日期:2014-05-17  浏览次数:20678 次

第一次用ireport 怎么建个excel啊
第一次用ireport 怎么建个excel啊  

谁能教教我啊 我q 279773998

------解决方案--------------------
Java code

 /**
     * 生成報表的公用方法
     * @param result
     * @param jrxmlName
     * @throws Exception
     */
    public void executeReportCommon(Collection<?> result,String name,String rptOutputPath,String jrxmlName,HttpServletResponse resp){
        try{
            System.out.println(result.size());
            if(result!=null && !result.isEmpty()){
                String reportName="";
                reportName=name+".xls";
                System.out.println(rptOutputPath);
                System.out.println(jrxmlName);
                this.exportXls(result, jrxmlName, rptOutputPath, reportName,resp);
            }
        }catch(Exception e){
            e.printStackTrace();
            e.getMessage();
        }
    }
        
        /**
         * 根據條件生成Xls報表
         * @param result Collection<Object> 結果集
         * @param parameters Map  其他顯示的屬性 如列印事件  條件 等 可以為null
         * @param reportName 文件名字
         * @throws Exception 
         */
        public void exportXls(Collection<?> result,String jrxmlName,String rptOutputPath,String reportName,HttpServletResponse resp){
            try{
                JasperReport jasperReport = null;
                if(jrxmlName != null && !jrxmlName.equals("")){
                    System.out.println("1");
                    String file = TEMPLATE + jrxmlName+ ".jrxml";
                    System.out.println(file);
                    InputStream inputStream = this.getClass().getResourceAsStream(file);
                    
                    System.out.println(inputStream);

                    JasperDesign design = JRXmlLoader.load(inputStream);
                    jasperReport = JasperCompileManager.compileReport(design);
                }
                JasperPrint print = JasperFillManager.fillReport(jasperReport,null,new JRBeanCollectionDataSource(result));
                if(System.getProperty("os.name").contains("Windows")){
                    System.out.println("2");
                    rptOutputPath = rptOutputPath.replaceAll("\\"+"\\", "\\"+"\\"+"\\"+"\\");
                    File file1 = new File(rptOutputPath);
                    if(!file1.exists()){
                        file1.mkdirs();
                    }else{
                        if(!file1.isDirectory()){
                            file1.mkdirs();
                        }
                    }
                    
                    rptOutputPath=rptOutputPath+"\\"+ reportName;
                }else{
                    System.out.println("3");
                    File file1 = new File(rptOutputPath);
                    System.out.println(file1.toString());
                    if(!file1.exists()){
                        file1.mkdirs();
                    }else{
                        if(!file1.isDirectory()){
                            file1.mkdirs();
                        }
                    }
                    rptOutputPath = rptOutputPath+File.separator+reportName;
                    System.out.println(rptOutputPath);
                }
                File file = new File(rptOutputPath);
                System.out.println(file.getParent());
                File destFile = new File(file.getParent(), reportName);
                ByteArrayOutputStream oStream = new ByteArrayOutputStream();
                JRXlsExporter exporterXls = new JRXlsExporter();
                
                exporterXls.setParameter(JRExporterParameter.JASPER_PRINT, print);
                exporterXls.setParameter(JRExporterParameter.OUTPUT_FILE_NAME, destFile.toString());
                //exporterXls.setParameter(JRExporterParameter.OUTPU