Servlet3.0 servlet注解

web.xml配置信息的注解

package com.javaweb.servlet3;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(value="/someServlet",//url-pattern
			name="some-Servlet",//servlet-name
			initParams={@WebInitParam(name="company",value="欧皇"),//初始化参数 
						@WebInitParam(name="student",value="卢本伟")
						},
			loadOnStartup=2//servlet启动顺序，0的优先级最高
			
		)
public class SomeServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();
		String servletName = this.getServletName();
		out.write(servletName+"<br>");
		Enumeration<String> names = this.getInitParameterNames();
		while(names.hasMoreElements()){
			String name = names.nextElement();
			String value = this.getInitParameter(name);
			out.write(name+"="+value+"<br>");
		}
		
	}

}