclipse Struts
* Creation date: 06-28-2007
*
* XDoclet definition:
* @struts.action path="/axon" name="axonForm" input="/samspage/zm/axon.jsp" parameter="method" scope="request" validate="true"
* @struts.action-forward name="success" path="/samspage/zm/content.jsp"
*/
public class StshipoperationAction extends BaseAction
/*
* Generated Methods
*/
private static Session session=null;
private static Transaction ts=null;
private static Query queryC=null;
private static Query queryR=null;
private static Query query=null;
private static List list=null;
private static Integer startRow;
private static Integer ncurrentPage;
private static Integer cell;
private static String property;
private static String sql;
private static String type;
private static String condition ;//是否导出当前页
private static String currentPage;
private static String from ;
private static String pactdata;
private static String voyagename;
private static String voyageno;
private static String dwt ;
private static String hirefrom ;
private static String deliveryposion ;
private static String redeliveryposion ;
private static String sheepowner ;
private static String addr;
private static String addcomm;
private static String rent;
private static String fileName ;
private static OutputStream os;
@Override
public ActionForward findAll(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
// TODO Auto-generated method stub
return null;
@Override
public ActionForward findById(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
// TODO Auto-generated method stub
return null;
@Override
public ActionForward save(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
// TODO Auto-generated method stub
return null;
public static String strNull(Object nullStr,String newStr,Integer cell)
if(nullStr==null||nullStr.equals(""))return newStr;elsecell+=1;return nullStr+"";
public static String getStr(String str,Integer cell)
if(str==null||str.trim().equals(""))return "";elsecell+=1;return ","+str;
public static String getExcelTile(String title)
if(title==null)
return "";
if(title.equals("modela.stsid"))
return "编号";
if(title.equals("modelc.pactdata"))
return "合同日期";
if(title.equals("modela.voyagename"))
return "航名";
if(title.equals("modela.voyageno"))
return "航次";
if(title.equals("modelc.dwt"))
return "DWT";
if(title.equals("modelc.hirefrom"))
return "受载期";
if(title.equals("modela.deliveryposion"))
return "交船地点";
if(title.equals("modela.redeliveryposion"))
return "还船地点";
if(title.equals("modelc.sheepowner"))
return "联系人";
if(title.equals("modelc.addr"))
return "经纪人拥金";
if(title.equals("modelc.addcomm"))
return "ADD COMM";
if(title.equals("modelc.rent"))
return "租金";
return "";
public ActionForward exporVoyagesInfoToExcel(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
list=null;
startRow=0;
ncurrentPage=1;
cell=0;
type =request.getParameter("type");
condition =request.getParameter("condition");//是否导出当前页
currentPage =request.getParameter("currentPage");
from =request.getParameter("from");
pactdata = request.getParameter("modelc.pactdata");
voyagename = request.getParameter("modela.voyagename");
voyageno = request.getParameter("modela.voyageno");
dwt = request.getParameter("modelc.dwt");
hirefrom = request.getParameter("modelc.hirefrom");
deliveryposion = request.getParameter("modela.deliveryposion");
redeliveryposion = request.getParameter("modela.redeliveryposion");
sheepowner = request.getParameter("modelc.sheepowner");
addr = request.getParameter("modelc.addr");
addcomm = request.getParameter("modelc.addcomm");
rent = request.getParameter("modelc.rent");
if(type!=null&&type.trim().equals("1"))
type ="已还船舶--费用未结清";
else
type ="已还船舶--费用已结清";
property =getStr(pactdata,cell)+getStr(voyagename,cell)+getStr(voyageno,cell)+getStr(dwt,cell)+getStr(hirefrom,cell)
+getStr(deliveryposion,cell)+getStr(redeliveryposion,cell)+getStr(sheepowner,cell)+getStr(addr,cell)+getStr(addcomm,cell)
+getStr(rent,cell);
property = property.substring(1);
String split[] = property.split(",");
// System.out.println("-----------------------------property:"+property);
if(currentPage!=null&&!currentPage.trim().equals(""))
ncurrentPage =Integer.parseInt(currentPage);
else
OutJavaScript.outString(response, "Sorry! Failed to get information of pager.");
return null;
try
session =getServiceLocator().getBaseHibernateDAO().getSession();
sql ="select count(*) "+from;
query =session.createQuery(sql);
list = query.list();
for (int i = 0; i < list.size(); i++)
totalSize =(Integer)list.get(i);
if(totalSize!=0)
pager =new Pager(ncurrentPage,totalSize);
query =getServiceLocator().getBaseHibernateDAO().getSession().createQuery("select " +property+from);
if(condition!=null&&condition.trim().equals("1"))//分页数据
startRow = (ncurrentPage - 1)*pager.getPageSize();
query.setFirstResult(startRow);
query.setMaxResults(pager.getPageSize());
// System.out.println("---------------------------------------------------query:"+query);
list = query.list();
fileName = "shipInfo";
os = response.getOutputStream();
response.reset();
response.setHeader("Content-disposition",
"attachment; filename=" +fileName + ".xls");
response.setContentType("application/msexcel");
jxl.write.WritableWorkbook wbook = Workbook.createWorkbook(os);
jxl.write.WritableSheet wsheet = wbook.createSheet("the first sheet", 0);
for (int i = 0; i < split.length; i++)
jxl.write.Label wlabel0;
wlabel0 = new jxl.write.Label(i, 0, getExcelTile(split[i]));
wsheet.addCell(wlabel0);
jxl.write.Label wlabel1;
for(int i=0;i<list.size();i++)
if(split.length==1)
Object strval = (Object) list.get(i);
String javaScript=""+MyPublic.tohtmlStr(strval==null?"":strval.toString().trim())+"";
wlabel1 = new jxl.write.Label(0, i+1,strval==null?"":strval.toString().trim() );
wsheet.addCell(wlabel1);
else
Object[] strval = (Object[]) list.get(i);
for(int j=0;j<strval.length;j++)
String javaScript=""+MyPublic.toHtmlStr(strval[j]==null?"":strval[j].toString().trim())+"";
//System.out.println("===================script:"+javaScript);
wlabel1 = new jxl.write.Label(j, i+1,strval[j]==null?"":strval[j].toString().trim() );
wsheet.addCell(wlabel1);
wbook.write();
response.flushBuffer();
wbook.close();
os.close();
catch (IOException e)
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Export Excel exception.");
e.printStackTrace();
catch (HibernateException e1)
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Database exception.");
e1.printStackTrace();
catch (AppSystemException e1)
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! System exception.");
e1.printStackTrace();
catch (AppBusinessException e1)
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Database exception.");
e1.printStackTrace();
catch (RowsExceededException e)
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Export Excel exception.");
e.printStackTrace();
catch (WriteException e)
// TODO Auto-generated catch block
OutJavaScript.outString(response, "Sorry! Export Excel exception.");
e.printStackTrace();
return null;
@Override
public ActionForward update(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
// TODO Auto-generated method stub
return null;
还有其他很多种 字数限制 无法一一举例方式 参考技术A 这个好像不能实现吧,导出的应该都是文本的! 参考技术B 试试double型 参考技术C 试试Apache的poi
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