Question

大家好！

我使用spring + jpa。在TomEE服务器上运行它。在tomee文件中，我有正确的数据源到我的MySQL服务器。当我执行entityManager的持久化操作时，我会收到此日志

2015-05-01 01:57:46,740 DEBUG [http-bio-8080-exec-2] 

implementations.CommonDaoImpl (CommonDaoImpl.java:42) - save method ended success
2015-05-01 02:22:09,697 DEBUG [http-bio-8080-exec-2] implementations.CommonDaoImpl (CommonDaoImpl.java:32) - getById method started with id=1
[EL Finer]: 2015-05-01 02:22:09.698--ServerSession(160948815)--Thread(Thread[http-bio-8080-exec-2,5,main])--client acquired: 1920349854
[EL Finer]: 2015-05-01 02:22:09.698--ClientSession(1920349854)--Thread(Thread[http-bio-8080-exec-2,5,main])--acquire unit of work: 788265415
[EL Finest]: 2015-05-01 02:22:09.698--UnitOfWork(788265415)--Thread(Thread[http-bio-8080-exec-2,5,main])--Execute query ReadObjectQuery(name="readUser" referenceClass=User sql="SELECT LOGIN, FIRSTNAME, MIDDLENAME, PASSWORD, SECONDNAME FROM USER WHERE (LOGIN = ?)")
[EL Finest]: 2015-05-01 02:22:09.698--ServerSession(160948815)--Connection(550211562)--Thread(Thread[http-bio-8080-exec-2,5,main])--Connection acquired from connection pool [read].
[EL Finest]: 2015-05-01 02:22:09.698--ServerSession(160948815)--Thread(Thread[http-bio-8080-exec-2,5,main])--reconnecting to external connection pool
[EL Fine]: 2015-05-01 02:22:09.699--ServerSession(160948815)--Connection(341138552)--Thread(Thread[http-bio-8080-exec-2,5,main])--SELECT LOGIN, FIRSTNAME, MIDDLENAME, PASSWORD, SECONDNAME FROM USER WHERE (LOGIN = ?)
    bind => [1]
[EL Finest]: 2015-05-01 02:22:09.703--ServerSession(160948815)--Connection(550211562)--Thread(Thread[http-bio-8080-exec-2,5,main])--Connection released to connection pool [read].
[EL Finer]: 2015-05-01 02:22:09.703--UnitOfWork(788265415)--Thread(Thread[http-bio-8080-exec-2,5,main])--release unit of work
[EL Finer]: 2015-05-01 02:22:09.703--ClientSession(1920349854)--Thread(Thread[http-bio-8080-exec-2,5,main])--client released
2015-05-01 02:22:09,703 DEBUG [http-bio-8080-exec-2] implementations.CommonDaoImpl (CommonDaoImpl.java:34) - getById method ended with obj=null
2015-05-01 02:22:09,712 DEBUG [http-bio-8080-exec-2] implementations.UserServiceImpl (UserServiceImpl.java:47) - saveNotActivatedUser method started with user = 1[1, null, 1][STUDENT, STUDENT]
2015-05-01 02:22:09,713 DEBUG [http-bio-8080-exec-2] implementations.CommonDaoImpl (CommonDaoImpl.java:40) - save method started with entity=1[1, null, 1][STUDENT, STUDENT]
[EL Finer]: 2015-05-01 02:22:09.714--ServerSession(160948815)--Thread(Thread[http-bio-8080-exec-2,5,main])--client acquired: 1983904739
[EL Finer]: 2015-05-01 02:22:09.714--ClientSession(1983904739)--Thread(Thread[http-bio-8080-exec-2,5,main])--acquire unit of work: 1655845051
[EL Finest]: 2015-05-01 02:22:09.714--UnitOfWork(1655845051)--Thread(Thread[http-bio-8080-exec-2,5,main])--persist() operation called on: 1[1, null, 1][STUDENT, STUDENT].
[EL Finer]: 2015-05-01 02:22:09.716--UnitOfWork(1655845051)--Thread(Thread[http-bio-8080-exec-2,5,main])--release unit of work
[EL Finer]: 2015-05-01 02:22:09.716--ClientSession(1983904739)--Thread(Thread[http-bio-8080-exec-2,5,main])--client released
2015-05-01 02:22:09,716 DEBUG [http-bio-8080-exec-2] implementations.CommonDaoImpl (CommonDaoImpl.java:42) - save method ended success
2015-05-01 02:22:09,716 DEBUG [http-bio-8080-exec-2] implementations.UserServiceImpl (UserServiceImpl.java:49) - saveNotActivatedUser method ended successfull
2015-05-01 02:22:09,717 DEBUG [http-bio-8080-exec-2] implementations.CommonDaoImpl (CommonDaoImpl.java:40) - save method started with entity=entity.Activation@209d779c
[EL Finer]: 2015-05-01 02:22:09.717--ServerSession(160948815)--Thread(Thread[http-bio-8080-exec-2,5,main])--client acquired: 1108849534
[EL Finer]: 2015-05-01 02:22:09.717--ClientSession(1108849534)--Thread(Thread[http-bio-8080-exec-2,5,main])--acquire unit of work: 571029272
[EL Finest]: 2015-05-01 02:22:09.718--UnitOfWork(571029272)--Thread(Thread[http-bio-8080-exec-2,5,main])--persist() operation called on: entity.Activation@209d779c.
[EL Finer]: 2015-05-01 02:22:09.722--UnitOfWork(571029272)--Thread(Thread[http-bio-8080-exec-2,5,main])--release unit of work
[EL Finer]: 2015-05-01 02:22:09.723--ClientSession(1108849534)--Thread(Thread[http-bio-8080-exec-2,5,main])--client released
2015-05-01 02:22:09,723 DEBUG [http-bio-8080-exec-2] implementations.CommonDaoImpl (CommonDaoImpl.java:42) - save method ended success

