Article From:https://www.cnblogs.com/helloworldlx/p/9218241.html
================================================web.xml==============================================
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:spring.xml</param-value>
    </context-param>
    <!--Configure the listener -->< listener>< listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!--Configuring OpenSessionInView needs to be configured before struts filter, otherwise it will be filtered out of -->.< filter>< filter-name> opeNSessionInView< /filter-name>< filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>openSessionInView</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- StrutsCore filter -->< filter>< filter-name> struts2< /filter-name>< FIlter-class> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter< /filter-clasS>< /filter>< filter-mapping>< filter-name> struts2< /filter-nAme>< url-pattern> /*< /url-pattern>< /filter-mapping>< /web-app&gT;



================================================spring.xml==============================================
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">

<!--Open the annotation -->
<context:annotation-config/>
<!--Tell spring which packet to go to find the annotation -->
<context:component-scan base-package="com.ibeifeng.ssh"/>
<aop:aspectj-autoproxy/>

<bean name="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<!--Configuring database information -->
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/houserent"/>
<property name="username" value="root"/>
<property name="password" value="123456"/>
</bean>

<!--Configuring session information -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource"/>
<!--Because we use annotation to get attributes here, we use packagesToScan.
If you use hibernate.cfg.xml in Hibernate, use mappingResources here.
The function is to specify the model--> from which package to find annotations.
<property name="packagesToScan">
<value>com.ibeifeng.ssh.model</value>
</property>
<!--Configure the hibernate property -->
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>

<bean id="txManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<!--Injection of sessionFactory-->
<!--<property name="dataSource" ref="myDataSource"/>-->
<property name="sessionFactory" ref="sessionFactory"/>
</bean>

<!--Configure transaction enhancements, and which rules are used by which -->
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<!--*The number indicates that all methods are added to the transaction -->
<tx:method name="*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>

<!--springThe implementation of the transaction is based on the AOP mode -->
<aop:config>
<!--Define the pointcut -->
<aop:pointcut id="allMethod" expression="execution(* com.ibeifeng.ssh.dao.*.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="allMethod"/>
</aop:config>
</beans>




================================================struts.xml==============================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.devMode" value="true"/>
<constant name="struts.enable.DynamicMethodInvocation" value="true"/>
<package name="default" extends="struts-default">

<!--Use wildcard -->
<action name="*_*" class="{1}Controller" method="{2}">
<result name="success">{1}/{2}.jsp</result>
</action>
</package>
</struts>




================================================Employee.java==============================================
package com.ssh.model;

import org.hibernate.annotations.GenericGenerator;

import javax.persistence.*;

@Entity
@Table(name = "t_emp")
public class Employee {
private int id;
private String name;
private String salary;

public Employee(){}

public Employee(int id, String name, String salary) {
this.id = id;
this.name = name;
this.salary = salary;
}

@Id
@GenericGenerator(name = "increment", strategy = "increment")
@GeneratedValue(generator = "increment")
public int getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

@Column(name = "name")
public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

@Column(name = "salary")
public String getSalary() {
return salary;
}

public void setSalary(String salary) {
this.salary = salary;
}

@Override
public String toString() {
return "Employee{" +
"id=" + id +
", name='" + name + '\'' +
", salary='" + salary + '\'' +
'}';
}
}




================================================Group.java==============================================
package com.ssh.model;

import org.hibernate.annotations.GenericGenerator;
import javax.persistence.*;

@Entity
@Table(name="t_group")
public class Group {
private int id;
private String name;

public Group(){}

public Group(int id, String name) {
this.id = id;
this.name = name;
}

@Id
@GenericGenerator(name = "increment",strategy = "increment")
@GeneratedValue(generator = "increment")
public int getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

@Column(name="name")
public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

@Override
public String toString() {
return "Group{" +
"id=" + id +
", name='" + name + '\'' +
'}';
}
}



================================================BaseDao.java==============================================
package com.ssh.dao;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.query.Query;

import javax.annotation.Resource;
import java.lang.reflect.ParameterizedType;
import java.util.List;

public class BaseDao<T> implements IBaseDao<T> {
private SessionFactory sessionFactory;

@Resource
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}

public Session getSession(){
return sessionFactory.openSession();
}

@Override
public void add(T t) {
getSession().save(t);
}

@Override
public void update(T t) {
getSession().update(t);
}

@Override
public void delete(int id) {
getSession().delete(id);
}

public Class<T> getCla(){
return (Class<T>)(((ParameterizedType)
(this.getClass().getGenericSuperclass()))
.getActualTypeArguments()[0]);
}

@Override
public T load(int id) {
/*Since we need to give a class as a parameter in the load () method, we still do not know which class it is, so we need it.
A method to get the class getCla ()
*/
//If you use the load () method here, you need to configure the OpenSessionInView filter in web.xml. If you use get (), do not.
//return this.getHibernateTemplate().get(getCla(),id);
return getSession().load(getCla(),id);
}

//Query set
@Override
public List<T> list(String hql) {
Query query = getSession().createQuery(hql);
return query.list();
}

//Set query with parameters
@Override
public List<T> list(String hql, Object[] params) {
Query query = getSession().createQuery(hql);
//Determine whether the parameters are empty
if(params != null && params.length > 0){
for(int i=0; i<params.length; i++){
query.setParameter(i,params[i]);
}
}
return query.list();
}

//Paging query with parameters
@Override
public List<T> list(String hql, Object[] params, int pageIndex, int pageSize) {
Query query = getSession().createQuery(hql);
//Determine whether the parameters are empty
if(params != null && params.length > 0) {
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
}
return query.setFirstResult(pageIndex).setMaxResults(pageSize).list();
}

