Hibernate 休眠缓存错误

Hibernate 休眠缓存错误,hibernate,caching,Hibernate,Caching,Employee.java public class Employee { private int id; private String firstName; private String lastName; private int salary; public Employee() {} public Employee(String fname, String lname, int salary) { this.fi

Employee.java

    public class Employee { 
    private int id; 
    private String firstName; 
    private String lastName; 
    private int salary; 
    public Employee() {} 
    public Employee(String fname, String lname, int salary) { 
    this.firstName = fname; 
    this.lastName = lname; 
    this.salary = salary; 
    } 
    public int getId() { 
    return id; 
    } 
    public void setId( int id ) { 
    this.id = id; 
    } 
    public String getFirstName() { 
    return firstName; 
    } 
    public void setFirstName( String first_name ) { 
    this.firstName = first_name; 
    } 
    public String getLastName() { 
    return lastName; 
    } 
    public void setLastName( String last_name ) { 
    this.lastName = last_name; 
    } 
    public int getSalary() { 
    return salary; 
    } 
    public void setSalary( int salary ) { 
    this.salary = salary; 
    } 
    }

ManageEmployee.java(主)


hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration PUBLIC  "-//Hibernate/Hibernate Configuration DTD .0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">


<hibernate-configuration>
    <session-factory>
        <!-- Database connection settings -->
        <property name="hibernate.connection.driver_class"> com.mysql.jdbc.Driver<property>
        <property name="connection.url">jdbc:mysql://localhost:3306/test</property>
        <property name="connection.username">********</property>
        <property name="connection.password">********</property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        <!-- Enable/Disable the second-level cache  -->
        <property name="cache.use_second_level_cache">true</property>

        <!-- Specify 2nd level cache class_provider -->
        <property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider </property>


        <!-- Echo all executed SQL to stdout -->
         <property name="show_sql">true</property> 

        <!-- Drop the existing tables and create new one -->
        <property name="hbm2ddl.auto">create</property>


        <!-- Mention here all the model classes along with their package name -->
        <mapping resource="Employee.hbm.xml"/> 

    </session-factory>
</hibernate-configuration>
<?xml version="1.0" encoding="utf-8"?> 
<!DOCTYPE hibernate-mapping PUBLIC 
"-//Hibernate/Hibernate Mapping DTD//EN" 
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> 

<hibernate-mapping> 

<class name="Employee" table="EMPLOYEE"> 
<meta attribute="class-description"> 
This class contains the employee detail. 
</meta> 
<cache usage="read-write"/>
<id name="id" type="int" column="id"> 
<generator class="native"/> 
</id> 
<property name="firstName" column="first_name" type="string"/> 
<property name="lastName" column="last_name" type="string"/> 
<property name="salary" column="salary" type="int"/> 
</class> 

</hibernate-mapping> 
<?xml version="1.0" encoding="UTF-8"?>

<diskStore path="java.io.tmpdir"/> 

<defaultCache 
maxElementsInMemory="1000" 
eternal="false" 
timeToIdleSeconds="120" 
timeToLiveSeconds="120" 
overflowToDisk="true" 
/> 

<cache name="Employee" 
maxElementsInMemory="500" 
eternal="true" 
timeToIdleSeconds="0" 
timeToLiveSeconds="0" 
overflowToDisk="false" 
/> 

com.mysql.jdbc.Driver
jdbc:mysql://localhost:3306/test
********
********
1.
org.hibernate.dialogue.mysqldialogue
真的
org.hibernate.cache.EhCacheProvider
真的
创造

Employee.hbm.xml

<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration PUBLIC  "-//Hibernate/Hibernate Configuration DTD .0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">


<hibernate-configuration>
    <session-factory>
        <!-- Database connection settings -->
        <property name="hibernate.connection.driver_class"> com.mysql.jdbc.Driver<property>
        <property name="connection.url">jdbc:mysql://localhost:3306/test</property>
        <property name="connection.username">********</property>
        <property name="connection.password">********</property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        <!-- Enable/Disable the second-level cache  -->
        <property name="cache.use_second_level_cache">true</property>

