提取数据（实验室检查）

/**
 * 实验室检查
 */
public class BeginPathology {
    public static void main(String[] args) throws Exception {
        try {

            String folderPath = "C:\\Users\\kfeng5\\OneDrive - DXC Production\\Desktop\\年假工作";
            File folder = new File(folderPath);
            File[] files = folder.listFiles();

            if (files != null) {
                for (File file : files) {
                    if (file.getName().endsWith(".pdf")) {
                        PDDocument document = PDDocument.load(file);
                        PDFTextStripper stripper = new PDFTextStripper(); // 初始化文本剥离器
                        String text = stripper.getText(document);
                        String[] lines = text.split("\n");

                        boolean nameFlag = false;
                        boolean infoFlag = false;
                        boolean underFlag = false;
                        boolean numberFlag = false;
                        String name = null;
                        String type = null;
                        String[] split = null;
                        StringBuilder sb = new StringBuilder();
                        Map<String, String> hashMap = new HashMap<>();
                        for (String line : lines) {

                            Pattern compile0 = Pattern.compile("^\\d+(.*)");
                            Matcher matcher0 = compile0.matcher(line.trim());
                            if (matcher0.find()) {
                                if (StringUtils.isBlank(matcher0.group(1))) {
                                    continue;//跳出此line
                                }
                            }

                            if (line.startsWith("附件")) {
                                nameFlag = true;
                                continue;
                            }

                            if (nameFlag) {
                                Pattern pattern = Pattern.compile("(.*)诊疗方案");
                                Matcher matcher = pattern.matcher(line);
                                if (matcher.find()) {
                                    name = matcher.group(1);
                                    nameFlag = false;
                                    continue;
                                }
                            }

                            Pattern compile1 = Pattern.compile("(.*)、实验室检查");
                            Matcher matcher1 = compile1.matcher(line.trim());
                            if (matcher1.find()) {
                                infoFlag = true;
                                continue;//跳出此line
                            }
                            if(infoFlag){
                                if(line.length()>1){
                                    if(line.charAt(1)=='、'){
                                        System.out.println(name+"!"+type+"!"+sb.toString().replaceAll("\r",""));
                                        infoFlag = false;
                                        break;
                                    }
                                }else {
                                    System.out.println(name + "!" + "此行没有第二个字符，不能检测是否有顿号");
                                }

                                //TODO 当有以此开头的非目标内容时，会被按目标内容格式输出，所以数据异常,需调整
                                if (line.startsWith("（")) {
                                    sb = getNewBuilder(sb, name, type);
                                    //切割统一3位。得到（一）xxx检查   的xxx
                                    type = line.substring(3).replaceAll("\r","");
                                    underFlag = true;
                                    continue;//跳出此line
                                }
                                if (underFlag) {
                                    Pattern compile2 = Pattern.compile("^\\d\\.(.*)");
                                    Matcher matcher2 = compile2.matcher(line.trim());
                                    if(matcher2.find()){
                                        sb = getNewBuilder(sb, name, type);
                                        line = matcher2.group(1);
                                        //split = matcher2.group(1).split("：", 2);
                                    }
                                    sb.append(line);
                                    continue;
                                }
                            }
                        }
                        document.close();
                    }
                }
            }
        }catch(Exception e){
            throw new Exception(e);
        }
    }

    //检测到标志，如果sb不为空，输出sb的内容
    private static StringBuilder getNewBuilder(StringBuilder sb, String name, String type) {
        if (sb.toString().length() != 0 && sb != null) {
            System.out.println(name + "!" + type + "!" + sb.toString().replaceAll("\r", ""));
            sb = new StringBuilder();
        }
        return sb;
    }
}

取String类型的字符。对象.charAt(位)。
String对象类型内容的比较，用对象1.equals（对象2）方法。