JasperReports项目中的应用

转自：http://www.blogjava.net/vjame/archive/2013/10/12/404908.html

。

2.业务处理

    　　//返回报表查询结果     
　　　　List<ReportElectronicAccountMapping> list=bndStoreImportService.queryElectronicAccount(bndReportParam);
         if(list.size()>0){
　　　　　　　　　　//生成JasperPrint对象
             JasperPrint jp=JasperReportUtil.getPrint(JsonMapper.toJsonString(list), bndReportParam, request);
             //返回分页信息
             response.setHeader("maxPages", jp.getPages().size()+"");
             response.setHeader("pageNo", request.getParameter("pageNo"));
　　　　　　　　//导出报表
             JasperReportUtil.getExporter(bndReportParam, request, response, jp).exportReport();
         }else{
             response.setHeader("error",JasperReportUtil.stringToUnicode("没有查询到电子账册相关数据！"));
         }

3.

         String reportName=bndReportParam.getReportName();
         //文件路径
         String jasperModelpath = request.getSession().getServletContext().getRealPath("/WEB-INF/views/modules/bus/pcd/bonded/report/")+File.separator;
 //        String pp=Global.getProjectPath();
         //读取项目下此路径的报表样式文件
         File reportFile = new File(jasperModelpath+reportName+".jasper");
 //编译报表，读取jasperreport文件 生成JasperReport对象
         JasperReport jasperReport = (JasperReport) JRLoader.loadObjectFromFile(reportFile.getPath());

         //文件路径，这里单独保存一份，供有子表功能的报表提供路径。
         bndReportParam.setSubUrl(jasperModelpath);

         Map<String, Object> parameters = Maps.newHashMap();
         parameters.put(JsonQueryExecuterFactory.JSON_LOCALE, Locale.ENGLISH);
         parameters.put(JRParameter.REPORT_LOCALE, Locale.US);

 //各种报表样式处理结果
         if (reportName.equals("ReportAccount")) {
             jasperPrint=reportAccount(bndReportParam, parameters, jasperReport, json);
         }else if(reportName.equals("ReportWarning")){
             jasperPrint=reportWarning(bndReportParam, parameters, jasperReport, json);
         }else if(reportName.equals("ReportDisposeStatistics")){
             jasperPrint=reportDisposeStatistics(bndReportParam, parameters, jasperReport, json);
         }else if(reportName.equals("ReportLoss")){
             jasperPrint=reportLoss(bndReportParam, parameters, jasperReport, json);
         }else if(reportName.equals("ReportFree")){
             jasperPrint=reportFree(bndReportParam, parameters, jasperReport, json);
         }else if(reportName.equals("ReportDispose")){
             jasperPrint=reportDispose(bndReportParam, parameters, jasperReport, json);
         }else if(reportName.equals("ReportCompare")){
             jasperPrint=reportCompare(bndReportParam, parameters, jasperReport, json);
         }else if(reportName.equals("ReportRepair")){
             jasperPrint=reportRepair(bndReportParam, parameters, jasperReport, json);
         }
         return jasperPrint;

4.完善报表信息，填充数据

         //判断保税仓库还是自贸区仓库
         String storage="";
         if(bndReportParam.getBndStore()==null){
             storage=bndReportParam.getFtaStore().getName();
         }else{
             storage=bndReportParam.getBndStore().getName();
         }
         parameters.put("storage", storage);
         parameters.put("goodsType", bndReportParam.getBasCargoJt().getName());
         parameters.put("title", "电子账册");
         parameters.put("queryDate", DateUtils.formatDate(bndReportParam.getBeginDate(), "yyyy-MM-dd")
                                     +"至"+DateUtils.formatDate(bndReportParam.getEndDate(), "yyyy-MM-dd"));
         InputStream is = null;
         is = new ByteArrayInputStream(json.getBytes("utf-8"));
         parameters.put("JSON_INPUT_STREAM", is);
         return JasperFillManager.fillReport(jasperReport, parameters);

5.导出报表

         List<ReportElectronicAccountMapping> list=bndStoreImportService.queryElectronicAccount(bndReportParam);
         if(list.size()>0){
             JasperPrint jp=JasperReportUtil.getPrint(JsonMapper.toJsonString(list), bndReportParam, request);
             //返回分页信息
             response.setHeader("maxPages", jp.getPages().size()+"");
             response.setHeader("pageNo", request.getParameter("pageNo"));
             JasperReportUtil.getExporter(bndReportParam, request, response, jp).exportReport();
         }else{
             response.setHeader("error",JasperReportUtil.stringToUnicode("没有查询到电子账册相关数据！"));
         }

6.

