gold-java/src/main/java/com/example/demo/controller/coin/RateController.java

package com.example.demo.controller.coin;


import com.example.demo.domain.entity.Rate;
import com.example.demo.domain.vo.coin.Page;
import com.example.demo.domain.vo.coin.Result;
import com.example.demo.service.coin.RateService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.ObjectUtils;
import org.springframework.web.bind.annotation.*;

import java.math.BigDecimal;
import java.util.Map;


@RestController
@RequestMapping("/rate")
@RequiredArgsConstructor
@Slf4j
@CrossOrigin
public class RateController {

    @Autowired
    private RateService rateService;

    //货币汇率列表
    @PostMapping("/selectAll")
    public Result selectAll(@RequestBody Page page){
        if (ObjectUtils.isEmpty(page.getPageNum())) {
            return Result.error("页码数为空！");
        }
        if (ObjectUtils.isEmpty(page.getPageSize())) {
            return Result.error("页大小为空！");
        } else {
            return Result.success(rateService.selectAll(page.getPageNum(), page.getPageSize()));
        }
    }

    //查询货币
    @PostMapping("/selectById")
    public Result selectById(@RequestBody Map<String, Object> requestBody) {
        Integer id = (Integer) requestBody.get("id");
        if (ObjectUtils.isEmpty(id)) {
            return Result.error("id 为空！");
        }
        Rate rate = rateService.selectById(id);
        return Result.success(rate);
    }

    // 编辑
    @PostMapping("/update")
    public Result update(@RequestBody Rate rate) {
        if (ObjectUtils.isEmpty(rate.getId())) {
            return Result.error("id不能为空");
        }
        if (ObjectUtils.isEmpty(rate.getRateName())) {
            return Result.error("汇率名称不能为空");
        }
        if(rate.getNum()==null || rate.getNum().compareTo(BigDecimal.ZERO) <= 0){
            return Result.error(("汇率数值不能小于等于0"));
        }
        rateService.update(rate);
        if (rate.getNum() == null || rate.getNum().equals(BigDecimal.ZERO)) {
            return Result.error("汇率数值存在异常");
        }else
        return Result.success("编辑成功");
    }

}