PoiUtil.java 用于excel间sheet复制

前言：apache提供的poi功能确实比较强大，但是不明白为什么没有相应的方法实现不同excel文件中sheet的复制功能。这也是本文整理PoiUtil工具类的初衷。网上有相关的解决方案，在参考了网上诸多的解决方案、示例代码之后，就有了该工具类，特别感谢各位前辈，让我能够站在巨人的肩膀上，用拳头抠抠鼻屎。废话不多说了，下面是PoiUtil工具类的源码：

package com.poi.extend;
import java.util.HashMap;
import java.util.Map;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFComment;
import org.apache.poi.hssf.usermodel.HSSFPalette;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.CellRangeAddress;
import org.apache.poi.hssf.util.HSSFColor;
/**
* POI工具类 功能点：
* 1、实现excel的sheet复制，复制的内容包括单元的内容、样式、注释
* 2、setMForeColor修改HSSFColor.YELLOW的色值，setMBorderColor修改PINK的色值
*
* @author Administrator
*/
public final class PoiUtil {
/**
* 功能：拷贝sheet
* 实际调用
copySheet(targetSheet, sourceSheet, targetWork, sourceWork, true)
* @param targetSheet
* @param sourceSheet
* @param targetWork
* @param sourceWork
*/
public static void copySheet(HSSFSheet targetSheet, HSSFSheet sourceSheet,
HSSFWorkbook targetWork, HSSFWorkbook sourceWork) throws Exception{
if(targetSheet == null || sourceSheet == null || targetWork == null || sourceWork == null){
throw new IllegalArgumentException("调用PoiUtil.copySheet()方法时，targetSheet、sourceSheet、targetWork、sourceWork都不能为空，故抛出该异常！");
}
copySheet(targetSheet, sourceSheet, targetWork, sourceWork, true);
}
/**
* 功能：拷贝sheet
* @param targetSheet
* @param sourceSheet
* @param targetWork
* @param sourceWork
* @param copyStyle
boolean 是否拷贝样式
*/
public static void copySheet(HSSFSheet targetSheet, HSSFSheet sourceSheet,
HSSFWorkbook targetWork, HSSFWorkbook sourceWork, boolean copyStyle)throws Exception {
if(targetSheet == null || sourceSheet == null || targetWork == null || sourceWork == null){
throw new IllegalArgumentException("调用PoiUtil.copySheet()方法时，targetSheet、sourceSheet、targetWork、sourceWork都不能为空，故抛出该异常！");
}
//复制源表中的行
int maxColumnNum = 0;
Map styleMap = (copyStyle) ? new HashMap() : null;
HSSFPatriarch patriarch = targetSheet.createDrawingPatriarch(); //用于复制注释
for (int i = sourceSheet.getFirstRowNum(); i <= sourceSheet.getLastRowNum(); i++) {
HSSFRow sourceRow = sourceSheet.getRow(i);
HSSFRow targetRow = targetSheet.createRow(i);
if (sourceRow != null) {
copyRow(targetRow, sourceRow,
targetWork, sourceWork,patriarch, styleMap);
if (sourceRow.getLastCellNum() > maxColumnNum) {
maxColumnNum = sourceRow.getLastCellNum();
}
}
}
//复制源表中的合并单元格
mergerRegion(targetSheet, sourceSheet);
//设置目标sheet的列宽
for (int i = 0; i <= maxColumnNum; i++) {
targetSheet.setColumnWidth(i, sourceSheet.getColumnWidth(i));
}
}
/**
* 功能：拷贝row
* @param targetRow
* @param sourceRow
* @param styleMap
* @param targetWork
* @param sourceWork
* @param targetPatriarch
*/
public static void copyRow(HSSFRow targetRow, HSSFRow sourceRow,
HSSFWorkbook targetWork, HSSFWorkbook sourceWork,HSSFPatriarch targetPatriarch, Map styleMap) throws Exception {
if(targetRow == null || sourceRow == null || targetWork == null || sourceWork == null || targetPatriarch == null){
throw new IllegalArgumentException("调用PoiUtil.copyRow()方法时，targetRow、sourceRow、targetWork、sourceWork、targetPatriarch都不能为空，故抛出该异常！");
}
//设置行高
targetRow.setHeight(sourceRow.getHeight());
for (int i = sourceRow.getFirstCellNum(); i <= sourceRow.getLastCellNum(); i++) {
HSSFCell sourceCell = sourceRow.getCell(i);
HSSFCell targetCell = targetRow.getCell(i);
if (sourceCell != null) {
if (targetCell == null) {
targetCell = targetRow.createCell(i);
}
//拷贝单元格，包括内容和样式
copyCell(targetCell, sourceCell, targetWork, sourceWork, styleMap);
//拷贝单元格注释
copyComment(targetCell,sourceCell,targetPatriarch);
}
}
}
/**
* 功能：拷贝cell，依据styleMap是否为空判断是否拷贝单元格样式
* @param targetCell
不能为空
* @param sourceCell
不能为空
* @param targetWork
不能为空
* @param sourceWork
不能为空
* @param styleMap
可以为空
*/
public static void copyCell(HSSFCell targetCell, HSSFCell sourceCell, HSSFWorkbook targetWork, HSSFWorkbook sourceWork,Map styleMap) {
if(targetCell == null || sourceCell == null || targetWork == null || sourceWork == null ){
throw new IllegalArgumentException("调用PoiUtil.copyCell()方法时，targetCell、sourceCell、targetWork、sourceWork都不能为空，故抛出该异常！");
}
//处理单元格样式
if(styleMap != null){
if (targetWork == sourceWork) {
targetCell.setCellStyle(sourceCell.getCellStyle());
} else {
String stHashCode = "" + sourceCell.getCellStyle().hashCode();
