| | |
| | | package com.ruoyi.utils.tools; |
| | | |
| | | import com.ruoyi.common.core.redis.RedisCache; |
| | | import lombok.extern.slf4j.Slf4j; |
| | | |
| | | import javax.annotation.Resource; |
| | | import java.lang.reflect.Field; |
| | | import java.text.DecimalFormat; |
| | | import java.time.LocalTime; |
| | | import java.util.*; |
| | | |
| | |
| | | * @return |
| | | */ |
| | | public static String getKeyByMinValue(Map<String, Double> map) { |
| | | if (map == null) return null; |
| | | if (map == null||map.size()==0) return null; |
| | | List<Map.Entry<String, Double>> list = new ArrayList(map.entrySet()); |
| | | Collections.sort(list, (o1, o2) -> (o1.getValue().intValue() - o2.getValue().intValue())); |
| | | String min = list.get(0).getKey(); |
| | |
| | | return 1; |
| | | } |
| | | } |
| | | /** |
| | | * 文件大小智能转换 |
| | | * 会将文件大小转换为最大满足单位 |
| | | * @param size(文件大小,单位为B) |
| | | * @return 文件大小 |
| | | */ |
| | | public static String formatFileSize(Long size) { |
| | | String sizeName = null; |
| | | if (1024 * 1024 > size && size >= 1024) { |
| | | sizeName = String.format("%.2f", size.doubleValue() / 1024) + "KB"; |
| | | } else if (1024 * 1024 * 1024 > size && size >= 1024 * 1024) { |
| | | sizeName = String.format("%.2f", size.doubleValue() / (1024 * 1024)) + "MB"; |
| | | } else if (size >= 1024 * 1024 * 1024) { |
| | | sizeName = String.format("%.2f", size.doubleValue() / (1024 * 1024 * 1024)) + "GB"; |
| | | } else { |
| | | sizeName = size.toString() + "B"; |
| | | } |
| | | return sizeName; |
| | | } |
| | | /** |
| | | * 文件大小智能转换 |
| | | * 会将文件大小转换为最大满足单位 |
| | | * @param size(文件大小,单位为B) |
| | | * @return 文件大小 |
| | | */ |
| | | public static String readableFileSize(long size) { |
| | | if (size <= 0) { |
| | | return "0"; |
| | | } |
| | | final String[] units = new String[]{"B", "KB", "MB", "GB", "TB"}; |
| | | int digitGroups = (int) (Math.log10(size) / Math.log10(1024)); |
| | | return new DecimalFormat("#,###.##").format(size / Math.pow(1024, digitGroups)) + " " + units[digitGroups]; |
| | | } |
| | | |
| | | /** |
| | | * byte数组转字符串 |
| | | * 刘苏义 |
| | | * 2023/10/18 8:42:59 |
| | | * @param byteArray |
| | | */ |
| | | public static String byteArrayToString(byte[] byteArray) { |
| | | StringBuilder stringBuilder = new StringBuilder(); |
| | | for (byte b : byteArray) { |
| | | stringBuilder.append(String.valueOf(b)); |
| | | } |
| | | return stringBuilder.toString(); |
| | | } |
| | | } |