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原创 Window环境 elasticsearch安装ik分词器
下载地址:https://github.com/medcl/elasticsearch-analysis-ik/releases找到跟自己es版本相符合的版本下载好的文件:elasticsearch-analysis-ik-7.8.0.zip解压文件,放到es安装路径下的config目录新建一个文件夹,名为ik将elasticsearch-analysis-ik-7.8.0.zip中的内容解压至ik文件夹中重启es即可生效...
2022-01-20 15:08:38
1417
原创 (Window环境) curl: (6) Could not resolve host: application curl: (6) Could not resolve host: ‘localhos
window环境下执行curl命令批量导入json到elasticsearch中curl -H 'Content-Type: application/x-ndjson' -XPOST 'localhost:9200/bank/account/_bulk?pretty' --data-binary @accounts.json报错信息curl: (6) Could not resolve host: applicationcurl: (6) Could not resolve host: 'loca
2022-01-17 16:35:07
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原创 ElasticSearch 提示 future versions of Elasticsearch will require Java 11解决方法
错误提示:future versions of Elasticsearch will require Java 11; your Java version from [C:\Program Files\Java\jdk1.8.0_201\jre] does not meet this requirementif defined JAVA_HOME (rem set JAVA="%ES_JDK%\bin\java.exe" set JAVA="D:\coding\elasticsearch-7.
2022-01-12 10:32:58
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原创 【Laravel-Eloquent ORM】SQLSTATE[42S22]: Column not found: 1054 Unknown column ‘updated_at‘ in ‘field
错误信息:SQLSTATE[42S22]: Column not found: 1054 Unknown column 'updated_at' in 'field list' (SQL: update `table_name` set `STATE` = 1, `updated_at` = 2020-12-10 18:05:37 where `column_1` = xxx and `STATE` = 0 and `column_2` = xxx )解决方法:对应Model封装类中 public
2020-12-10 18:23:08
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原创 tk.mybatis.mapper.MapperException: 无法获取实体类com.xxx.xxx.model.cluster.City对应的表名!
//TODO 待填坑
2020-07-27 10:30:40
616
原创 create connection SQLException, url: jdbc:mysql://127.0.0.1:3306/xxxx, errorCode 0, state 08001
create connection SQLException, url: jdbc:mysql://127.0.0.1:3306/study, errorCode 0, state 08001java.sql.SQLNonTransientConnectionException: CLIENT_PLUGIN_AUTH is required解决方法: mysql版本为5.0.18换一个mysql驱动 <dependency> <groupId.
2020-07-24 11:24:15
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原创 CAS机制--乐观锁的基础
CAS机制--乐观锁的基础atomic与volatileCAS,即compare and swap,比较并交换。CAS机制当中使用了3个基本操作数:内存地址V,旧的预期值A,要修改的新值B。更新一个变量的时候,只有当变量的预期值A和内存地址V当中的实际值相同时,才会将内存地址V对应的值修改为B。CAS操作的就是乐观锁,每次不加锁而是假设没有冲突而去完成某项操作,如果因为冲突失败就重试,直到...
2020-03-28 00:14:35
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