struts2 文件下载类是很简单的,代码:
1 package test.filedown
2
3 import java.io.InputStream;
4 import com.forlink.wps.template.dao.TemplateJackrabbitDao;
5 import com.forlink.wps.template.dao.impl.TemplateJackrabbitDaoImpl;
6 import com.forlink.wps.template.dto.TemplateDTO;
7 import com.opensymphony.xwork2.ActionSupport;
8
9 public class FileDownloadAction extends ActionSupport
10 {
11
12 private String inputPath;
13
14 private String contentType;
15
16 private String filename;
17
18
19 public InputStream getInputStream() throws Exception
20 {
21 return ServletActionContext.getServletContext().getResourceAsStream(inputPath);
22
23 }
24
25 public String execute() throws Exception
26 {
27 inputPath="/image/close_w.gif";//要下载的文件名称
28 filename="test.gif"; //保存文件时的名称
29 contentType="image/gif";//保存文件的
30 return SUCCESS;
31 }
32
33
34 public String getContentType()
35 {
36 return contentType;
37 }
38
39 public void setContentType(String contentType)
40 {
41 this.contentType = contentType;
42 }
43
44 public String getFilename()
45 {
46 return filename;
47 }
48
49 public void setFilename(String filename)
50 {
51 this.filename = filename;
52 }
53 }
54
主要是在Action的配置上,配置文件如下:
<action name="filedownload"
class="test.filedown.FileDownloadAction">
<result name="success" type="stream">
<param name="contentType">${contentType}</param>
<param name="inputName">inputStream</param>
<param name="bufferSize">4096</param>
<param name="contentDisposition">filename="${filename}"</param>
<param name=""></param>
</result>
</action>