request请求获取参数的实现方法(post和get两种方式)

package request萩箔資函Post賜宀get歌方;
　　import java.io.IOException;
　　import java.util.Arrays;
　　import java.util.Enumeration;
　　import java.util.Iterator;
　　import java.util.Map;
　　import javax.servlet.ServletException;
　　import javax.servlet.annotation.WebServlet;
　　import javax.servlet.http.HttpServlet;
　　import javax.servlet.http.HttpServletRequest;
　　import javax.servlet.http.HttpServletResponse;
　　@WebServlet("/AAServlet")
　　public class AAServlet extends HttpServlet {
　　private static final long serialVersionUID=1L;
　　protected void doGet(HttpServletRequest request,
　　HttpServletResponse response) throws ServletException, IOException {
　　System.out.println("get:"+request.getParameter("xxx"));
　　System.out.println("get:"+request.getParameter("yyy"));
　　}
　　protected void doPost(HttpServletRequest request,
　　HttpServletResponse response) throws ServletException, IOException {
　　request.setCharacterEncoding("utf-8");
　　response.setContentType("text/html;charset=utf-8");
　　String username=request.getParameter("username");
　　String password=request.getParameter("password");
　　String[] hobby=request.getParameterValues("hobby");
　　System.out.println(username+","+password+","+Arrays.toString(hobby));
　　Enumeration> names2=request.getParameterNames();
　　while(names2.hasMoreElements()){
　　System.out.println(names2.nextElement());
　　}
　　// Iterator
    
      names=(Iterator
     
      ) request.getParameterNames();
     
    
　　// while(names.hasNext()){
　　// System.out.println(names.next());
　　// }
　　Map
    
      map=(Map
     
      )request.getParameterMap();
     
    
　　for(String name:map.keySet()){
　　String[] values=map.get(name);
　　System.out.println(name+"="+Arrays.toString(values));
　　}
　　}
　　}