Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.rdsic.pileconstructionmanagement.test; import com.rdsic.pcm.common.GenericHql; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.apache.commons.lang3.StringUtils; import org.json.JSONObject; /** * * @author langl */ public class Test { public static void main(String[] args) { String sql = "select * from user"; List<Map<String, Object>> list = (ArrayList) GenericHql.INSTANCE.querySQL(sql, 20); if (!list.isEmpty()) { System.out.println("cnt:" + list.size()); JSONObject r = new JSONObject(); r.put("items", list); System.out.println(r.toString()); list.stream().map((item) -> { System.out.println("RECORD"); return item; }).forEach((item) -> { for (String k : item.keySet()) { JSONObject j = new JSONObject(item); System.out.println(j.toString()); System.out.println(StringUtils.rightPad(k, 20, " ") + item.get(k).toString()); } }); } System.exit(0); } }