09-字符流和字节流

package com.yc.resp;

import com.example.servlet03Response.HelloServlet;

import javax.servlet.ServletException;

import javax.servlet.ServletOutputStream;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.IOException;

import java.io.PrintWriter;

@WebServlet("/ser01")

public class servlet01 extends HelloServlet {

    @Override

    protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        // getWriter() 字符 输出流 输出字符

//        PrintWriter writer = response.getWriter();

//        writer.write("hello");

        // 字节输出流  getOutputStream  输出一切数据

        ServletOutputStream out = response.getOutputStream();

        out.write("hi".getBytes());

    }

}