iReport笔记-建立交叉表，使用JavaBean数据源

一、新建报表

选择使用空白模板，点击Open this Template

二、输入报表名称，点击下一步

三、点击完成，就新建了一个新的空白报表

四、删除多余的band，只保留summary，报表的内容全放到这里

五、新建parameter，用来接收数据，必定要记得修改参数类型


六、新建dataset，填好名称，点击下一步

七、新建数据源

点击save，而后点击下一步

八、点击下一步

九、点击完成，dataset建立完毕

十、在java项目中，新建Javabean，用来存数据

public class CategoryBean {
	private String id;
	private String series;
	private String category;
	private String value;
	
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getSeries() {
		return series;
	}
	public void setSeries(String series) {
		this.series = series;
	}
	public String getCategory() {
		return category;
	}
	public void setCategory(String category) {
		this.category = category;
	}
	public String getValue() {
		return value;
	}
	public void setValue(String value) {
		this.value = value;
	}
}

十一、将javabean打包成jar包，而且加入到iReport的classpath里
工具-选项-classpath-添加jar包


十二、edit query

1三、向报表中添加crosstab组件，选择刚才新建的数据源，点击下一步


1四、设置行数据，选择series

1五、设置列数据，选择category

1六、设置data，选择value字段，function选择nothing

1七、设置布局，去掉不须要的计算行列total的选项，点击完成

18，编辑交叉表数据，在添加好的crosstab上点右键-Crosstab data
注意选择合适的数据源类型和表达式

到这里组件的添加和设置就算完成了，表格的样式能够根据须要修改。
特别注意的是要注意勾选Data is pre-sorted，不然数据会从新排序。


1九、点击编译生成jasper文件供调用

20、新建java类，用来填充数据，调用刚才生成的jasper文件并导出想要的文件格式，好比pdf，excel等

public class TeamProductivity {
 public static void main(String[] args) {
 try {
 TeamProductivity report=new TeamProductivity();
 report.genReport();
 } catch (Exception e) {
 e.printStackTrace();
 } 
 }
 /**
 * @throws Exception 
     * @Method: genReport
     * @Author: Liaolz
     * @Description: 生成报表文件
     *
     * @param
     * @return void
     * @throws
     */
    public void genReport() throws Exception {
        System.out.println("=========开始生成报表=========");
        long startTime = System.currentTimeMillis();
        
        //准备报表数据
        List<CategoryBean> beanDataList = new ArrayList<CategoryBean>();
        Map<String, Object> parameters = new HashMap<String, Object>();
        setCrosstabData(beanDataList);
        //主数据源
        JRBeanCollectionDataSource ds = new JRBeanCollectionDataSource(beanDataList);
        //交叉表数据源
        JRBeanCollectionDataSource dsCrosstab = new JRBeanCollectionDataSource(beanDataList);
        parameters.put("beanData", dsCrosstab);
        //导出报表
        String jasperFileName="E:\\report\\ireport51\\teamProductivity.jasper";
        String exportFileName="e:\\export\\teamProductivity"+startTime;
        exportReportToExcel(parameters,ds,jasperFileName,exportFileName);
        System.out.println("=========生成报表完成，所需时间：" + ((System.currentTimeMillis() - startTime)/1000) + "秒=========");
    }
    private void setCrosstabData(List<CategoryBean> beanList){
     	 String[] series={"产出箱数","生产小时","成型次数","人头数","","次品合计","A","B","C","D"};
     	 String[] category={"早班","中班","备注"};
     	 String[][] value={{"730箱","891箱",""},
     			 			{"0","0",""},
     			 			{"78","78",""},
     	 				    {"0","0",""},
     	 				    {"","",""},
   	 				    {"0","0",""},
                             {"","","不规则"},
                             {"","","偏小"},
                             {"","",""},
                             {"","",""}};
     	 setBeanList(beanList,series,category,value);
     }
 private void setBeanList(List<CategoryBean> beanList,String[] series,String[] category,String[][] value){
                 int seriesLen=series.length;
                 int categoryLen=category.length;
                 for(int i=0;i<seriesLen;i++){
                 for(int j=0;j<categoryLen;j++){
         	CategoryBean dataCrosstab = new CategoryBean();
         	dataCrosstab.setSeries(series[i]);
         	dataCrosstab.setCategory(category[j]);
         	if(value[i][j]!=null){
         		dataCrosstab.setValue(value[i][j]);
         	}    	          
         	beanList.add(dataCrosstab);
 }
 }
 }
    private void exportReportToPDF(Map<String, Object> parameters,JRBeanCollectionDataSource ds,String jasperFileName,String exportFileName)throws Exception{
      //生成JasperPrint
      JasperReport report = (JasperReport)JRLoader.loadObject(new File(jasperFileName));
      JasperPrint jasperPrint = JasperFillManager.fillReport(report, parameters, ds);
      OutputStream ouputStream = new FileOutputStream(new File(exportFileName+".pdf")); 
      //使用JRPdfExproter导出器导出pdf
      JRPdfExporter exporter = new JRPdfExporter();
      
      //设置JasperPrintList
      exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);  
      exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, ouputStream);  
      exporter.exportReport();        
      ouputStream.close();    
    }
    private void exportReportToExcel(Map<String, Object> parameters,JRBeanCollectionDataSource ds,String jasperFileName,String exportFileName)throws Exception{
        JasperReport report=(JasperReport)JRLoader.loadObject(new File(jasperFileName));
        JasperPrint jasperPrint =JasperFillManager.fillReport(report,parameters, ds);
         FileOutputStream ouputStream = new FileOutputStream(exportFileName+".xls");
         JRAbstractExporter exporter = new JExcelApiExporter();
         exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
         exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, ouputStream);
         exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET,Boolean.FALSE);
         exporter.exportReport();
         ouputStream.close();  
      }
}

导出的excel截图

能够设置多个dataset，生成多个图表，以下所示