jquery datatable后台封装数据示例代码

public class DataTableReturnObject { private int iTotalRecords; private int iTotalDisplayRecords; private String sEcho; private String[][] aaData; public DataTableReturnObject(int totalRecords, int totalDisplayRecords, String echo, String[][] d) { this.setiTotalRecords(totalRecords); this.setiTotalDisplayRecords(totalDisplayRecords); this.setsEcho(echo); this.setAaData(d); } public void setiTotalRecords(int iTotalRecords) { this.iTotalRecords = iTotalRecords; } public int getiTotalRecords() { return iTotalRecords; } public void setiTotalDisplayRecords(int iTotalDisplayRecords) { this.iTotalDisplayRecords = iTotalDisplayRecords; } public int getiTotalDisplayRecords() { return iTotalDisplayRecords; } public void setsEcho(String sEcho) { this.sEcho = sEcho; } public String getsEcho() { return sEcho; } public void setAaData(String[][] aaData) { this.aaData = aaData; } public String[][] getAaData() { return aaData; } }

public class BaseController { protected JSONResponse successed(Object obj) { JSONResponse ret = new JSONResponse(); ret.setSuccessed(true); ret.setReturnObject(obj); return ret; } }

public JSONResponse searchList(HttpServletRequest request , HttpServletResponse response ,String sEcho) throws Exception { //convertToMap定义于父类，将参数数组中的所有元素加入一个HashMap Map<Object, Object> objQueryMap = new HashMap<Object, Object>(); String jsondata = request.getParameter("aoData"); JSONArray jsonarray = JSONArray.fromObject(jsondata); String strDisplayStart =""; String strDisplayLength=""; String[] arrayColumen = new String[new JSONUser().toArray().length]; int strSortId = 0; String strSort = ""; for(int i=0;i<jsonarray.size();i++) //从传递参数里面选出待用的参数 { JSONObject obj=(JSONObject)jsonarray.get(i); String strName = (String)obj.get("name"); String strValue = obj.get("value").toString(); if(strName.equals("sEcho")){ sEcho=strValue; } if(strName.equals("iDisplayStart")) { strDisplayStart=strValue; } if(strName.equals("iDisplayLength")) { strDisplayLength=strValue; } if(strName.equals("sColumns")){ arrayColumen = obj.get("value").toString().split(","); } if(strName.startsWith("iSortCol_")){ strSortId = Integer.parseInt(strValue) ;//排序列数 } if(strName.startsWith("sSortDir_")){ strSort = strValue;//排序的方向 "desc" 或者 "asc". } } Map<Object, Object> params = new HashMap<Object, Object>() ; try { params = managerService.getUserList(参数); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } String count = (String)params.get("COUNT");//总数 String[][] strData = (String[][])params.get("AO_DATA");//当前页显示的集合 return successed(new DataTableReturnObject(Integer.parseInt(count) , Integer.parseInt(count), sEcho, strData)); }

public Map<Object, Object> getUserList(Map<Object, Object> queryParams) throws Exception { String iCount = 总记录数; // 将查询结果转换为一个二维数组 String[][] data = {}; if (lstUser != null && lstUser.size() > 0) { int record = lstUser.size(); data = new String[record][]; for (int i = 0; i < lstUser.size(); i++) { User objUser = (User) lstUser.get(i); JSONUser jsonUser = new JSONUser(); BeanUtils.copyProperties(jsonUser, objUser); data[i] = jsonUser.toArray(); } } queryParams.clear();// 情况map,重新设值使用 queryParams.put("AO_DATA", data); queryParams.put("COUNT", iCount); return queryParams; }