springboot 集成ireport

要在Spring Boot中集成iReport，可以按照以下步骤进行操作：

1. 在pom.xml文件中添加iReport的依赖：

<dependency>
    <groupId>net.sf.jasperreports</groupId>
    <artifactId>jasperreports</artifactId>
    <version>6.17.0</version>
</dependency>

2. 在application.properties文件中添加iReport的配置：

jasper.report.compiler.classpath=/path/to/ireport/lib

3. 创建一个JasperReportsConfiguration bean：

@Bean
public JasperReportsConfiguration jasperReportsConfiguration() {
    DefaultJasperReportsContext context = DefaultJasperReportsContext.getInstance();
    JasperReportsConfiguration configuration = new JasperReportsConfiguration();
    configuration.setJasperReportsContext(context);
    return configuration;
}

4. 创建一个JasperReportsViewResolver bean：

@Bean
public JasperReportsViewResolver jasperReportsViewResolver() {
    JasperReportsViewResolver resolver = new JasperReportsViewResolver();
    resolver.setPrefix("classpath:/reports/");
    resolver.setSuffix(".jrxml");
    resolver.setReportDataKey("datasource");
    resolver.setViewNames("report_*");
    resolver.setViewClass(JasperReportsMultiFormatView.class);
    resolver.setOrder(0);
    return resolver;
}

5. 创建一个Controller来处理请求并返回JasperReportsView：

@Controller
public class ReportController {

    @Autowired
    private DataSource dataSource;

    @RequestMapping("/report")
    public ModelAndView report(ModelAndView modelAndView) {
        modelAndView.setViewName("report_pdf");
        modelAndView.addObject("datasource", dataSource);
        return modelAndView;
    }
}

6. 创建一个JasperReportsMultiFormatView bean：

@Bean
public JasperReportsMultiFormatView jasperReportsMultiFormatView() {
    JasperReportsMultiFormatView view = new JasperReportsMultiFormatView();
    view.setUrl("classpath:/reports/report.jrxml");
    view.setReportDataKey("datasource");
    view.setApplicationContext(applicationContext);
    return view;
}