分布式非公平锁实现、路径参数正则表达式修改增强
parent
50989aa997
commit
2d4bce9513
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@ -3459,9 +3459,11 @@ public class Util extends weaver.general.Util {
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key:hah
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value:haode*/
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// 最终通过反射调用weaver.aiyh_jitu.pushdata.service.GetAssignProcessorProcessorImpl类，将参数传递给这个类，
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// String pattern = "&?(?<key>([#.\\w\\u4E00-\\u9FA5]+))=(?<value>((#(\\{|sql\\{))?([()\\-$#={ }.\\w\\u4E00-\\u9FA5?]+)?}?))&?";
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//String pattern = "&?(?<key>([#.\\w\\u4E00-\\u9FA5]+))=" +
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// "(?<value>(`([\\s():/\\t\\-&*'?$#={ }.\\w\\u4E00-\\u9FA5]*)`|" +
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// "((#(\\{|sql\\{))?([():/\\-$#={ }.\\w\\u4E00-\\u9FA5?]+)?}?)))&?";
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String pattern = "&?(?<key>([#.\\w\\u4E00-\\u9FA5]+))=" +
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"(?<value>((`([():/\\-&?$#={ }.\\w\\u4E00-\\u9FA5?]*)`)|" +
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"(?<value>(`([^`]*)`|" +
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"((#(\\{|sql\\{))?([():/\\-$#={ }.\\w\\u4E00-\\u9FA5?]+)?}?)))&?";
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Pattern compile = Pattern.compile(pattern);
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Matcher matcher = compile.matcher(paramStr);
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@ -3470,6 +3472,9 @@ public class Util extends weaver.general.Util {
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while (matcher.find()) {
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String key = matcher.group("key");
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String paramValue = matcher.group("value");
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if (paramValue.startsWith("`") && paramValue.endsWith("`")) {
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paramValue = paramValue.substring(1, paramValue.length() - 1);
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}
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pathParamMap.put(key, paramValue);
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}
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return pathParamMap;
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@ -0,0 +1,27 @@
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package aiyh.utils.lock;
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import lombok.Getter;
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import lombok.Setter;
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import lombok.ToString;
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/**
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* <h1>锁参数信息</h1>
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*
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* <p>create: 2022-12-11 02:07</p>
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*
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* @author youHong.ai
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*/
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@Getter
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@Setter
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@ToString
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public class LockEntity {
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/** 锁住次数 */
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private Integer times;
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/** 锁标识 */
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private Thread lockMark;
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/** 过期时间 */
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private Long expirationTime;
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}
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@ -0,0 +1,33 @@
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package aiyh.utils.lock;
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import lombok.Getter;
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import lombok.Setter;
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import lombok.ToString;
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/**
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* <h1>锁对应数据库的实体类</h1>
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*
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* <p>create: 2022-12-11 00:24</p>
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*
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* @author youHong.ai
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*/
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@Setter
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@Getter
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@ToString
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public class LockPojo {
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/**
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* 数据库id
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*/
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private Integer id;
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/** 过期时间 */
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private Long expirationTime;
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/** 锁的键 */
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private String lockName;
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/** 锁状态 */
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private Integer lockStatus;
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}
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@ -0,0 +1,129 @@
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package aiyh.utils.lock;
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import aiyh.utils.annotation.recordset.ParamMapper;
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import aiyh.utils.annotation.recordset.Select;
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import aiyh.utils.annotation.recordset.SqlMapper;
