1. 又来了一个分割线的标签，哦豁，又得加代码啦。
1.1 上一篇代码中的select中最后加上hr
java
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Elements elements = doc.select("title, p, img, h1, h2, h3, h4, h5, h6, br, table, ul, li, hr");
1.2 判断加上
java
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else if (tagName.equals("hr")) {
drawHr(document, element);
}
1.3 然后在加上下边的常量语枚举和样式类
java
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private static final Pattern PX_PATTERN = Pattern.compile("(\\d+)px?");
private static final Pattern PERCENT_PATTERN = Pattern.compile("(\\d+)%?");
// ==================== 数据类和常量 ====================
public enum LineStyle {
SOLID, DASHED, DOTTED, DOUBLE, NONE
}
public static class HrStyle {
public int widthPercent = 100;
public int thickness = 2;
public Color color = Color.BLACK;
public LineStyle lineStyle = LineStyle.SOLID;
public ParagraphAlignment alignment = ParagraphAlignment.CENTER;
public int space = 1; // 间距
@Override
public String toString() {
return String.format("HrStyle{width=%d%%, thickness=%dpx, color=%s, style=%s, align=%s}",
widthPercent, thickness, rgbToHex(color), lineStyle, alignment);
}
}
private static final java.util.Map<String, Color> COLOR_MAP = new java.util.HashMap<>();
static {
COLOR_MAP.put("black", Color.BLACK);
COLOR_MAP.put("white", Color.WHITE);
COLOR_MAP.put("red", Color.RED);
COLOR_MAP.put("green", Color.GREEN);
COLOR_MAP.put("blue", Color.BLUE);
COLOR_MAP.put("yellow", Color.YELLOW);
COLOR_MAP.put("cyan", Color.CYAN);
COLOR_MAP.put("magenta", Color.MAGENTA);
COLOR_MAP.put("gray", Color.GRAY);
COLOR_MAP.put("grey", Color.GRAY);
COLOR_MAP.put("darkgray", Color.DARK_GRAY);
COLOR_MAP.put("lightgray", Color.LIGHT_GRAY);
COLOR_MAP.put("orange", Color.ORANGE);
COLOR_MAP.put("pink", Color.PINK);
}
1.4 核心转换代码
java
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/**
* 主入口：从 Jsoup Element 绘制分割线
* @param hrElement Jsoup 解析的 hr 元素
*/
public static void drawHr(XWPFDocument document, Element hrElement) {
HrStyle style = parseHrElement(hrElement);
applyStyleToParagraph(document, style);
}
/**
* 解析 JSoup Element 提取样式
*/
public static HrStyle parseHrElement(Element element) {
HrStyle style = new HrStyle();
// 1. 解析 style 属性
String styleAttr = element.attr("style");
if (!styleAttr.isEmpty()) {
parseStyleAttribute(styleAttr, style);
}
// 2. 解析直接属性（HTML4 遗留属性）
// width 属性 (如 width="80%" 或 width="80")
String widthAttr = element.attr("width");
if (!widthAttr.isEmpty()) {
style.widthPercent = parsePercent(widthAttr);
}
// size 属性 (线条高度/粗细)
String sizeAttr = element.attr("size");
if (!sizeAttr.isEmpty()) {
style.thickness = parseInt(sizeAttr);
}
// color 属性
String colorAttr = element.attr("color");
if (!colorAttr.isEmpty()) {
style.color = parseColor(colorAttr);
}
// noshade 属性（无阴影，实线）
if (element.hasAttr("noshade")) {
style.lineStyle = LineStyle.SOLID;
}
// align 属性（对齐方式）
String alignAttr = element.attr("align");
if (!alignAttr.isEmpty()) {
style.alignment = parseAlignment(alignAttr);
}
// 3. 解析 class 属性（支持预设样式类）
String classAttr = element.attr("class");
if (!classAttr.isEmpty()) {
applyCssClass(classAttr, style);
}
return style;
}
// ==================== 样式解析工具方法 ====================
