拖动一个barcode元素,属性设置如下
预览扫码
大功告成。
如果想传参,在Fields里添加barcode字段,点击codeExpression,双击barcode Fileld String 绿色部分自己出来,当然也可以手动写
预览里输入参数值123456789即可。
java调用时 parameter从java里传参,将@ireport5.6.0分组显示中java代码里,设置map.put("barcode","123456789");即可
@RequestMapping("/test") @ResponseBody public void test(HttpServletRequest req,HttpServletResponse res) throws Exception{ Map<String, Object> map = new HashMap<String, Object>(); map.put("barcode","123456789"); String realPath = ClassUtils.getDefaultClassLoader().getResource("").getPath();//项目根目录。该处是springboot方式 ServletContext context = req.getSession().getServletContext(); WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(context); DataSource dbSource = (DataSource) wac.getBean("dataSource"); // 配置文件里的beanid Connection conn = dbSource.getConnection(); byte[] bytes = JasperRunManager.runReportToPdf(realPath + "ireport/report1.jasper", map, conn); res.setContentType("application/pdf"); res.setContentLength(bytes.length); ServletOutputStream out = res.getOutputStream(); out.write(bytes, 0, bytes.length); out.flush(); out.close(); }