2019独角兽企业重金招聘Python工程师标准>>> 
package com.httpServletResponse;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//演示中文文件名下载
/*** Servlet implementation class ServletResponse2*/
@WebServlet("/ServletResponse2")
public class ServletResponse2 extends HttpServlet {private static final long serialVersionUID = 1L;/*** @see HttpServlet#HttpServlet()*/public ServletResponse2() {super();// TODO Auto-generated constructor stub}/*** @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)*/protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//获取文件的路径String path=getServletContext().getRealPath("/WEB-INF/classes/美女.jpg");//创建输入流InputStream is=new FileInputStream(path);byte[] bs=new byte[1024];int b=0;//创建输入流对象ServletOutputStream os=response.getOutputStream();//对中文进行编码,拿到文件的中文名String name=path.substring(path.lastIndexOf("\\")+1, path.length());System.out.println(name);//对中文文件名进行编码name=URLEncoder.encode(name, "utf-8");System.out.println("编码后："+name);//通知浏览器以以下方法打开文件response.setHeader("Content-Disposition", "attachment;filename="+name);while ((b=is.read(bs))!=-1) {os.write(bs, 0, b);}}/*** @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)*/protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {// TODO Auto-generated method stubdoGet(request, response);}
}
