企业级-封装Java对内卷PDF利用关键字分页导出标题

提供 PDF 文件 File入参，根据需要将其中内卷文件需要分页利用关键字读取分页，转成 XML。

使用 依赖：itextpdf、pdfbox

1、导入依赖

    org.apache.pdfbox
    pdfbox
    2.0.21



    com.itextpdf
    itextpdf
    5.5.13.3

2、封装代码：PdfPaginationUtil

package com.gwssi.common.servicesupport.test.generator.service.impl;
import com.gwssi.util.Md5TokenGenerator;
import com.gwssi.util.PDFencodeUtil;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.SimpleBookmark;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.text.PDFTextStripper;
import org.apache.pdfbox.text.TextPosition;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
/**
 * @Auther: fyp
 * @Date: 2024/6/17
 * @Description:
 * @Package: com.gwssi.common.servicesupport.test.generator.service.impl
 * @Version: 1.0
 */
public class PdfPaginationUtil {
    private static final String[] keyWords = new String[]{"1", "2", "3"};
    private static final String[] keyTitleWords = new String[]{"4", "5", "6"};
    public List transToXml(File file) {
        //1.给定文件
        PdfReader reader = null;
        try {
            InputStream is = new FileInputStream(file);
            reader = new PdfReader(is);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        //2.定义一个byte数组，长度为文件的长度
        byte[] pdfData = new byte[(int) file.length()];
        //3.IO流读取文件内容到byte数组
        FileInputStream inputStream = null;
        try {
            inputStream = new FileInputStream(file);
            inputStream.read(pdfData);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        }
        List elecFileItemList =new LinkedList();
        Map elecFileItemMap= new HashMap();
        List list = SimpleBookmark.getBookmark ( reader ) ;
        ListinnerfileItemList =new LinkedList();
        String elecFileName = file.getName();
        for (int i = 0; i