這是一個(gè)非常有用的問題.

步驟1：制作一個(gè)com.displaytag.export.views包

步驟2：在上述包中創(chuàng)建一個(gè)類myExcel2007ExportView.java.

步驟3：將以下代碼復(fù)制并粘貼到該文件中

package com.displaytag.export.views;

import java.io.IOException;

import java.io.OutputStream;

import java.util.Iterator;

import javax.servlet.jsp.JspException;

import org.apache.commons.lang.ObjectUtils;

import org.apache.commons.lang.StringUtils;

import org.displaytag.export.BinaryExportView;

import org.displaytag.model.Column;

import org.displaytag.model.ColumnIterator;

import org.displaytag.model.HeaderCell;

import org.displaytag.model.RowIterator;

import org.displaytag.model.TableModel;

import org.apache.poi.ss.usermodel.Cell;

import org.apache.poi.ss.usermodel.CellStyle;

import org.apache.poi.ss.usermodel.IndexedColors;

import org.apache.poi.ss.usermodel.Row;

import org.apache.poi.ss.util.CellRangeAddress;

import org.apache.poi.xssf.usermodel.XSSFFont;

import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import com.lowagie.text.BadElementException;

public class myExcel2007ExportView implements BinaryExportView{

//private static Log log = LogFactory.getLog(myExcel2007ExportView.class);

private TableModel model;

private boolean exportFull;

private boolean header;

private boolean decorated;

private XSSFWorkbook workbook;

private XSSFSheet sheet;

private int rowCount=0;

private CellStyle normalstyle=null;

private CellStyle headerstyle=null;

private CellStyle captionstyle=null;

private XSSFFont defaultFont;

private XSSFFont headerFont;

private XSSFFont captionFont;

public String getMimeType() {

return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";

}

public void setParameters(TableModel tableModel, boolean exportFullList, boolean includeHeader,

boolean decorateValues)

{

this.model = tableModel;

this.exportFull = true;

this.header = includeHeader;

this.decorated = decorateValues;

}

public boolean outputPage() {

return false;

}

protected void initTable() throws BadElementException

{

//Blank workbook

workbook = new XSSFWorkbook();

//Create a blank sheet

sheet = workbook.createSheet("Server Management System");

defaultFont= workbook.createFont();

defaultFont.setFontHeightInPoints((short)10);

defaultFont.setFontName("Arial");

defaultFont.setColor(IndexedColors.BLACK.getIndex());

defaultFont.setBold(false);

defaultFont.setItalic(false);

headerFont= workbook.createFont();

headerFont.setFontHeightInPoints((short)10);

headerFont.setFontName("Arial");

headerFont.setColor(IndexedColors.WHITE.getIndex());

headerFont.setBold(true);

headerFont.setItalic(false);

captionFont= workbook.createFont();

captionFont.setFontHeightInPoints((short)15);

captionFont.setFontName("Arial");

captionFont.setColor(IndexedColors.BLACK.getIndex());

captionFont.setBold(true);

captionFont.setItalic(false);

normalstyle= workbook.createCellStyle();

normalstyle.setFillBackgroundColor(IndexedColors.WHITE.getIndex());

normalstyle.setFillPattern(CellStyle.BIG_SPOTS);

normalstyle.setAlignment(CellStyle.ALIGN_CENTER);

normalstyle.setFont(defaultFont);

headerstyle= workbook.createCellStyle();

headerstyle.setFillBackgroundColor(IndexedColors.GREY_25_PERCENT.getIndex());

headerstyle.setFillPattern(CellStyle.BIG_SPOTS);

headerstyle.setAlignment(CellStyle.ALIGN_CENTER);

headerstyle.setFont(headerFont);

captionstyle= workbook.createCellStyle();

captionstyle.setFillBackgroundColor(IndexedColors.GREY_25_PERCENT.getIndex());

captionstyle.setFillPattern(CellStyle.BIG_SPOTS);

captionstyle.setAlignment(CellStyle.ALIGN_CENTER);

captionstyle.setVerticalAlignment(CellStyle.VERTICAL_CENTER);

captionstyle.setFont(captionFont);

}

protected void generateXLSXTable() throws JspException, BadElementException

{

//adding caption

if(this.model.getCaption()!=null && this.model.getCaption()!="")

{

Row blankrow = sheet.createRow(rowCount++);

Row row = sheet.createRow(rowCount++);

row.setHeight((short)5000);

int columnCount=0;

Cell captionCell = row.createCell(columnCount++);

captionCell.setCellValue(this.model.getCaption());

captionCell.setCellStyle(captionstyle);

sheet.addMergedRegion(new CellRangeAddress(

rowCount-1, //first row (0-based)

rowCount-1, //last row (0-based)

columnCount-1, //first column (0-based)

columnCount+5 //last column (0-based)

));

