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Mac 下python 连接 oracle

下载oracle clienthttps://www.oracle.com/database/technologies/instant-client/macos-intel-x86-downloads.html解压mkdir -p /opt/oracleunzip instantclient-basic-macos.x64-19.3.0.0.0dbru.zipmkdir...

#python#oracle
maven java.lang.NoClassDefFoundError: org/codehaus/plexus/util/DirectoryScanner

org/codehaus/plexus/util/DirectoryScanner在反复搜索无果之后,我将本来的repository plexus-utils 进行了清空/home/lee/.m2/repository/org/codehaus/plexus/plexus-utils然后一切OKmvn install我对plexus 究竟是啥很好奇,搜了一下,原来是另外一个IOC容器http://

#maven#spring
Java ThreadPoolExecutor 线程池 tips 1:单线程吞吐量来估计系统的线程数目

The thread pool model is as below4 job producer for different carrier (Sprint, Sprint Demo, Nextel, At&t)1 job queue as a buffer (although t

#java#性能优化#服务器
mybatis (Ibatis ibator) generator - 1 mysql 分页插件(page/paging/pagination plugin)

前言在线文档,参考 http://ibatis.apache.org/docs/tools/ibator/由于ibatis转移为mybatis,所以参考mybatis 最新文档:http://code.google.com/p/mybatis/wiki/Downloads?tm=2下载的MyBatis Generator Tool中有文档说明http://ibatis.apache.org/doc

#mysql#spring
到底了