动态生成的html页面转pdf并且打印预览-优快云博客

本文链接：https://blog.youkuaiyun.com/a1968640005/article/details/74938790

本文介绍如何使用JavaScript动态生成HTML页面，通过itext将HTML转换为PDF，并在前端进行打印预览。涉及HTML页面拼接、PDF转换及打印预览的完整流程。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

文章说明

程序的功能：

通过js动态生成html页面并将该页面传送到后台转成pdf，再通过前台将pdf打印预览

先大约讲述一下具体实现过程

1、在js页面将你自己需要拼装好html页面通过ajax传到后台

2、通过itext将html页面转成pdf

3、js将pdf打印预览

具体代码

代码下载地址http://download.youkuaiyun.com/detail/a1968640005/9894741

1、js 拼接html页面并且将html传后台的代码

$.ajax({
type:"POST",
url:"/ArchivesManagementSystem/userAction!checkLogin.action",
dataType:"json",
data:{"printHtml":printHtml,"printHtml2":printHtml2},
success:function(data){
print2();
}
});

2、html转pdf代码

该功能需要3个包 core-renderer 、iText-2.0.8、itextpdf-5.4.5

//action 层

public String checkLogin() {
try{
System.out.println("开始转换pdf");
PdfUtil.htmlToPdf("C:/tomacat/webapps/ArchivesManagementSystem/print/print.pdf",printHtml);
return SUCCESS;
}catch (Exception e) {
System.out.println(e.getMessage());
return fail;
}
}

//导入的包

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;

import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.SimpleDoc;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.Copies;
import javax.print.attribute.standard.Sides;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.xhtmlrenderer.pdf.ITextFontResolver;
import org.xhtmlrenderer.pdf.ITextRenderer;

import com.lowagie.text.pdf.BaseFont;

import org.w3c.dom.Document;

/**
* 把URL转换为PDF
*
* @param outputFile
* ，示例：/data/fs/inspector/BJ20150522001.pdf
* @param url
* ，示例：http :xxxx
* @return
* @throws Exception
*/
public static boolean htmlToPdf(String outputFile, String url)throws Exception {
File outFile = new File(outputFile);
if (!outFile.exists()) {
outFile.getParentFile().mkdirs();
}

OutputStream os = new FileOutputStream(outputFile);

DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document doc = builder.parse(new ByteArrayInputStream(url.getBytes("UTF-8")));

//Document document = new Document(PageSize.A4, 50, 50, 50, 50);
ITextRenderer renderer = new ITextRenderer();

renderer.setDocument(doc, null);

//renderer.setDocument(url);
String fontPath = PdfUtil.class.getClassLoader().getResource("").toString().replaceAll("file:/", "")+ "simsun.ttc";
System.out.println(fontPath);

// 解决中文支持问题
ITextFontResolver fontResolver = renderer.getFontResolver();
fontResolver.addFont(fontPath, BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
renderer.layout();
renderer.createPDF(os);
os.flush();
os.close();

System.out.println("文件转换成功");
return true;
}

3、将pdf打印预览

在打印的html页面上需要推荐博文 http://www.cnblogs.com/imfjj/p/5946289.html

添加 <iframe style="display:none" name = 'printIframe2' id="printIframe" src="/Print/print/print.pdf"></iframe>

js代码

function print2(){

//添加ifrme标签
$("#addiframe").html("<iframe style='display:none' name = 'printIframe2' id='printIframe' src='/ArchivesManagementSystem/print/print.pdf'>");

//打印预览
$("#printIframe")[0].contentWindow.print();
}