package com.bank.study.controller;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloServlet extends HttpServlet {

    @Override
    protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
        response.setCharacterEncoding("utf-8");
        response.addHeader("Content-type", "text/html;charset=utf-8");
        PrintWriter pw  = response.getWriter();
        pw.println("你好 ，Servlet ....");
        pw.flush();
        pw.close();
        pw = null;
        
    }

    @Override
    public void destroy()
    {
        System.out.println("===== serlet destory() ====== ");
        super.destroy();
    }

    @Override
    public void init() throws ServletException
    {
        System.out.println("===== serlet init() ====== ");
        super.init();
    }

    @Override
    public void init(ServletConfig config) throws ServletException
    {
        System.out.println("===== serlet init(config) ====== ");
        String name = config.getInitParameter("name");
        System.out.println("name=" + name);
        super.init(config);
    }
    
}

JSP 学习总结 03 核心组件 Servlet