尚融宝29-提现和还款
2024-04-20 20:59:35
目录
一、提现
（一）需求
（二）前端
（三）后端
1、提现接口
2、回调接口
二、还款
（一）需求
（二）前端
（三）后端
1、还款接口
2、回调接口
一、提现
（一）需求
放款成功后，借款人可以申请提现。
参考《汇付宝商户账户技术文档》3.15用户申请提现
（二）前端
pages/user/withdraw.vue
<script>
export default {data() {return {fetchAmt: 0,}},methods: {commitWithdraw() {this.$alert('<div style="size: 18px;color: red;">您即将前往汇付宝提现</div>','前往汇付宝资金托管平台',{dangerouslyUseHTMLString: true,confirmButtonText: '立即前往',callback: (action) => {if (action === 'confirm') {this.$axios.$post('/api/core/userAccount/auth/commitWithdraw/' + this.fetchAmt).then((response) => {document.write(response.data.formStr)})}},})},},
}
</script>（三）后端
1、提现接口
UserAccountController
@ApiOperation("用户提现")
@PostMapping("/auth/commitWithdraw/{fetchAmt}")
public R commitWithdraw(@ApiParam(value = "金额", required = true)@PathVariable BigDecimal fetchAmt, HttpServletRequest request) {String token = request.getHeader("token");Long userId = JwtUtils.getUserId(token);String formStr = userAccountService.commitWithdraw(fetchAmt, userId);return R.ok().data("formStr", formStr);
}接口：UserAccountService
String commitWithdraw(BigDecimal fetchAmt, Long userId);实现：UserAccountServiceImpl
@Resource
private UserBindService userBindService;@Resource
private UserAccountService userAccountService;@Override
public String commitWithdraw(BigDecimal fetchAmt, Long userId) {//账户可用余额充足：当前用户的余额 >= 当前用户的提现金额BigDecimal amount = userAccountService.getAccount(userId);//获取当前用户的账户余额Assert.isTrue(amount.doubleValue() >= fetchAmt.doubleValue(),ResponseEnum.NOT_SUFFICIENT_FUNDS_ERROR);String bindCode = userBindService.getBindCodeByUserId(userId);Map<String, Object> paramMap = new HashMap<>();paramMap.put("agentId", HfbConst.AGENT_ID);paramMap.put("agentBillNo", LendNoUtils.getWithdrawNo());paramMap.put("bindCode", bindCode);paramMap.put("fetchAmt", fetchAmt);paramMap.put("feeAmt", new BigDecimal(0));paramMap.put("notifyUrl", HfbConst.WITHDRAW_NOTIFY_URL);paramMap.put("returnUrl", HfbConst.WITHDRAW_RETURN_URL);paramMap.put("timestamp", RequestHelper.getTimestamp());String sign = RequestHelper.getSign(paramMap);paramMap.put("sign", sign);//构建自动提交表单String formStr = FormHelper.buildForm(HfbConst.WITHDRAW_URL, paramMap);return formStr;
}2、回调接口
UserAccountController
@ApiOperation("用户提现异步回调")
@PostMapping("/notifyWithdraw")
public String notifyWithdraw(HttpServletRequest request) {Map<String, Object> paramMap = RequestHelper.switchMap(request.getParameterMap());log.info("提现异步回调：" + JSON.toJSONString(paramMap));//校验签名if(RequestHelper.isSignEquals(paramMap)) {//提现成功交易if("0001".equals(paramMap.get("resultCode"))) {userAccountService.notifyWithdraw(paramMap);} else {log.info("提现异步回调充值失败：" + JSON.toJSONString(paramMap));return "fail";}} else {log.info("提现异步回调签名错误：" + JSON.toJSONString(paramMap));return "fail";}return "success";
}接口：UserAccountService
void notifyWithdraw(Map<String, Object> paramMap);实现：UserAccountServiceImpl
@Transactional(rollbackFor = Exception.class)
@Override
public void notifyWithdraw(Map<String, Object> paramMap) {log.info("提现成功");String agentBillNo = (String)paramMap.get("agentBillNo");boolean result = transFlowService.isSaveTransFlow(agentBillNo);if(result){log.warn("幂等性返回");return;}String bindCode = (String)paramMap.get("bindCode");String fetchAmt = (String)paramMap.get("fetchAmt");//根据用户账户修改账户金额baseMapper.updateAccount(bindCode, new BigDecimal("-" + fetchAmt), new BigDecimal(0));//增加交易流水TransFlowBO transFlowBO = new TransFlowBO(agentBillNo,bindCode,new BigDecimal(fetchAmt),TransTypeEnum.WITHDRAW,"提现");transFlowService.saveTransFlow(transFlowBO);
}二、还款
（一）需求
放款成功后，会生成借款人的还款计划与出借人的回款计划，然后借款人按照还款计划日期操作还款即可。
参考《汇付宝商户账户技术文档》3.14还款扣款，处理业务即可
（二）前端
还款按钮pages/lend/_id.vue
<td><a href="javascript:" @click="commitReturn(lendReturn.id)">{{ lendReturn.status === 0 ? '还款' : '' }}</a>
