jasperreports 生成html

最新推荐文章于 2025-09-21 10:01:16 发布

原创最新推荐文章于 2025-09-21 10:01:16 发布 · 506 阅读

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#HTML #Flex

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本文介绍如何使用JasperReports从指定的.jasper文件生成HTML格式的报告，并通过Servlet将报告内容返回给客户端浏览器。该过程涉及加载报告模板、连接数据库、填充报告数据以及设置输出格式。


 public void doPost(HttpServletRequest request, HttpServletResponse response)     
             throws ServletException, IOException {     
    	    try{
    	     GetAndPostExample sqlConn = new GetAndPostExample();
    	     String path = "D:\\bems\\workspace\\flex_html\\src\\jspreport\\flexhtml.jasper";
    	     File reportFile1 = new File(path);
    			     JasperReport jasperReport = (JasperReport) JRLoader
    			             .loadObject(reportFile1.getPath());
    			     System.out.println(reportFile1.getPath());
    			     if (!reportFile1.exists())
    						throw new JRRuntimeException("没找到合同模板路径");

    			    Connection conn= sqlConn.getConnection();
    			    JasperPrint jasperPrint = JasperFillManager.fillReport(
    			              jasperReport, null, conn);
    			    JRHtmlExporter exporter = new JRHtmlExporter();
    			    response.setCharacterEncoding("GBK");   //处理中文乱码
    			    PrintWriter writer=response.getWriter();
    			    exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
    			    exporter.setParameter(JRExporterParameter.OUTPUT_WRITER,writer );
    			    exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE);
    			    exporter.setParameter(JRExporterParameter.CHARACTER_ENCODING, "GBK");  //处理中文乱码
    			    exporter.exportReport();
    			    writer.flush();    
    			    conn.close();
    	    }catch (SQLException e1) { 
    	    e1.printStackTrace(); }
    	     catch (JRException e) {
    	    // TODO Auto-generated catch block
    	    e.printStackTrace();
    	   }
    	 }