     @SuppressWarnings("rawtypes")
     public static JRAbstractExporter getExporter(BndReportParam bndReportParam, HttpServletRequest request, HttpServletResponse response, JasperPrint jasperPrint) throws Exception{
         JRAbstractExporter exporter=null;
         if(bndReportParam.isPdf()){
             //PDF
             exporter=showPDF(request, response, jasperPrint);
         }else if(bndReportParam.isExcel()){
             //Excel
             exporter=showExcel(request, response, jasperPrint);
         }else if(bndReportParam.isPrint()){
             //打印
             exporter=print(request, response, jasperPrint);
         }else{
             //页面展示
             exporter=showHTML(request, response, jasperPrint);
         }
         return exporter;
     }

7.showPDF

     public static JRPdfExporter showPDF(HttpServletRequest request, HttpServletResponse response, JasperPrint jasperPrint) throws IOException{
         OutputStream outputStream = response.getOutputStream();

         response.setContentType("application/pdf");

         JRPdfExporter exporter = new JRPdfExporter();

         exporter.setExporterInput(new SimpleExporterInput(
                 jasperPrint));
         exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(
                 outputStream));
         return exporter;
     }

8.

     public static JRXlsAbstractExporter<XlsxReportConfiguration, XlsxExporterConfiguration, JRXlsxExporterContext> showExcel(HttpServletRequest request, HttpServletResponse response, JasperPrint jasperPrint) throws IOException{
         OutputStream outputStream = response.getOutputStream();
         response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
         response.setHeader("Content-Disposition",
                 "inline; filename=\"file.xlsx\"");

         JRXlsAbstractExporter<XlsxReportConfiguration, XlsxExporterConfiguration, JRXlsxExporterContext> exporter = new JRXlsxExporter();

         exporter.setExporterInput(new SimpleExporterInput(
                 jasperPrint));
         exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(
                 outputStream));

         SimpleXlsxReportConfiguration configuration = new SimpleXlsxReportConfiguration();
         configuration.setOnePagePerSheet(false);
         configuration.setWhitePageBackground(false);
         configuration.setShowGridLines(false);
         exporter.setConfiguration(configuration);

         return exporter;
     }

9.

 public static HtmlExporter print(HttpServletRequest request, HttpServletResponse response, JasperPrint jasperPrint) throws IOException{
         OutputStream outputStream = response.getOutputStream();
         HtmlExporter exporter = new HtmlExporter();
         SimpleHtmlExporterOutput output = new SimpleHtmlExporterOutput(outputStream);

         request.getSession()
         .setAttribute(
                 ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE,
                 jasperPrint);
         WebHtmlResourceHandler webHtmlResourceHandler = new WebHtmlResourceHandler(
                 "image?time=" + new Date().getTime() + "&image={0}");
         output.setImageHandler(webHtmlResourceHandler);

         exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
         exporter.setExporterOutput(output);
         //报表打印
         response.getOutputStream().print("<script src=\""+request.getContextPath()+"/static/print/print.js\" type=\"text/javascript\"></script><link href=\""+request.getContextPath()+"/static/print/print.css\" type=\"text/css\" rel=\"stylesheet\">");
         return exporter;
     }
     

10.showHTML

     public static HtmlExporter showHTML(HttpServletRequest request, HttpServletResponse response, JasperPrint jasperPrint) throws IOException{
         OutputStream outputStream = response.getOutputStream();
         HtmlExporter exporter = new HtmlExporter();
         SimpleHtmlExporterOutput output = new SimpleHtmlExporterOutput(outputStream);

         request.getSession()
                 .setAttribute(
                         ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE,
                         jasperPrint);
         WebHtmlResourceHandler webHtmlResourceHandler = new WebHtmlResourceHandler(
                 "image?time=" + new Date().getTime() + "&image={0}");
         output.setImageHandler(webHtmlResourceHandler);

         exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
         exporter.setExporterOutput(output);

         // configuration
         SimpleHtmlReportConfiguration configuration = new SimpleHtmlReportConfiguration();
         //设置当前页数
         configuration.setPageIndex(Integer.parseInt(request.getParameter("pageNo"))-1);

         exporter.setConfiguration(configuration);

         return exporter;