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");
 7 //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;