spring根据ftl模板导出pdf文件并打印成jar包

最新推荐文章于 2023-12-18 11:34:29 发布

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最新推荐文章于 2023-12-18 11:34:29 发布 · 621 阅读

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#pdf文件打包下载

本文介绍了如何在Spring项目中配置Maven，创建PDFUtils类，通过读取FTL模板并填充数据生成PDF文件，最终将生成的PDF打包成jar进行下载。

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导出pdf文件并打印成jar包

首先需要在maven中做配置

// An highlighted block
	<!-- spring 配置 -->
	<dependency>
	  <groupId>spring-wl</groupId>
	  <artifactId>spring</artifactId>
	  <version>3.0</version>
	</dependency>
	
	<dependency>
		<groupId>com.itextpdf.tool</groupId>
		<artifactId>xmlworker</artifactId>
		<version>5.5.6</version>
	</dependency>
	<dependency>
		<groupId>com.itextpdf</groupId>
		<artifactId>itext-asian</artifactId>
		<version>5.2.0</version>
	</dependency> 
	
	<dependency>
	  <groupId>freemarker</groupId>
	  <artifactId>freemarker</artifactId>
	  <version>2.3.8</version>
	</dependency>

然后创建一个PDFUtils类

package workbench.utils;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;

import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Font;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.tool.xml.Pipeline;
import com.itextpdf.tool.xml.XMLWorker;
import com.itextpdf.tool.xml.XMLWorkerFontProvider;
import com.itextpdf.tool.xml.XMLWorkerHelper;
import com.itextpdf.tool.xml.html.CssAppliers;
import com.itextpdf.tool.xml.html.CssAppliersImpl;
import com.itextpdf.tool.xml.html.Tags;
import com.itextpdf.tool.xml.parser.XMLParser;
import com.itextpdf.tool.xml.pipeline.css.CSSResolver;
import com.itextpdf.tool.xml.pipeline.css.CssResolverPipeline;
import com.itextpdf.tool.xml.pipeline.end.PdfWriterPipeline;
import com.itextpdf.tool.xml.pipeline.html.HtmlPipeline;
import com.itextpdf.tool.xml.pipeline.html.HtmlPipelineContext;

import freemarker.template.Configuration;
import freemarker.template.Template;

public class PDFUtil {
   
   

	public static ByteArrayOutputStream createPdf(String templateName,Map<String, Object> data) throws IOException, DocumentException {
   
   
		
		Configuration configuration = new Configuration();
		// 设置模板文件保存的目录
		try {
   
   
			configuration.setDirectoryForTemplateLoading(new File("模板保存的路径");
		
		// 设置文件的编码格式，一般是utf-8
		configuration.setDefaultEncoding("GBK");
		// 加载一个模板文件，创建一个模板对象
		Template template  = configuration.getTemplate(templateName);
		 
	   String html = FreeMarkerTemplateUtils.processTemplateIntoString(template, data);
		
		 ByteArrayOutputStream baos = new ByteArrayOutputStream();
	   // step 1
	   Document document = new Document();
	   PdfWriter writer = PdfWriter.getInstance(document,baos);    
	   document.open();
	   
	   XMLWorkerFontProvider fontProvider = new XMLWorkerFontProvider() {
   
   

	       @Override
	       public Font getFont(String fontname, String encoding, boolean embedded, float size, int style, BaseColor color) {
   
   
	           Font font = null;
	           try {
   
   
	               font = new Font(com.itextpdf.text.pdf.BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED));
	               font.setStyle(style);
	               font.setColor(color);
	               if (size>0){
   
   
	                   font.setSize(size);
	               }
	           } catch (DocumentException e) {
   
   
	               e.printStackTrace();
	           } catch (IOException e) {
   
   
	               e.printStackTrace();
	           }
	           return font;
	       }
	   };