1.获取html模板
public static void main(String[] args) {String htmlContent = getHtmlFileContent(templateName,dataMap);String exportType = "pdf";if (exportType.equals("pdf")){convertToPdf(htmlContent,filePath);}else {exportWord(htmlContent, filePath);}
}public static String getHtmlFileContent(String templateName, Map<String, Object> contentMap) {String htmlText = null;try {Configuration configuration = new Configuration();TemplateLoader templateLoader = new ClassTemplateLoader(PdfUtil.class, "/static/html/");configuration.setTemplateLoader(templateLoader);Template tpl = configuration.getTemplate(templateName);//解析模板并替换动态数据，最终content将替换模板文件中的${content}标签。htmlText = FreeMarkerTemplateUtils.processTemplateIntoString(tpl, contentMap);} catch (Exception e) {e.printStackTrace();}return htmlText;
}
保存文件为word
import com.itextpdf.html2pdf.ConverterProperties;import com.itextpdf.html2pdf.HtmlConverter;import com.itextpdf.html2pdf.resolver.font.DefaultFontProvider;import com.itextpdf.kernel.geom.PageSize;import com.itextpdf.kernel.pdf.PdfDocument;import com.itextpdf.kernel.pdf.PdfWriter;import com.itextpdf.layout.font.FontProvider;import com.itextpdf.text.pdf.BaseFont;import freemarker.cache.ClassTemplateLoader;import freemarker.cache.TemplateLoader;import freemarker.template.Configuration;import freemarker.template.Template;import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;import org.xhtmlrenderer.pdf.ITextRenderer;import java.io.*;import java.util.HashMap;import java.util.Locale;import java.util.Map;/*** 保存文件为word*/public static void exportWord(String content, String filePath) throws Exception {byte[] b = content.getBytes("GBK"); //这里是必须要设置编码的，不然导出中文就会乱码。ByteArrayInputStream bais = new ByteArrayInputStream(b);//将字节数组包装到流中POIFSFileSystem poifs = new POIFSFileSystem();DirectoryEntry directory = poifs.getRoot();DocumentEntry documentEntry = directory.createDocument("WordDocument", bais); //该步骤不可省略，否则会出现乱码。//输出文件File file = new File(filePath);FileOutputStream ostream = new FileOutputStream(file);poifs.writeFilesystem(ostream);bais.close();ostream.close();poifs.close();}
保存为pdf文档
import com.itextpdf.html2pdf.ConverterProperties;import com.itextpdf.html2pdf.HtmlConverter;import com.itextpdf.html2pdf.resolver.font.DefaultFontProvider;import com.itextpdf.kernel.geom.PageSize;import com.itextpdf.kernel.pdf.PdfDocument;import com.itextpdf.kernel.pdf.PdfWriter;import com.itextpdf.layout.font.FontProvider;import com.itextpdf.text.pdf.BaseFont;import freemarker.cache.ClassTemplateLoader;import freemarker.cache.TemplateLoader;import freemarker.template.Configuration;import freemarker.template.Template;import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;import org.xhtmlrenderer.pdf.ITextRenderer;import java.io.*;import java.util.HashMap;import java.util.Locale;import java.util.Map;public static void convertToPdf(String html,String pdfPath){// 中文和英文的格式//String pdfPath = "D:\\cumentPdf.pdf";File file = new File(pdfPath);try(OutputStream outputStream = new FileOutputStream(file)) {// 转换 HTML to PDFPdfWriter writer = new PdfWriter(outputStream);PdfDocument pdfDocument = new PdfDocument(writer);// 设置PDF大小pdfDocument.setDefaultPageSize(PageSize.A3);// 设置中文ConverterProperties converterProperties = new ConverterProperties();FontProvider fontProvider = new DefaultFontProvider(true, true, true);converterProperties.setFontProvider(fontProvider);// html转换PDFHtmlConverter.convertToPdf(html, pdfDocument, converterProperties);// 关闭pdfDocument.close();} catch (Exception e){e.fillInStackTrace();}}
2. pdf 转 excel
下载jar地址：https://mvnrepository.com/artifact/e-iceblue/spire.pdf/9.7.0
<dependency><groupId>e-iceblue</groupId><artifactId>spire.pdf</artifactId><version>9.7.0</version><scope>system</scope><systemPath>${project.basedir}/src/main/resources/lib/spire.pdf-9.7.0.jar</systemPath>
</dependency>
import com.spire.pdf.FileFormat;import com.spire.pdf.PdfDocument;public static void pdfToExcel(String pdfPath,String excelPath){//创建PdfDocument实例PdfDocument pdf = new PdfDocument();//加载PDF文档pdf.loadFromFile(pdfPath);//保存为Excelpdf.saveToFile(excelPath, FileFormat.XLSX);}
使用excel生成html模板
<dependency><groupId>e-iceblue</groupId><artifactId>spire.xls.free</artifactId><version>5.1.0</version><scope>system</scope><systemPath>${project.basedir}/src/main/resources/lib/spire.xls.free.5.1.0.jar</systemPath>
</dependency>package com.suninfo.analyse.test;import org.springframework.web.bind.annotation.*;
import com.spire.xls.*;public class ExcelToPdfOrHtml {public static void main(String[] args) {//读取excel文件地址String fileUrl = "D:\\CA_HOME\\upload\\杭州-2023-06-28 16-38-45.xlsx";//要转换的sheet页名称String sheetName = "Sheet1";Workbook wb = new Workbook();wb.loadFromFile(fileUrl);if(wb==null){throw new RuntimeException("文件不存在，请检查文件路径");}Worksheet worksheet = wb.getWorksheets().get(sheetName);PageSetup pageSetup = worksheet.getPageSetup();pageSetup.setPaperSize(PaperSizeType.PaperA4);pageSetup.setPrintArea("A1:J21");pageSetup.setZoom(80);if(worksheet==null){throw new RuntimeException("工作簿中不存在"+sheetName+"工作表，请检查");}//pdf存放路径String url = "D:\\CA_HOME\\upload\\excelToPdf1.pdf";//saveToPdf 如果该路径原本存在，直接生成文件，如果路径不存在，自动创建文件夹生成该路径
// worksheet.saveToPdf(url);worksheet.saveToHtml( "D:\\CA_HOME\\upload\\orgHtmlTemplate.html");}}
问题)
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