servlet使用入门

　　创建web工程servlet，然后新建TestServlet.java

package com.xmyself.servlet;

import java.io.IOException;

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

public class TestServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	public void init(ServletConfig config) throws ServletException {
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws IOException, ServletException {
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws IOException, ServletException {
		response.getWriter().write("test servlet");
	}

	public void destroy() {
	}
}

　　然后，修改web.xml

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	version="2.5">
	<display-name>servlet</display-name>

	<servlet>
		<servlet-name>test</servlet-name>
		<servlet-class>com.xmyself.servlet.TestServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>test</servlet-name>
		<url-pattern>/test</url-pattern>
	</servlet-mapping>
</web-app>

　　启动servlet工程，浏览器访问，出现“test servlet”

http://localhost:8080/servlet/test