//Get the total number of records
@Override
public Long count(String hql) {
return (Long) getSession().createQuery(hql).uniqueResult();
}

@Override
public Long count(String hql, Object[] params) {
Query query = getSession().createQuery(hql);
//Determine whether the parameters are empty
if(params != null && params.length > 0) {
for (int i = 0; i < params.length; i++) {
query.setParameter(i, params[i]);
}
}
return (Long)query.uniqueResult();
}
}




================================================EmpDao.java==============================================
package com.ssh.dao;

import com.ssh.model.Employee;

public class EmpDao extends BaseDao<Employee> implements IEmpDao {
}





================================================GroupDao.java==============================================
package com.ssh.dao;
import com.ssh.model.Group;
import org.springframework.stereotype.Repository;

@Repository
public class GroupDao extends BaseDao<Group> implements IGroupDao {

}





================================================IBaseDao.java==============================================
package com.ssh.dao;

import java.util.List;

public interface IBaseDao<T> {
public void add(T t);
public void update(T t);
public void delete(int id);
public T load(int id);
public List<T> list(String hql);
public List<T> list(String hql, Object[] params);
public List<T> list(String hql, Object[] params, int pageIndex, int pageSize);
public Long count(String hql);
public Long count(String hql, Object[] params);
}




================================================IEmpDao.java==============================================
package com.ssh.dao;

import com.ssh.model.Employee;

public interface IEmpDao extends IBaseDao<Employee> {
}




================================================IGroupDao.java==============================================
package com.ssh.dao;

import com.ssh.model.Group;

public interface IGroupDao extends IBaseDao<Group>{
}





================================================GroupService.java==============================================
package com.ssh.service;

import com.ssh.dao.IGroupDao;
import com.ssh.model.Group;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;

@Service
public class GroupService implements IGroupService {
private IGroupDao groupDao;

@Resource
public void setGroupDao(IGroupDao groupDao) {
this.groupDao = groupDao;
}

@Override
public void save(Group group) {
groupDao.add(group);
}

@Override
public Group load(int id) {
return null;
}

@Override
public List<Group> list(){
//The class name can only be written after the from here
String hql = "from Group";
return groupDao.list(hql);
}

@Override
public List<Group> list(int pageIndex, int pageSize) {
String hql = "from Group";
return groupDao.list(hql,null,pageIndex,pageSize);
}
}





================================================IGroupService.java==============================================
package com.ssh.service;

import com.ssh.model.Group;
import java.util.List;

public interface IGroupService {
public void save(Group group);
public Group load(int id);
//GroupServiceWhich methods do you need to use as long as you add them in the interface?
public List<Group> list();
public List<Group> list(int pageIndex, int pageSize);
}





================================================GroupController.java==============================================
package com.ssh.controller;

import com.ssh.model.Group;
import com.ssh.service.IGroupService;
import com.opensymphony.xwork2.ActionContext;
import org.springframework.stereotype.Controller;
import javax.annotation.Resource;
import java.util.List;

@Controller("groupController")
public class GroupController {
private IGroupService groupService;
//What classes of data need to be saved, and what classes are defined here to receive data?
private Group group;
private int pageIndex=1;
private int pageSize=2;

public int getPageIndex() {
return pageIndex;
}

public void setPageIndex(int pageIndex) {
this.pageIndex = pageIndex;
}

public int getPageSize() {
return pageSize;
}

public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}

public Group getGroup() {
return group;
}

public void setGroup(Group group) {
this.group = group;
}

@Resource
public void setGroupService(IGroupService groupService) {
this.groupService = groupService;
}

public String add(){
groupService.save(group);
return "success";
}

//Paging query
public String list(){
// List<Group> groups = groupService.list();
List<Group> groups = groupService.list(pageIndex,pageSize);
ActionContext.getContext().put("group",groups);
return "success";
}
}



===========================The problem is = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

java.lang.NullPointerException
com.ibeifeng.ssh.dao.BaseDao.getSession(BaseDao.java:13)
com.ibeifeng.ssh.dao.BaseDao.list(BaseDao.java:50)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:197)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction

(TransactionAspectSupport.java:294)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
com.sun.proxy.$Proxy37.list(Unknown Source)
com.ibeifeng.ssh.service.GroupService.list(GroupService.java:31)
com.ibeifeng.ssh.controller.GroupController.add(GroupController.java:31)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:897)
ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1299)
ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68)
com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:117)
com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:108)
ognl.OgnlRuntime.callMethod(OgnlRuntime.java:1375)
ognl.ASTMethod.getValueBody(ASTMethod.java:91)
ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
ognl.SimpleNode.getValue(SimpleNode.java:258)
ognl.Ognl.getValue(Ognl.java:470)
ognl.Ognl.getValue(Ognl.java:434)
com.opensymphony.xwork2.ognl.OgnlUtil$3.execute(OgnlUtil.java:362)
com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecuteMethod(OgnlUtil.java:414)
com.opensymphony.xwork2.ognl.OgnlUtil.callMethod(OgnlUtil.java:360)
com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:430)
com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:290)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
org.apache.struts2.interceptor.DeprecationInterceptor.intercept(DeprecationInterceptor.java:41)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:168)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept

(AnnotationValidationInterceptor.java:76)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:125)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:253)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:575)
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
org.springframework.orm.hibernate5.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:152)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:1025)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1139)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2555)
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2544)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Unknown Source)

Solution: in the BaseDao method, there is a problem with the statement “return sessionFactory.openSession ()” in the error prompt. After debugging, it is found that there is no registration.
sessionFactoryThe reason for variables is to add getter&amp to sessionFactory; setter method.






 

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