java - JasperReports 类路径

Question

我想将 .jrxml 文件包含在我的 NetBeans swing 项目中。我使用 NetBeans 7.0.1。我在源包内创建了一个名为“rep”的包，并创建了一个名为“rp.jrxml”的简单 .jrxml 文件。我已在 NetBeans 中安装了 iReport 插件。当我设置外部 .jrxml 文件时，它会显示(“D:/MyReports/firstreport.jrxml”)，但当我设置 NetBeans 包路径时，它不会显示。这是我的代码。

try {
       String reportSource="/rep/rp.jrxml";  //and also "rep/rp.jrxml" is used.no result.            
        Map<String, Object> params = new HashMap<String, Object>();
        JasperReport jasperReport = JasperCompileManager.compileReport(reportSource);
        JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params, new JREmptyDataSource());
        JasperViewer.viewReport(jasperPrint, false);
    } catch (Exception e) {e.printStackTrace();
    }

然后报如下错误；

net.sf.jasperreports.engine.JRException: java.io.FileNotFoundException: rep\rp.jrxml (The system cannot find the path specified)

如何将 jrxml 文件保留在我的 NetBeans 项目中并在项目中使用 jrxml 文件？

Answer 1

这段代码对我有用:

public class TestJasper {

    public static void main(String[] args) {
        try {
            String reportSource = "resources/report1.jrxml";
            Map<String, Object> params = new HashMap<String, Object>();
            JasperReport jasperReport = JasperCompileManager.compileReport(reportSource);
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params, new JREmptyDataSource());
            JasperViewer.viewReport(jasperPrint, false);
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }
}

我的项目结构:

build    classes        TestJasper.classdist nbprojectresources    report1.jrxml src    TestJasper.java 

UPDATED:
For solving net.sf.jasperreports.engine.JRException: No report compiler set for language : null problem you can try to set groovy report language and add groovy-all-jdk14 library to classpath.
You can get groovy library here.

The sample of report header with language set to groovy:

<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" 
... 
language="groovy" 
...>