直接上代码：

import java.io.FileOutputStream;
import java.math.BigInteger;
import java.util.Random;import org.apache.poi.xwpf.usermodel.BreakType;
import org.apache.poi.xwpf.usermodel.ParagraphAlignment;
import org.apache.poi.xwpf.usermodel.TextAlignment;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBackground;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTFonts;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTHighlight;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTHpsMeasure;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTRPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTShd;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTSpacing;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTUnderline;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STHighlightColor;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STLineSpacingRule;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STShd;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STUnderline;public class POI_07_设置下划线样式_S3_Test {public static void main(String[] args) throws Exception {POI_07_设置下划线样式_S3_Test t = new POI_07_设置下划线样式_S3_Test();XWPFDocument doc = new XWPFDocument();// 需关闭护眼色才能看到效果t.setDocumentbackground(doc, "FDE9D9");//设置页面背景色t.testSetUnderLineStyle(doc);//设置下划线样式以及突出显示文本t.addNewPage(doc, BreakType.PAGE);t.testSetShdStyle(doc);//设置文字底纹t.saveDocument(doc,"f:/saveFile/temp/sys_" + System.currentTimeMillis() + ".docx");}public void testSetUnderLineStyle(XWPFDocument doc) {String[] colors = new String[] { "CCA6EF", "DD999D", "4FCEF0","7A7A7A", "F3C917", "FFA932", "C7B571", "535354", "5FD2F1","B5E900", "FEF8B6" };Random random = new Random();// TODO 这里为了方便测试写了数字,推荐写英文样式for (int i = 1; i <= 18; i++) {XWPFParagraph p = doc.createParagraph();setParagraphFontInfoAndUnderLineStyle(p, "测试下划线", "宋体", "1D8C56","22", false, false, false, true, i,colors[Math.abs(random.nextInt(colors.length))], false, 0,null);setParagraphSpacingInfo(p, true, "0", "50", false, "0", "0", true,"240", STLineSpacingRule.Enum.forString("auto"));setParagraphAlignInfo(p, ParagraphAlignment.LEFT,TextAlignment.CENTER);}}public void testSetShdStyle(XWPFDocument doc) {String[] colors = new String[] { "CCA6EF", "DD999D", "4FCEF0","7A7A7A", "F3C917", "FFA932", "C7B571", "535354", "5FD2F1","B5E900", "FEF8B6" };Random random = new Random();// TODO 这里为了方便测试写了数字,推荐写英文样式for (int i = 1; i <= 38; i++) {XWPFParagraph p = doc.createParagraph();setParagraphFontInfoAndUnderLineStyle(p, "测试底纹", "宋体", "1D8C56","22", false, false, false, false, i, null, true, i,colors[Math.abs(random.nextInt(colors.length))]);setParagraphSpacingInfo(p, true, "0", "50", false, "0", "0", true,"240", STLineSpacingRule.Enum.forString("auto"));setParagraphAlignInfo(p, ParagraphAlignment.LEFT,TextAlignment.CENTER);}}public void setParagraphAlignInfo(XWPFParagraph p,ParagraphAlignment pAlign, TextAlignment valign) {p.setAlignment(pAlign);p.setVerticalAlignment(valign);}public void setParagraphSpacingInfo(XWPFParagraph p, boolean isSpace,String before, String after, boolean isPLine, String beforeLines,String afterLines, boolean isLine, String line,STLineSpacingRule.Enum lineValue) {CTPPr pPPr = null;if (p.getCTP() != null) {if (p.getCTP().getPPr() != null) {pPPr = p.getCTP().getPPr();} else {pPPr = p.getCTP().addNewPPr();}}CTSpacing pSpacing = pPPr.getSpacing() != null ? pPPr.getSpacing(): pPPr.addNewSpacing();if (isSpace) {// 段前磅数if (before != null) {pSpacing.setBefore(new BigInteger(before));}// 段后磅数if (after != null) {pSpacing.setAfter(new BigInteger(after));}}if (isPLine) {// 段前行数if (beforeLines != null) {pSpacing.setBeforeLines(new BigInteger(beforeLines));}// 段后行数if (afterLines != null) {pSpacing.setAfterLines(new BigInteger(afterLines));}}// 间距if (isLine) {if (line != null) {pSpacing.setLine(new BigInteger(line));}if (lineValue != null) {pSpacing.setLineRule(lineValue);}}}public void setParagraphFontInfoAndUnderLineStyle(XWPFParagraph p,String content, String fontFamily, String colorVal,String fontSize, boolean isBlod, boolean isItalic,boolean isStrike, boolean isUnderLine, int underLineStyle,String underLineColor, boolean isShd, int shdValue, String shdColor) {XWPFRun pRun = null;if (p.getRuns() != null && p.getRuns().size() > 0) {pRun = p.getRuns().get(0);} else {pRun = p.createRun();}pRun.setText(content);CTRPr pRpr = null;if (pRun.getCTR() != null) {pRpr = pRun.getCTR().getRPr();if (pRpr == null) {pRpr = pRun.getCTR().addNewRPr();}}// 设置字体CTFonts fonts = pRpr.isSetRFonts() ? pRpr.getRFonts() : pRpr.addNewRFonts();fonts.setAscii(fontFamily);fonts.setEastAsia(fontFamily);fonts.setHAnsi(fontFamily);// 设置字体大小CTHpsMeasure sz = pRpr.isSetSz() ? pRpr.getSz() : pRpr.addNewSz();sz.setVal(new BigInteger(fontSize));CTHpsMeasure szCs = pRpr.isSetSzCs() ? pRpr.getSzCs() : pRpr.addNewSzCs();szCs.setVal(new BigInteger(fontSize));// 设置字体样式if (isBlod) {pRun.setBold(isBlod);}if (isItalic) {pRun.setItalic(isItalic);}if (isStrike) {pRun.setStrike(isStrike);}if (colorVal != null) {pRun.setColor(colorVal);}// 设置字突出显示文本if (underLineStyle > 0 && underLineStyle < 17) {CTHighlight hightLight = pRpr.isSetHighlight() ? pRpr.getHighlight() : pRpr.addNewHighlight();hightLight.setVal(STHighlightColor.Enum.forInt(underLineStyle));}// 设置下划线样式if (isUnderLine) {CTUnderline u = pRpr.isSetU() ? pRpr.getU() : pRpr.addNewU();u.setVal(STUnderline.Enum.forInt(Math.abs(underLineStyle % 19)));if (underLineColor != null) {u.setColor(underLineColor);}}if (isShd) {// 设置底纹CTShd shd = pRpr.isSetShd() ? pRpr.getShd() : pRpr.addNewShd();if (shdValue > 0 && shdValue <= 38) {shd.setVal(STShd.Enum.forInt(shdValue));}if (shdColor != null) {shd.setColor(shdColor);}}}// 设置页面背景色public void setDocumentbackground(XWPFDocument document, String bgColor) {CTBackground bg = document.getDocument().isSetBackground() ? document.getDocument().getBackground() : document.getDocument().addNewBackground();bg.setColor(bgColor);}public void addNewPage(XWPFDocument document, BreakType breakType) {XWPFParagraph xp = document.createParagraph();xp.createRun().addBreak(breakType);}public void saveDocument(XWPFDocument document, String savePath)throws Exception {FileOutputStream fos = new FileOutputStream(savePath);document.write(fos);fos.close();}
}

结果为:

    

      转载请注明原处，原文链接:http://53873039oycg.iteye.com/blog/2157758 ,谢谢。
      全文完。