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import aiyh.utils.annotation.recordset.Update;
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/**
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* <h1>分布式锁数据库查询</h1>
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*
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* <p>create: 2022-12-11 00:22</p>
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*
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* @author youHong.ai
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*/
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@SqlMapper
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public interface LockUtilMapper {
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/**
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* <h2>根据锁名称获取锁状态</h2>
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* <i>2022/12/11 00:37</i>
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* ******************************************
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*
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* @param lockKey 锁名称
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* @return LockPojo 锁参数对象
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* @author youHong.ai ******************************************
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*/
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@Select("select id, lock_name, lock_status, expiration_time " +
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"from uf_cus_lock " +
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"where lock_name = #{lockKey}")
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LockPojo selectLock(@ParamMapper("lockKey") String lockKey);
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/**
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* <h2>根据锁名称释放锁资源</h2>
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* <i>2022/12/11 00:46</i>
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* ******************************************
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*
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* @param id 锁id
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* @return boolean 是否更新成功
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* @author youHong.ai ******************************************
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*/
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@Update("update uf_cus_lock " +
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"set lock_status = 0 " +
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"where id = #{id} " +
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" and lock_status = 1")
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boolean unLock(@ParamMapper("id") Integer id);
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/**
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* <h2>根据锁名称释放锁资源</h2>
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* <i>2022/12/11 00:46</i>
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* ******************************************
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*
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* @param lockKey 锁名称
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* @return boolean 是否更新成功
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* @author youHong.ai ******************************************
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*/
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@Update("update uf_cus_lock " +
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"set lock_status = 0 " +
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"where lock_name = #{lockKey} " +
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" and lock_status = 1")
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boolean unLock(@ParamMapper("lockKey") String lockKey);
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/**
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* <h2>更新锁状态，锁住资源</h2>
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* <i>2022/12/11 00:49</i>
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* ******************************************
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*
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* @param id 数据id
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* @param lockKey 锁名称
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* @param time 过期时间
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* @return boolean 是否成功锁住资源
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* @author youHong.ai ******************************************
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*/
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@Update("update uf_cus_lock " +
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"set lock_name = #{lockKey}," +
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" expiration_time = #{time}," +
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" lock_status = 1 " +
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"where id = #{id} " +
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" and (lock_status = 0 or expiration_time < #{time})")
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boolean lock(@ParamMapper("id") Integer id,
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@ParamMapper("lockKey") String lockKey,
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@ParamMapper("time") Long time);
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/**
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* <h2>更新锁过期时间，续期</h2>
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* <i>2022/12/11 00:52</i>
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* ******************************************
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*
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* @param lockKey 锁名称
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* @param time 过期时间
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* @return boolean 是否更新成功
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* @author youHong.ai ******************************************
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*/
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@Update("update uf_cus_lock " +
