servlet 多選框 鍵值對 傳action 實例

  <form action="GetList" method="post">

  <input name="xx" type="checkbox" value="1"> 第一個<input name="x1" type="text"> <br>
  <input name="xx"  type="checkbox" value="2"> 第二個<input name="x2" type="text"><br>
  <input name="xx" type="checkbox" value="3"> 第三個<input name="x3" type="text"><br>
  <input name="xx" type="checkbox" value="4"> 第四個<input name="x4" type="text"><br>
  <input name="submit1" type="submit" value="提交">
  </form>

package com.jr.action;

import java.io.IOException;

import java.util.LinkedHashMap;


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

@SuppressWarnings("serial")
public class GetList extends HttpServlet {

    public GetList() {
        super();
    }

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

        response.setContentType("text/html");

        String[] s=request.getParameterValues("xx");
        LinkedHashMap<String, String> map=new LinkedHashMap<String, String>();
        for (int i = 0; i < s.length; i++) {
            String string =  s[i];
            if (request.getParameter("x"+string)!=null&&!request.getParameter("x"+string).trim().equals("")) {
                String value=request.getParameter("x"+string);
                map.put(string, value);
            }

        }

    }
    public void init() throws ServletException {
        // Put your code here
    }

}