如果您想用mapreduce处理文本文件或日志文件，默认情况下，mapper输入值将按换行符排列，但我想处理日志文件

A (18:18:43,703 [ERROR] AccStmtGeneratorImpl - Statement not generated for::304005)

B (11:40:04,202 [ERROR] JobStoreTX - Failed to close Connection
 java.sql.SQLException: Already closed.
    at org.apache.commons.dbcp.PoolableConnection.close(PoolableConnection.java:114)
    at `enter code here`org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.close(PoolingDataSource.java:191)
    at org.quartz.impl.jdbcjobstore.JobStoreSupport.closeConnection(JobStoreSupport.java:3579)
    at org.quartz.impl.jdbcjobstore.JobStoreSupport.cleanupConnection(JobStoreSupport.java:3555)
    at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3783)
    at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTrigger(JobStoreSupport.java:2728)
    at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:264)
)

在这里，我的Map器应该从11:40:04202取一个值到新的时间戳，这意味着a将是一个值，而整个b将是另一个值，所以我如何做到这一点。。？提前谢谢请帮忙。。。