Java springmvc和Hibernate内存泄漏
我正在开发一个基于Spring4的网络应用程序,用于管理健身训练。对于持久层,我使用Hibernate4.3.5 到目前为止一切正常,然后我将我的应用程序部署到我的Tomcat服务器上,运行在Synology NAS上,以进行测试。 约2小时后,我从日志中得到以下错误:Java springmvc和Hibernate内存泄漏,java,spring,hibernate,tomcat,spring-mvc,Java,Spring,Hibernate,Tomcat,Spring Mvc,我正在开发一个基于Spring4的网络应用程序,用于管理健身训练。对于持久层,我使用Hibernate4.3.5 到目前为止一切正常,然后我将我的应用程序部署到我的Tomcat服务器上,运行在Synology NAS上,以进行测试。 约2小时后,我从日志中得到以下错误: Jun 17, 2014 1:49:04 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web applicati
Jun 17, 2014 1:49:04 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [/trainingsmanager] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Jun 17, 2014 1:49:04 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/trainingsmanager] appears to have started a threadnamed [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak.
我认为这是我的Hibernate配置或数据类的问题
servlet-context.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"
xmlns:tx="http://www.springframework.org/schema/tx">
<!-- DispatcherServlet Context: defines this servlet's request-processing
infrastructure -->
<!-- Enables the Spring MVC @Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving
up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by @Controllers to .jsp resources
in the /WEB-INF/views directory -->
<beans:bean id="tilesViewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<beans:property name="viewClass">
<beans:value>
org.springframework.web.servlet.view.tiles3.TilesView
</beans:value>
</beans:property>
</beans:bean>
<beans:bean id="tilesConfigurer"
class="org.springframework.web.servlet.view.tiles3.TilesConfigurer">
<beans:property name="definitions">
<beans:list>
<beans:value>/WEB-INF/tiles.xml</beans:value>
</beans:list>
</beans:property>
</beans:bean>
<context:component-scan base-package="de.jupdi.trainingsmanager" />
<context:component-scan base-package="de.jupdi.trainingsmanager.controller" />
<context:component-scan base-package="de.jupdi.trainingsmanager.dao" />
<context:component-scan base-package="de.jupdi.trainingsmanager.entity" />
<context:component-scan base-package="de.jupdi.trainingsmanager.helper" />
<context:component-scan base-package="de.jupdi.trainingsmanager.service" />
<context:component-scan base-package="de.jupdi.trainingsmanager.form" />
<!-- JDBC Data Source. It is assumed you have MySQL running on localhost
port 3306 with username root and blank password. Change below if it's not
the case -->
<beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<beans:property name="driverClassName" value="com.mysql.jdbc.Driver" />
<beans:property name="url"
value="jdbc:mysql://localhost:3306/trainingsmanager" />
<beans:property name="username" value="root" />
<beans:property name="password" value="" />
<beans:property name="validationQuery" value="SELECT 1" />
<beans:property name="removeAbandoned" value="true" />
<beans:property name="removeAbandonedTimeout" value="60" />
</beans:bean>
<!-- Hibernate Session Factory -->
<beans:bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<beans:property name="dataSource" ref="dataSource" />
<beans:property name="packagesToScan">
<beans:array>
<beans:value>de.jupdi.trainingsmanager</beans:value>
</beans:array>
</beans:property>
<beans:property name="hibernateProperties">
<beans:value>
hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.connection.release_mode=auto
</beans:value>
</beans:property>
</beans:bean>
<!-- Hibernate Transaction Manager -->
<beans:bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<beans:property name="sessionFactory" ref="sessionFactory" />
</beans:bean>
<tx:annotation-driven />
<beans:bean id="messageSource"
class="org.springframework.context.support.ResourceBundleMessageSource">
<beans:property name="basename" value="messages" />
</beans:bean>
<beans:bean id="userService"
class="org.springframework.security.core.userdetails.jdbc.JdbcDaoImpl">
<beans:property name="dataSource" ref="dataSource" />
</beans:bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<!-- Own Beans -->
<beans:bean id="routineManager"
class="de.jupdi.trainingsmanager.service.RoutineManagerImpl" />
<beans:bean id="planManager"
class="de.jupdi.trainingsmanager.service.PlanManagerImpl" />
<beans:bean id="trainingManager"
