[简单]docx4j合并单元格

      见代码:

      

import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.JAXBElement;
import org.docx4j.wml.ContentAccessor;
import org.docx4j.wml.Tbl;
import org.docx4j.wml.Tc;
import org.docx4j.wml.TcPr;
import org.docx4j.wml.TcPrInner.GridSpan;
import org.docx4j.wml.TcPrInner.HMerge;
import org.docx4j.wml.TcPrInner.VMerge;
import org.docx4j.wml.Tr;

public class Docx4j_合并单元格_S4_Test {
	public void mergeCellsHorizontalByGridSpan(Tbl tbl, int row, int fromCell,
			int toCell) {
		if (row < 0 || fromCell < 0 || toCell < 0) {
			return;
		}
		List trList = getTblAllTr(tbl);
		if (row > trList.size()) {
			return;
		}
		Tr tr = trList.get(row);
		List tcList = getTrAllCell(tr);
		for (int cellIndex = Math.min(tcList.size() - 1, toCell); cellIndex >= fromCell; cellIndex--) {
			Tc tc = tcList.get(cellIndex);
			TcPr tcPr = getTcPr(tc);
			if (cellIndex == fromCell) {
				GridSpan gridSpan = tcPr.getGridSpan();
				if (gridSpan == null) {
					gridSpan = new GridSpan();
					tcPr.setGridSpan(gridSpan);
				}
				gridSpan.setVal(BigInteger.valueOf(Math.min(tcList.size() - 1,
						toCell) - fromCell + 1));
			} else {
				tr.getContent().remove(cellIndex);
			}
		}
	}

	/**
	 * @Description: 跨列合并
	 */
	public void mergeCellsHorizontal(Tbl tbl, int row, int fromCell, int toCell) {
		if (row < 0 || fromCell < 0 || toCell < 0) {
			return;
		}
		List trList = getTblAllTr(tbl);
		if (row > trList.size()) {
			return;
		}
		Tr tr = trList.get(row);
		List tcList = getTrAllCell(tr);
		for (int cellIndex = fromCell, len = Math
				.min(tcList.size() - 1, toCell); cellIndex <= len; cellIndex++) {
			Tc tc = tcList.get(cellIndex);
			TcPr tcPr = getTcPr(tc);
			HMerge hMerge = tcPr.getHMerge();
			if (hMerge == null) {
				hMerge = new HMerge();
				tcPr.setHMerge(hMerge);
			}
			if (cellIndex == fromCell) {
				hMerge.setVal("restart");
			} else {
				hMerge.setVal("continue");
			}
		}
	}

	/**
	 * @Description: 跨行合并
	 */
	public void mergeCellsVertically(Tbl tbl, int col, int fromRow, int toRow) {
		if (col < 0 || fromRow < 0 || toRow < 0) {
			return;
		}
		for (int rowIndex = fromRow; rowIndex <= toRow; rowIndex++) {
			Tc tc = getTc(tbl, rowIndex, col);
			if (tc == null) {
				break;
			}
			TcPr tcPr = getTcPr(tc);
			VMerge vMerge = tcPr.getVMerge();
			if (vMerge == null) {
				vMerge = new VMerge();
				tcPr.setVMerge(vMerge);
			}
			if (rowIndex == fromRow) {
				vMerge.setVal("restart");
			} else {
				vMerge.setVal("continue");
			}
		}
	}

	/**
	 * @Description:得到指定位置的表格
	 */
	public Tc getTc(Tbl tbl, int row, int cell) {
		if (row < 0 || cell < 0) {
			return null;
		}
		List trList = getTblAllTr(tbl);
		if (row >= trList.size()) {
			return null;
		}
		List tcList = getTrAllCell(trList.get(row));
		if (cell >= tcList.size()) {
			return null;
		}
		return tcList.get(cell);
	}

	/**
	 * @Description: 获取所有的单元格
	 */
	public List getTrAllCell(Tr tr) {
		List