使用java中的PDFBox在pdf表格单元格中自动换行

如何解决使用java中的PDFBox在pdf表格单元格中自动换行

我正在使用 Java 中的 PDFBox 库创建 pdf 格式的表格。我能够绘制表格并在表格中填充数据，但在单元格中有很长的数据可用，我需要进行自动换行。 在我的项目中，不允许使用其他库，我们只能使用 PDFBox 来完成。

PDFBox 版本为 2.0.22

这是我正在使用的代码，

import java.io.IOException;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.font.PDType1Font;

public class Test2 {

private static final String[] PARKING_SPACE_REPORT_HEADERS = { "PARKING SPACE NAME","PARKING SPACE ADDRESS","APPROVED/REJECTED ON" };

public static void main(String[] args) throws IOException {
    PDDocument doc = new PDDocument();
    PDPage page = new PDPage();

    doc.addPage(page);

    PDPageContentStream contentStream = new PDPageContentStream(doc,page);

    String[][] content = { { "Bini k","TEST1","01-Sep-2020 01:57 PM" },{ "c","Job Description: Lorem ipsum dolor sit knajdsn kabsjflsnijasd kjdoisaosd sisa saihsihsahc sassah","2" },{ "e","f","3" },{ "g","h","4" },{ "i","j","5" } };

    drawTable(page,contentStream,700,100,content);
    contentStream.close();
    doc.save("C:\\software\\hello1030.pdf");
}

public static void drawTable(PDPage page,PDPageContentStream contentStream,float y,float margin,String[][] content) throws IOException {
    final int rows = content.length + 1;
    final int cols = content[0].length;
    final float rowHeight = 20f;
    final float tableWidth = page.getMediaBox().getWidth() - margin - margin;
    final float tableHeight = rowHeight * rows;
    final float colWidth = tableWidth / (float) cols;
    final float cellMargin = 5f;

    // draw the rows
    float nexty = y;
    for (int i = 0; i <= rows; i++) {
        contentStream.moveTo(margin,nexty);
        contentStream.lineTo(margin + tableWidth,nexty);
        contentStream.stroke();
        nexty -= rowHeight;
    }

    // draw the columns
    float nextx = margin;
    for (int i = 0; i <= cols; i++) {
        contentStream.moveTo(nextx,y);
        contentStream.lineTo(nextx,y - tableHeight);
        contentStream.stroke();
        nextx += colWidth;
    }

    // now add the text
    contentStream.setFont(PDType1Font.TIMES_ROMAN,12);
    float textx = margin + cellMargin;
    float texty = y - 15;
    for (int i = 0; i < content.length; i++) {
        for (int j = 0; j < content[i].length; j++) {
            String text = content[i][j];
            contentStream.beginText();
            contentStream.newLineAtOffset(textx,texty);
            if (text.length() > 20) {
                printMultipleLines(text,contentStream);
                textx += colWidth;
                contentStream.endText();
                continue;
            }
            contentStream.showText(text);
            contentStream.endText();
            textx += colWidth;
        }
        texty -= rowHeight;
        textx = margin + cellMargin;
    }
}

private static void printMultipleLines(String line,PDPageContentStream contentStream) {
    try {
        // Print line as 2 lines
        contentStream.showText(line.substring(0,90));
        contentStream.newLine();
        contentStream.showText(line.substring(90,line.length()));
    } catch (IOException e) {
        e.printStackTrace();
    }
}   }

这是我的pdf文件