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"set expiration_time = #{time} " +
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"where lock_name = #{lockKey} " +
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" and lock_status = 1")
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boolean updateLockTime(@ParamMapper("lockKey") String lockKey,
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@ParamMapper("time") Long time);
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/**
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* <h2>对过期锁重新设置锁</h2>
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* <i>2022/12/11 15:02</i>
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* ******************************************
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*
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* @param id 锁id
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* @param lockKey 锁名称
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* @param time 锁过期时间
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* @param expirationTime 上一个锁的过期时间
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* @return boolean 是否重新上锁成功
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* @author youHong.ai ******************************************
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*/
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@Update("update uf_cus_lock " +
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"set lock_name = #{lockKey}, " +
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" expiration_time = #{time}, " +
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" lock_status = 1 " +
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"where id = #{id} " +
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" and lock_status = 1 " +
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" and expiration_time = #{expirationTime}")
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boolean reLock(@ParamMapper("id") Integer id,
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@ParamMapper("lockKey") String lockKey,
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@ParamMapper("time") Long time,
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@ParamMapper("expirationTime") Long expirationTime);
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}
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@ -0,0 +1,346 @@
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package aiyh.utils.lock;
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import aiyh.utils.Util;
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import aiyh.utils.excention.CustomerException;
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import cn.hutool.core.thread.ThreadUtil;
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import ebu7common.youhong.ai.bean.Builder;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Objects;
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/**
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* <h1>分布式锁</h1>
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*
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* <p>create: 2022-12-11 00:21</p>
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*
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* @author youHong.ai
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*/
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public class LockUtils {
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private static final LockUtilMapper mapper = Util.getMapper(LockUtilMapper.class);
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private static final Map<String, LockEntity> LOCK_MAP = new HashMap<>();
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/** 默认过期时间 10s */
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private static final Long DEFAULT_OVERDUE_TIME = 1_000 * 10L;
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private static final String UF_CUS_LOCK = "uf_cus_lock";
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/**
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* <h2>上锁</h2>
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* <i>2022/12/11 15:40</i>
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* ******************************************
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*
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* @param lockName 锁名称
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* @param reentrant 是否可重入
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* @return boolean 是否抢占成功
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* @author youHong.ai ******************************************
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*/
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public static boolean lock(String lockName, boolean reentrant) {
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return lock(lockName, DEFAULT_OVERDUE_TIME, reentrant);
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}
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/**
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* <h2>上锁</h2>
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* <i>2022/12/11 15:40</i>
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* ******************************************
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*
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* @param lockName 锁名称
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* @param overdueTime 超时时间
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* @param reentrant 是否可重入
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* @return boolean 是否抢占成功
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* @author youHong.ai ******************************************
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*/
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public static boolean lock(String lockName, Long overdueTime, boolean reentrant) {
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LockPojo lockPojo = mapper.selectLock(lockName);
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if (Objects.isNull(lockPojo) || lockPojo.getId() <= 0) {
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return insertLock(lockName, overdueTime);