</td>脚本pages/lend/_id.vue
commitReturn(lendReturnId) {this.$alert('<div style="size: 18px;color: red;">您即将前往汇付宝确认还款</div>','前往汇付宝资金托管平台',{dangerouslyUseHTMLString: true,confirmButtonText: '立即前往',callback: (action) => {if (action === 'confirm') {this.$axios.$post('/api/core/lendReturn/auth/commitReturn/' + lendReturnId).then((response) => {document.write(response.data.formStr)})}},})
}（三）后端
1、还款接口
LendReturnController
@ApiOperation("用户还款")
@PostMapping("/auth/commitReturn/{lendReturnId}")
public R commitReturn(@ApiParam(value = "还款计划id", required = true)@PathVariable Long lendReturnId, HttpServletRequest request) {String token = request.getHeader("token");Long userId = JwtUtils.getUserId(token);String formStr = lendReturnService.commitReturn(lendReturnId, userId);return R.ok().data("formStr", formStr);
}接口：LendReturnService
String commitReturn(Long lendReturnId, Long userId);实现：LendReturnServiceImpl
@Resource
private UserAccountService userAccountService;@Resource
private LendMapper lendMapper;@Resource
private UserBindService userBindService;@Resource
private LendItemReturnService lendItemReturnService;@Transactional(rollbackFor = Exception.class)
@Override
public String commitReturn(Long lendReturnId, Long userId) {//获取还款记录LendReturn lendReturn = baseMapper.selectById(lendReturnId);//判断账号余额是否充足BigDecimal amount = userAccountService.getAccount(userId);Assert.isTrue(amount.doubleValue() >= lendReturn.getTotal().doubleValue(),ResponseEnum.NOT_SUFFICIENT_FUNDS_ERROR);//获取借款人codeString bindCode = userBindService.getBindCodeByUserId(userId);//获取lendLong lendId = lendReturn.getLendId();Lend lend = lendMapper.selectById(lendId);Map<String, Object> paramMap = new HashMap<>();paramMap.put("agentId", HfbConst.AGENT_ID);//商户商品名称paramMap.put("agentGoodsName", lend.getTitle());//批次号paramMap.put("agentBatchNo",lendReturn.getReturnNo());//还款人绑定协议号paramMap.put("fromBindCode", bindCode);//还款总额paramMap.put("totalAmt", lendReturn.getTotal());paramMap.put("note", "");//还款明细List<Map<String, Object>> lendItemReturnDetailList = lendItemReturnService.addReturnDetail(lendReturnId);paramMap.put("data", JSONObject.toJSONString(lendItemReturnDetailList));paramMap.put("voteFeeAmt", new BigDecimal(0));paramMap.put("notifyUrl", HfbConst.BORROW_RETURN_NOTIFY_URL);paramMap.put("returnUrl", HfbConst.BORROW_RETURN_RETURN_URL);paramMap.put("timestamp", RequestHelper.getTimestamp());String sign = RequestHelper.getSign(paramMap);paramMap.put("sign", sign);//构建自动提交表单String formStr = FormHelper.buildForm(HfbConst.BORROW_RETURN_URL, paramMap);return formStr;
}还款明细service
根据还款id获取回款列表
LendReturnService接口：
List<Map<String, Object>> addReturnDetail(Long lendReturnId);LendReturnServiceImpl实现：
@Resource
private UserBindService userBindService;@Resource
private LendItemMapper lendItemMapper;@Resource
private LendMapper lendMapper;@Resource
private LendReturnMapper lendReturnMapper;/**
* 添加还款明细
* @param lendReturnId
*/
@Override
public List<Map<String, Object>> addReturnDetail(Long lendReturnId) {//获取还款记录LendReturn lendReturn = lendReturnMapper.selectById(lendReturnId);//获取标的信息Lend lend = lendMapper.selectById(lendReturn.getLendId());//根据还款id获取回款列表List<LendItemReturn> lendItemReturnList = this.selectLendItemReturnList(lendReturnId);List<Map<String, Object>> lendItemReturnDetailList = new ArrayList<>();for(LendItemReturn lendItemReturn : lendItemReturnList) {LendItem lendItem = lendItemMapper.selectById(lendItemReturn.getLendItemId());String bindCode = userBindService.getBindCodeByUserId(lendItem.getInvestUserId());Map<String, Object> map = new HashMap<>();//项目编号map.put("agentProjectCode", lend.getLendNo());//出借编号map.put("voteBillNo", lendItem.getLendItemNo());//收款人（出借人）map.put("toBindCode", bindCode);//还款金额map.put("transitAmt", lendItemReturn.getTotal());//还款本金map.put("baseAmt", lendItemReturn.getPrincipal());//还款利息map.put("benifitAmt", lendItemReturn.getInterest());//商户手续费map.put("feeAmt", new BigDecimal("0"));lendItemReturnDetailList.add(map);}return lendItemReturnDetailList;
