springboot集成pdfbox解析pdf文件

1、引入依赖

<dependency><groupId>org.apache.pdfbox</groupId><artifactId>pdfbox</artifactId><version>2.0.24</version> <!-- 请检查最新版本 -->
</dependency>

2、获取PDF文件

 String filePath = "C:\\xx\\a.pdf"; // pdf的路径PDDocument document = PDDocument.load(new File(filePath));PDFTextStripper pdfStripper = new PDFTextStripper();// 排序文本行按其位置pdfStripper.setSortByPosition(true);//获取整个pdf文本内容String text = pdfStripper.getText(document);document.close();

3、获取需要的字段信息

    private Map<String,String> pdfStr(String invoiceInfo) {Map<String,String> map=new HashMap<>();//因解析出的括号不确定为中文还是英文，统一替换为英文字符invoiceInfo = invoiceInfo.replaceAll("（","(").replaceAll("）",")");// 定义正则表达式模式Pattern patternInvoiceNumber = Pattern.compile("发票号码：(\\d+)");// 创建Matcher对象Matcher matcherInvoiceNumber = patternInvoiceNumber.matcher(invoiceInfo);// 提取数据if (matcherInvoiceNumber.find()) {map.put("invoiceNumber",matcherInvoiceNumber.group(1));}return map;}

4、获取多字段时，步骤3需要优化，以下为优化后代码

public static Map<String, String> pdfStr(String invoiceInfo) {// 提取数据Map<String, String> result = new HashMap<>();invoiceInfo = invoiceInfo.replaceAll("（", "(").replaceAll("）", ")");// 定义正则表达式模式Map<String, String> patterns = new HashMap<>();patterns.put("invoiceNumber", "发票号码：(\\d+)");patterns.put("invoiceDate", "开票日期：(\\d{4}年\\d{1,2}月\\d{1,2}日)");patterns.put("buyerName", "购 名称：(.+?) 销 名称：(.+?)\n");patterns.put("itemDetails", "税 额\\s+(.*?)合 计");patterns.put("total", "\\(小写\\)¥(\\d+(\\.\\d+)?)");patterns.put("batchNumber", "批号：(.+?)/");patterns.put("productionDate", "生产日期：(\\d{4}-\\d{1,2}-\\d{1,2})/");patterns.put("expirationDate", "有效期至:(\\d{4}-\\d{1,2}-\\d{1,2})/");patterns.put("taxIncludedPrice", "含税单价：(\\d+(\\.\\d+)?)");patterns.put("manufacturer", "生产厂家:(.+?)/");patterns.put("approvalNumber", "批准文号:(.+?)/");patterns.put("issuer", "开票人：(.+)");for (Map.Entry<String, String> entry : patterns.entrySet()) {Pattern pattern = Pattern.compile(entry.getValue(), Pattern.DOTALL);Matcher matcher = pattern.matcher(invoiceInfo);if (matcher.find()) {result.put(entry.getKey(), matcher.group(1).trim());}}// 处理项目名称、规格型号、单位、数量、单价、金额、税率/征收率、税额if (result.containsKey("itemDetails")) {String[] details = result.get("itemDetails").replace("\n", " ").split(" ");if (details.length >= 8) {result.put("productName", details[0].trim() + (details.length > 8 ? details[8].trim() : ""));result.put("specification", details[1].trim());result.put("unit", details[2].trim());result.put("quantity", details[3].trim());result.put("unitPrice", details[4].trim());result.put("amount", details[5].trim());result.put("taxRate", details[6].trim());result.put("taxAmount", details[7].trim());}}return result;}