/**
* 解析 style 属性中的 CSS 样式
*/
private static void parseStyleAttribute(String styleAttr, HrStyle style) {
// 分割多个 CSS 属性
String[] declarations = styleAttr.split(";");
for (String declaration : declarations) {
declaration = declaration.trim();
if (declaration.isEmpty()) continue;
String[] parts = declaration.split(":", 2);
if (parts.length != 2) continue;
String property = parts[0].trim().toLowerCase();
String value = parts[1].trim().toLowerCase();
switch (property) {
case "width":
style.widthPercent = parsePercent(value);
break;
case "height":
case "border-top-width":
case "border-width":
style.thickness = parsePx(value);
break;
case "color":
case "border-color":
case "border-top-color":
style.color = parseColor(value);
break;
case "border-style":
case "border-top-style":
style.lineStyle = parseLineStyle(value);
break;
case "border":
// 简写属性：border: 2px solid red
parseBorderShorthand(value, style);
break;
case "margin":
case "margin-top":
case "margin-bottom":
// 边距会影响间距
style.space = parsePx(value);
break;
case "text-align":
style.alignment = parseAlignment(value);
break;
}
}
}
/**
* 解析 border 简写属性
*/
private static void parseBorderShorthand(String value, HrStyle style) {
String[] parts = value.split("\\s+");
for (String part : parts) {
if (part.matches("\\d+px?")) {
style.thickness = parsePx(part);
} else if (isColor(part)) {
style.color = parseColor(part);
} else {
style.lineStyle = parseLineStyle(part);
}
}
}
// ==================== 数据类型转换 ====================
private static int parsePercent(String value) {
Matcher m = PERCENT_PATTERN.matcher(value);
return m.find() ? Integer.parseInt(m.group(1)) : 100;
}
private static int parsePx(String value) {
Matcher m = PX_PATTERN.matcher(value);
return m.find() ? Integer.parseInt(m.group(1)) : 2;
}
private static int parseInt(String value) {
try {
return Integer.parseInt(value.replaceAll("[^0-9]", ""));
} catch (NumberFormatException e) {
return 2;
}
}
private static Color parseColor(String colorStr) {
colorStr = colorStr.trim().toLowerCase();
// 十六进制 #RRGGBB 或 #RGB
if (colorStr.startsWith("#")) {
return Color.decode(colorStr.length() == 4
? "#" + colorStr.charAt(1) + colorStr.charAt(1)
+ colorStr.charAt(2) + colorStr.charAt(2)
+ colorStr.charAt(3) + colorStr.charAt(3)
: colorStr);
}
// rgb(r, g, b)
if (colorStr.startsWith("rgb")) {
return parseRgb(colorStr);
}
// 颜色名称映射
return COLOR_MAP.getOrDefault(colorStr, Color.BLACK);
}
private static Color parseRgb(String rgb) {
Pattern p = Pattern.compile("rgb\\s*\\(\\s*(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*\\)");
Matcher m = p.matcher(rgb);
if (m.find()) {
return new Color(
Integer.parseInt(m.group(1)),
Integer.parseInt(m.group(2)),
Integer.parseInt(m.group(3))
);
}
return Color.BLACK;
}
private static LineStyle parseLineStyle(String value) {
return switch (value) {
case "dashed" -> LineStyle.DASHED;
case "dotted" -> LineStyle.DOTTED;
case "double" -> LineStyle.DOUBLE;
case "none", "hidden" -> LineStyle.NONE;
default -> LineStyle.SOLID;
};
}
private static ParagraphAlignment parseAlignment(String value) {
return switch (value.toLowerCase()) {
case "left" -> ParagraphAlignment.LEFT;
case "right" -> ParagraphAlignment.RIGHT;
