java兑现打印PDF文件解决方案

java实现打印PDF文件解决方案
Java print service API本身支持打印, 但其并不具有解释PDF文件的能力,也就是说,用标准的Java Print API能够打印PDF文件, 但所用的打印机必须支持PDF打印标准,即打印机支持Post Script标准, 而这种打印机通常昂贵,目前市场上流通的廉价打印机(使用基于主机的驱动程序)基本不支持,故用Pure Java打印PDF这种想当然的简单事情变得复杂起来, 网上现有的解决方案通常是用OCX或是其它的本地解决方案, 不具有跨平台性,限于Windows平台.   这里介绍一种基于纯Java的产品.
PDF Renderer

本项目实现解析HTML文件转化成PDF文件，然后调用打印机打印PDF文件并支持横版打印，打印机的选择。。
欢迎转载学习，转载时请注明来自http://fuchangle.iteye.com/blog/1558749

项目需要的jar包
core-renderer.jar， iText-2.0.8.jar， iTextAsian.jar，
jsoup-1.6.1.jar，  PDFRenderer-0.9.0.jar

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.print.Book;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URL;
import java.nio.ByteBuffer;

import javax.print.PrintService;
import javax.print.PrintServiceLookup;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.xhtmlrenderer.pdf.ITextFontResolver;
import org.xhtmlrenderer.pdf.ITextRenderer;

import com.lowagie.text.DocumentException;
import com.lowagie.text.pdf.BaseFont;
import com.nudms.server.nurse.servlet.CompressDataServlet;
import com.sun.pdfview.PDFFile;
import com.sun.pdfview.PDFPage;
import com.sun.pdfview.PDFRenderer;
/**
 * 打印表单
 * @author fu-changle
 *
 */
public class PrintUtil {
	
	public void printmenu(String urlpath,String filepath, String printName) throws  IOException,DocumentException, PrinterException{
		URL url = new URL(urlpath);
		Document document =Jsoup.parse(url, 100000);
		String html = document.html();
		
		ITextRenderer renderer = new ITextRenderer();
		ITextFontResolver fontResolver = renderer.getFontResolver();    
        fontResolver.addFont(CompressDataServlet.FONTSPATH, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
        
        renderer.setDocumentFromString(html);
        renderer.layout(); 
        
        OutputStream os = new FileOutputStream(filepath);   
        renderer.createPDF(os); 
        os.close();
        
		int j=0;
		PrintService[] services = PrintServiceLookup.lookupPrintServices(null, null);
		if(services.length == 0){
			System.out.println("not found printer");
		}
		PrinterJob job = PrinterJob.getPrinterJob();
		for(PrintService ps: services){
			if(ps.getName().equals(printName)){
				job.setPrintService(services[j]);
			}else {
				j++;
			}
		}
		
		FileInputStream fis = new FileInputStream(filepath);
		byte[] pdfContent = new byte[fis.available()];
		fis.read(pdfContent, 0, fis.available());
		ByteBuffer buf = ByteBuffer.wrap(pdfContent);
		PDFFile pdfFile = new PDFFile(buf);
		
		Book bk = new Book();
		
		int num = pdfFile.getNumPages();
		for(int i=0; i<num; i++){
			PDFPage page = pdfFile.getPage(i+1);
			PageFormat pf = job.defaultPage();
			bk.append(new MyPDFPrintPage(page), pf);
			
			Paper paper = pf.getPaper();
			double x = 0;
			double y = 0; 
			
			if(page.getAspectRatio()<1){
				double width = page.getBBox().getWidth();
				double height = page.getBBox().getHeight();
				
				paper.setImageableArea(x, y, width, height);
				
				pf.setOrientation(PageFormat.PORTRAIT);
			}else{
				
				double width = page.getBBox().getHeight();
				double height = page.getBBox().getWidth();
				
				paper.setImageableArea(x, y, width, height);
				
				pf.setOrientation(PageFormat.LANDSCAPE);
			}
			pf.setPaper(paper);
			System.out.println();
		}
		job.setPageable(bk);
	    job.setJobName("My book");
	    try {
	        job.print();
	      } catch (Exception e) {
	    	  e.printStackTrace();
	      }
		}