}根据还款计划id获取对应的回款计划列表
接口：
List<LendItemReturn> selectLendItemReturnList(Long lendReturnId);实现：
@Override
public List<LendItemReturn> selectLendItemReturnList(Long lendReturnId) {QueryWrapper<LendItemReturn> queryWrapper = new QueryWrapper<>();queryWrapper.eq("lend_return_id", lendReturnId);List<LendItemReturn> lendItemReturnList = baseMapper.selectList(queryWrapper);return lendItemReturnList;
}2、回调接口
LendReturnController
@ApiOperation("还款异步回调")
@PostMapping("/notifyUrl")
public String notifyUrl(HttpServletRequest request) {Map<String, Object> paramMap = RequestHelper.switchMap(request.getParameterMap());log.info("还款异步回调：" + JSON.toJSONString(paramMap));//校验签名if(RequestHelper.isSignEquals(paramMap)) {if("0001".equals(paramMap.get("resultCode"))) {lendReturnService.notify(paramMap);} else {log.info("还款异步回调失败：" + JSON.toJSONString(paramMap));return "fail";}} else {log.info("还款异步回调签名错误：" + JSON.toJSONString(paramMap));return "fail";}return "success";
}接口：LendReturnService
void notify(Map<String, Object> paramMap);实现：LendReturnServiceImpl
@Resource
private TransFlowService transFlowService;@Resource
private UserAccountMapper userAccountMapper;@Resource
private LendItemReturnMapper lendItemReturnMapper;@Resource
private LendItemMapper lendItemMapper;@Transactional(rollbackFor = Exception.class)
@Override
public void notify(Map<String, Object> paramMap) {log.info("还款成功");//还款编号String agentBatchNo = (String)paramMap.get("agentBatchNo");boolean result = transFlowService.isSaveTransFlow(agentBatchNo);if(result){log.warn("幂等性返回");return;}//获取还款数据String voteFeeAmt = (String)paramMap.get("voteFeeAmt");QueryWrapper lendReturnQueryWrapper = new QueryWrapper<LendReturn>();lendReturnQueryWrapper.eq("return_no", agentBatchNo);LendReturn lendReturn = baseMapper.selectOne(lendReturnQueryWrapper);;//更新还款状态lendReturn.setStatus(1);lendReturn.setFee(new BigDecimal(voteFeeAmt));lendReturn.setRealReturnTime(LocalDateTime.now());baseMapper.updateById(lendReturn);//更新标的信息Lend lend = lendMapper.selectById(lendReturn.getLendId());//最后一次还款更新标的状态if(lendReturn.getLast()) {lend.setStatus(LendStatusEnum.PAY_OK.getStatus());lendMapper.updateById(lend);}//借款账号转出金额BigDecimal totalAmt = new BigDecimal((String)paramMap.get("totalAmt"));//还款金额String bindCode = userBindService.getBindCodeByUserId(lend.getUserId());userAccountMapper.updateAccount(bindCode, totalAmt.negate(), new BigDecimal(0));//借款人交易流水TransFlowBO transFlowBO = new TransFlowBO(agentBatchNo,bindCode,totalAmt,TransTypeEnum.RETURN_DOWN,"借款人还款扣减，项目编号：" + lend.getLendNo() + "，项目名称：" + lend.getTitle());transFlowService.saveTransFlow(transFlowBO);//获取回款明细List<LendItemReturn> lendItemReturnList = lendItemReturnService.selectLendItemReturnList(lendReturn.getId());lendItemReturnList.forEach(item -> {//更新回款状态item.setStatus(1);item.setRealReturnTime(LocalDateTime.now());lendItemReturnMapper.updateById(item);//更新出借信息LendItem lendItem = lendItemMapper.selectById(item.getLendItemId());lendItem.setRealAmount(item.getInterest());lendItemMapper.updateById(lendItem);//投资账号转入金额String investBindCode = userBindService.getBindCodeByUserId(item.getInvestUserId());userAccountMapper.updateAccount(investBindCode, item.getTotal(), new BigDecimal(0));//投资账号交易流水TransFlowBO investTransFlowBO = new TransFlowBO(LendNoUtils.getReturnItemNo(),investBindCode,item.getTotal(),TransTypeEnum.INVEST_BACK,"还款到账，项目编号：" + lend.getLendNo() + "，项目名称：" + lend.getTitle());transFlowService.saveTransFlow(investTransFlowBO);});
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