问题描述
我正在使用基于 struts 的应用程序。我想创建一个Jasper报告，其中包含 Paper 对象的问题和答案。显然我有一个 Paper 列表，其中包含part属性，每个 Paper 对象内部有一个 问题列表 。此外，每个 问题 都有一个回复列表。
I'm working on a struts based application. I want to create a Jasper report containing questions and responses for a Paper Object. Clearly I have a List of Paper objects containing part attribute and each Paper object internally has a List of Questions. Also each Question has a List of Responses.
我可以创建主要报告使用Paper对象显示不同的部件名称。但我想显示与部件相关的问题以及与每个问题相关的响应。
I could create the main report with Paper object which displays different part names. But I want to display the questions associated with the part and responses associated with each question.
我的模型类将是：
// Paper
public class Paper {
public String partName;
public List<Question> questions;
}
// Question
public class Question {
public String question;
public List<Answer> answers;
}
// Answer
public class Answer {
public String answer;
}
我知道我必须在 iReport中使用子报告。当我这样做时，数据源表达式的编译失败 new JRBeanCollectionDataSource（$ F {questions}）
I know I have to use subreport in iReport. When i did so the compilation fails for the data source expression new JRBeanCollectionDataSource($F{questions})
推荐答案
new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource（$ F {questions}）
new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($F{questions})
这篇关于使用适用于JasperReports的iReport工具创建子报表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！