Servlet1.java

package com.sishuok.chapter2.web.servlet;

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;
import java.io.IOException;

/**
 * <p>User: Zhang Kaitao
 * <p>Date: 13-6-21 下午2:27
 * <p>Version: 1.0
 */
@WebServlet(name = "servlet1", urlPatterns = {"/s1", "/s1/*"}, loadOnStartup = 1,
        initParams = {
                @WebInitParam(name = "msg", value="hello world")
        })
public class Servlet1 extends HttpServlet {
    private String msg;

    public Servlet1() {
        System.out.println("load on startup");
    }

    @Override
    public void init() throws ServletException {
        super.init();
        msg = this.getInitParameter("msg");
    }

    @Override
    protected void doGet(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
        System.out.println(msg);
    }
}