Question

用javascript 创建easyui datagrid 后台代码怎么写？

这是小弟写的代码

但是我想用这种方式写

求用红笔标出的.方法代码（ps：我也知道它是个json对象，或者是返回的json方法，但是我不知道该怎么写）
求代码
这是我后台源码





Answer 1

后台返回 datagrid_data.json ；
给个spring mvc 的例子供参考：
package zjgs.eai.controller;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import zjgs.comm.PageForDataGrid;
import zjgs.eai.command.QuerySpErrorCommand;
import zjgs.eai.service.EaiService;

import javax.servlet.http.HttpServletRequest;

@Controller
public class QuerySpErrorController {
protected final Log logger = LogFactory.getLog(getClass());
@Autowired
private EaiService eaiService;

public EaiService getEaiService() {
return eaiService;
}

//初始化 JSP 页面
@RequestMapping(value = "/eai/querySpError.htm", method = RequestMethod.GET)
public String initPage(HttpServletRequest request) {
request.setAttribute("querySpErrorCommand", new QuerySpErrorCommand());
return "eai/querySpError";
}

//查询---返回对应的信息
@RequestMapping(value = "/eai/querySpSpxxByNsrsbh.json", method = RequestMethod.POST)
public String getDataSetSpxx(@ModelAttribute("pojo") QuerySpErrorCommand querySpErrorCommand, ModelMap modelMap) {
PageForDataGrid pageForDataGrid = new PageForDataGrid(
this.getEaiService().getSpxxByXtsphm(querySpErrorCommand.getXtsphm()),
1,
100,
modelMap
);
pageForDataGrid.setDataGrid();
return "querySpSpxxByXtsphm.json";
}

//查询---返回数据逻辑错误的日志信息
@RequestMapping(value = "/eai/querySpError.json", method = RequestMethod.POST)
public String getDataSetErrorLog(@ModelAttribute("pojo") QuerySpErrorCommand querySpErrorCommand, ModelMap modelMap) {
PageForDataGrid pageForDataGrid = new PageForDataGrid(
this.getEaiService().getErrorLogByXtsphm(querySpErrorCommand.getXtsphm()),
1,
100,
modelMap
);
pageForDataGrid.setDataGrid();
return "querySpError.json";
}

}

追问

哥，这个例子不行，有别的吗，或者给我那个实例写个json方法