需求：读取PDF表格数据，提取特定列的内容

问题：springboot + pdfbox读取全部内容文字，但是读取有回车符的表格单元格时，会自动转成换行符导致内容顺序错误

解决：pdfbox 解析PDF文档，tabula依据文档生成对象解析器，里面包含分页迭代，遍历分页数据读取各个表格内容即可，读取单元格时重点在将 ‘\r’回车符替换掉就好

        <!-- PDF解析依赖 -->
        <dependency>
            <groupId>org.apache.pdfbox</groupId>
            <artifactId>pdfbox</artifactId>
            <version>2.0.27</version>
        </dependency>
        <dependency>
            <groupId>technology.tabula</groupId>
            <artifactId>tabula</artifactId>
            <version>1.0.5</version>
        </dependency>

public static void readPdfTable() {
		String filePath = "C:\\Users\\Administrator\\Desktop\\测试.pdf";
		try (PDDocument document = PDDocument.load(new File(filePath))) {
			ObjectExtractor extractor = new ObjectExtractor(document);
			SpreadsheetExtractionAlgorithm algorithm = new SpreadsheetExtractionAlgorithm();
			PageIterator extract = extractor.extract();
			Page page = extract.next();
			while (page != null) {
				System.out.println("当前页数：" + page.getPageNumber());
				for (Table table : algorithm.extract(page)) {
					List<List<RectangularTextContainer>> rows = table.getRows();
					for (List<RectangularTextContainer> row : rows) {
						for (RectangularTextContainer cell : row) {
							// 获取单元格完整内容（自动处理换行）
							String text = cell.getText().replace("\r", "");
							System.out.println("单元格内容: " + text);
						}
					}
				}
				page = extract.next();
			}
		} catch (Exception e) {

		}
	}

表格单元格：   
 

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