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} else {
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// 存在当前的锁的锁名称
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if (lockPojo.getLockStatus() == 1) {
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// 锁处于锁定状态
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return onLock(lockName, overdueTime, reentrant, lockPojo);
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} else {
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// 处于未锁定状态开始对资源上锁
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boolean lock = mapper.lock(lockPojo.getId(), lockName, overdueTime);
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if (lock) {
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// 锁定成功
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LOCK_MAP.put(lockName,
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Builder.builder(LockEntity::new)
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.with(LockEntity::setTimes, 1)
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.with(LockEntity::setLockMark, Thread.currentThread())
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.with(LockEntity::setExpirationTime, overdueTime)
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.build());
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return true;
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} else {
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// 抢占锁失败
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lockPojo = mapper.selectLock(lockName);
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return retryGetLock(lockName, overdueTime, lockPojo);
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}
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}
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}
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}
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/**
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* <h2>处于锁状态</h2>
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* <i>2022/12/11 12:23</i>
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* ******************************************
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*
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* @param lockName 锁名称
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* @param overdueTime 锁超时时间
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* @param reentrant 是否可重入锁
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* @param lockPojo 锁信息对象
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* @return boolean 是否获取锁成功
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* @author youHong.ai ******************************************
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*/
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private static boolean onLock(String lockName, Long overdueTime, boolean reentrant, LockPojo lockPojo) {
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Long time = lockPojo.getExpirationTime();
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if (time > System.currentTimeMillis()) {
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// 锁过期了 如果要使锁生效就将日期加长
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return lockExpiration(lockName, overdueTime, lockPojo);
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} else {
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//锁没有过期
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return inLockTime(lockName, overdueTime, reentrant);
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}
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}
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/**
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* <h2>锁未过期</h2>
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* <i>2022/12/11 12:24</i>
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* ******************************************
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*
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* @param lockName 锁名称
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* @param overdueTime 锁过期时间
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* @param reentrant 是否可重入
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* @return boolean 是否成功获取锁
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* @author youHong.ai ******************************************
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*/
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private static boolean inLockTime(String lockName, Long overdueTime, boolean reentrant) {
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//判断是否存在本地锁对象中
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LockPojo lockPojo = mapper.selectLock(lockName);
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if (!LOCK_MAP.containsKey(lockName)) {
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// 不是本地锁，不支持可重入，使线程进入等待状态
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int n = 0;
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return retryGetLock(lockName, overdueTime, lockPojo);
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}
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// 是本地锁
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return getLock(lockName, overdueTime, reentrant);
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}
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/**
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* <h2>尝试抢占资源锁</h2>
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* <i>2022/12/11 15:34</i>
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* ******************************************
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*
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* @param lockName 锁名称
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* @param overdueTime 锁过期时间
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* @param lockPojo 锁参数对象
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* @return boolean 是否抢占锁成功
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* @author youHong.ai ******************************************
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*/
