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@ -42,6 +42,7 @@ import javax.xml.parsers.SAXParser; |
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import java.io.*; |
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import java.net.URLEncoder; |
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import java.nio.charset.StandardCharsets; |
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import java.nio.file.Files; |
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import java.util.Arrays; |
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import java.util.List; |
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import java.util.Map; |
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@ -243,22 +244,22 @@ public class DocumentTaskResultsServiceImpl implements IDocumentTaskResultsServi |
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if (!"isRead".equals(field) && !"isAdopted".equals(field)) { |
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throw new RuntimeException("不支持更新的字段: " + field); |
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} |
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// 验证值是否合法
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if (!"0".equals(value) && !"1".equals(value)) { |
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throw new RuntimeException("无效的值: " + value); |
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} |
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try { |
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LambdaUpdateWrapper<DocumentTaskResultDetail> updateWrapper = Wrappers.lambdaUpdate(DocumentTaskResultDetail.class); |
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updateWrapper.eq(DocumentTaskResultDetail::getId, id); |
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if ("isRead".equals(field)) { |
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updateWrapper.set(DocumentTaskResultDetail::getIsRead, value); |
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} else { |
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updateWrapper.set(DocumentTaskResultDetail::getIsAdopted, value); |
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} |
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return documentTaskResultDetailMapper.update(null, updateWrapper) > 0; |
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} catch (Exception e) { |
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throw new RuntimeException("更新状态失败: " + e.getMessage(), e); |
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@ -351,12 +352,6 @@ public class DocumentTaskResultsServiceImpl implements IDocumentTaskResultsServi |
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// Markdown转PDF方法
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private void convertMarkdownToPdf(String markdown, String outputPath) throws Exception { |
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// 使用flexmark-java解析Markdown
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// MutableDataSet options = new MutableDataSet();
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// Parser parser = Parser.builder(options).build();
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// HtmlRenderer renderer = HtmlRenderer.builder(options).build();
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// Node document = parser.parse(markdown);
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// String htmlContent = renderer.render(document);
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MutableDataSet options = new MutableDataSet(); |
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// 启用表格解析
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options.set(Parser.EXTENSIONS, Arrays.asList( |
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@ -371,7 +366,7 @@ public class DocumentTaskResultsServiceImpl implements IDocumentTaskResultsServi |
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StrikethroughExtension.create() |
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)) |
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.build(); |
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markdown=markdown.replaceAll("!\\[","!{}"); |
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Node document = parser.parse(markdown); |
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String htmlContent = renderer.render(document); |
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// 使用 JSoup 清理
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@ -380,21 +375,12 @@ public class DocumentTaskResultsServiceImpl implements IDocumentTaskResultsServi |
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// 配置允许的标签
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Safelist safelist = Safelist.relaxed() |
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// .addTags("em", "strong", "div", "span","br")
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// .addAttributes(":all", "style", "class");
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.addTags("em", "strong", "div", "span", "br", "table", "thead", "tbody", "tr", "th", "td") |
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.addTags("em", "strong", "div", "span", "br", "table", "thead", "tbody", "tr", "th", "td", "img") |
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.addAttributes(":all", "style", "class") |
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.addAttributes("table", "border", "cellpadding", "cellspacing"); |
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.addAttributes("table", "border", "cellpadding", "cellspacing") |
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.addAttributes("img", "src", "alt", "width", "height"); // 允许img标签及其属性
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htmlContent = Jsoup.clean(htmlContent, "", safelist, settings); |
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// 处理代码块 - 将code标签替换为带内联样式的div (不使用class)
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htmlContent = htmlContent.replaceAll("(?s)<pre><code>(.*?)</code></pre>", |
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"<div style='background-color:#f6f8fa;border:1px solid #ddd;'>$1</div>"); |
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// 处理行内代码 - 将行内code替换为带内联样式的span (不使用class)
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htmlContent = htmlContent.replaceAll("<code>(.*?)</code>", |
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"<span style='background-color:#f6f8fa;border:1px solid #ddd;'>$1</span>"); |
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// 使用 NekoHTML 进一步处理
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// 创建完整的HTML文档，使用微软雅黑
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String html = String.format(""" |
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<!DOCTYPE html> |
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@ -437,6 +423,14 @@ public class DocumentTaskResultsServiceImpl implements IDocumentTaskResultsServi |
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tr { |
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page-break-inside: avoid; |
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} |
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img { |
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width: 600px; |
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max-width: 100%%; |
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height: auto; |
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display: block; |
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margin: 20px auto; |
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page-break-inside: avoid; |
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} |
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</style> |
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</head> |
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<body> |
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@ -444,44 +438,130 @@ public class DocumentTaskResultsServiceImpl implements IDocumentTaskResultsServi |
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</body> |
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</html> |
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""", |
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// 特殊处理code标签，确保其内容不被换行破坏
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htmlContent.replace("<br>", "\n")); |
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// 处理图片标签，将markdown的图片语法转换为HTML的img标签
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html=html.replaceAll("!\\{}","!\\["); |
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html = handleImageTags(html); |
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// 配置Flying Saucer
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ITextRenderer pdfRenderer = new ITextRenderer(); |
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// 主要使用微软雅黑，但也加载其他字体作为备选
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// 从classpath加载字体
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try (InputStream is = getClass().getResourceAsStream("/fonts/msyh.ttc")) { |
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File tempFont = File.createTempFile("msyh", ".ttc"); |
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FileUtils.copyInputStreamToFile(is, tempFont); |
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pdfRenderer.getFontResolver().addFont(tempFont.getAbsolutePath(), BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); |
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tempFont.deleteOnExit(); |
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} |
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// 设置文档
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pdfRenderer.setDocumentFromString(html); |
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// 设置输出编码和基础URL
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pdfRenderer.getSharedContext().setBaseURL("file:///"); |
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// 配置Flying Saucer
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ITextRenderer pdfRenderer = new ITextRenderer(); |
