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你的下载是一个超链接,你应该<a href="这里写你写下载操作的Action或其他控制下载的组件">下载</a>,你只能同过超链接跳到Action然后Action里面写一些东西,我这是用Struts写的你可以参考一下:
public ActionForward fileDownLoad(ActionMapping mapping,
HttpServletRequest request, HttpServletResponse response)
throws ServletException {
String fileName = null;// 名称
String realpath = "D:/crmSite/cdoc/";//定义路径
realpath = "D:/crmSite/cdoc/"
+ adform.getAdMat().substring(1);
realpath = StrUtils.replace(realpath, "\\", "/");
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
OutputStream fos = null;
InputStream fis = null;
fileName = realpath.substring(realpath.lastIndexOf("/") + 1, realpath.length());
//System.out.println(realpath);
try {
response.setContentType(this.getContentType(fileName));
response.setHeader("Content-disposition", "attachment;filename="
+ fileName);
fis = new FileInputStream(realpath);
bis = new BufferedInputStream(fis);
fos = response.getOutputStream();
bos = new BufferedOutputStream(fos);
int bytesRead = 0;
byte[] buffer = new byte[5 * 1024];
while ((bytesRead = bis.read(buffer)) != -1) {
bos.write(buffer, 0, bytesRead);// 将文件发送到客户端
}
bos.close();
bis.close();
fos.close();
fis.close();
} catch (IOException e) {
response.reset();
e.printStackTrace();
} finally {
try {
if (fos != null) {
fos.close();
}
if (bos != null) {
bos.close();
}
if (fis != null) {
fis.close();
}
if (bis != null) {
bis.close();
}
} catch (IOException e) {
System.err.print(e);
}
}
return null;
}
public ActionForward fileDownLoad(ActionMapping mapping,
HttpServletRequest request, HttpServletResponse response)
throws ServletException {
String fileName = null;// 名称
String realpath = "D:/crmSite/cdoc/";//定义路径
realpath = "D:/crmSite/cdoc/"
+ adform.getAdMat().substring(1);
realpath = StrUtils.replace(realpath, "\\", "/");
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
OutputStream fos = null;
InputStream fis = null;
fileName = realpath.substring(realpath.lastIndexOf("/") + 1, realpath.length());
//System.out.println(realpath);
try {
response.setContentType(this.getContentType(fileName));
response.setHeader("Content-disposition", "attachment;filename="
+ fileName);
fis = new FileInputStream(realpath);
bis = new BufferedInputStream(fis);
fos = response.getOutputStream();
bos = new BufferedOutputStream(fos);
int bytesRead = 0;
byte[] buffer = new byte[5 * 1024];
while ((bytesRead = bis.read(buffer)) != -1) {
bos.write(buffer, 0, bytesRead);// 将文件发送到客户端
}
bos.close();
bis.close();
fos.close();
fis.close();
} catch (IOException e) {
response.reset();
e.printStackTrace();
} finally {
try {
if (fos != null) {
fos.close();
}
if (bos != null) {
bos.close();
}
if (fis != null) {
fis.close();
}
if (bis != null) {
bis.close();
}
} catch (IOException e) {
System.err.print(e);
}
}
return null;
}
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