WEB——Servlet介紹

AServlet.java

package cn.wonders.a_hello;

import java.io.IOException;

import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class AServlet implements Servlet{

    public void init(ServletConfig config) throws ServletException {
        System.out.println("Aservlet 被調用了初始化 init！");
    }

    public void service(ServletRequest req, ServletResponse res)
            throws ServletException, IOException {
        System.out.println("Aservlet接受到了請求！");
        res.getWriter().write("Hello world!");
    }

public void destroy() {
    System.out.println("Aservlet 被調用了destory方法！");
    }

    public ServletConfig getServletConfig() {
        return null;
    }

    public String getServletInfo() {
        return null;
    }

}

web.xml

輸出結果:

關閉服務器以後：