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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!");
}
}