Apache的Jakata項(xiàng)目的POI子項(xiàng)目，目標(biāo)是處理ole2對(duì)象。
POI可以到
http://www.apache.org/dyn/closer.cgi/jakarta/poi/
下載。
編譯好的jar主要有這樣4個(gè)：poi包,poi Browser包,poi hdf包,poi hssf例程包。實(shí)際運(yùn)行時(shí)，需要有poi包就可以了。
HSSF提供給用戶使用的對(duì)象在org.apache.poi.hssf.usermodel包中,主要部分包括Excell對(duì)象，樣式和格式，還有輔助操作。有以下幾種對(duì)象：
HSSFWorkbook excell的文檔對(duì)象
HSSFSheet excell的表單
HSSFRow excell的行
HSSFCell excell的格子單元
HSSFFont excell字體
HSSFName 名稱
HSSFDataFormat 日期格式
在poi1.7中才有以下2項(xiàng)：
HSSFHeader sheet頭
HSSFFooter sheet尾
和這個(gè)樣式
HSSFCellStyle cell樣式
輔助操作包括
HSSFDateUtil 日期
HSSFPrintSetup 打印
HSSFErrorConstants 錯(cuò)誤信息表
下面是一個(gè)簡(jiǎn)單的例子：
/**?*/
/**
?*?
?
*/
package
?com.justinmobile.payease.admin.commons.excel;
import
?java.io.FileNotFoundException;
import
?java.io.FileOutputStream;
import
?java.io.IOException;
import
?java.util.Calendar;
import
?org.apache.poi.hssf.usermodel.HSSFCell;
import
?org.apache.poi.hssf.usermodel.HSSFCellStyle;
import
?org.apache.poi.hssf.usermodel.HSSFDataFormat;
import
?org.apache.poi.hssf.usermodel.HSSFRow;
import
?org.apache.poi.hssf.usermodel.HSSFSheet;
import
?org.apache.poi.hssf.usermodel.HSSFWorkbook;
/**?*/
/**
?*?生成導(dǎo)出Excel文件對(duì)象
?*?
?*?
@author
?John.Zhu
?*?
?
*/
public
?
class
?XLSExport?
{
????
//
?設(shè)置cell編碼解決中文高位字節(jié)截?cái)?/span>
????
private
?
static
?
short
?XLS_ENCODING?
=
?HSSFWorkbook.ENCODING_UTF_16;
????
//
?定制日期格式
????
private
?
static
?String?DATE_FORMAT?
=
?
"
m/d/yy
"
;?
//
?"m/d/yy?h:mm"
????
//
?定制浮點(diǎn)數(shù)格式
????
private
?
static
?String?NUMBER_FORMAT?
=
?
"
#,##0.00
"
;
????
private
?String?xlsFileName;
????
private
?HSSFWorkbook?workbook;
????
private
?HSSFSheet?sheet;
????
private
?HSSFRow?row;
????
/**?*/
/**
?????*?初始化Excel
?????*?
?????*?
@param
?fileName
?????*????????????導(dǎo)出文件名
?????
*/
????
public
?XLSExport(String?fileName)?
{
????????
this
.xlsFileName?
=
?fileName;
????????
this
.workbook?
=
?
new
?HSSFWorkbook();
????????
this
.sheet?
=
?workbook.createSheet();
????}
????
/**?*/
/**
?????*?導(dǎo)出Excel文件
?????*?
?????*?
@throws
?XLSException
?????
*/
????
public
?
void
?exportXLS()?
throws
?XLSException?
{
????????
try
?
{
????????????FileOutputStream?fOut?
=
?
new
?FileOutputStream(xlsFileName);
????????????workbook.write(fOut);
????????????fOut.flush();
????????????fOut.close();
????????}
?
catch
?(FileNotFoundException?e)?
{
????????????
throw
?
new
?XLSException(
"
生成導(dǎo)出Excel文件出錯(cuò)!
"
,?e);
????????}
?
catch
?(IOException?e)?
{
????????????
throw
?
new
?XLSException(
"
寫(xiě)入Excel文件出錯(cuò)!
"
,?e);
????????}
????}
????
/**?*/
/**
?????*?增加一行
?????*?
?????*?
@param
?index
?????*????????????行號(hào)
?????
*/
????
public
?
void
?createRow(
int
?index)?
{
????????
this
.row?
=
?
this
.sheet.createRow(index);
????}
????
/**?*/
/**
?????*?設(shè)置單元格
?????*?
?????*?