class="de.jupdi.trainingsmanager.service.TrainingManagerImpl" />
<beans:bean id="unitManager"
class="de.jupdi.trainingsmanager.service.UnitManagerImpl" />
<beans:bean id="userManager"
class="de.jupdi.trainingsmanager.service.UserManagerImpl" />
<beans:bean id="resultManager"
class="de.jupdi.trainingsmanager.service.ResultManagerImpl" />
<beans:bean id="roleManager"
class="de.jupdi.trainingsmanager.service.RoleManagerImpl" />
<beans:bean id="routineDAO"
class="de.jupdi.trainingsmanager.dao.RoutineDAOImpl" />
<beans:bean id="unitDAO" class="de.jupdi.trainingsmanager.dao.UnitDAOImpl" />
<beans:bean id="resultDAO" class="de.jupdi.trainingsmanager.dao.ResultDAOImpl" />
<beans:bean id="planDAO" class="de.jupdi.trainingsmanager.dao.PlanDAOImpl" />
<beans:bean id="trainingDAO"
class="de.jupdi.trainingsmanager.dao.TrainingDAOImpl" />
<beans:bean id="userDAO" class="de.jupdi.trainingsmanager.dao.UserDAOImpl" />
<beans:bean id="roleDAO" class="de.jupdi.trainingsmanager.dao.RoleDAOImpl" />
<beans:bean id="customUserDetailsService"
class="de.jupdi.trainingsmanager.service.CustomUserDetailsService" />
</beans:beans>
TrainingManager.java:
package de.jupdi.trainingsmanager.service;
import java.util.Date;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import de.jupdi.trainingsmanager.dao.TrainingDAO;
import de.jupdi.trainingsmanager.entity.TrainingEntity;
import de.jupdi.trainingsmanager.entity.UnitEntity;
@Service
public class TrainingManagerImpl implements TrainingManager {
@Autowired
TrainingDAO trainingDAO;
@Override
@Transactional
public void addTraining(TrainingEntity training) {
trainingDAO.addTraining(training);
}
@Override
@Transactional
public TrainingEntity getTraining(Integer trainingId) {
return trainingDAO.getTraining(trainingId);
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings() {
return trainingDAO.getAllTrainings();
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings(Integer user) {
return trainingDAO.getAllTrainings(user);
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings(Integer user, Date date) {
return trainingDAO.getAllTrainings(user, date);
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings(Integer user, Date dateStart,
Date dateStop) {
return trainingDAO.getAllTrainings(user, dateStart, dateStop);
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings(Integer user, UnitEntity unit) {
return trainingDAO.getAllTrainings(user, unit);
}
@Override
@Transactional
public void deleteTraining(Integer TrainingId) {
trainingDAO.deleteTraining(TrainingId);
}
}
错误。。。已注册JDBC驱动程序[com.mysql.JDBC.driver],但在web应用程序停止时无法注销它。。。它本身并不是很严重。。。但有趣的是之前发生的事情:tomcat在显示此消息之前正在停止应用程序。能否ping localhost.log file.Tranks中出现的异常。添加了日志,但它没有提供更多信息您的应用程序似乎已停止,但在此之前,tomcat服务似乎已停止信息:正在停止服务Catalina。在此之前,您的服务器是否已停止运行。你的内存设置是什么?在jvisualvm附带JDK的情况下,再次尝试运行服务器。下次发生这种情况时,您可以获得内存利用率的可视化信息,甚至可以运行采样器来跟踪堆上创建的多余对象。只需将驱动程序移动到tomcat lib/文件夹,并将其从应用程序中排除即可。
package de.jupdi.trainingsmanager.dao;
import java.util.Date;
import java.util.List;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import de.jupdi.trainingsmanager.entity.PlanEntity;
import de.jupdi.trainingsmanager.entity.TrainingEntity;
import de.jupdi.trainingsmanager.entity.UnitEntity;
public class TrainingDAOImpl implements TrainingDAO {
@Autowired
SessionFactory sessionFactory;
@Override
public void addTraining(TrainingEntity training) {
this.sessionFactory.getCurrentSession().save(training);
}
@Override
public TrainingEntity getTraining(Integer trainingId) {
return (TrainingEntity) this.sessionFactory.getCurrentSession().get(TrainingEntity.class, trainingId);
}
@SuppressWarnings("unchecked")
@Override
public List<TrainingEntity> getAllTrainings() {
return this.sessionFactory.getCurrentSession().createQuery("from TrainingEntity").list();
}
@Override
public void deleteTraining(Integer trainingId) {
this.sessionFactory.getCurrentSession().delete((TrainingEntity) this.sessionFactory.getCurrentSession().load(TrainingEntity.class, trainingId));
}
@SuppressWarnings("unchecked")
@Override
public List<TrainingEntity> getAllTrainings(Integer user) {
return this.sessionFactory.getCurrentSession().createQuery("from TrainingEntity where user="+ user).list();
}
@SuppressWarnings("unchecked")
