IText 导出PDF

image.png

import java.io.FileOutputStream;

import com.lowagie.text.*;
import com.lowagie.text.pdf.PdfPCell;
 import com.lowagie.text.pdf.PdfPTable;
 import com.lowagie.text.pdf.PdfWriter;
import com.rh.soc.assetmanage.model.pdf.PdfParagraph;

/**
 * @author GQ
 */
public class ITextPdfUtil {

    private static float lineHeight = (float)25.0;
    private static PdfPTable tables =new PdfPTable(3);

    public static void main(String[] args) {
         String tmpPath ="C:\\Users\\53601\\Downloads\\test1.pdf";
         try{
             Rectangle rectangle1 = new Rectangle(1684.0F, 842.0F);
             Document pdfDoc =new Document(rectangle1, 50, 50, 50, 50);
             PdfWriter.getInstance(pdfDoc, new FileOutputStream(tmpPath));
             pdfDoc.open();
             //当前页放满换行，避免出现空白行
             tables.setSplitLate(false);
             tables.setWidthPercentage(60);
             
             //handler
             writeHandler();

             //body
             for (int i = 0; i < 2; i++) {
                 writeBody();
             }

             pdfDoc.add(tables);

             pdfDoc.close();
        
         } catch(Exception e) {
            e.printStackTrace();
         }
    }

    private static void writeHandler(){
        PdfPCell cell;
        cell =new PdfPCell(new PdfParagraph("设备编号", 22, true));
        setCell(cell, lineHeight);

        //fill cell
        cell =new PdfPCell(new PdfParagraph("设备名称", 22, true));
        setCell(cell, lineHeight);

        //create a table to fill cell
        PdfPTable iTable =new PdfPTable(2);
        PdfPCell iCell =new PdfPCell(new PdfParagraph("指标值", 18, true));
        iCell.setHorizontalAlignment(Element.ALIGN_CENTER);
        iCell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        iCell.setFixedHeight(lineHeight);
        //merge column
        iCell.setColspan(2);
        iTable.addCell(iCell);

        mergeColumn(iTable, "指标",true);
        mergeColumn(iTable, "是否正常",true);

        cell =new PdfPCell(iTable);
        cell.setPadding(0);
        tables.addCell(cell);
    }

    private static void writeBody() {
        PdfPCell cell;

        //fill cell
        cell =new PdfPCell(new PdfParagraph("A", 18, false));
        setCell(cell, lineHeight);

        //fill cell
        cell =new PdfPCell(new PdfParagraph("B", 18, false));
        setCell(cell, lineHeight);

        //create a table to fill cell
        PdfPTable iTable =new PdfPTable(2);

        for (int i = 0; i < 10; i++) {
            //merge column
            mergeColumn(iTable, "C"+i,false);
            mergeColumn(iTable, "D"+i,false);
        }

        cell =new PdfPCell(iTable);
        cell.setPadding(0);
        tables.addCell(cell);
    }

    private static void mergeColumn(PdfPTable iTable, String c,boolean isBold) {
        PdfPCell iCell;
        iCell = new PdfPCell(new PdfParagraph(c, 16, isBold));
        iCell.setHorizontalAlignment(Element.ALIGN_CENTER);
        iCell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        iCell.setFixedHeight(lineHeight);
        iTable.addCell(iCell);
    }

    private static void setCell(PdfPCell cell, float height) {
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setPadding(0);
        cell.setFixedHeight(height);
        tables.addCell(cell);
    }


}