我有一個在MySQL數據庫上使用Spring和Hibernate的應用程序。出於某種原因,由於最近幾天,每當我試着堅持我收到以下錯誤我的數據庫中的任何對象:爲什麼這個Hibernate MySQL連接是隻讀的?
java.sql.SQLException: Connection is read-only. Queries leading to data modification are not allowed.*
我不能爲我的生命弄清楚爲什麼會發生。我的應用程序在幾天前運行良好。
我在我的applicationContext.xml文件配置一個SessionFactory對象是這樣的:
<bean id="sessionFactory" lass="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="configLocation"
value="classpath:/hibernate.cfg.xml"/>
<property name="packagesToScan">
<list>
<value>com.domain.domainObjects</value>
</list>
</property>
</bean>
我hibernate.cfg.xml文件看起來是這樣的:
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://{url to db}:3306/{db name}</property>
<property name="connection.username">{db user}</property>
<property name="connection.password">{db password}</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">10</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
<!-- Enable Hibernate's automatic session context management >
<property name="current_session_context_class">thread</property-->
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">update</property>
</session-factory>
</hibernate-configuration>
我使用的是MySQL的/ j conenction版本5.1,休眠版本3.2,彈簧mvc 3.0.5
配置看起來不錯。請添加一個受此影響的示例代碼。另外,如果您可以指定MySQL驅動程序的確切版本,那就太好了。 – jpkrohling 2011-01-10 16:15:44
您是否在使用Transactional註釋?它是否設置爲@Transactional(readOnly = true) – 2011-01-10 17:45:38