servlet Context (在servlet 中设定context)

package servlet_demo03;

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

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 Servlet_Context extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = -4997823504444105170L;

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		doPost(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		//获取上下文对象
		ServletContext sc=this.getServletContext();
		sc.setAttribute("name", "zhangsan");
		
		PrintWriter out=resp.getWriter();
		out.print(sc.getInitParameter("version"));
		
	}

}

package servlet_demo03;

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

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 Servlet_Context02 extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 7562320935883704783L;

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		doPost(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		ServletContext sc=this.getServletContext();
		PrintWriter out=resp.getWriter();
		out.println(sc.getInitParameter("version"));
		out.print(sc.getAttribute("name"));
	}
	
}