        <!-- Specify 2nd level cache class_provider -->
        <property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider </property>


        <!-- Echo all executed SQL to stdout -->
         <property name="show_sql">true</property> 

        <!-- Drop the existing tables and create new one -->
        <property name="hbm2ddl.auto">create</property>


        <!-- Mention here all the model classes along with their package name -->
        <mapping resource="Employee.hbm.xml"/> 

    </session-factory>
</hibernate-configuration>
<?xml version="1.0" encoding="utf-8"?> 
<!DOCTYPE hibernate-mapping PUBLIC 
"-//Hibernate/Hibernate Mapping DTD//EN" 
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> 

<hibernate-mapping> 

<class name="Employee" table="EMPLOYEE"> 
<meta attribute="class-description"> 
This class contains the employee detail. 
</meta> 
<cache usage="read-write"/>
<id name="id" type="int" column="id"> 
<generator class="native"/> 
</id> 
<property name="firstName" column="first_name" type="string"/> 
<property name="lastName" column="last_name" type="string"/> 
<property name="salary" column="salary" type="int"/> 
</class> 

</hibernate-mapping> 
<?xml version="1.0" encoding="UTF-8"?>

<diskStore path="java.io.tmpdir"/> 

<defaultCache 
maxElementsInMemory="1000" 
eternal="false" 
timeToIdleSeconds="120" 
timeToLiveSeconds="120" 
overflowToDisk="true" 
/> 

<cache name="Employee" 
maxElementsInMemory="500" 
eternal="true" 
timeToIdleSeconds="0" 
timeToLiveSeconds="0" 
overflowToDisk="false" 
/> 

此类包含员工详细信息。

ehcache.xml

<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration PUBLIC  "-//Hibernate/Hibernate Configuration DTD .0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">


<hibernate-configuration>
    <session-factory>
        <!-- Database connection settings -->
        <property name="hibernate.connection.driver_class"> com.mysql.jdbc.Driver<property>
        <property name="connection.url">jdbc:mysql://localhost:3306/test</property>
        <property name="connection.username">********</property>
        <property name="connection.password">********</property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        <!-- Enable/Disable the second-level cache  -->
        <property name="cache.use_second_level_cache">true</property>

        <!-- Specify 2nd level cache class_provider -->
        <property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider </property>


        <!-- Echo all executed SQL to stdout -->
         <property name="show_sql">true</property> 

        <!-- Drop the existing tables and create new one -->
        <property name="hbm2ddl.auto">create</property>


        <!-- Mention here all the model classes along with their package name -->
        <mapping resource="Employee.hbm.xml"/> 

    </session-factory>
</hibernate-configuration>
<?xml version="1.0" encoding="utf-8"?> 
<!DOCTYPE hibernate-mapping PUBLIC 
"-//Hibernate/Hibernate Mapping DTD//EN" 
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> 

<hibernate-mapping> 

<class name="Employee" table="EMPLOYEE"> 
<meta attribute="class-description"> 
This class contains the employee detail. 
</meta> 
<cache usage="read-write"/>
<id name="id" type="int" column="id"> 
<generator class="native"/> 
</id> 
<property name="firstName" column="first_name" type="string"/> 
<property name="lastName" column="last_name" type="string"/> 
<property name="salary" column="salary" type="int"/> 
</class> 

</hibernate-mapping> 
<?xml version="1.0" encoding="UTF-8"?>

<diskStore path="java.io.tmpdir"/> 

<defaultCache 
maxElementsInMemory="1000" 
eternal="false" 
timeToIdleSeconds="120" 
timeToLiveSeconds="120" 
overflowToDisk="true" 
/> 

<cache name="Employee" 
maxElementsInMemory="500" 
eternal="true" 
timeToIdleSeconds="0" 
timeToLiveSeconds="0" 
overflowToDisk="false" 
/> 


