APP转盘抽奖Java服务端接口详解

APP转盘抽奖Java服务端接口详解

功能：奖品及中奖概率可在后台配置，滚动刷新中奖名单，控制用户每日抽奖次数等。

规则：在活动期间，每日可抽奖一次，中奖后填写个人信息以便奖品的配送。

1.获取抽奖页面数据

/**

* 获取抽奖页面数据

* @param request

* @param response

* @return

* @throws ServletException

* @throws IOException

*/

@RequestMapping(value="/queryLotteryActivity")

@ResponseBody

public AppIntReturn queryLotteryActivity(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

AppIntReturn res = new AppIntReturn();

// 用户同意授权后，能获取到code

String code = request.getParameter("code");

// 用户同意授权

if (!"authdeny".equals(code)) {

// 获取网页授权access_token

WeixinOauth2Token weixinOauth2Token = CommonUtil

.getOauth2AccessToken(ConfigUtil.APPID, ConfigUtil.APP_SECRECT, code);

// 用户标识

String openId = weixinOauth2Token.getOpenId();

if(!StringUtil.isEmpty(openId)){

// 查询用户信息

List memberList = appLotteryService.getMemberList(openId);

// 操作次数

int operNum = 1; // 可写成后台可配置的

if(memberList != null && memberList.size() > 0){

operNum = operNum - memberList.size();

/*// 获取用户信息

String accessToken = CommonUtil.getAccessToken(ConfigUtil.APPID, ConfigUtil.APP_SECRECT).getToken();

cxhWechatMember = CommonUtil.getWeChatMemberInfo(accessToken, openId);

// 保存用户信息

appLotteryService.saveMemberInfo(cxhWechatMember);*/

}

if (null == request.getParameter("activityId") || "".equals(request.getParameter("activityId"))){

res.setResult("-2");

res.setMsg("参数错误");

return res;

}

// 查询活动信息

CxhVoteActivity cxhVoteActivity = appLotteryService.getActivityInfo(request.getParameter("activityId"));

if (null == cxhVoteActivity){

res.setResult("-3");

res.setMsg("暂无该类活动");

return res;

}

CxhVoteAward cxhVoteAward = new CxhVoteAward();

cxhVoteAward.setCxhVoteActivity(cxhVoteActivity);

// 查询奖品列表

List awardList = appLotteryService.findAwardList(cxhVoteAward);

// 返回Map

Map rtnMap = new HashMap();

rtnMap.put("activity", cxhVoteActivity);

rtnMap.put("awardList", awardList);

rtnMap.put("operNum", operNum);

rtnMap.put("openId", openId);

res.setResult("0");

res.setMsg("请求成功");

res.setData(rtnMap);

}else{

res.setResult("-1");

res.setMsg("授权失败");

}

}else{

res.setResult("-1");

res.setMsg("授权失败");

}

return res;

}

2.中奖名单接口

/**

* 中奖名单接口

* @author lee

* @return

*/

@ResponseBody

@RequestMapping(value = "/winningMemberList")

public Object queryWinningMemberList(HttpServletRequest request, HttpServletResponse response) {

AppListReturn appResult = new AppListReturn();

try {

CxhWechatMember cxhWechatMember = new CxhWechatMember();

cxhWechatMember.setIswinning("1"); // 中奖

// 查询中奖用户名单（分页）

Page pageList = appLotteryService.findPage(new Page(request, response), cxhWechatMember);

appResult.setData(pageList.getList());

appResult.setPageNumber(pageList.getPageNo());

appResult.setPageSize(pageList.getPageSize());

appResult.setTotal((int) pageList.getCount());

appResult.setTotalPages(pageList.getTotalPage());

appResult.setResult(0);

appResult.setMsg("成功");

} catch (Exception e) {

appResult.setResult(-9);

appResult.setMsg("系统异常");

logger.info(e.toString(), e);

}

return appResult;

}

3.抽奖接口

/**

* 抽奖接口

* @author lee

* @return

*/

@ResponseBody

@RequestMapping(value = "/doLottery")

public Object doLottery(HttpServletRequest request, HttpServletResponse response) {

AppListReturn appResult = new AppListReturn();

