1.要生成pdf首先需要通过iReport生成pdf模板，详情自行百度。
2.生成pdf模板之后，将.jrxml和.jasper文件放在java项目的某个文件夹中。.jrxml文件是可编辑的文件，.jasper文件不可编辑。
3.最重要的部分来了，见下面：
-------------------------------------------------------------------------------------------------------------- @RequestMapping("print") @ResponseBody public void printFxt(Long tm_uuid, HttpServletRequest request, HttpServletResponse response) throws IOException{ //必须是map集合 Map<String, Object> parameters = this.carSeqMapper.selectFxt(tm_uuid); ServletOutputStream outPutStream = response.getOutputStream(); //注意.jasper的是相对路径，不是绝对路径 InputStream inputStream = request.getServletContext().getResourceAsStream("/template/cljcfxt.jasper"); parameters.put("pic1", "check.png"); parameters.put("pic2", "check.png"); parameters.put("pic3", "check.png"); parameters.put("pic4", "check.png"); parameters.put("contextPath", request.getServletContext().getRealPath("/")); //按条件选择复选框 String operType = (String) parameters.get("oper_type"); if("1".equals(operType)){ parameters.put("pic1", "checked.png"); } else if("2".equals(operType)){ parameters.put("pic2", "checked.png"); } JRDataSource jrDataSource = new JREmptyDataSource(); try { //生成网页pdf JasperRunManager.runReportToPdfStream(inputStream, outPutStream, parameters, jrDataSource); response.setContentType("application/pdf"); } catch (Exception e) { e.printStackTrace(); response.setContentType("text/plain; charset=utf-8"); response.setCharacterEncoding("utf-8"); outPutStream.write("生成pdf文件时,服务器发生异常".getBytes("utf-8")); } finally{ if(outPutStream != null){ outPutStream.flush(); outPutStream.close(); } } } ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------4.jrxml文件里面的变量属性要跟map集合里面的key值相对应，要修改jrxml直接在ireport里面修改，编译之后再放到java项目里面去覆盖之前的文件。
5.pom.xml文件中引入以下内容：
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <dependency> <groupId>feiliks.hn</groupId> <artifactId>jasperreports</artifactId> <version>6.4.1</version> </dependency> <dependency> <groupId>com.lowagie</groupId> <artifactId>itext</artifactId> <version>2.1.7</version> <scope>compile</scope> <exclusions> <exclusion> <groupId>org.bouncycastle</groupId> <artifactId>bcmail-jdk14</artifactId> </exclusion> <exclusion> <groupId>org.bouncycastle</groupId> <artifactId>bcprov-jdk14</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>feiliks.hn</groupId> <artifactId>feiliks-font</artifactId> <version>1.0.1</version> </dependency> <dependency> <groupId>commons-digester</groupId> <artifactId>commons-digester</artifactId> <version>2.1</version> </dependency> <dependency> <groupId>org.codehaus.groovy</groupId> <artifactId>groovy-all</artifactId> <version>2.4.5</version> </dependency> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------6.页面跳转要跳到一个新的页面，即<a>标签里面设置target="_blank"。
7.页面pdf自带打印功能，OK了，一个动态生成PDF的功能就实现了。
