How to see queries being fired by hibernate?

How do I see what queries are being fired by hibernate when a hibernate application is running in tomc开发者_StackOverflow社区at?

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The fast answer is

hibernate.show_sql=true 

e.g. as in http://www.javalobby.org/java/forums/t44119.html

And from the official documentation:

hibernate.show_sql

Writes all SQL statements to console. This is an alternative to setting the log category org.hibernate.SQL to debug. e.g. true | false

hibernate.format_sql

Pretty print the SQL in the log and console. e.g. true | false

See this question as well: Hibernate show real SQL

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Also, if you want to show the value of your parameters you can add

log4j.logger.org.hibernate.type=trace

to your log4j properties file.

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Another alternative is P6Spy. It intercepts the JDBC driver and logs all transactions.

http://sourceforge.net/projects/p6spy/