认清现实，放弃幻想，准备斗争
一、借款人申请借款
1、需求描述
2、相关数据库表
lend：标的表
二、具体步骤
1、标的产生
管理员借款审核通过后，则产生新标的
2、查看标的列表
3、查看标的详情
生成新标的
一、后端实现
1、创建枚举
创建 LendStatusEnum
CHECK(0, "待发布"), INVEST_RUN(1, "募资中"), PAY_RUN(2, "还款中"), PAY_OK(3, "已结清"), FINISH(4, "结标"), CANCEL(-1, "已撤标"), ;
2、定义编号辅助类
service-core中添加辅助类：util.LendNoUtils
3、Service
BorrowInfoServiceImpl 实现：
@Resource private LendService lendService; @Transactional(rollbackFor = Exception.class) @Override public void approval(BorrowInfoApprovalVO borrowInfoApprovalVO) { //修改借款信息状态 ...... //审核通过则创建标的 if (borrowInfoApprovalVO.getStatus().intValue() == BorrowInfoStatusEnum.CHECK_OK.getStatus().intValue()) { //创建标的 lendService.createLend(borrowInfoApprovalVO, borrowInfo); } }
LendService 接口：
void createLend(BorrowInfoApprovalVO borrowInfoApprovalVO, BorrowInfo borrowInfo);
LendServiceImpl 实现：生成标的
@Override public void createLend(BorrowInfoApprovalVO borrowInfoApprovalVO, BorrowInfo borrowInfo) { Lend lend = new Lend(); lend.setUserId(borrowInfo.getUserId()); lend.setBorrowInfoId(borrowInfo.getId()); lend.setLendNo(LendNoUtils.getLendNo());//生成编号 lend.setTitle(borrowInfoApprovalVO.getTitle()); lend.setAmount(borrowInfo.getAmount()); lend.setPeriod(borrowInfo.getPeriod()); lend.setLendYearRate(borrowInfoApprovalVO.getLendYearRate().divide(new BigDecimal(100)));//从审批对象中获取 lend.setServiceRate(borrowInfoApprovalVO.getServiceRate().divide(new BigDecimal(100)));//从审批对象中获取 lend.setReturnMethod(borrowInfo.getReturnMethod()); lend.setLowestAmount(new BigDecimal(100)); lend.setInvestAmount(new BigDecimal(0)); lend.setInvestNum(0); lend.setPublishDate(LocalDateTime.now()); //起息日期 DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy-MM-dd"); LocalDate lendStartDate = LocalDate.parse(borrowInfoApprovalVO.getLendStartDate(), dtf); lend.setLendStartDate(lendStartDate); //结束日期 LocalDate lendEndDate = lendStartDate.plusMonths(borrowInfo.getPeriod()); lend.setLendEndDate(lendEndDate); lend.setLendInfo(borrowInfoApprovalVO.getLendInfo());//描述 //平台预期收益 // 月年化 = 年化 / 12 BigDecimal monthRate = lend.getServiceRate().divide(new BigDecimal(12), 8, BigDecimal.ROUND_DOWN); // 平台收益 = 标的金额 * 月年化 * 期数 BigDecimal expectAmount = lend.getAmount().multiply(monthRate).multiply(new BigDecimal(lend.getPeriod())); lend.setExpectAmount(expectAmount); //实际收益 lend.setRealAmount(new BigDecimal(0)); //状态 lend.setStatus(LendStatusEnum.INVEST_RUN.getStatus()); //审核时间 lend.setCheckTime(LocalDateTime.now()); //审核人 lend.setCheckAdminId(1L); baseMapper.insert(lend); }
由于这个项目没做管理员管理部分，用前端写死的管理员，即审核人的id是写死的
