步骤如下:
1. jdk已经下载,配置好了。这个属于java的基础知识,这里我就不介绍了,不了解的,自己找资料。
2.下载一个tomcat,建议到官网下。解压成文件夹。
3.在window->perferences->service->runtime environment如图:
4.新建一个web项目,特别是选择版本上最好选择2.5，刚开始我选择3.0的版本就无法访问页面。
5.新建一个servlet文件,内容如下:
package com.course1.servlet;
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;
/**
* Servlet implementation class FirstServlet
*/
public class FirstServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public FirstServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
out.println("<html><body><h1>欢迎 servlet and jsp!</h1>");
out.println("</body></html>");
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
this.doGet(request, response);
}
}
web.xml配置文件如下:
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <servlet> <servlet-name>First</servlet-name> <servlet-class>com.course1.servlet.FirstServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>First</servlet-name> <url-pattern>/FirstServlet</url-pattern> </servlet-mapping> </web-app>
6.给项目添加服务器:
在servers中添加服务器,然后选择你自己的项目,在点击右键，选择start选项
7.注意web.xml文件一定要写正确，不然会报错。
在http://localhost:8080/项目名/FirstServlet就可以了。
时间： 2024-10-05 20:18:05