servlet全局参数的设置

package com.fl.servlet;

import java.io.IOException;
import java.io.PrintWriter;

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

public class HttpServletDemo02 extends HttpServlet {
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
            System.out.println("dddd");
    }
    @Override
    public void init(ServletConfig config) throws ServletException {
        ServletContext sc = config.getServletContext(); //增加了这部分。
        String temp = sc.getInitParameter("kkkk");
        System.out.println(temp);
    }
}