default -> ParagraphAlignment.CENTER;
};
}
private static boolean isColor(String str) {
return str.startsWith("#") || str.startsWith("rgb") || COLOR_MAP.containsKey(str);
}
// ==================== CSS 类预设 ====================
private static void applyCssClass(String classNames, HrStyle style) {
String[] classes = classNames.split("\\s+");
for (String cls : classes) {
switch (cls) {
case "dashed":
style.lineStyle = LineStyle.DASHED;
break;
case "dotted":
style.lineStyle = LineStyle.DOTTED;
break;
case "double":
style.lineStyle = LineStyle.DOUBLE;
break;
case "solid":
style.lineStyle = LineStyle.SOLID;
break;
case "red":
style.color = Color.RED;
break;
case "blue":
style.color = Color.BLUE;
break;
case "gray":
case "grey":
style.color = Color.GRAY;
break;
case "thick":
style.thickness = 4;
break;
case "thin":
style.thickness = 1;
break;
}
}
}
// ==================== 绘制实现 ====================
/**
* 应用样式到段落（创建分割线）
*/
private static void applyStyleToParagraph(XWPFDocument document, HrStyle style) {
if (style.lineStyle == LineStyle.NONE) return;
XWPFParagraph paragraph = document.createParagraph();
// 设置对齐
paragraph.setAlignment(style.alignment);
// 获取/创建段落属性
CTP ctp = paragraph.getCTP();
CTPPr pPr = ctp.isSetPPr() ? ctp.getPPr() : ctp.addNewPPr();
// 设置段落底边边框作为分割线
CTPBdr border = pPr.isSetPBdr() ? pPr.getPBdr() : pPr.addNewPBdr();
CTBorder bottomBorder = CTBorder.Factory.newInstance();
// 设置边框样式
setBorderStyle(bottomBorder, style.lineStyle);
// 设置颜色
bottomBorder.setColor(rgbToHex(style.color));
// 设置粗细 (以1/8磅为单位)
int size = Math.max(2, style.thickness * 4);
bottomBorder.setSz(BigInteger.valueOf(size));
// 设置间距
bottomBorder.setSpace(BigInteger.valueOf(style.space > 0 ? style.space : 1));
border.setBottom(bottomBorder);
// 设置宽度（通过缩进）
if (style.widthPercent < 100) {
setParagraphWidth(paragraph, style.widthPercent);
}
// 添加空运行保持段落
XWPFRun run = paragraph.createRun();
run.setText(" ");
run.setFontSize(2);
// 设置段落间距
paragraph.setSpacingBefore(style.space * 50);
paragraph.setSpacingAfter(style.space * 50);
}
private static void setBorderStyle(CTBorder border, LineStyle style) {
switch (style) {
case DASHED:
border.setVal(STBorder.DASHED);
break;
case DOTTED:
border.setVal(STBorder.DOTTED);
break;
case DOUBLE:
border.setVal(STBorder.DOUBLE);
break;
case SOLID:
default:
border.setVal(STBorder.SINGLE);
break;
}
}
private static void setParagraphWidth(XWPFParagraph paragraph, int widthPercent) {
CTPPr pPr = paragraph.getCTP().isSetPPr()
? paragraph.getCTP().getPPr()
: paragraph.getCTP().addNewPPr();
CTInd ind = pPr.isSetInd() ? pPr.getInd() : pPr.addNewInd();
// 标准页面可写区域约 6.5 英寸 = 9360 twips
int totalWidth = 9360;
int indent = (totalWidth * (100 - widthPercent)) / 200;
ind.setLeft(BigInteger.valueOf(indent));
ind.setRight(BigInteger.valueOf(indent));
}
private static String rgbToHex(Color color) {
return String.format("%02X%02X%02X",
color.getRed(), color.getGreen(), color.getBlue());
}
1.5 废话不多说，结束，展示一下样式
1.5.1 示例数据：
html
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<hr style=\"width:80%;height:2px;color:red;border-style:dashed;\">
<hr style=\"width:100%;color:#333;border-style:solid;\">
1.5.2 导出样式：