HSSFCellStyle targetCellStyle = (HSSFCellStyle) styleMap
.get(stHashCode);
if (targetCellStyle == null) {
targetCellStyle = targetWork.createCellStyle();
targetCellStyle.cloneStyleFrom(sourceCell.getCellStyle());
styleMap.put(stHashCode, targetCellStyle);
}
targetCell.setCellStyle(targetCellStyle);
}
}
//处理单元格内容
switch (sourceCell.getCellType()) {
case HSSFCell.CELL_TYPE_STRING:
targetCell.setCellValue(sourceCell.getRichStringCellValue());
break;
case HSSFCell.CELL_TYPE_NUMERIC:
targetCell.setCellValue(sourceCell.getNumericCellValue());
break;
case HSSFCell.CELL_TYPE_BLANK:
targetCell.setCellType(HSSFCell.CELL_TYPE_BLANK);
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
targetCell.setCellValue(sourceCell.getBooleanCellValue());
break;
case HSSFCell.CELL_TYPE_ERROR:
targetCell.setCellErrorValue(sourceCell.getErrorCellValue());
break;
case HSSFCell.CELL_TYPE_FORMULA:
targetCell.setCellFormula(sourceCell.getCellFormula());
break;
default:
break;
}
}
/**
* 功能：拷贝comment
* @param targetCell
* @param sourceCell
* @param targetPatriarch
*/
public static void copyComment(HSSFCell targetCell,HSSFCell sourceCell,HSSFPatriarch targetPatriarch)throws Exception{
if(targetCell == null || sourceCell == null || targetPatriarch == null){
throw new IllegalArgumentException("调用PoiUtil.copyCommentr()方法时，targetCell、sourceCell、targetPatriarch都不能为空，故抛出该异常！");
}
//处理单元格注释
HSSFComment comment = sourceCell.getCellComment();
if(comment != null){
HSSFComment newComment = targetPatriarch.createComment(new HSSFClientAnchor());
newComment.setAuthor(comment.getAuthor());
newComment.setColumn(comment.getColumn());
newComment.setFillColor(comment.getFillColor());
newComment.setHorizontalAlignment(comment.getHorizontalAlignment());
newComment.setLineStyle(comment.getLineStyle());
newComment.setLineStyleColor(comment.getLineStyleColor());
newComment.setLineWidth(comment.getLineWidth());
newComment.setMarginBottom(comment.getMarginBottom());
newComment.setMarginLeft(comment.getMarginLeft());
newComment.setMarginTop(comment.getMarginTop());
newComment.setMarginRight(comment.getMarginRight());
newComment.setNoFill(comment.isNoFill());
newComment.setRow(comment.getRow());
newComment.setShapeType(comment.getShapeType());
newComment.setString(comment.getString());
newComment.setVerticalAlignment(comment.getVerticalAlignment());
newComment.setVisible(comment.isVisible());
targetCell.setCellComment(newComment);
}
}
/**
* 功能：复制原有sheet的合并单元格到新创建的sheet
*
* @param sheetCreat
* @param sourceSheet
*/
public static void mergerRegion(HSSFSheet targetSheet, HSSFSheet sourceSheet)throws Exception {
if(targetSheet == null || sourceSheet == null){
throw new IllegalArgumentException("调用PoiUtil.mergerRegion()方法时，targetSheet或者sourceSheet不能为空，故抛出该异常！");
}
for (int i = 0; i < sourceSheet.getNumMergedRegions(); i++) {
CellRangeAddress oldRange = sourceSheet.getMergedRegion(i);
CellRangeAddress newRange = new CellRangeAddress(
oldRange.getFirstRow(), oldRange.getLastRow(),
oldRange.getFirstColumn(), oldRange.getLastColumn());
targetSheet.addMergedRegion(newRange);
}
}
/**
* 功能：重新定义HSSFColor.YELLOW的色值
*
* @param workbook
* @return
*/
public static HSSFColor setMForeColor(HSSFWorkbook workbook) {
HSSFPalette palette = workbook.getCustomPalette();
HSSFColor hssfColor = null;
// byte[] rgb = { (byte) 221, (byte) 241, (byte) 255 };
// try {
// hssfColor = palette.findColor(rgb[0], rgb[1], rgb[2]);
// if (hssfColor == null) {
// palette.setColorAtIndex(HSSFColor.YELLOW.index, rgb[0], rgb[1],
// rgb[2]);
// hssfColor = palette.getColor(HSSFColor.YELLOW.index);
// }
// } catch (Exception e) {
// e.printStackTrace();
// }
// return hssfColor;
// }
/**
* 功能：重新定义HSSFColor.PINK的色值
*
* @param workbook
* @return
*/
public static HSSFColor setMBorderColor(HSSFWorkbook workbook) {
HSSFPalette palette = workbook.getCustomPalette();
HSSFColor hssfColor = null;
byte[] rgb = { (byte) 0, (byte) 128, (byte) 192 };
try {
hssfColor = palette.findColor(rgb[0], rgb[1], rgb[2]);
if (hssfColor == null) {
palette.setColorAtIndex(HSSFColor.PINK.index, rgb[0], rgb[1],
rgb[2]);
hssfColor = palette.getColor(HSSFColor.PINK.index);
}
} catch (Exception e) {
e.printStackTrace();
}
return hssfColor;
}
}

关于工具类的使用，可以简单的调用copySheet方法完成sheet的复制。

注意：整理该工具类用到的poi版本是 3.2-FINAL-20081019，jdk的版本是1.4