前台和后台互相传递多维数组

$(function(){
    var array1 = new Array();
    array1.push("A");
    array1.push("B");
                
    var array2 = new Array();
    array2.push("123");
    array2.push("456");
            
    var allArray = new Array();
    allArray.push(array1);
    allArray.push(array2);

    //将字符串数组转化为JSON数组
    var jsonArry = JSON.stringify(allArray);

    $.ajax({            
    　 type: "POST",
    　 url: "JsonServelet",
    　 dataType: "json",
       traditional: true,
       data: {
             array: jsonArry
    　 },                              
    　 success: function(data){
                             
    　 }
    });

}); 

package com.jason.json;

import java.io.IOException;
import java.util.ArrayList;

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

import net.sf.json.JSONArray;

public class JsonServelet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        
        String array = req.getParameter("array");
        
        Object[] object = getJsonToArray(array);
        
        Object data= object[0];
        
        Object[] dataArray = null;
        
        ArrayList<String> dataList = new ArrayList<String>();
        
        dataArray = getJsonToArray(data.toString());

        for(int i=0;i<dataArray.length;i++){            
            dataList.add(dataArray[i].toString());
        }
        
        for (int i = 0; i < dataList.size(); i++) {
            System.out.println("dataList = "+dataList.get(i));
        } 
    }
    
    /**
     * 从json数组中得到相应java数组
     * JSONArray下的toArray()方法的使用
     * @param data
     * @return
     */
     public static Object[] getJsonToArray(String data) {
         JSONArray jsonArray = JSONArray.fromObject(data);
         return jsonArray.toArray();
     }

}