Ext 根据数据库返回json动态生成grid列表

来源：互联网发布：mac pro retina 编辑：程序博客网时间：2024/05/02 02:26

完整代码下载地址http://download.csdn.net/detail/woshishui6501/5306500

代码就不贴了核心就是要自己拼凑个json格式

package com.pbc.action;import java.io.PrintWriter;import java.util.List;import javax.servlet.http.HttpServletResponse;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;import com.pbc.bean.V9News;import com.pbc.service.Grid_Service;public class Grid_Action extends ActionSupport {public String Grid_All() {try{Grid_Service grid_service=new Grid_Service();List vdata=grid_service.get_data();int tCount=vdata.size();JSONObject jsonContext = new JSONObject();jsonContext.put("totalCount", 22);JSONArray context = new JSONArray();if(tCount!=0){for(int i=0;i<tCount;i++){V9News v9News=(V9News)vdata.get(i);JSONObject cell = new JSONObject();cell.put("id",1);cell.put("title",v9News.getDescription());context.add(cell);}}jsonContext.put("results", context);HttpServletResponse response=ServletActionContext.getResponse();response.setContentType("text/json; charset=gbk");response.setCharacterEncoding("gbk");PrintWriter printWriter=response.getWriter();printWriter.write(jsonContext.toString());}catch(Exception e){e.printStackTrace();return null;}return null;}}