java 网络文件下载(并命中文名)
public void download(HttpServletRequest request, HttpServletResponse response){//获取服务器文件
String file_url = "http//:www.baidu.com/201811239413.doc";
InputStream ins = null;
try {
ins = new URL(file_url).openStream();
/* 设置文件ContentType类型,这样设置,会自动判断下载文件类型 */
response.setContentType("multipart/form-data");
/* 设置文件头:最后一个参数是设置下载文件名 */
response.setHeader("Content-Disposition", "attachment;filename*=UTF-8''" + URLEncoder.encode("江苏南京.doc","UTF-8"));//适应中文名称
OutputStream os = response.getOutputStream();
byte[] b = new byte[1024];
int len;
while((len = ins.read(b)) > 0){
os.write(b,0,len);
}
os.flush();
os.close();
ins.close();
} catch (FileNotFoundException e) {
System.out.println("没有该文件");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
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