看起来一切都是正确的。但在我的数据库中没有一个数据行。

这是我的persistence.xml

<persistence-unit name="joyUnit">
        <class>entity.User</class>
        <class>entity.Activation</class>
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <jta-data-source>JoyDS</jta-data-source>
        <properties>
            <property name="eclipselink.ddl-generation" value="create-tables"></property>
            <property name="eclipselink.ddl-generation.output-mode" value="database"></property>
            <property name="eclipselink.logging.level" value="FINEST" />
            <property name="eclipselink.jdbc.cache-statements" value="true"></property>
            <property name="eclipselink.logging.parameters" value="true" />
        </properties>
    </persistence-unit>

或者有人可以告诉我如何在java中执行绑定jta-data-sources。因为我不了解JTA交易类型。这段代码在春天发现了什么？

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
        <property name="persistenceUnitName" value="joyUnit" />
    </bean>

我认为连接到内部数据库但在我看到的日志中

[EL Config]: 2015-05-01 01:57:46.33--ServerSession(160948815)--Connection(692349912)--Thread(Thread[http-bio-8080-exec-2,5,main])--connecting(DatabaseLogin(
    platform=>DatabasePlatform
    user name=> ""
    connector=>JNDIConnector datasource name=>null
))
[EL Config]: 2015-05-01 01:57:46.331--ServerSession(160948815)--Connection(2016054357)--Thread(Thread[http-bio-8080-exec-2,5,main])--Connected: jdbc:mysql://localhost/joy
    User: user@localhost
    Database: MySQL  Version: 5.6.20
    Driver: MySQL Connector Java  Version: mysql-connector-java-5.1.31 ( Revision: alexander.soklakov@oracle.com-20140520065950-groqzzbvxprqdmnz )
[EL Finest]: 2015-05-01 01:57:46.332--ServerSession(160948815)--Connection(828595733)--Thread(Thread[http-bio-8080-exec-2,5,main])--Connection acquired from connection pool [read].
[EL Finest]: 2015-05-01 01:57:46.332--ServerSession(160948815)--Connection(828595733)--Thread(Thread[http-bio-8080-exec-2,5,main])--Connection released to connection pool [read].
[EL Config]: 2015-05-01 01:57:46.332--ServerSession(160948815)--Connection(1924517383)--Thread(Thread[http-bio-8080-exec-2,5,main])--connecting(DatabaseLogin(
    platform=>MySQLPlatform
    user name=> ""
    connector=>JNDIConnector datasource name=>null
))
[EL Config]: 2015-05-01 01:57:46.338--ServerSession(160948815)--Connection(37511204)--Thread(Thread[http-bio-8080-exec-2,5,main])--Connected: jdbc:mysql://localhost/joy
    User: user@localhost
    Database: MySQL  Version: 5.6.20
    Driver: MySQL Connector Java  Version: mysql-connector-java-5.1.31 ( Revision: alexander.soklakov@oracle.com-20140520065950-groqzzbvxprqdmnz )

有人可以解释为什么db登录设置3次???

因为前段时间我可以在没有类路径中的persistence.xml文件的情况下正确地写入数据库，但是必须使用名称＆＃39; joyUnit＆＃39;

来访问数据源

JPA不保存DB

0 个答案: