使用GenericServlet实例



package com.kettas.servlet;

import javax.servlet.* ;

import java.io.* ;

public class GenDateServlet extends GenericServlet{

    @Override

    public void service( ServletRequest request , ServletResponse response )

        throws ServletException ,IOException

    {             response.setContentType( "text/html" ) ; // 设置响应内容类型

             PrintWriter out = response.getWriter();// 获得文本写入流

             // 给客户端回应的html文本

             out.println( "<html>" ) ;

             out.println( "<body>" ) ;

             out.println( "<h1>Hello Servlet ！</h1>" );

             out.println( "</body>" ) ;

             out.println( "</html>" ) ;

             out.flush();// 刷新写入

    }

}

配置文件web.xml如下：



<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"

   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"

   version="2.5">

    // Servlet文件路径

    <servlet>

        <servlet-name>query</servlet-name>

        <servlet-class>com.kettas.servlet.GenDateServlet</servlet-class>

    </servlet>

    // 指定映射，说明在浏览器中输入".../query"则对应当前Servlet

    <servlet-mapping>

        <servlet-name>query</servlet-name>

        <url-pattern>/query</url-pattern>

    </servlet-mapping>

</web-app>