Row blankrow2 = sheet.createRow(rowCount++);

}

if (this.header)

{

generateHeaders();

}

generateRows();

//adding footer

if(this.model.getFooter()!=null && this.model.getFooter()!="")

{

Row blankrow = sheet.createRow(rowCount++);

Row blankrow2 = sheet.createRow(rowCount++);

Row row = sheet.createRow(rowCount++);

row.setHeight((short)1000);

int columnCount=0;

Cell captionCell = row.createCell(columnCount++);

captionCell.setCellValue(this.model.getFooter());

captionCell.setCellStyle(captionstyle);

sheet.addMergedRegion(new CellRangeAddress(

rowCount-1, //first row (0-based)

rowCount-1, //last row (0-based)

columnCount-1, //first column (0-based)

columnCount+5 //last column (0-based)

));

}

}

protected void generateHeaders() throws BadElementException

{

Iterator iterator = this.model.getHeaderCellList().iterator();

Row row = sheet.createRow(rowCount++);

int columnCount=0;

while (iterator.hasNext())

{

sheet.autoSizeColumn(columnCount);

HeaderCell headerCell = iterator.next();

String columnHeader = headerCell.getTitle();

if (columnHeader == null)

{

columnHeader = StringUtils.capitalize(headerCell.getBeanPropertyName());

}

Cell hdrCell = row.createCell(columnCount++);

hdrCell.setCellValue(columnHeader);

hdrCell.setCellStyle(headerstyle);

}

}

protected void generateRows() throws JspException, BadElementException

{

// get the correct iterator (full or partial list according to the exportFull field)

RowIterator rowIterator = this.model.getRowIterator(this.exportFull);

// iterator on rows

while (rowIterator.hasNext())

{

Row newrow = sheet.createRow(rowCount++);

org.displaytag.model.Row row = rowIterator.next();

// iterator on columns

ColumnIterator columnIterator = row.getColumnIterator(this.model.getHeaderCellList());

int columnCount=0;

while (columnIterator.hasNext())

{

Column column = columnIterator.nextColumn();

// Get the value to be displayed for the column

Object value = column.getValue(this.decorated);

Cell Cell = newrow.createCell(columnCount++);

Cell.setCellValue(ObjectUtils.toString(value));

}

}

}

@Override

public void doExport(OutputStream out) throws IOException, JspException {

try {

// Initialize the table with the appropriate number of columns

initTable();

generateXLSXTable();

} catch (BadElementException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

workbook.write(out);

out.close();

}

}

注意：您可以根據(jù)需要修改此類.

步驟4：在資源文件夾中創(chuàng)建一個(gè)文件displaytag.properties

步驟5：在其中復(fù)制并粘貼以下代碼

export.amount=list

sort.amount=list

export.decorated=true

export.types=csv excel xml pdf rtf [mymedia]

export.[mymedia]=true

export.[mymedia].class=com.displaytag.export.views.myExcel2007ExportView

export.excel=true

export.csv=true

export.xml=true

export.pdf=true

export.pdf.include_header=true

export.excel.include_header=true

export.rtf=true

export.rtf.label=RTF

export.rtf.include_header=true

export.rtf.filename=

export.[mymedia].label=Excel 2007

export.[mymedia].include_header=true

export.[mymedia].filename=

注意：請確保您不更改屬性的順序

步驟6：在JSP文件中

yourcaption

//other columns

yourfooter

注意：不要忘記在標(biāo)題,頁腳中添加[mymedia],也不要忘記按如下所示設(shè)置文件名.

步驟7：將以下jar文件復(fù)制并粘貼到WEB-INF / lib文件夾中

displaytag-1.2.jar

displaytag-export-poi-1.2.jar

displaytag-portlet-1.2.jar

commons-lang-2.3 or above

commons-beanutils-1.7.0 or above

commons-collections-3.1 or above

commons-logging-1.1.jar

itext-1.3 or above

slf4j-api-1.4.2 or above

slf4j-log4j12-1.4.2 or above

poi-3.2-FINAL.jar

poi-3.9.jar

poi-ooxml-3.9.jar

poi-ooxml-schemas-3.9.jar

stax-api-1.0.1.jar

xmlbeans-2.6.0.jar

commons-codec-1.5.jar

dom4j-1.6.1.jar

log4j-1.2.15.jar

注意：如果我忘記了任何依賴項(xiàng)jar,請使用maven進(jìn)行檢查.

步驟8：運(yùn)行項(xiàng)目并享受():)如果有任何錯(cuò)誤,也請通知我.另外,如果您在displaytag中使用任何裝飾器,則必須為其編寫代碼.

謝謝

制作資源文件夾如果您使用的是eclipse,請右鍵單擊以下Java資源

提供名稱res并在其中創(chuàng)建屬性文件

使用netBeans IDE 7.4

總結(jié)

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