jasperreport+Lodop 实现客户端打印

狼王_ 2017-09-12 02:42:03

我在Servlet 中通过 jasperreport 生成的 html 流，



protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		JasperReport jasperReport = null;

		JasperPrint jasperPrint = null;

		

		//指定 *.jasper 文件的路径和名称

		String jasperFileName = this.getServletContext().getRealPath("/")+ "reports/report_baishi.jasper";

		

		try {

			//指定 *.jasper 文件的路径和名称

			jasperReport = (JasperReport) JRLoader.loadObjectFromFile(jasperFileName);

			

			//载入报表模板文件

			List<GoodsBean> listBean = new ArrayList<GoodsBean>(); // 这个list是最后塞入的数据，必须为List类型

			listBean.add(new GoodsBean("刘涛1","13528883876","辽宁省大连市甘井子区大连甘井子区泉水A2区","辽宁-大连-甘井子","番茄直购","夏普Sharp 加湿空气净化器 搭载净离子群 KC-F70-W","50569310205581","50569310205581"));



			// 把bean转成jasper的数据源用来下边塞给报表

			JRDataSource dataSource = new JRBeanCollectionDataSource(listBean);

			

			HashMap<String,Object> strParameter= new HashMap<String,Object>();

			

			strParameter.put("imgPath",  this.getServletContext().getRealPath("/")+ "reports/img/");

			jasperPrint=JasperFillManager.fillReport(jasperReport, strParameter,dataSource);



			//导出 html

			response.setContentType("text/html;charset=GB2312");

            //获得输出流 ,这里不能这样response.getOutputStream()  

            PrintWriter printWriter = response.getWriter();  

            //创建JRHtmlExporter对象  

            JRHtmlExporter htmlExporter = new JRHtmlExporter();  

            //把jasperPrint到Session里面(net.sf.jasperreports.j2ee.jasper_print)  

            request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);  

            //设值jasperPrint  

            htmlExporter.setParameter(JRExporterParameter.JASPER_PRINT,jasperPrint);  

            

            //设置输出  

            htmlExporter.setParameter(JRExporterParameter.OUTPUT_WRITER,printWriter);  

            

            //设置图片生成的Servlet(生成图片就用这个ImageServlet,并且要在XML文件里面配置 image?image=这个是Servlet的url-pattern)  

            htmlExporter.setParameter(JRHtmlExporterParameter.IMAGES_URI,"http://localhost:8090/threePrint/servlet/image?image=");  

            //导出  

            htmlExporter.exportReport();      

            printWriter.close();



		} catch (JRException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}	

		

	}

在前台通过 lodop 打印：



<script src="js/LodopFuncs.js"></script>

<script language="javascript" type="text/javascript">

function doTest() {



		$.ajax({

			url : "servlet/printBaishiServlet",

			data : {},

			dataType : "text",

			async : false,

			success : function(data) {

				LODOP = getLodop();

				LODOP.ADD_PRINT_HTM(0, 0, 0, 0, data);

				LODOP.PRINT();

				//alert(data);

				//$("#form1").formSerialize(data);

			}

		});

	}

</script>



<input type="button" value="测试打印" onclick="doTest();">