// 返回Map

Map rtnMap = new HashMap();

String activityId = request.getParameter("activityId");

String openId = request.getParameter("openId");

try {

if (null == activityId || "".equals(activityId) || null == openId || "".equals(openId)){

appResult.setResult(-2);

appResult.setMsg("参数错误");

return appResult;

}

// 查询活动信息

CxhVoteActivity cxhVoteActivity = appLotteryService.getActivityInfo(request.getParameter("activityId"));

if (null == cxhVoteActivity){

appResult.setResult(-3);

appResult.setMsg("暂无该类活动");

return appResult;

}

CxhVoteAward cxhVoteAward = new CxhVoteAward();

cxhVoteAward.setCxhVoteActivity(cxhVoteActivity);

// 查询奖品列表

List awardList = appLotteryService.findAwardList(cxhVoteAward);

Random rd = new Random();

double dd = rd.nextDouble();

double before = 0;

double end = 0;

cxhVoteAward.setLevel("5"); // 5-未中奖

// 计算中奖概率

for (int i = 0; i < awardList.size(); i++) {

if(i > 0){

before += awardList.get(i-1).getRate().doubleValue();

}

end += awardList.get(i).getRate().doubleValue();

if(dd >= before && dd < end){

if(awardList.get(i).getLeftnum() > 0){

// 中奖奖品

cxhVoteAward = awardList.get(i);

// 修改奖品剩余数量

cxhVoteAward.setLeftnum(cxhVoteAward.getLeftnum() - 1);

appLotteryService.updateAwardNumber(cxhVoteAward);

}

break;

}

}

// 新增用户操作记录

String accessToken = CommonUtil.getAccessToken(ConfigUtil.APPID, ConfigUtil.APP_SECRECT).getToken();

CxhWechatMember cxhWechatMember = CommonUtil.getWeChatMemberInfo(accessToken, openId);

cxhWechatMember.setId(IdGen.uuid());

cxhWechatMember.setJoindate(new Date());

cxhWechatMember.setDelFlag("0");

// 保存用户信息

appLotteryService.saveMemberInfo(cxhWechatMember);

rtQMKounMap.put("awardLevel", cxhVoteAward.getLevel());

rtnMap.put("awardId", cxhVoteAward.getId());

appResult.setData(rtnMap);

appResult.setResult(0);

appResult.setMsg("成功");

} catch (Exception e) {

appResult.setResult(-9);

appResult.setMsg("系统异常");

logger.info(e.toString(), e);

}

return appResult;

}

4.保存中奖用户信息的接口

/**

* 保存中奖用户信息的接口

* @author lee

* @return

*/

@ResponseBody

@RequestMapping(value = "/saveMemberInfo")

public Object saveMemberInfo(HttpServletRequest request, HttpServletResponse response) {

AppListReturn appResult = new AppListReturn();

try {

// 用户同意授权后，能获取到code

String openId = request.getParameter("openId");

String username = request.getParameter("username");

String phone = request.getParameter("phone");

String address = request.getParameter("address");

String awardLevel = request.getParameter("awardLevel");

String awardId = request.getParameter("awardId");

if (null == username || "".equals(username)

|| null == phone || "".equals(phone)

|| null == address || "".equals(address)

|| null == openId || "".equals(openId)

|| null == awardLevel || "".equals(awardLevel)

|| null == awardId || "".equals(awardId)){

appResult.setResult(-2);

appResult.setMsg("参数错误");

return appResult;

}

// 查询用户信息

List memberList = appLotteryService.getMemberList(openId);

CxhWechatMember cxhWechatMember = memberList.get(0);

cxhWechatMember.setUsername(username);

cxhWechatMember.setPhone(phone);

cxhWechatMember.setAddress(address);

cxhWechatMember.setIswinning(awardLevel == "5" ? "0QMKou" : "1");

cxhWechatMember.setAwardid(awardId);

appLotteryService.update(cxhWechatMember);

appResult.setResult(0);

appResult.setMsg("成功");

} catch (Exception e) {

appResult.setResult(-9);

appResult.setMsg("系统异常");

logger.info(e.toString(), e);

}

return appResult;

}

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