java classpath批量设置shell脚本 注意:linux bash jar文件之间的分隔符是':' export JAR_HOME=path to directory which includes jars for f in $JAR_HOME/*.jar do JAR_CLASSPATH=$JAR_CLASSPATH:$f done export JAR_CLASSPATH #the next line will print the JAR_CLASS
Java自己动手写连接池三,核心代码; package com.kama.cn; import java.sql.Connection;import java.util.ArrayList;import java.util.List; public class ConnectionPool { //数据库连接 private static ConnectionPool connectionPool=new ConnectionPool(); public List<Connection> po
批量导入数据到hbase的时候,报错: org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException: Failed 1 action: NotServingRegionException: 1 time, at org.apache.hadoop.hbase.client.AsyncProcess$BatchErrors.makeException(AsyncProcess.java:227) at org.apache