6 changed files with 166 additions and 28 deletions
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package com.ruoyi.common.utils.uuid; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import com.ruoyi.common.utils.DateUtils; |
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import com.ruoyi.common.utils.StringUtils; |
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/** |
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* @author ruoyi 序列生成类 |
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*/ |
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public class Seq |
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{ |
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// 通用序列类型
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public static final String commSeqType = "COMMON"; |
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// 上传序列类型
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public static final String uploadSeqType = "UPLOAD"; |
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// 通用接口序列数
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private static AtomicInteger commSeq = new AtomicInteger(1); |
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// 上传接口序列数
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private static AtomicInteger uploadSeq = new AtomicInteger(1); |
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// 机器标识
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private static String machineCode = "A"; |
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/** |
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* 获取通用序列号 |
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* |
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* @return 序列值 |
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*/ |
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public static String getId() |
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{ |
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return getId(commSeqType); |
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} |
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/** |
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* 默认16位序列号 yyMMddHHmmss + 一位机器标识 + 3长度循环递增字符串 |
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* |
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* @return 序列值 |
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*/ |
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public static String getId(String type) |
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{ |
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AtomicInteger atomicInt = commSeq; |
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if (uploadSeqType.equals(type)) |
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{ |
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atomicInt = uploadSeq; |
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} |
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return getId(atomicInt, 3); |
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} |
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/** |
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* 通用接口序列号 yyMMddHHmmss + 一位机器标识 + length长度循环递增字符串 |
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* |
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* @param atomicInt 序列数 |
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* @param length 数值长度 |
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* @return 序列值 |
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*/ |
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public static String getId(AtomicInteger atomicInt, int length) |
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{ |
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String result = DateUtils.dateTimeNow(); |
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result += machineCode; |
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result += getSeq(atomicInt, length); |
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return result; |
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} |
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/** |
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* 序列循环递增字符串[1, 10 的 (length)幂次方), 用0左补齐length位数 |
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* |
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* @return 序列值 |
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*/ |
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private synchronized static String getSeq(AtomicInteger atomicInt, int length) |
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{ |
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// 先取值再+1
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int value = atomicInt.getAndIncrement(); |
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// 如果更新后值>=10 的 (length)幂次方则重置为1
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int maxSeq = (int) Math.pow(10, length); |
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if (atomicInt.get() >= maxSeq) |
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{ |
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atomicInt.set(1); |
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} |
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// 转字符串,用0左补齐
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return StringUtils.padl(value, length); |
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} |
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} |
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