@param
?index
?????*????????????列號(hào)
?????*?
@param
?value
?????*????????????單元格填充值
?????
*/
????
public
?
void
?setCell(
int
?index,?String?value)?
{
????????HSSFCell?cell?
=
?
this
.row.createCell((
short
)?index);
????????cell.setCellType(HSSFCell.CELL_TYPE_STRING);
????????cell.setEncoding(XLS_ENCODING);
????????cell.setCellValue(value);
????}
????
/**?*/
/**
?????*?設(shè)置單元格
?????*?
?????*?
@param
?index
?????*????????????列號(hào)
?????*?
@param
?value
?????*????????????單元格填充值
?????
*/
????
public
?
void
?setCell(
int
?index,?Calendar?value)?
{
????????HSSFCell?cell?
=
?
this
.row.createCell((
short
)?index);
????????cell.setEncoding(XLS_ENCODING);
????????cell.setCellValue(value.getTime());
????????HSSFCellStyle?cellStyle?
=
?workbook.createCellStyle();?
//
?建立新的cell樣式
????????cellStyle.setDataFormat(HSSFDataFormat.getBuiltinFormat(DATE_FORMAT));?
//
?設(shè)置cell樣式為定制的日期格式
????????cell.setCellStyle(cellStyle);?
//
?設(shè)置該cell日期的顯示格式
????}
????
/**?*/
/**
?????*?設(shè)置單元格
?????*?
?????*?
@param
?index
?????*????????????列號(hào)
?????*?
@param
?value
?????*????????????單元格填充值
?????
*/
????
public
?
void
?setCell(
int
?index,?
int
?value)?
{
????????HSSFCell?cell?
=
?
this
.row.createCell((
short
)?index);
????????cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
????????cell.setCellValue(value);
????}
????
/**?*/
/**
?????*?設(shè)置單元格
?????*?
?????*?
@param
?index
?????*????????????列號(hào)
?????*?
@param
?value
?????*????????????單元格填充值
?????
*/
????
public
?
void
?setCell(
int
?index,?
double
?value)?
{
????????HSSFCell?cell?
=
?
this
.row.createCell((
short
)?index);
????????cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
????????cell.setCellValue(value);
????????HSSFCellStyle?cellStyle?
=
?workbook.createCellStyle();?
//
?建立新的cell樣式
????????HSSFDataFormat?format?
=
?workbook.createDataFormat();
????????cellStyle.setDataFormat(format.getFormat(NUMBER_FORMAT));?
//
?設(shè)置cell樣式為定制的浮點(diǎn)數(shù)格式
????????cell.setCellStyle(cellStyle);?
//
?設(shè)置該cell浮點(diǎn)數(shù)的顯示格式
????}
}
調(diào)用的過(guò)程：
/**?*/
/**
?*?
?
*/
package
?com.justinmobile.payease.admin.commons.excel;
import
?java.util.Calendar;
/**?*/
/**
?*?導(dǎo)出Excel示例
?*?
?*?
@author
?John.Zhu
?*?
?
*/
public
?
class
?XLSDemo?
{
????
public
?
static
?
void
?main(String[]?args)?
{
????????System.out.println(
"
開(kāi)始導(dǎo)出Excel文件
"
);
????????XLSExport?e?
=
?
new
?XLSExport(
"
d:/test.xls
"
);
????????e.createRow(
0
);
????????e.setCell(
0
,?
"
編號(hào)
"
);
????????e.setCell(
1
,?
"
名稱
"
);
????????e.setCell(
2
,?
"
日期
"
);
????????e.setCell(
3
,?
"
金額
"
);
????????e.createRow(
1
);
????????e.setCell(
0
,?
1
);
????????e.setCell(
1
,?
"
工商銀行
"
);
????????e.setCell(
2
,?Calendar.getInstance());
????????e.setCell(
3
,?
111123.99
);
????????e.createRow(
2
);
????????e.setCell(
0
,?
2
);
????????e.setCell(
1
,?
"
招商銀行
"
);
????????e.setCell(
2
,?Calendar.getInstance());
????????e.setCell(
3
,?
222456.88
);
????????
try
?
{
????????????e.exportXLS();
????????????System.out.println(
"
導(dǎo)出Excel文件[成功]
"
);
????????}
?
catch
?(XLSException?e1)?
{
????????????System.out.println(
"
導(dǎo)出Excel文件[失敗]
"
);
????????????e1.printStackTrace();
????????}
????}
}
參考文檔：
http://jakarta.apache.org/poi/hssf/quick-guide.html