每日日报

今日学习代码

package gacl.servlet.study;

import java.io.IOException;
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 ServletContextDemo1 extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String data = "xdp_gacl";
/**
* ServletConfig对象中维护了ServletContext对象的引用，开发人员在编写servlet时，
* 可以通过ServletConfig.getServletContext方法获得ServletContext对象。
*/
ServletContext context = this.getServletConfig().getServletContext();//获得ServletContext对象
context.setAttribute("data", data); //将data存储到ServletContext对象中
}

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