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：
代码语言：javascript复制@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：
代码语言：javascript复制void createLend(BorrowInfoApprovalVO borrowInfoApprovalVO, BorrowInfo borrowInfo);LendServiceImpl 实现：生成标的
代码语言：javascript复制@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