@Override
public List<TrainingEntity> getAllTrainings(Integer user, Date date) {
return this.sessionFactory.getCurrentSession().createQuery("from TrainingEntity where user="+ user +" and date="+date.toString()).list();
}
@SuppressWarnings("unchecked")
@Override
public List<TrainingEntity> getAllTrainings(Integer user, Date dateStart,
Date dateStop) {
return this.sessionFactory.getCurrentSession().createQuery("from TrainingEntity where user="+ user +" and date is between "+ dateStart.toString() +" and "+ dateStop.toString()).list();
}
@SuppressWarnings("unchecked")
@Override
public List<TrainingEntity> getAllTrainings(Integer user, UnitEntity unit) {
return this.sessionFactory.getCurrentSession().createQuery("from TrainingEntity where user="+ user + " and unit=" + unit.getId()).list();
}
@SuppressWarnings("unchecked")
@Override
public List<TrainingEntity> getAllTrainings(Integer user, PlanEntity plan) {
return this.sessionFactory.getCurrentSession().createQuery("from TrainingEntity where user="+ user + " and plan=" + plan.getId()).list();
}
}
package de.jupdi.trainingsmanager.entity;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="training")
public class TrainingEntity {
@Id
@Column(name="id")
@GeneratedValue(strategy = GenerationType.AUTO)
private int id;
@Column(name="user")
private Integer user;
@Column(name="date")
private Date date;
@Column(name="plan")
private Integer plan;
@Column(name="unit")
private Integer unit;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public Integer getUser() {
return user;
}
public void setUser(Integer user) {
this.user = user;
}
public Date getDate() {
return date;
}
public void setDate(Date date2) {
this.date = date2;
}
public Integer getPlan() {
return plan;
}
public void setPlan(Integer plan) {
this.plan = plan;
}
public Integer getUnit() {
return unit;
}
public void setUnit(Integer unitId) {
this.unit = unitId;
}
}
package de.jupdi.trainingsmanager.service;
import java.util.Date;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import de.jupdi.trainingsmanager.dao.TrainingDAO;
import de.jupdi.trainingsmanager.entity.TrainingEntity;
import de.jupdi.trainingsmanager.entity.UnitEntity;
@Service
public class TrainingManagerImpl implements TrainingManager {
@Autowired
TrainingDAO trainingDAO;
@Override
@Transactional
public void addTraining(TrainingEntity training) {
trainingDAO.addTraining(training);
}
@Override
@Transactional
public TrainingEntity getTraining(Integer trainingId) {
return trainingDAO.getTraining(trainingId);
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings() {
return trainingDAO.getAllTrainings();
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings(Integer user) {
return trainingDAO.getAllTrainings(user);
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings(Integer user, Date date) {
return trainingDAO.getAllTrainings(user, date);
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings(Integer user, Date dateStart,
Date dateStop) {
return trainingDAO.getAllTrainings(user, dateStart, dateStop);
}
@Override
@Transactional
public List<TrainingEntity> getAllTrainings(Integer user, UnitEntity unit) {
return trainingDAO.getAllTrainings(user, unit);
}
@Override
@Transactional
public void deleteTraining(Integer TrainingId) {
trainingDAO.deleteTraining(TrainingId);
}
}
Jun 17, 2014 1:49:04 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-bio-8080"]
Jun 17, 2014 1:49:04 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
Jun 17, 2014 1:49:04 PM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service Catalina
Jun 17, 2014 1:49:04 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [/trainingsmanager] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Jun 17, 2014 1:49:04 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/trainingsmanager] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak.
Jun 17, 2014 1:49:04 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-bio-8080"]
Jun 17, 2014 1:49:04 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["ajp-bio-8009"]
Jun 17, 2014 1:49:04 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-bio-8080"]
Jun 17, 2014 1:49:04 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["ajp-bio-8009"]