Jasper生成PDF文件

 

1. public  class Print extends HttpServlet{
2.      private String filePatch;
3.      private String fileName;
4.     /***生成JapserPrint***
5.      * @throws Exception */
6.     private JasperPrint init(List<UserSocietyInsuranceReportBean> list,Map map) throws Exception{
7.         if(this.filePatch.equals(""))
8.             throw new Exception("没有设置路径！");
9.         JasperPrint print = null;
10.         /**** 编译成japser***/
11.         try{
12.             JasperCompileManager.compileReportToFile(this.getFilePatch()+getFileName()+".jrxml");
13.         }catch(Exception ex){
14.             ex.printStackTrace();
15.             throw new Exception("编译成Jasper失败",ex);
16.         }
17.         /**编译成JaperPrint**/
18.         try{
19.             print = JasperFillManager.fillReport(this.getFilePatch()+getFileName()+".jasper",map,new JRBeanCollectionDataSource(list));
20.             return print;
21.         }catch(Exception ex){
22.             ex.printStackTrace();
23.             throw new Exception("编译成JasperPrint失败",ex);
24.         }
25.         
26.     }
27.     
28.     /****显示成PDF格式*****/
29.     public void printPDF(HttpServletRequest request,HttpServletResponse response,List<UserSocietyInsuranceReportBean> list,Map map) throws Exception {
30.         OutputStream out = response.getOutputStream();
31.         response.setContentType("application/pdf");
32.     //  response.setHeader("Content-Disposition","attachment; filename="+fileName+".pdf");
33.         JRPdfExporter exporter = new JRPdfExporter();
34.         try{
35.         request.getSession().setAttribute(
36.                 BaseHttpServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE,init(list,map));
37.         List jasperPrintList = BaseHttpServlet
38.                 .getJasperPrintList(request);
39.         exporter.setParameter(JRExporterParameter.JASPER_PRINT_LIST,
40.                 jasperPrintList);
41.         exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, out);
42.         exporter.exportReport();
43.         }catch(Exception  ex){
44.             ex.printStackTrace();
45.         }
46.         finally{
47.             if(out!=null)
48.                 out.close();
49.         }
50.     }
52.     public String getFilePatch() {
53.         return filePatch;
54.     }
55.     public void setFilePatch(String filePatch) {
56.         this.filePatch = filePatch;
57.     }
59.     public String getFileName() {
60.         return fileName;
61.     }
63.     public void setFileName(String fileName) {
64.         this.fileName = fileName;
65.     }
66.     
67. }