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// 主要使用微软雅黑，但也加载其他字体作为备选
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// 从classpath加载字体
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try (InputStream is = getClass().getResourceAsStream("/fonts/msyh.ttc")) { |
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File tempFont = File.createTempFile("msyh", ".ttc"); |
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FileUtils.copyInputStreamToFile(is, tempFont); |
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pdfRenderer.getFontResolver().addFont(tempFont.getAbsolutePath(), BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); |
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tempFont.deleteOnExit(); |
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} |
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try (InputStream consolas = getClass().getResourceAsStream("/fonts/consolas.ttf")){ |
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if (consolas != null) { |
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File tempConsolas = File.createTempFile("consolas", ".ttf"); |
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FileUtils.copyInputStreamToFile(consolas, tempConsolas); |
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pdfRenderer.getFontResolver().addFont(tempConsolas.getAbsolutePath(), BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); |
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tempConsolas.deleteOnExit(); |
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} |
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} |
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// 布局和创建PDF
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pdfRenderer.layout(); |
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// 设置文档
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pdfRenderer.setDocumentFromString(html); |
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try (OutputStream os = new FileOutputStream(outputPath)) { |
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pdfRenderer.createPDF(os, true); |
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} |
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} |
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// 设置输出编码和基础URL
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pdfRenderer.getSharedContext().setBaseURL("file:///"); |
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/** |
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* 处理Markdown中的图片标签 |
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* @param content Markdown内容 |
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* @return 处理后的HTML内容 |
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*/ |
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private String handleImageTags(String content) { |
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// 使用非贪婪模式匹配alt文本，使用平衡组模式匹配路径
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java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("!\\[(.*?)\\]\\(([^()]*(?:\\([^()]*\\)[^()]*)*?)\\)"); |
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java.util.regex.Matcher matcher = pattern.matcher(content); |
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StringBuffer sb = new StringBuffer(); |
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while (matcher.find()) { |
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String alt = matcher.group(1); |
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String imagePath = matcher.group(2); |
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// 检查图片文件是否存在
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File imageFile = new File(imagePath); |
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if (!imageFile.exists() && imagePath.contains("(")) { |
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// 如果文件不存在且路径中包含括号，尝试修正路径
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String correctedPath = correctImagePath(imagePath); |
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imageFile = new File(correctedPath); |
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if (imageFile.exists()) { |
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imagePath = correctedPath; |
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} |
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} |
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// 布局和创建PDF
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pdfRenderer.layout(); |
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if (imageFile.exists()) { |
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try { |
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// 将图片转换为Base64编码
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byte[] imageBytes = Files.readAllBytes(imageFile.toPath()); |
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String base64Image = java.util.Base64.getEncoder().encodeToString(imageBytes); |
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String imageType = getImageMimeType(imagePath); |
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// 创建data URL，使用固定的宽度来确保图片在页面内显示
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String imgTag = String.format("<img src=\"data:%s;base64,%s\" alt=\"%s\" style=\"width: 600px; max-width: 100%%; height: auto; display: block; margin: 10px auto;\"/>", |
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imageType, base64Image, alt); |
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// 替换markdown图片语法为HTML img标签
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matcher.appendReplacement(sb, imgTag.replace("$", "\\$")); |
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} catch (IOException e) { |
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// 如果处理失败，保留原始文本
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matcher.appendReplacement(sb, matcher.group(0).replace("$", "\\$")); |
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} |
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} else { |
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// 如果图片不存在，保留原始文本
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matcher.appendReplacement(sb, matcher.group(0).replace("$", "\\$")); |
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} |
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} |
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matcher.appendTail(sb); |
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return sb.toString(); |
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} |
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try (OutputStream os = new FileOutputStream(outputPath)) { |
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pdfRenderer.createPDF(os, true); |
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} |
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/** |
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* 修正包含括号的图片路径 |
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* @param originalPath 原始路径 |
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* @return 修正后的路径 |
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*/ |
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private String correctImagePath(String originalPath) { |
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// 如果路径中包含多个括号，取最后一个右括号之前的内容
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int lastRightBracket = originalPath.lastIndexOf(")"); |
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if (lastRightBracket != -1) { |
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// 找到对应的左括号
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int count = 1; |
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int leftBracket = lastRightBracket - 1; |
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while (leftBracket >= 0 && count > 0) { |
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if (originalPath.charAt(leftBracket) == ')') { |
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count++; |
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} else if (originalPath.charAt(leftBracket) == '(') { |
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count--; |
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} |
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leftBracket--; |
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} |
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if (count == 0) { |
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// 找到匹配的括号对，返回不包含最外层括号的路径
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return originalPath.substring(0, leftBracket + 1) + originalPath.substring(lastRightBracket + 1); |
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} |
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} |
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return originalPath; |
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} |
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/** |
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* 根据文件扩展名获取MIME类型 |
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* @param filePath 文件路径 |
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* @return MIME类型 |
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*/ |
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private String getImageMimeType(String filePath) { |
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String extension = filePath.substring(filePath.lastIndexOf(".") + 1).toLowerCase(); |
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return switch (extension) { |
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case "png" -> "image/png"; |
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case "jpg", "jpeg" -> "image/jpeg"; |
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case "gif" -> "image/gif"; |
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case "bmp" -> "image/bmp"; |
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default -> "image/jpeg"; |
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}; |
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} |
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// 添加文件到ZIP
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zhouhaibin
1 month ago