Ireport的简单使用

创建一个ireport的模板

首先我们得创建一个模板,但是创建模板之前,我们得先了解下Ireport的各个部位是干嘛的?

然后创建一个简单的模板

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代码改动-在带你入门DEMO基础上

@ApiOperation("导出HelloPDF")
	@RequestMapping(value = "/exportPdf", method = RequestMethod.GET)
	public ResponseEntity<byte[]> exportPdf(HttpServletResponse response) throws Exception {
		// 读取文件流
		Resource resource = resolver.getResource("jasper/TestIreport.jasper");
		Map<String,Object> params=new HashMap<String,Object>();
		params.put("no", "BH20931239029");
		// 进行调用模板
		List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
		for (int i = 0; i < 200 ;i++) {
			Map<String, Object> map = new HashMap<String, Object>();
			map.put("id", i);
			map.put("name", "名字"+i);
			map.put("address", "地址"+i);
			list.add(map);
		}
		JasperPrint jasperPrint = JasperFillManager.fillReport(resource.getInputStream(), params,
				new JRBeanCollectionDataSource(list));
		byte[] body = jasperExportManager.exportToPdf(jasperPrint);
		HttpHeaders header=new HttpHeaders();
		header.setContentType((MediaType.parseMediaType("application/pdf")));
		header.add("Content-Disposition", "inline;filename=hello.pdf");
		return new ResponseEntity<byte[]>(body, header, HttpStatus.OK);
	}

效果如下