response解决中文乱码问题:
实现中文文件下载(重点)
//更改response的码表,通知服务器用UTF-8码表去取response中的数据,然后写给客户机
response.setCharacterEncoding("UTF-8");
//通知浏览器以UTF-8码表打开回送的数据
//response.setHeader("content-type", "text/html;charset=UTF-8");
response.setContentType("text/html;charset=UTF-8");
String data = "中国";
PrintWriter writer = response.getWriter();
writer.write(data);
实现中文文件下载(重点)
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//1.获取需要下载的文件
String path = this.getServletContext().getRealPath("/download/日本妞.jpg");
String filename = path.substring(path.lastIndexOf("\\")+1);
//2.通知浏览器以下载方式打开 (下载的中文文件名必须要给过URL编码)
response.setHeader("content-disposition", "attachment;filename="+URLEncoder.encode(filename, "UTF-8"));
//3.向浏览器写出数据
//传输数据的模板代码
FileInputStream in = null;
try{
OutputStream out = response.getOutputStream();
in = new FileInputStream(path);
byte buffer[] = new byte[1024];
int len = 0;
while((len=in.read(buffer))>0){
out.write(buffer,0,len);
}
}finally{
if(in!=null){
in.close();
}
}
}