與Batoo JPA啓用SQL日誌

Question

如何啓用SQL日誌與Batoo JPA

Answer 1

您可以通過

log4j.logger.org.batoo.jpa.core.SQL=DEBUG 

在你的log4j.properties

啓用文件

或不處理記錄器並將一個屬性傳遞給persistance.xml，以將sql日誌重定向到STD_OUT或STD_ERR ，如示例所示;

<persistence xmlns="http://java.sun.com/xml/ns/persistence" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence 
    http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" version="2.0"> 

<persistence-unit name="default"> 
    <provider>org.batoo.jpa.core.BatooPersistenceProvider</provider> 

    <class>org.batoo.jpa.core.test.simple.Foo</class> 

    <exclude-unlisted-classes>true</exclude-unlisted-classes> 
    <properties> 
     <property name="org.batoo.jpa.ddl" value="DROP" /> 
     <!--org.batoo.jpa.sql_logging :: NONE | STDOUT | STDERR --> 
     <property name="org.batoo.jpa.sql_logging" value="STDERR" /> 
    </properties> 

</persistence-unit> 

但使log4j的爲DEBUG級別將記錄的查詢參數的值作爲獎勵，這是更好然後問號。