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This commit is contained in:
wangw
2024-05-13 17:51:30 +08:00
parent d391f136bf
commit 6f6d1c3a7b
69 changed files with 1533 additions and 666 deletions
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20
src/main/java/com/chaozhanggui/system/cashierservice/util/BigDecimalUtils.java Normal file
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@@ -0,0 +1,20 @@
package com.chaozhanggui.system.cashierservice.util;
import java.math.BigDecimal;
public class BigDecimalUtils {
/**
* 折扣计算
* @param orPrice 原价
* @param saPrice 现价
* @return
*/
public static BigDecimal getDiscount(BigDecimal orPrice,BigDecimal saPrice){
BigDecimal discountRate = saPrice.divide(orPrice, 2, BigDecimal.ROUND_HALF_UP);
// 将折扣率转换为百分比形式
BigDecimal discountPercentage = discountRate.multiply(BigDecimal.TEN);
return discountPercentage;
}
}

10
src/main/java/com/chaozhanggui/system/cashierservice/util/DateUtils.java
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@@ -269,6 +269,16 @@ public class DateUtils {
cal.set(Calendar.MILLISECOND, 999);
return cal.getTime();
}
public static Long getDayStartLong() {
// 获取今天的日期和时间（00:00:00）
LocalDateTime todayStart = LocalDateTime.now().toLocalDate().atStartOfDay();
// 转换为UTC时间戳（毫秒）
long timestampInMillis = todayStart.toInstant(ZoneOffset.UTC).toEpochMilli();
return timestampInMillis;
}
public static Long getDayEndLong() {
// 获取今天的日期和时间（00:00:00）
LocalDateTime todayStart = LocalDateTime.now().toLocalDate().atStartOfDay();

35
src/main/java/com/chaozhanggui/system/cashierservice/util/LocationUtils.java
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@@ -1,5 +1,7 @@
package com.chaozhanggui.system.cashierservice.util;
import org.apache.commons.lang3.StringUtils;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.HashMap;
@@ -9,7 +11,27 @@ import static java.lang.Math.*;
import static java.lang.Math.sin;
public class LocationUtils {
/**
* 通过Ip获取定位信息
* @param ip
* @return
*/
public static String getGPSByIp(String ip) {
Map<String, String> param = new HashMap<>();
//超掌柜生活-用户端
param.put("key", "7a7f2e4790ea222660a027352ee3af39");
if(StringUtils.isNotBlank(ip)){
param.put("ip", ip);
}
String s = HttpClientUtil.doGet("https://restapi.amap.com/v3/ip", param);
return s;
}
/**
* 行政区域查询
* @param keywords
* @return
*/
public static String district(String keywords) {
Map<String, String> param = new HashMap<>();
//超掌柜生活-用户端
@@ -57,20 +79,23 @@ public class LocationUtils {
* 右上顶点 double[] leftTopPoints = stringMap.get("rightTopPoint");
* 左下点 double[] leftBottomPoints = stringMap.get("leftBottomPoint");
*/
public static Map<String, double[]> returnLLSquarePoint(double longitude, double latitude, double distanceInKm) {
public static Map<String, double[]> returnLLSquarePoint(double longitude, double latitude, String distanceInKm) {
BigDecimal distanceKm = new BigDecimal(10);
if (StringUtils.isNotBlank(distanceInKm)) {
distanceKm = new BigDecimal(distanceInKm);
}
Map<String, double[]> squareMap = new HashMap<>();
BigDecimal bdlongitude = new BigDecimal(longitude);
// 地球平均半径，单位：千米
BigDecimal earthRadius = new BigDecimal("6378.137");
// 将距离转换为弧度
BigDecimal radialDistance = BigDecimal.valueOf(distanceInKm).divide(earthRadius, 10, RoundingMode.HALF_UP);
BigDecimal radialDistance = distanceKm.divide(earthRadius, 10, RoundingMode.HALF_UP);
// 计算纬度上变化对应的角度
BigDecimal dLatitude = BigDecimal.valueOf(Math.toDegrees(2 * Math.asin(Math.sin(radialDistance.divide(BigDecimal.valueOf(2)).doubleValue()) / Math.cos(Math.toRadians(latitude)))));
// 计算经度上变化对应的角度，这里需要考虑纬度对距离的影响
// 使用Haversine公式来估算在给定纬度上，距离对应的经度变化
BigDecimal estimatedLongitudeDistance = getDistanceFrom2LngLat(latitude, longitude, latitude, bdlongitude.add(BigDecimal.valueOf(0.01)).doubleValue()); // 假设0.01度经度变化对应的距离
BigDecimal dLongitude = BigDecimal.valueOf(distanceInKm).divide(estimatedLongitudeDistance, 10, RoundingMode.HALF_UP).multiply(new BigDecimal("0.0192736")); // 根据比例计算经度变化
BigDecimal dLongitude = distanceKm.divide(estimatedLongitudeDistance, 10, RoundingMode.HALF_UP).multiply(new BigDecimal("0.0192736")); // 根据比例计算经度变化
// 正方形四个顶点的坐标
double[] rightTopPoint = {BigDecimal.valueOf(latitude).add(dLatitude.divide(BigDecimal.valueOf(2))).doubleValue(), BigDecimal.valueOf(longitude).add(dLongitude.divide(BigDecimal.valueOf(2))).doubleValue()};
double[] leftBottomPoint = {BigDecimal.valueOf(latitude).subtract(dLatitude.divide(BigDecimal.valueOf(2))).doubleValue(), BigDecimal.valueOf(longitude).subtract(dLongitude.divide(BigDecimal.valueOf(2))).doubleValue()};
@@ -93,7 +118,7 @@ public class LocationUtils {
}
//1KM
public static void main(String[] args) {
Map<String, double[]> stringMap = returnLLSquarePoint(108.975418, 34.280890, 5);
Map<String, double[]> stringMap = returnLLSquarePoint(108.975418, 34.280890, "5");
double[] leftTopPoints = stringMap.get("rightTopPoint");
double[] leftBottomPoints = stringMap.get("leftBottomPoint");