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private static boolean retryGetLock(String lockName, Long overdueTime, LockPojo lockPojo) {
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while (lockPojo.getExpirationTime() > System.currentTimeMillis()) {
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// 锁还没过期,使线程休眠
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long l = lockPojo.getExpirationTime() - System.currentTimeMillis();
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if (l > 10) {
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ThreadUtil.safeSleep(l - 10L);
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}
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// 尝试获取锁
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lockExpiration(lockName, overdueTime + l, lockPojo);
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}
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return true;
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}
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/**
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* <h2>获取锁</h2>
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* <i>2022/12/11 13:57</i>
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* ******************************************
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*
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* @param lockName 锁名称
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* @param overdueTime 超时时间
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* @param reentrant 是否可重入
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* @return boolean 锁是否获取成功
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* @author youHong.ai ******************************************
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*/
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private static boolean getLock(String lockName, Long overdueTime, boolean reentrant) {
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if (reentrant) {
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LockEntity lockEntity = LOCK_MAP.get(lockName);
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lockEntity.setTimes(lockEntity.getTimes() + 1);
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} else {
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LockPojo lockPojo = mapper.selectLock(lockName);
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retryGetLock(lockName, overdueTime, lockPojo);
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}
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return true;
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}
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/**
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* <h2>锁过期</h2>
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* <i>2022/12/11 12:25</i>
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* ******************************************
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*
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* @param lockName 锁名称
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* @param overdueTime 锁过期时间
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* @return boolean 是否成功获取锁
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* @author youHong.ai ******************************************
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*/
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private static boolean lockExpiration(String lockName, Long overdueTime, LockPojo lockPojo) {
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boolean lock = mapper.reLock(lockPojo.getId(), lockName, overdueTime, lockPojo.getExpirationTime());
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if (lock) {
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//更新锁状态成功
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LockEntity lockEntity = Builder.builder(LockEntity::new)
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.with(LockEntity::setTimes, 1)
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.with(LockEntity::setLockMark, Thread.currentThread())
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.with(LockEntity::setExpirationTime, overdueTime)
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.build();
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LOCK_MAP.put(lockName, lockEntity);
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return true;
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} else {
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// 更新失败，可能是其他服务器抢先获得了锁
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LockPojo newLockPojo = mapper.selectLock(lockName);
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if (Objects.isNull(newLockPojo)) {
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// 锁被释放了
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boolean isLock = insertLock(lockName, overdueTime);
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if (!isLock) {
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throw new CustomerException("can not getLock!");
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}
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return true;
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}
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if (newLockPojo.getExpirationTime() > lockPojo.getExpirationTime()) {
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// 锁被其他机器抢占
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return retryGetLock(lockName, overdueTime, newLockPojo);
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}
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}
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return false;
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}
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/**
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* <h2>新增锁记录</h2>
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* <i>2022/12/11 12:25</i>
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* ******************************************
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*
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* @param lockName 锁名称
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* @param overdueTime 锁过期时间
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* @return boolean 是否是可重入锁
