tomcat环境下配置并创建一个servlet小程序

第一个Servlet服务端小程序程序 1，在webapps里创建一个文件夹myweb，作为你的网站根目录

在myweb中创建一个目录WEB-INF

在WEB-INF中创建一个classes目录

在WEB-INF中创建一个web.xml 可参照下图创建目录： 2,在web.xml中配置servlet

<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>
    <servlet-name>Servlet1</servlet-name>
    <servlet-class>ServletDemo</servlet-class>  
  </servlet>
  <servlet-mapping>
    <servlet-name>Servlet1</servlet-name>
    <url-pattern>/Servlet1</url-pattern>
  </servlet-mapping>
</web-app>

3.在classes目录中创建servlet程序

ServletDemo.java
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 ServletDemo extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out.println("hello word!!");
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}
}

4.通过：127.0.01:8080/myweb/Servlet1,这样我们第一个servlet小程序hello word就成功了