错误1：
log4j:WARN No appenders could be found for logger (com.newglobal.util.ConnectionDB).
log4j:WARN Please initialize the log4j system properly.
java.lang.NullPointerException
at com.newglobal.cache.RegionCache.initRegionMap(RegionCache.java:47)
at com.newglobal.cache.RegionCache.run(RegionCache.java:127)
at com.newglobal.datasync.DsMain.main(DsMain.java:23)
错误2：
java.sql.SQLException: ORA-12504: TNS:listener was not given the SID in CONNECT_DATA
原因：数据库Oracle10g，现在做了双机热备，以前用到的配置文件要做相应的调整。
解决：之前的Oracle连接字符串Url失效了。
要把DB
url=url=jdbc:oracle:thin:@(description=(address_list= (address=(host=***.***.***.***) (protocol=tcp)(port=1521))(address=(host=***)(protocol=tcp) (port=1521)) (load_balance=yes)(failover=yes))(connect_data=(service_name=****)))