利用Jacob将Excel转换PDF的问题汇总

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package com.gyg.util;

import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.ComThread;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;
import com.spire.xls.FileFormat;
import com.spire.xls.Workbook;
import com.spire.xls.Worksheet;
import lombok.extern.slf4j.Slf4j;

/**
 * @author YunGang.Guo
 * @date 2022/01/05 16:44
 **/
@Slf4j
public class ExcelToPDFUtil {
    /**
     * 使用jacob实现excel转PDF
     *
     * @param inputFilePath  导入Excel文件路径
     * @param outputFilePath 导出PDF文件路径
     */
    public static void jacobExcelToPDF(String inputFilePath, String outputFilePath) {
        ActiveXComponent ax = null;
        Dispatch excel = null;

        try {
            ComThread.InitSTA();
            ax = new ActiveXComponent("Excel.Application");
            ax.setProperty("Visible", new Variant(false));
            //禁用宏
            ax.setProperty("AutomationSecurity", new Variant(3));

            Dispatch excels = ax.getProperty("Workbooks").toDispatch();

            Object[] obj = {
                    inputFilePath,
                    new Variant(false),
                    new Variant(false)
            };

            excel = Dispatch.invoke(excels, "Open", Dispatch.Method, obj, new int[9]).toDispatch();

            //获取到sheets的集合对象
            Dispatch sheets = Dispatch.get(excel, "sheets").toDispatch();
            //获取到总表数
            int count = Dispatch.get(sheets, "count").changeType(Variant.VariantInt).getInt();
            for (int i = 1; i <= count; i++) {
                //获取到sheet页
                Dispatch sheet = Dispatch.invoke(sheets, "Item", Dispatch.Get, new Object[]{i}, new int[1]).toDispatch();
                Dispatch page = Dispatch.get(sheet, "PageSetup").toDispatch();
                //是否设置区域打印
                Dispatch.put(page, "PrintArea", false);
                //设置横向打印还是纵向打印
                Dispatch.put(page, "Orientation", 2);
                //设置缩放，值为100或false
                Dispatch.put(page, "Zoom", false);
                //所有行为一页
                Dispatch.put(page, "FitToPagesTall", false);
                //所有列为一页(1或false)
                Dispatch.put(page, "FitToPagesWide", 1);
                log.info("sheet页[" + i + "]设置成功，");
            }

            //转换格式
            Object[] obj2 = {
                    //PDF格式等于0
                    new Variant(0),
                    outputFilePath,
                    //0=标准（生成的PDF图片不会模糊），1=最小的文件
                    new Variant(0)
            };
            Dispatch.invoke(excel, "ExportAsFixedFormat", Dispatch.Method, obj2, new int[1]);

        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        } finally {
            if (excel != null) {
                Dispatch.call(excel, "Close", new Variant(false));
            }
            if (ax != null) {
                ax.invoke("Quit", new Variant[]{});
                ax = null;
            }
            ComThread.Release();
        }
    }
}

package com.gyg.util;

import com.alibaba.excel.write.handler.SheetWriteHandler;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.metadata.holder.WriteWorkbookHolder;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.util.CellRangeAddress;

/**
 * @author YunGang.Guo
 * @date 2022/04/20 11:30
 **/
public class PrintExcelHandler implements SheetWriteHandler {

    /**
     * 该sheet页的表头列数，用于冻结表头
     */
    int handColNum;

    PrintExcelHandler(int handColNum){
        this.handColNum = handColNum;
    }

    @Override
    public void beforeSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
    }

    @Override
    public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
        Sheet sheet = writeSheetHolder.getSheet();
        //冻结表头,设置打印的每一页上都加上标题行
        CellRangeAddress cellRangeAddress = new CellRangeAddress(0, 0, 0, handColNum);
        sheet.setRepeatingRows(cellRangeAddress);
        //设置横向打印
        sheet.getPrintSetup().setLandscape(true);
        sheet.getPrintSetup().setFitHeight((short) 0);
        //设置所有列为一页
        sheet.setFitToPage(true);
        //设置是否显示网格线
        sheet.setDisplayGridlines(false);
    }
}