我要评论 1 @requestmapping("/downloadxls")
2 public void downloadxls(httpservletrequest request, httpservletresponse response) { 5 string contextpath = request.getsession().getservletcontext().getrealpath(file.separator + "report");
6 string excelname = xxxxxxxxx;
7 string excelfullname = contextpath + file.separator + excelname + ".xls";
8 inputstream instream = null, fileinstream = null;
9 servletoutputstream outstream = null;
10 int byteread;
11 try {
12 fileinstream = new fileinputstream(excelfullname);
13 instream = new bufferedinputstream(fileinstream);
14 response.reset();
15 response.setcontenttype("application/octet-stream");
16 response.setheader("content-disposition", "attachment; filename=" + excelname + ".xls");
17 outstream = response.getoutputstream();
18 byte[] buffer = new byte[1024];
19 while ((byteread = instream.read(buffer)) != -1) {
20 outstream.write(buffer, 0, byteread);
21 }
22 response.flushbuffer();
23 fileinstream.close();
24 instream.close();
25 outstream.close();
26 } catch (exception e) {
27 logger.error(e);
28 }finally{
29 try {
30 if(fileinstream!=null){
31 fileinstream.close();
32 }
33 if(instream!=null){
34 instream.close();
35 }
36 if(outstream!=null){
37 outstream.close();
38 }
39 } catch (ioexception e2) {
40 logger.error(e2);
41 }
42 }
43 }
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第一章 第八小节Duilib的绘制基础类CRenderEngine和CRenderClip
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