Java는 양식 데이터의 PDF 가져오기 및 구문 분석 기능을 구현합니다.

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13.2</version>
</dependency>

import com.itextpdf.text.Document;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.pdf.AcroFields;
import com.itextpdf.text.pdf.PdfWriter;

import java.io.FileOutputStream;

public class PDFImporter {

    public static void main(String[] args) {
        try {
            // 创建PDF文档对象
            Document document = new Document(PageSize.A4);

            // 创建PDF书写器对象
            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("form.pdf"));

            // 打开文档
            document.open();

            // 创建表单对象
            AcroFields form = writer.getAcroFields();

            // 添加文本表单域
            form.addTextField("username");

            // 关闭文档
            document.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import com.itextpdf.text.pdf.AcroFields;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStamper;

import java.io.FileOutputStream;

public class PDFImporter {

    public static void main(String[] args) {
        try {
            // 创建PDF读取器对象
            PdfReader reader = new PdfReader("form.pdf");

            // 创建PDF书写器对象
            PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("filled_form.pdf"));

            // 获取表单对象
            AcroFields form = stamper.getAcroFields();

            // 填充表单数据
            form.setField("username", "John Doe");

            // 关闭书写器
            stamper.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.text.PDFTextStripper;

import java.io.File;

public class PDFParser {

    public static void main(String[] args) {
        try {
            // 加载PDF文档
            PDDocument document = PDDocument.load(new File("filled_form.pdf"));

            // 创建PDF文本剥离对象
            PDFTextStripper stripper = new PDFTextStripper();

            // 提取文本内容
            String content = stripper.getText(document);
            System.out.println(content);

            // 关闭PDF文档
            document.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}