package com.stylefeng.guns.modular.system.util.itextpdf;
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import com.itextpdf.html2pdf.ConverterProperties;
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import com.itextpdf.html2pdf.HtmlConverter;
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import com.itextpdf.kernel.events.PdfDocumentEvent;
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import com.itextpdf.kernel.font.PdfFont;
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import com.itextpdf.kernel.font.PdfFontFactory;
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import com.itextpdf.kernel.geom.PageSize;
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import com.itextpdf.kernel.pdf.PdfDocument;
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import com.itextpdf.kernel.pdf.PdfWriter;
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import com.itextpdf.layout.font.FontProvider;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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/**
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* @author zhibing.pu
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* @Date 2023/8/14 11:13
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*/
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public class HtmlToPdfUtils {
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public static void convertToPdf(InputStream inputStream, String waterMark, OutputStream outputStream) throws IOException {
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PdfWriter pdfWriter = new PdfWriter(outputStream);
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PdfDocument pdfDocument = new PdfDocument(pdfWriter);
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//设置为A4大小
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pdfDocument.setDefaultPageSize(PageSize.A4);
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//添加水印
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pdfDocument.addEventHandler(PdfDocumentEvent.END_PAGE, new WaterMarkEventHandler(waterMark));
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//添加页码
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//pdfDocument.addEventHandler(PdfDocumentEvent.END_PAGE,new PageEventHandler());
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//添加中文字体支持
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ConverterProperties properties = new ConverterProperties();
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FontProvider fontProvider = new FontProvider();
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PdfFont sysFont = PdfFontFactory.createFont("STSongStd-Light", "UniGB-UCS2-H", false);
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fontProvider.addFont(sysFont.getFontProgram(), "UniGB-UCS2-H");
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//添加自定义字体，例如微软雅黑
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/*if (StringUtils.isNotBlank(fontPath)){
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PdfFont microsoft = PdfFontFactory.createFont(fontPath, PdfEncodings.IDENTITY_H, false);
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fontProvider.addFont(microsoft.getFontProgram(), PdfEncodings.IDENTITY_H);
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}*/
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properties.setFontProvider(fontProvider);
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HtmlConverter.convertToPdf(inputStream, pdfDocument, properties);
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pdfWriter.close();
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pdfDocument.close();
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}
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}
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