data
       
     
      XXXXX
       
        
      
     
      data1
       
     
      YYYYY
       
        
      
     
      data2
       
     
      ZZZZZ
       
    

package cn.edu;import java.io.IOException;import java.io.PrintWriter;import java.util.Enumeration;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;//获取Web应用的初始化参数public class ServletDemo7 extends HttpServlet {	public void doGet(HttpServletRequest request, HttpServletResponse response)			throws ServletException, IOException {     		//单个输出全局初始化参数		String num=this.getServletContext().getInitParameter("data");		System.out.println(num);				//输出多个全局初始化参数		Enumeration e = this.getServletContext().getInitParameterNames();		while(e.hasMoreElements()){			String name=(String)e.nextElement();			String value1=this.getServletConfig().getInitParameter(name);			System.out.println(name+" = "+value1);		}		}	public void doPost(HttpServletRequest request, HttpServletResponse response)			throws ServletException, IOException {		doGet(request,response);	}}