SpringWebFlux:FileNotFoundException在我的JAR中

Question

我是乌斯金·贾斯珀报道。在develop中，它工作得很好。但在编译jar时，系统会抛出“src/main/resources/reports/myJasperReport.jxml”的异常并将其FileNotFound

当我探索JAR时，我发现报告的URL是"/BOOT-INF/class/resport/myJasperReport.jxml"

我发现这个指向jar内文件的链接不可见，但并没有解决我的问题。

你能帮帮我吗？

@Slf4j
@Service
public class ReportService {
    private static final String REPORTS_BASE_PATH = "src/main/resources/reports/";

    public ByteArrayInputStream exportReport(
            String reportFileName,
            Integer idCC,
            Map<String,Object> parameters
    ) throws Exception {
        Connection connection = CustomEntityManagerFactoryPostgresImpl
                .getInstance()
                .getConnection(idCC);

        File file = ResourceUtils.getFile(REPORTS_BASE_PATH + reportFileName);
        JasperReport jasperReport = JasperCompileManager.compileReport(file.getAbsolutePath());
        JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, connection);

        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        JasperExportManager.exportReportToPdfStream(jasperPrint, outputStream);

        return new ByteArrayInputStream(outputStream.toByteArray());
    }
}

Answer 1

将classpath:前缀添加到路径中。并考虑<代码>资源< /COD>文件夹为根目录。

ResourceUtils.getFile("classpath:reports/" + reportFileName);

UPD：事实上，你根本不需要文件。尝试以流形式获取资源：

InputStream report = ReportService.class.getClassLoader().getResourceAsStream("reports/" + reportFileName);
JasperReport jasperReport = JasperCompileManager.compileReport(report);