如何在没有xml配置的情况下使用JasperReportsPdfView

Question

我想有一个控制器方法从JasperReports jrxml文件返回PDF,而不使用任何xml配置.

我想用一个JasperReportsPdfView.这有可能吗？我知道只能在这个博客中使用Java代码来完成它:

http://krams915.blogspot.com/2010/12/spring-3-mvc-jasper-integration_22.html

但我相信一定可以用更少的代码:-)

这里是一些例子,代码并没有很遗憾工作.

@RequestMapping(value = "/test/pdfreport", method = RequestMethod.GET, produces = "application/pdf")
public JasperReportsPdfView getPdf() {

    // does not work like this, unfortunately
    final Person p = userService.getUserById("the id");

    final JasperReportsPdfView view = new JasperReportsPdfView();
    view.setReportDataKey("person");
    view.addStaticAttribute("person", p); // ??
    view.setUrl("report.jrxml");
    return view;
}

谢谢你的指针.

编辑:这是我的工作解决方案:

@Autowired 
private ApplicationContext appContext;

@RequestMapping(value = "/test/pdfreport", method = RequestMethod.GET, produces = "application/pdf")
public ModelAndView getPdf() {
    final List<Map<String, Object>> users = userService.getUsers();

    final JasperReportsPdfView view = new JasperReportsPdfView();
    view.setReportDataKey("users");
    view.setUrl("classpath:report.jrxml");
    view.setApplicationContext(appContext);

    final Map<String, Object> params = new HashMap<>();
    params.put("users", users);

    return new ModelAndView(view, params);
}

将spring-context-support包包含在项目中非常重要.

Answer 1

这对我有用:

@Autowired private ApplicationContext appContext;
@Autowired private DataSource dataSource;

@RequestMapping(value = "/pdf", method = RequestMethod.GET)
public ModelAndView getPdf() {
    JasperReportsPdfView view = new JasperReportsPdfView();
    view.setJdbcDataSource(dataSource);
    view.setUrl("classpath:report.jrxml");
    Map<String, Object> params = new HashMap<>();
    params.put("param1", "param1 value");
    view.setApplicationContext(appContext);
    return new ModelAndView(view, params);
}