错误 Failed to create sessionFactory object.org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.cache.spi.RegionFactory] Exception in thread "main" java.lang.ExceptionInInitializerError at ManageEmployee.main(ManageEmployee.java:17) Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.cache.spi.RegionFactory] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:261) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:225) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:295) at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2442) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2438) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1855) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928) at ManageEmployee.main(ManageEmployee.java:14) Caused by: org.hibernate.HibernateException: could not instantiate RegionFactory [net.sf.ehcache.hibernate.EhCacheRegionFactory] at org.hibernate.cache.internal.RegionFactoryInitiator.initiateService(RegionFactoryInitiator.java:101) at org.hibernate.cache.internal.RegionFactoryInitiator.initiateService(RegionFactoryInitiator.java:46) at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:105) at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:251) ... 8 more Caused by: org.hibernate.boot.registry.selector.spi.StrategySelectionException: Unable to resolve name [net.sf.ehcache.hibernate.EhCacheRegionFactory] as strategy [org.hibernate.cache.spi.RegionFactory] at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.selectStrategyImplementor(StrategySelectorImpl.java:128) at org.hibernate.cache.internal.RegionFactoryInitiator.initiateService(RegionFactoryInitiator.java:87) ... 11 more

无法创建sessionFactory object.org.hibernate.service.spi.ServiceException:无法创建请求的服务[org.hibernate.cache.spi.RegionFactory] 线程“main”java.lang.ExceptionInInitializeError中出现异常 位于ManageEmployee.main(ManageEmployee.java:17) 原因:org.hibernate.service.spi.ServiceException:无法创建请求的服务[org.hibernate.cache.spi.RegionFactory] 位于org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:261) 位于org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:225) 位于org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206) 在org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:295)上 位于org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2442) 位于org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2438) 位于org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1855) 位于org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928) 位于ManageEmployee.main(ManageEmployee.java:14) 原因:org.hibernate.HibernateException:无法实例化RegionFactory[net.sf.ehcache.hibernate.EhCacheRegionFactory] 位于org.hibernate.cache.internal.RegionFactoryInitiator.initiateService(RegionFactoryInitiator.java:101) 位于org.hibernate.cache.internal.RegionFactoryInitiator.initiateService(RegionFactoryInitiator.java:46) 位于org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:105) 位于org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:251) ... 8个以上 原因:org.hibernate.boot.registry.selector.spi.StrategySelectionException:无法将名称[net.sf.ehcache.hibernate.EhCacheRegionFactory]解析为策略[org.hibernate.cache.spi.RegionFactory] 位于org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.selectStrategyImplementor(StrategySelectorImpl.java:128) 位于org.hibernate.cache.internal.RegionFactoryInitiator.initiateService(RegionFactoryInitiator.java:87) ... 还有11个

注意:XML文件无法发布,因此我必须在<和>之间留出空间,对此表示抱歉。
期待清除此错误。

提前感谢:-)

我已经将下面提到的JAR添加到我的hibernate项目中。如果我遗漏了什么,请告诉我。 antlr cglib 公共注释 公地收藏 公用记录 dom4j 一些冬眠罐 log4j myaql java连接器 slf4j api 沙兰
xerces

除了检查是否存在特定的JAR之外,还要检查二级缓存配置

二级缓存配置:

<property name="hibernate.cache.use_second_level_cache">true</property>
<property name="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</property>
true
org.hibernate.cache.ehcache.EhCacheRegionFactory

第一步是在项目中添加这些必需的JAR:

ehcache-2.10.3.jarslf4j-api-1.7.7.jarhibernate-ehcache-5.2.10.Final.jar

并使用以下步骤将其添加到生成路径: 选择所有jar文件,然后右键单击选择并选择buildpath->addtobuildpath

之后,检查

<property name="hibernate.cache.use_second_level_cache">true</property>
<property name="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</property>

您在构建路径中添加了哪些JAR?在添加了ehcache和hibernate ehchabe依赖项之后,这就起到了作用