写一个最简单的Servlet

哈希 — Fri, 29 Apr 2011 07:11:00 GMT

Web.xml

二话不说看代码：

xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
    xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <servlet>
    <description>This is the description of my J2EE componentdescription>
    <display-name>This is the display name of my J2EE componentdisplay-name>
    <servlet-name>ValidateViewservlet-name>
    <servlet-class>org.man.prj.ValidateViewservlet-class>
  servlet>

  <servlet-mapping>
    <servlet-name>ValidateViewservlet-name>
    <url-pattern>/ValidateViewurl-pattern>
  servlet-mapping>
  <welcome-file-list>
    <welcome-file>index.jspwelcome-file>
  welcome-file-list>
web-app>

package org.man.prj;

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

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class ValidateView extends HttpServlet {

    /**
     * The doGet method of the servlet.

     *
     * This method is called when a form has its tag value method equals to get.
     *
     * @param request the request send by the client to the server
     * @param response the response send by the server to the client
     * @throws ServletException if an error occurred
     * @throws IOException if an error occurred
     */
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        doPost(request, response);
    }

    /**
     * The doPost method of the servlet.

     *
     * This method is called when a form has its tag value method equals to post.
     *
     * @param request the request send by the client to the server
     * @param response the response send by the server to the client
     * @throws ServletException if an error occurred
     * @throws IOException if an error occurred
     */
    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println(""-//W3C//DTD HTML 4.01 Transitional//EN\">");
        out.println("");
        out.println("  A Servlet");
        out.println("  ");
        out.print("    This is ");
        out.print(this.getClass());
        out.println(", using the POST method");
        out.println("  ");
        out.println("");
        out.flush();
        out.close();
    }

}

输入tomcat验证一下：
http://localhost:8888/Validate/ValidateView

哈希 2011-04-29 15:11 发表评论

BlogJava-如何学好java-随笔分类-Servlet 总结

写一个最简单的Servlet