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* Servlet实现之第一种方式实现Servlet

package com.bj.servlet;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.Servlet;

import javax.servlet.ServletConfig;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

public class Servlet_Hello implements Servlet{

/**

* Method init

* @param parm1

@throws ServletException

public void init(ServletConfig parm1) throws ServletException {

// TODO: Add your code here

System.out.println("init it");

}

/**

* Method getServletConfig

* @return

public ServletConfig getServletConfig() {

// TODO: Add your code here

return null;

}

/**

* Method service

*用于处理业务逻辑，把业务逻辑代码写在这里，当用户访问每一次都会调用该方法

* @param parm1

* @param parm2

*parm1用于获取客户端信息,param2用于向客户端返回信息

@throws ServletException

@throws IOException

public void service(ServletRequest parm1, ServletResponse parm2) throws ServletException, IOException {

// TODO: Add your code here

System.out.println("service it");

//param1中得到PrintWriter

PrintWriter pw=parm2.getWriter();

pw.println("hello world");

}

/**

* Method getServletInfo

* @return

public String getServletInfo() {

// TODO: Add your code here

return "";

}

/**

* Method destroy

*1、关闭tomcat；2、reload tomcat服务器3、关机

public void destroy() {

// TODO: Add your code here

System.out.println("destroy!");

}

JavaEE/Servlet_Hello.java at master · goder/JavaEE · GitHub

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