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* @author youHong.ai ******************************************
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*/
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private static boolean insertLock(String lockName, Long overdueTime) {
|
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// 没有锁需要新增一条锁记录
|
||||
String modeId = Util.getModeIdByTableName(UF_CUS_LOCK);
|
||||
int dataId = Util.getModeDataId(UF_CUS_LOCK, Integer.parseInt(modeId), 1);
|
||||
long currentTime = System.currentTimeMillis();
|
||||
Long expirationTime = currentTime + overdueTime;
|
||||
boolean lock = mapper.lock(dataId, lockName, expirationTime);
|
||||
if (lock) {
|
||||
// 锁成功
|
||||
LockEntity lockEntity = Builder.builder(LockEntity::new)
|
||||
.with(LockEntity::setTimes, 1)
|
||||
.with(LockEntity::setLockMark, Thread.currentThread())
|
||||
.with(LockEntity::setExpirationTime, overdueTime)
|
||||
.build();
|
||||
LOCK_MAP.put(lockName, lockEntity);
|
||||
} else {
|
||||
// 锁失败
|
||||
retryLock(dataId, lockName, expirationTime, 0);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* <h2>重试锁</h2>
|
||||
* <i>2022/12/11 01:39</i>
|
||||
* ******************************************
|
||||
*
|
||||
* @param dataId 数据id
|
||||
* @param lockName 锁名称
|
||||
* @param expirationTime 过期时间
|
||||
* @param n 重试次数
|
||||
* @author youHong.ai ******************************************
|
||||
*/
|
||||
private static void retryLock(int dataId, String lockName, Long expirationTime, int n) {
|
||||
if (n > 5) {
|
||||
throw new CustomerException("get lock error! 5 failed attempts to update the database！");
|
||||
}
|
||||
ThreadUtil.safeSleep((n + 1) * 500);
|
||||
boolean lock = mapper.lock(dataId, lockName, expirationTime + (n + 1) * 500L);
|
||||
if (lock) {
|
||||
// 锁成功
|
||||
LockEntity lockEntity = Builder.builder(LockEntity::new)
|
||||
.with(LockEntity::setTimes, 1)
|
||||
.with(LockEntity::setLockMark, Thread.currentThread())
|
||||
.with(LockEntity::setExpirationTime, expirationTime + (1 + n) * 500L)
|
||||
.build();
|
||||
LOCK_MAP.put(lockName, lockEntity);
|
||||
} else {
|
||||
// 锁失败
|
||||
retryLock(dataId, lockName, expirationTime, n + 1);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* <h2>锁续期</h2>
|
||||
* <i>2022/12/11 15:49</i>
|
||||
* ******************************************
|
||||
*
|
||||
* @param lockKey 锁名字
|
||||
* @param expirationTime 锁过期时间
|
||||
* @return boolean 是否续期成功
|
||||
* @author youHong.ai ******************************************
|
||||
*/
|
||||
public boolean updateLockTime(String lockKey, Long expirationTime) {
|
||||
if (!mapper.updateLockTime(lockKey, expirationTime)) {
|
||||
// 更新失败
|
||||
int n = 0;
|
||||
do {
|
||||
if (n++ > 5) {
|
||||
return false;
|
||||
}
|
||||
} while (!mapper.updateLockTime(lockKey, expirationTime));
|
||||
}
|
||||
if (LOCK_MAP.containsKey(lockKey)) {
|
||||
// 存在本地锁，更新锁信息
|
||||
LockEntity lockEntity = LOCK_MAP.get(lockKey);
|
||||
lockEntity.setExpirationTime(expirationTime);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* <h2>释放锁</h2>
|
||||
* <i>2022/12/11 15:56</i>
|
||||
* ******************************************
|
||||
*
|
||||
* @param lockName 锁名称
|
||||
* @author youHong.ai ******************************************
|
||||
*/
|
||||
public void unLock(String lockName) {
|
||||
if (LOCK_MAP.containsKey(lockName)) {
|
||||
// 存在本地锁
|
||||
LockEntity lockEntity = LOCK_MAP.get(lockName);
|
||||
if (!lockEntity.getLockMark().equals(Thread.currentThread())) {
|
||||
// 并非当前上锁的线程在释放锁
|
||||
return;
|
||||
}
|
||||
Integer times = lockEntity.getTimes();
|
||||
if (times - 1 == 0) {
|
||||
boolean unlock = mapper.unLock(lockName);
|
||||
if (!unlock) {
|
||||
int n = 0;
|
||||
do {
|
||||
if (n++ > 5) {
|
||||
throw new CustomerException("can not unLock!Failed to release the lock after five attempts！");
|
||||
}
|
||||
} while (!mapper.unLock(lockName)); // 释放锁失败
|
||||
}
|
||||
return;
|
||||
}
|
||||
lockEntity.setTimes(lockEntity.getTimes() - 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1241,6 +1241,7 @@ public class DealWithMapping extends ToolUtil {
|
|||
|
||||
/**
|
||||
* <h2>请求结果赋值到配置信息中</h2>
|
||||
*
|
||||
* @param responseMappingList 回写信息配置列表
|
||||
* @param requestRes 请求结果
|
||||
* @return 要插入的信息
|
||||
|
|
@ -1376,7 +1377,7 @@ public class DealWithMapping extends ToolUtil {
|
|||
value:haode*/
|
||||
// 最终通过反射调用weaver.aiyh_jitu.pushdata.service.GetAssignProcessorProcessorImpl类，将参数传递给这个类， 使用``包裹的字符串会被解析为一个字符串
|
||||
String pattern = "&?(?<key>([#.\\w\\u4E00-\\u9FA5]+))=" +
|
||||
"(?<value>((`([():/\\-&$?#={ }.\\w\\u4E00-\\u9FA5?]*)`)|" +
|
||||
"(?<value>((`([^`]*)`)|" +
|
||||
"((#(\\{|sql\\{))?([():/\\-$#={ }.\\w\\u4E00-\\u9FA5?]+)?}?)))&?";
|
||||
Pattern compile = Pattern.compile(pattern);
|
||||
Matcher matcher = compile.matcher(paramStr);
|
||||
|
|
|
|||
|
|
@ -1,5 +1,6 @@
|
|||
package youhong.ai.pcn;
|
||||
|
||||
import aiyh.utils.Util;
|
||||
import aiyh.utils.httpUtil.HttpMultipartFile;
|
||||
import aiyh.utils.httpUtil.ResponeVo;
|
||||
import aiyh.utils.httpUtil.util.HttpUtils;
|
||||
|
|
@ -108,6 +109,21 @@ public class TestOrganization extends BaseTest {
|
|||
@Test
|
||||
public void testStaticLog() {
|
||||
log.info("哈哈哈好的方式");
|
||||
String testStr = "slflas.fasjdflaf.fasdf?hah=liuliu&cus=`select? * fr$%&#@!)(<>?/\\{}「」【【】[]~、asfom table where id = '' and teset = #{name}`&niua=卧槽";
|
||||
Map<String, String> stringStringMap = Util.parseCusInterfacePathParam(testStr);
|
||||
System.out.println(JSON.toJSONString(stringStringMap));
|
||||
//String pattern = "&?(?<key>([#.\\w\\u4E00-\\u9FA5]+))=" +
|
||||
// "(?<value>(`([():/\\-&$#='*{ }.\\w\\u4E00-\\u9FA5?]*)`|((#(\\{|sql\\{))?([():/\\-$#={ }.\\w\\u4E00-\\u9FA5?]+)?}?)))&?";
|
||||
//String pattern = "=`(?<value>(([\\u4E00-\\u9FA5\\w.'#=?${ }*])*))`";
|
||||
//String pattern = "&?(?<key>([#.\\w\\u4E00-\\u9FA5]+))=(?<value>(`([():/\\-&?%#\\t\\n='{ }.\\w\\u4E00-\\u9FA5]*)*`))";
|
||||
//Pattern compile = Pattern.compile(pattern);
|
||||
//Matcher matcher = compile.matcher(testStr);
|
||||
//while (matcher.find()) {
|
||||
// String key = matcher.group("key");
|
||||
// System.out.println(key);
|
||||
//String paramValue = matcher.group("value");
|
||||
//System.out.println(paramValue);
|
||||
//}
|
||||
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue