解析spring boot与ireport 整合问题

pom 文件依赖

  
            net.sf.jasperreports
            jasperreports
            6.10.0
        
        
            org.codehaus.groovy
            groovy-all
            2.4.11
        
        
        
        
            cn.lesper
            iTextAsian
            3.0
        

controller

 @GetMapping("/preview")
    public void print(HttpServletResponse response) throws Exception {
        List> data = getMaps();
        JRDataSource dataSource = new JRBeanCollectionDataSource(data);
        File file = ResourceUtils.getFile("classpath:jaspertemplate/abc.jrxml");
        response.setCharacterEncoding("utf-8");
        response.setContentType("application/pdf");
        response.setHeader("content-disposition", "attachment;filename=" + URLEncoder.encode("test", "UTF-8") + ".pdf");

        try (OutputStream outputStream = response.getOutputStream()) {
            //编译jrxml
            JasperReport jasperReport = JasperCompileManager.compileReport(file.getPath());
            //渲染加载数据
            HashMap params = new HashMap<>();
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params, dataSource);
            JasperExportManager.exportReportToPdfStream(jasperPrint, outputStream);
        } catch (IOException | JRException e) {
            e.printStackTrace();
        }
    }
  private List> getMaps() {
        List> data = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            Map m = new HashMap<>(3);
            m.put("id", "id" + i);
            m.put("name", "测试" + i);
            m.put("price", "price" + i);
            m.put("volTitle", "测试" + i);
            data.add(m);
        }
        return data;
    }

abc.jrxml 文件

path:src/main/resources/jaspertemplate

其他

本文不涉及有关ireport报表如何设计问题，有需要请自行查询 Y(_)Y

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