Question

我将一个List作为参数传递给Jasper，如下所示。

Map<String, Object> model=new HashMap<>();
  List<CustomObject> issues=new ArrayList<>();
            issues.add(new CustomObject(1,"AIRPORT Services","XYZ","asdfa","asdf","asddf"));
            issues.add(new CustomObject(1,"AIRPORT Services","XYZ","asdfa","asdf","asddf"));
            model.put("issues",issues);
            JasperPrint jasperPrint1 = JasperFillManager.fillReport(report, model, new JREmptyDataSource());

现在我能够在jasper中检索issuesList但我无法在CustomObject中检索值。

以下工作和打印参考使用以下

迭代的CustomObject

<textFieldExpression><![CDATA[$P{list}.get($V{ROW_INDEX})]]></textFieldExpression>

当我想访问Custom Object中的字段值（例如

）时抛出异常

<textFieldExpression><![CDATA[$P{list}.get($V{ROW_INDEX}).getCustomMethod()]]>

例外：

Exception obtained is: The method getCustomMethod() is undefined for the type Object value = ((java.util.List)parameter_list.getValue()).get(((java.lang.Integer)variable_ROW_INDEX.getValue())).getCustomMethod(); //$JR_EXPR_ID=0$

在Print an arraylist content with JasperReports迈克答案的帮助下我在碧玉中迭代了我的Arraylist。任何帮助高度赞赏。

Answer 1

当我从Object投射到CustomObject时，这对我有用遵循

<textFieldExpression><![CDATA[((com.custom.CustomObject)$P{flightIssues}.get($V{ROW_INDEX})).getCustomeMethod()]]></textFieldExpression>

Jasper报告在Arraylist中打印自定义对象

1 个答案: