源码获取：博客首页 "资源" 里下载！

一、项目运行

环境配置：

Jdk1.8 + Tomcat8.5 + mysql + Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）

项目技术：

Jdbc+ Servlert + html+ css + JavaScript + JQuery + Ajax +等等

 

 

 

 

 

管理员登陆控制层：

public class adminAction implements ModelDriven{
	admin admin = null;
	public String login() {
		DBManager dbManager = new DBManager();
		String sql= "select * from admin where username = '"+admin.getUsername()+"' and password = '"+admin.getPassword()+"'";
		ResultSet resultSet = dbManager.executeQuery(sql);
		try {
			if (resultSet.next()) {
			System.out.println("登陆成功");
			ActionContext.getContext().getSession().put("admin", admin);
			return "success";
		}else {
			ActionContext.getContext().getSession().put("message", "登录失败");
			return "failed";
		}
		} catch (Exception e) {
			e.printStackTrace();
			ActionContext.getContext().getSession().put("message", "登录失败");
			// TODO: handle exception
		}finally{
			dbManager.closeConnection();
		}
		
		return "failed";
	}

	@Override
	public Object getModel() {
		// TODO Auto-generated method stub
		if (admin == null) {
			admin = new admin();
		}
		return admin;
	}
}

抽奖控制层一二三等奖设置：

public class choujiangAction implements ModelDriven {
	private luck_dog luck_dog = null;

	@Override
	public Object getModel() {
		// TODO Auto-generated method stub
		if (luck_dog == null) {
			luck_dog = new luck_dog();
		}
		return luck_dog;
	}

	public void choujiang() {
		System.out.println(luck_dog.getLuck_num());
		DBManager dbManager = new DBManager();
		String sql = "select * from lucky_dog where luck_num = "
				+ luck_dog.getLuck_num();
		ResultSet resultSet = dbManager.executeQuery(sql);
		try {
			if (resultSet.next()) {
				System.out.println("这个号码已经中过奖！！！");
				String s = "{\"name\":\"提示\",\"age\":\"alreadyexisterror\"}";
				ServletActionContext.getResponse()
						.setCharacterEncoding("UTF-8");
				ServletActionContext.getResponse().getWriter().print(s);
				return;
			} else {
				int total = 0;
				int luck_group = 0;
				sql = "select count(*)as totalCount from lucky_dog";
				resultSet = dbManager.executeQuery(sql);
				if (resultSet.next()) {
					total = resultSet.getInt("totalCount");
				}// 得到抽奖表中的记录数
				if (total < 8) {
					luck_group = 3;// 三等奖8个
				} else if (total < 13) {
					luck_group = 2;// 二等奖5个
				} else if (total < 16) {
					luck_group = 1;// 一等奖3个
				} else {
					System.out.println("抽奖总数已满！！！");
					String s = "{\"name\":\"提示\",\"age\":\"totaloverflowerror\"}";
					ServletActionContext.getResponse().setCharacterEncoding(
							"UTF-8");
					ServletActionContext.getResponse().getWriter().print(s);
					return;
				}
				sql = "insert into lucky_dog (luck_num,luck_group)values("
						+ luck_dog.getLuck_num() + "," + luck_group + ")";
				boolean result = dbManager.insertSQL(sql);
				if (result) {
					String s = "{\"name\":\"提示\",\"age\":\"success\"}";
					ServletActionContext.getResponse().setCharacterEncoding(
							"UTF-8");
					ServletActionContext.getResponse().getWriter().print(s);
					System.out.println("抽奖数据已经写入数据库");
				} else {
					System.out.println("抽奖数据写入失败");
				}
			}
		} catch (Exception e) {
			// TODO: handle exception
		} finally {
			dbManager.closeConnection();

		}

	}

	public void view_result() {
		System.out.println("view_resultview_resultview_result");
		DBManager dbManager = new DBManager();
		String sql = "select * from lucky_dog";
		luck_dog luck_dog = null;
		ResultSet resultSet = dbManager.executeQuery(sql);
		List<luck_dog> luck_dogList = new ArrayList<luck_dog>();
		try {
			while (resultSet.next()) {
				luck_dog = new luck_dog();
				luck_dog.setId(resultSet.getInt("id"));
				luck_dog.setLuck_group(resultSet.getInt("luck_group"));
				luck_dog.setLuck_num(resultSet.getInt("luck_num"));
				luck_dogList.add(luck_dog);
			}
			JSONArray jsonArray = JSONArray.fromObject(luck_dogList);
			System.out.println(jsonArray);
			// String s = "{\"name\":\"提示\",\"age\":\"已提交抢答申请，请静候抢答结果！！！\"}";
			ServletActionContext.getResponse().setCharacterEncoding("UTF-8");
			ServletActionContext.getResponse().getWriter().print(jsonArray);
		} catch (Exception e) {
			// TODO: handle exception
			e.printStackTrace();
		} finally {
			dbManager.closeConnection();

		}

	}

}

抢答控制层:

public class qiangdaAction {

	public void start_qinagda() {
		DBManager dbManager = new DBManager();
		// 设置之前所有的抢答结束
		String sql = "update qiangda_group set is_end = 1 where 1=1";
		System.out.println(dbManager.executeUpdate(sql));
		sql = "insert into qiangda_group (create_time,started,is_end)values('"
				+ DateUtil.GetTime() + "',1,0)";
		//
		System.out.println(sql);
		dbManager.insertSQL(sql);
		// System.out.println(dbManager.insertSQL(sql));
		// long a = Calendar.getInstance().getTimeInMillis();
		// System.err.println(a);

		try {
			String s = "{\"name\":\"提示\",\"age\":\"新一轮抢答开始！！！\"}";

			ServletActionContext.getResponse().setCharacterEncoding("UTF-8");
			ServletActionContext.getResponse().getWriter().print(s);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			dbManager.closeConnection();

		}

	}

	public void qiangda() {
		DBManager dbManager = new DBManager();
		String sqlString = "select * from qiangda_group where is_end =0";
		System.err.println(sqlString);
		String ip = ServletActionContext.getRequest().getParameter("ip");
		System.out.println(ip);
		ResultSet resultSet = dbManager.executeQuery(sqlString);
		qiangda_group qiangda_group = null;
		try {
			if (resultSet.next()) {
				qiangda_group = new qiangda_group();
				qiangda_group.setCreate_time(resultSet.getDate("create_time"));
				qiangda_group.setGroup_id(resultSet.getInt("group_id"));
				qiangda_group.setIs_end(resultSet.getInt("is_end"));
				qiangda_group.setStarted(resultSet.getInt("started"));
				System.out.println(qiangda_group);
				// 插入新纪录之前要查询是否已经抢答过了
				String sql = "select * from qiangda where ip = '" + ip
						+ "' and group_id =" + qiangda_group.getGroup_id();
				resultSet = dbManager.executeQuery(sql);
				if (resultSet.next()) {
					System.out.println("本轮已经抢答过了！！！");
					String s = "{\"name\":\"提示\",\"age\":\"本轮已经抢答过了！！！\"}";
					ServletActionContext.getResponse().setCharacterEncoding(
							"UTF-8");
					ServletActionContext.getResponse().getWriter().print(s);
				} else {
					sql = "insert into qiangda (group_id,ip,qiangda_time)values ("
							+ qiangda_group.getGroup_id()
							+ ",'"
							+ ip
							+ "','"
							+ String.valueOf(Calendar.getInstance()
									.getTimeInMillis()) + "')";
					System.err.println(sql);
					dbManager.insertSQL(sql);
					System.out.println("抢答成功！！！");
					String s = "{\"name\":\"提示\",\"age\":\"已提交抢答申请，请静候抢答结果！！！\"}";
					ServletActionContext.getResponse().setCharacterEncoding("UTF-8");
					ServletActionContext.getResponse().getWriter().print(s);
				}
			}
		} catch (Exception e) {
			// TODO: handle exception
		} finally {
			dbManager.closeConnection();

		}

	}

	public void view_latest_result() {
		DBManager dbManager = new DBManager();
		String sqlString = "select max(group_id) as max_id from qiangda_group ";
		try {
			System.out.println(sqlString);
			ResultSet resultSet = dbManager.executeQuery(sqlString);
			if (resultSet.next()) {
				int max_id = resultSet.getInt("max_id");
				sqlString = "select * from qiangda where group_id = "+max_id+" order by qiangda_time";
				System.out.println(sqlString);
				resultSet = dbManager.executeQuery(sqlString);
				List<qiangda> qiangdaList = new ArrayList<qiangda>();
				qiangda qiangda = null;
				while (resultSet.next()) {
					qiangda = new qiangda();
					qiangda.setGroup_id(resultSet.getInt("group_id"));
					qiangda.setIp(resultSet.getString("ip"));
					qiangda.setQiangda_id(resultSet.getInt("qiangda_id"));
					qiangda.setQiangda_time( Long.parseLong(resultSet.getString("qiangda_time")));
					qiangdaList.add(qiangda);
					
				}
				JSONArray jsonArray = JSONArray.fromObject(qiangdaList);  
				
				ActionContext.getContext().getSession().put("qiangdaList", qiangdaList);
				System.out.println(jsonArray);
				//String s = "{\"name\":\"提示\",\"age\":\"已提交抢答申请，请静候抢答结果！！！\"}";
				ServletActionContext.getResponse().setCharacterEncoding("UTF-8");
				ServletActionContext.getResponse().getWriter().print(jsonArray);
				/*
				 [
				 {"qiangda_id":15,"group_id":56,"qiangda_time":1386253774144,"ip":"0:0:0:0:0:0:0:1"}
				 ,
				 {"qiangda_id":16,"group_id":56,"qiangda_time":1386253977924,"ip":"192.168.43.176"}
				 ,
				 {"qiangda_id":17,"group_id":56,"qiangda_time":1386253988012,"ip":"192.168.24.70"}
				 ]
				 * 
				 * {\"name\":\"提示\",\"age\":\"已提交抢答申请，请静候抢答结果！！！\"}
				 * */
			}
			
		} catch (Exception e) {
			// TODO: handle exception
			e.printStackTrace();
		} finally {
			dbManager.closeConnection();

		}

	}

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		qiangda qiangda = new qiangda ();
		qiangda.setGroup_id(1);
		qiangda.setIp("127.0.0.1");
		qiangda.setQiangda_id(12);
		qiangda.setQiangda_time((Long.getLong("1245792323546")));
		JSONArray jsonArray = JSONArray.fromObject(qiangda); 
		System.out.println(jsonArray);
	}

}

 源码获取：博客首页 "资源" 里下载！