怎么把控制台输出的完整异常信息保存到文本

[INFO ] [09:10:08] org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl - HHH000010: On release of batch it still contained JDBC statements
[WARN ] [09:10:08] org.hibernate.engine.jdbc.spi.SqlExceptionHelper - SQL Error: 0, SQLState: 23505
[ERROR] [09:10:08] org.hibernate.engine.jdbc.spi.SqlExceptionHelper - 批次处理 0 insert into cattagb_page (btname, burl, bvid, commentnums, curl, imgpath, jianjie, paiming, popularity, productnums, supercurlkey, turl, userdislike, usergrade, userlike, tburl) values ('....') 被中止，呼叫 getNextException 以取得原因。
[WARN ] [09:10:08] org.hibernate.engine.jdbc.spi.SqlExceptionHelper - SQL Error: 0, SQLState: 23505
[ERROR] [09:10:08] org.hibernate.engine.jdbc.spi.SqlExceptionHelper - 错误: 重复键违反唯一约束"uk_ex9kef7svstkgntmfy2vh5emn"
  详细：键值"(turl, burl)=(laVjN, ChsfT)" 已经存在
[ERROR] [09:10:08] org.hibernate.engine.jdbc.batch.internal.BatchingBatch - HHH000315: Exception executing batch [could not execute batch]
org.hibernate.exception.ConstraintViolationException: could not execute batch
	at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:129)
	at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
	at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.performExecution(BatchingBatch.java:132)
	at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.doExecuteBatch(BatchingBatch.java:111)
	at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.execute(AbstractBatchImpl.java:163)
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.getBatch(JdbcCoordinatorImpl.java:206)
	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3102)
	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3587)
	at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:103)
	at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:453)
	at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:345)
	at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:350)
	at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56)
	at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1218)
	at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:421)
	at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
	at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:177)
	at zyme.tools.hibernate.MyHibernateUtil.oneThreadCheckThanSaveAllUpgraded(MyHibernateUtil.java:244)
	at threads.save.SaveThread.savebegin(SaveThread.java:37)
	at threads.save.SaveThread.run(SaveThread.java:31)
	at java.lang.Thread.run(Thread.java:744)
Caused by: java.sql.BatchUpdateException: 批次处理 0 insert into cattagb_page (btname, burl, bvid, commentnums, curl, imgpath, jianjie, paiming, popularity, productnums, supercurlkey, turl, userdislike, usergrade, userlike, tburl) values ('....') 被中止，呼叫 getNextException 以取得原因。
	at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2762)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1891)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:405)
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeBatch(AbstractJdbc2Statement.java:2909)
	at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeBatch(NewProxyPreparedStatement.java:1135)
	at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.performExecution(BatchingBatch.java:123)
	... 18 more

catch (Exception e)
    	        {
    	        	
    	        	
    	        	ByteArrayOutputStream baos = new ByteArrayOutputStream();
    	        	try{
    	        		e.printStackTrace(new PrintStream(baos));
    	        	}finally{
    	        		try {
							baos.close();
						} catch (IOException e1) {
							// TODO Auto-generated catch block
							e1.printStackTrace();
						}
    	        	}