Java Itext 实现HTML 转换PDF
你猜
阅读:743
2021-03-31 20:58:34
评论:0
项目编码:
1、依赖文件
2、核心编码
<!--集成itext -->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.13</version>
</dependency>
<dependency>
<groupId>com.itextpdf.tool</groupId>
<artifactId>xmlworker</artifactId>
<version>5.5.13</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext-asian</artifactId>
<version>5.2.0</version>
</dependency>
package com.zzg.html.trans.pdf;
import java.io.ByteArrayInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
import com.itextpdf.text.Document;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.tool.xml.XMLWorkerHelper;
public class HtmlTransPDF {
/**
*
* @Title: htmlTransPdf
* @Description: html 转 pdf ,简单字符和数字
* @param: @param inputStream
* @param: @param outputStream
* @return: void
* @throws
*/
public static void htmlTransPdf(InputStream inputStream, OutputStream outputStream){
try{
Document document = new Document();
// 为该Document创建一个Writer实例
PdfWriter pdfwriter = PdfWriter.getInstance(document,
outputStream);
pdfwriter.setViewerPreferences(PdfWriter.HideToolbar);
// 打开当前的document
document.open();
XMLWorkerHelper.getInstance().parseXHtml(pdfwriter, document,inputStream);
document.close();
}catch(Exception e){
e.printStackTrace();
}
}
/**
*
* @Title: htmlTransPdfChinese
* @Description: html 转 pdf, 简单中文
* @param: @param pdfFile
* @param: @param content
* @return: void
* @throws
*/
public static void htmlTransPdfChinese(String pdfFile, String content){
try{
Document document = new Document();
// 为该Document创建一个Writer实例
PdfWriter pdfwriter = PdfWriter.getInstance(document,
new FileOutputStream(pdfFile));
pdfwriter.setViewerPreferences(PdfWriter.HideToolbar);
// 打开当前的document
document.open();
XMLWorkerHelper.getInstance().parseXHtml(pdfwriter, document,new ByteArrayInputStream(content.getBytes("Utf-8")),Charset.forName("UTF-8"));
document.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
测试代码:
package com.zzg.html.trans.pdf.test;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import com.zzg.html.trans.pdf.HtmlTransPDF;
public class HtmlTransPDFTest {
// public static void main(String[] args) {
// // TODO Auto-generated method stub
// String htmlPath = "c:\\image\\2.html";
// String pdfPath ="c:\\image\\2.pdf";
// File htmlFile = new File(htmlPath);
// File pdfFile = new File(pdfPath);
// if(htmlFile.exists()){
// if(!pdfFile.exists()){
// try {
// pdfFile.createNewFile();
// } catch (IOException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// }
// // html开始转换
// try {
// HtmlTransPDF.htmlTransPdf(new FileInputStream(htmlFile), new FileOutputStream(pdfFile));
// } catch (FileNotFoundException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// }
// }
public static void main(String[] args) {
String htmlPath = "C:\\image\\2.html";
String pdfPath = "C:\\image\\3.pdf";
String content = "";
File htmlFile = new File(htmlPath);
File pdfFile = new File(pdfPath);
if(htmlFile.exists()){
if(!pdfFile.exists()){
try {
pdfFile.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// 开始读取html 文件内容
BufferedReader br;
try {
br = new BufferedReader(new InputStreamReader(
new FileInputStream(htmlFile), "UTF-8"));
String row = "";
while ((row = br.readLine()) != null) {
// System.out.println(t);
content += row;
}
HtmlTransPDF.htmlTransPdfChinese(pdfPath, content);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
声明
1.本站遵循行业规范,任何转载的稿件都会明确标注作者和来源;2.本站的原创文章,请转载时务必注明文章作者和来源,不尊重原创的行为我们将追究责任;3.作者投稿可能会经我们编辑修改或补充。