Question

我想在我的日志中显示由ihbernate执行的sql查询。

这是我目前的log4j的配置：

<?xml version="1.0" encoding="UTF-8" ?> 
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> 
<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'> 

<appender name="CA" class="org.apache.log4j.ConsoleAppender"> 
    <layout class="org.apache.log4j.PatternLayout"> 
    <param name="ConversionPattern" value="%d{dd-MM-yyyy HH:mm:ss,SSS} [%t] %-5p %c %x - %m%n" /> 
    </layout> 
</appender> 

<root> 
    <level value="info" /> 
    <appender-ref ref="CA" /> 
</root> 

<logger name="org.hibernate.SQL" additivity="false"> 
    <level value="debug" /> 
    <appender-ref ref="CA" /> 
</logger> 

<logger name="org.hibernate.hql" additivity="false"> 
    <level value="debug" /> 
    <appender-ref ref="CA" /> 
</logger> 

<logger name="org.hibernate.stat" additivity="false"> 
    <level value="trace" /> 
    <appender-ref ref="CA" /> 
</logger> 

</log4j:configuration> 

但我仍然得到空与org.hibernate.stat.internal.ConcurrentStatisticsImpl：

08-11-2016 09:54:39,318 [http-bio-8080-exec-8] DEBUG org.hibernate.stat.internal.ConcurrentStatisticsImpl - HHH000117: HQL: null, time: 1ms, rows: 4 

我如何才能登录完整的SQL，而不是HQL: null？

Answer 1

要记录执行的查询添加以下到我的logj4配置：

<!-- log Hibernate SQL Statements without parameters --> 
<logger name="org.hibernate.SQL" additivity="false"> 
    <level value="DEBUG" /> 
    <appender-ref ref="console" /> 
</logger> 
<!-- add logging of parameters of the sql statements --> 
<logger name="org.hibernate.type.descriptor.sql" additivity="false"> 
    <level value="TRACE" /> 
    <appender-ref ref="console" /> 
</logger>