使用singe java bean生成jasper报告

Question

i have requirement to create order declaration report, i am using jasper studio to create the jasper template. in that template i have order id, customer details and his address, with these details i have to create a report.

i have below jasper report code

    JasperCompileManager.compileReportToFile("src/main/resource/orderDeclarationForm.jrxml");
    JasperPrint jasperPrint = JasperFillManager.fillReport("src/main/resource/orderDeclarationForm.jasper", new HashMap<String, Object>(), new JRTableModelDataSource(getTableModelData()));
    // JasperExportManager.exportReportToPdfFile("resource/orderDeclarationForm.jrprint");
    JasperExportManager.exportReportToPdfFile(jasperPrint, "src/main/resource/orderDeclarationForm.pdf");

but instead of JRTableModelDataSource i have to pass java bean class so the jasper engine has to take the data from one single java bean, i have gone through javabean as datasource where it takes list of beans, but my requirement is only one bean which has order details. please advice me on this

Answer 1

If you only need one instance of a bean to be passed to JasperFillManager.fillReport method, then it makes sense to pass them as parameters as long as their count is feasible (in your case its only 3).

    Map<String,Object> params = new HashMap<String,Object>();
    params.put("orderId", xxx);
    params.put("customerDetails", xxx);
    params.put("address", xxx);

Afterwards, pass this params Map object:

JasperPrint jasperPrint = JasperFillManager.fillReport("src/main/resource/orderDeclarationForm.jasper", params, new JRTableModelDataSource(getTableModelData()));

Please check this link for more info on how to read Parameters from within your .jrxml file.

Thanks.