html 转 pdf

骑猪看日落 2022-05-22 12:43 274阅读 0赞

private static String getWEB_INF(){
    		if(PdfUtl== null ){
    			PdfUtl =new PdfUtl();
    		}
    		if(PdfUtl.getClass().getClassLoader().getResource("/")==null){ 
    			WEB_INF="E:\\";
    		}else{
    			WEB_INF=PdfUtl.getClass().getClassLoader().getResource("/").getPath();
    		}
    		return WEB_INF;
    	}
    	
    	public static File createPdf(File outFile, String html) {
    		
    //		System.out.println(html);
    		OutputStream fos = null;
    		try {
    
    			DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
    			ByteArrayInputStream bais = new ByteArrayInputStream(html.getBytes("UTF-8"));
    			Document doc = builder.parse(bais); 
    			ITextRenderer renderer = new ITextRenderer();
    			
    			ITextFontResolver fontResolver = renderer.getFontResolver(); 
    			fontResolver.addFont(getWEB_INF() + "charts/simfang.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
    			fontResolver.addFont(getWEB_INF() + "charts/simkai.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
    			fontResolver.addFont(getWEB_INF() + "charts/simsun.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
    			fontResolver.addFont(getWEB_INF() + "charts/simfang_GB2312.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
    			fontResolver.addFont(getWEB_INF() + "charts/KaiTi_GB2312.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
    			fontResolver.addFont(getWEB_INF() + "charts/msyhbd.ttc", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
    			renderer.setDocument(doc, null);
    			fos = new FileOutputStream(outFile);
    			renderer.layout();
    			renderer.createPDF(fos);
    		} catch (Exception e) {
    			e.printStackTrace();
    			return null;
    		} finally {
    			try {
    				if (fos != null) {
    					fos.flush();
    					fos.close(); 
    				}
    				return outFile;
    			} catch (IOException e) {
    				e.printStackTrace();
    				return null;
    			}
    		}
    	}
    	public static boolean convertHtmlToPdf(String inputFile, String outputFile)
    	throws Exception {
    		
            OutputStream os = new FileOutputStream(outputFile);     
            ITextRenderer renderer = new ITextRenderer();     
            String url = new File(inputFile).toURI().toURL().toString(); 
           
            renderer.setDocument(url);   
            // 解决中文支持问题     
            ITextFontResolver fontResolver = renderer.getFontResolver();    
            fontResolver.addFont(getWEB_INF() + "\\charts\\simfang.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
            //解决图片的相对路径问题
            renderer.getSharedContext().setBaseURL("file:/D:/");
            renderer.layout();    
            renderer.createPDF(os);  
            
            os.flush();
            os.close();
    		return true;
    	}
    	
    	
    	public static void addPdfMark(File InPdfFile, File outPdfFile, byte [] imgBytes ){
    		try {
    			PdfReader reader = new PdfReader(new FileInputStream(InPdfFile));
    			PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(outPdfFile));
    			Image img =Image.getInstance(imgBytes);
    			img.setAbsolutePosition(160, 70);//添加图片尺寸
    			PdfContentByte under = stamp.getUnderContent(1);
    			under.addImage(img); 
    			stamp.close();// 关闭
    		} catch (FileNotFoundException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		} catch (IOException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		} catch (DocumentException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}  
    	}
    	public static void main(String[] args) throws IOException {
    			String  html="<html lang='en'><head><meta charset='UTF-8'/><title>Document</title></head><body style='font-family:SimSun;font-size:14px'>很久都不曾写过文章了，上一篇文章还是四个月之前的。以此去命题，并非有什么轻生的念头，只是有感而发，勿念。其实我很想做个自私的人，因为这会很久都不曾写过文章了，上一篇文章还是四个月之前的。以此去命题，并非有什么轻生的念头，只是有感而发，勿念。其实我很想做个自私的人，因为这会让你吃尽苦头又吃足了甜头。而你却依然活的天真活的开心——序。</body></html>";
    			File outFile = File.createTempFile("1234", ".pdf");
    			 PdfUtl.createPdf(outFile,html);
    		    System.out.println(outFile.getPath());
    	}
    }