extjs 与java 交互，怎么搞都连接不上啊，帮我看看啊

Question

[code="java"]
Ext.Ajax.request({
url : '/jlyw/notice/gd_notice!queryNoticeList.action', //连不上啊，这里
method : 'post',
async : false,
success : function(result,request) {
var msg = result.responseText;
alert("dwdwdw"); //没反应啊
Ext.get("gdnotice").dom.innerHTML = '

滚动公告：

'+msg+'

';
},
failure : function() {

    }
})

[/code]

[code="java"]
package com.jlyw.actions.notice;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import com.bestnet.base.action.BaseAction;
import com.jlyw.services.notice.noticeService;
import com.jlyw.vos.notice.noticeVo;

@SuppressWarnings("serial")
public class Gd_noticeAction extends BaseAction{
@Autowired
private noticeService service;

private noticeVo noticevo;

@SuppressWarnings("unchecked")
public void queryNoticeList() throws IOException, ParseException {
        List list = service.getFirstList();
        StringBuffer sb = new StringBuffer();
        noticeVo backnotice = null;
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        for (int i = 0; i < list.size(); i++) {
            backnotice = (noticeVo) list.get(i);
            sb.append("<li>");
            long dif = sdf.parse(sdf.format(new Date())).getTime() - sdf.parse(backnotice.getCreateTime()).getTime();
            if (dif/(1000*3600*24) > 7) {
                sb.append("<a href='../../adm/backnoticefirst!getById.action?id=" + backnotice.getId() + "' target='_blank'>" + "【" + backnotice.getNoticeType() + "】" + backnotice.getTitle() +  "</a>&nbsp;&nbsp;&nbsp;" + backnotice.getCreateTime().substring(0, 10));
            } else {
                sb.append("<a href='../../adm/backnoticefirst!getById.action?id=" + backnotice.getId() + "' target='_blank'>" + "【" + backnotice.getNoticeType() + "】" + backnotice.getTitle() +  "</a>&nbsp;&nbsp;&nbsp;"
                    + backnotice.getCreateTime().substring(0, 10) + "<img src='../../Images/new.gif'></img>");
            }
            sb.append("</li>");
        }
        write("<ui>" + sb.toString() + "</ui>");
    }

public noticeService getService() {
    return service;
}

public void setService(noticeService service) {
    this.service = service;
}

public noticeVo getNoticevo() {
    return noticevo;
}

public void setNoticevo(noticeVo noticevo) {
    this.noticevo = noticevo;
}

}

[/code]

Answer 1

出错也不是坏事，能知道更多框架的使用和实现。如果一开始什么都对了，可能对于为什么这么整合，哪里是关键点，都不会知道。