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獲取servlet初始化引數

package cn.itcast.web.servlet;

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

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

//通過servletCOnfig獲取servlet配置的初始化引數
//<init-param> public class ServletDemo4 extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ServletConfig config = this.getServletConfig(); //獲取配置的初始化引數的方式1 //String value = config.getInitParameter("charset");
Enumeration e = config.getInitParameterNames(); while(e.hasMoreElements()){ String name = (String) e.nextElement(); String value = config.getInitParameter(name); System.out.println(name + "=" + value); } } public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException { doGet(request, response); } }