easyUI的树怎么搞，求指教

这个是我JS的代码。
我在这里面访问了我的控制器，可是控制器返回的却是一个页面。-。-我明明就只是想返回一个树的list集合

<%@ page language="java" pageEncoding="UTF-8"

	contentType="text/html; charset=UTF-8"%>

<script type="text/javascript">

	$(function() {



		$('#layout_west_tree').tree({

			url : '${pageContext.request.contextPath}/mc/more.do',

			parentField : 'pid',

			lines : true,

		});



	});

</script>

<div class="easyui-accordion" data-options="fit:true,border:false">

	<div title="系统菜单"

		data-options="isonCls:'icon-save',tools : [ {

				iconCls : 'icon-reload',

				handler : function() {

					$('#layout_west_tree').tree('reload');

				}

			}, {

				iconCls : 'icon-redo',

				handler : function() {

					var node = $('#layout_west_tree').tree('getSelected');

					if (node) {

						$('#layout_west_tree').tree('expandAll', node.target);

					} else {

						$('#layout_west_tree').tree('expandAll');

					}

				}

			}, {

				iconCls : 'icon-undo',

				handler : function() {

					var node = $('#layout_west_tree').tree('getSelected');

					if (node) {

						$('#layout_west_tree').tree('collapseAll', node.target);

					} else {

						$('#layout_west_tree').tree('collapseAll');

					}

				}

			} ]">

		<ul id="layout_west_tree"></ul>

	</div>package contro;

import java.util.ArrayList;

import java.util.List;

import model.person;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;



@Controller

@RequestMapping("/mc")

public class MenuContro{



	@RequestMapping("/more")

	public List<person> more(){

		person p=new person(1, "name_1", 0);

		person p1=new person(2, "name_1.1", 1);

		person p2=new person(3, "name_1.2", 1);

		List<person> list=new ArrayList<person>();

		list.add(p);

		list.add(p1);

		list.add(p2);

		if(list!=null){

			System.out.print("yes");

			return list;

		}

		return null;

	}

	public static void main(String arg[]){

		MenuContro m=new MenuContro();

		System.out.print(m.more());

	}

}



</div>