Spring AOP JPA

1、建立web应用

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
          http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
           version="2.5">
    <!-- Add Support for Spring -->
    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <!-- jsf额外需要的spring监视器 -->
    <listener>
        <listener-class>
            org.springframework.web.context.request.RequestContextListener
        </listener-class>
    </listener>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring-config.xml</param-value>
    </context-param>
    <!-- log4配置 -->
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>/WEB-INF/classes/log4j.properties</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>
    <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>
    <!-- 字符编码过滤器  -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.xhtml</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.jsf</url-pattern>
    </servlet-mapping>
    <!-- JSF2.0的模式配置，开发模式下会在调试时报更加详细的错误-->

    <context-param>

        <param-name>javax.faces.PROJECT_STAGE</param-name>

        <param-value>Development</param-value>

    </context-param>



    <welcome-file-list>
        <welcome-file>index.jsf</welcome-file>
    </welcome-file-list>


</web-app>

2、配置 sping配置

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <beans xmlns="http://www.springframework.org/schema/beans"
  3        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4        xmlns:context="http://www.springframework.org/schema/context"
  5        xmlns:aop="http://www.springframework.org/schema/aop"
  6        xmlns:tx="http://www.springframework.org/schema/tx"
  7        xmlns:jpa="http://www.springframework.org/schema/data/jpa"
  8        xsi:schemaLocation="http://www.springframework.org/schema/beans
  9         http://www.springframework.org/schema/beans/spring-beans.xsd
 10         http://www.springframework.org/schema/tx
 11         http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
 12           http://www.springframework.org/schema/context
 13           http://www.springframework.org/schema/context/spring-context-3.1.xsd
 14        http://www.springframework.org/schema/aop
 15        http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
 16 
 17        http://www.springframework.org/schema/data/jpa
 18        http://www.springframework.org/schema/data/jpa/spring-jpa-1.0.xsd
 19 
 20 
 21  ">
 22 
 23     <bean
 24             class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
 25         <property name="location">
 26             <value>classpath:config/database/db.properties</value>
 27         </property>
 28     </bean>
 29 
 30     <bean id="DataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
 31         <property name="driverClassName" value="${jdbc.driverClassName}"/>
 32         <property name="url" value="${jdbc.url}"/>
 33         <property name="username" value="${jdbc.username}"/>
 34         <property name="password" value="${jdbc.password}"/>
 35     </bean>
 36     <!--bean id="SessionFactory"
 37           class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
 38 
 39         <property name="dataSource">
 40             <ref bean="DataSource"/>
 41         </property>
 42 
 43         <property name="hibernateProperties">
 44             <props>
 45                 <prop key="hibernate.dialect">${hibernate.dialect}</prop>
 46                 <prop key="hibernate.show_sql">true</prop>
 47                 <prop key="hibernate.connection.url">jdbc:hsqldb:file:E:DB/metaDB.db</prop>
 48                 <prop key="hibernate.connection.driver_class">org.hsqldb.jdbc.JDBCDriver</prop>
 49                 <prop key="hibernate.connection.username">sa</prop>
 50                 <prop key="hibernate.connection.password"></prop>
 51             </props>
 52         </property>
 53         <property name="mappingDirectoryLocations">
 54             <list>
 55                 <value>classpath:com/hantongchao/entity</value>
 56             </list>
 57         </property>
 58         <property name="packagesToScan">
 59             <array>
 60                 <value>com.hantongchao.entity</value>
 61             </array>
 62         </property>
 63 
 64 
 65     </bean-->
 66      <bean id="timeWeaver" class="com.hantongchao.common.ExtInstrumentationLoadTimeWeaver"/>
 67     <context:annotation-config />
 68     <context:component-scan base-package="com.hantongchao.service,com.hantongchao.version,com.hantongchao.common" resource-pattern="**/*.class"
 69                             name-generator="org.springframework.context.annotation.AnnotationBeanNameGenerator"
 70                             use-default-filters="true"
 71                             annotation-config="true" >
 72         <!-- entity 类自动注册
 73         <context:include-filter type="annotation" expression="javax.persistence.Entity"/>
 74        <context:include-filter type="annotation" expression="org.springframework.stereotype.Service"/>
 75         -->
 76     </context:component-scan>
 77     <context:load-time-weaver  aspectj-weaving="autodetect" weaver-class="com.hantongchao.common.ExtInstrumentationLoadTimeWeaver" />
 78     <!-- Enable the configuration of transactional behavior based on annotations -->
 79     <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
 80 
 81     <!-- Transaction Manager is defined -->
 82     <!--bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
 83         <property name="sessionFactory" ref="SessionFactory"/>
 84     </bean-->
 85     <bean id="provider" class="org.hibernate.ejb.HibernatePersistence"/>
 86     <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
 87         <!--property name="dataSource" ref="DataSource" /-->
 88         <property name="persistenceProvider" ref="provider"/>
 89         <!--property name="persistenceUnitName" value="metadata_app_jpa" /-->
 90         <!--property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml" /-->
 91         <property name="loadTimeWeaver" ref="timeWeaver"/>
 92         <!--property name="packagesToScan" value="com.hantongchao.entity" /-->
 93         <property name="jpaDialect" ref="jpaDialect"/>
 94         <property name="jpaVendorAdapter"  ref="HibernateJpaVendorAdapter">
 95 
 96         </property>
 97         </bean>
 98     <bean id="HibernateJpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
 99         <property name="databasePlatform" value="${hibernate.dialect}" />
100         <property name="generateDdl" value="false" />
101     </bean>
102     <bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/>
103         <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager" lazy-init="true">
104             <property name="entityManagerFactory" ref="entityManagerFactory"/>
105         </bean>
106 
107         <tx:advice id="transactionAdvice" transaction-manager="transactionManager">
108             <tx:attributes>
109                 <tx:method name="*"  rollback-for="Exception" />
110                 <tx:method name="insert*" propagation="REQUIRED" />
111                 <tx:method name="del*" propagation="REQUIRED" />
112                 <tx:method name="update*" propagation="REQUIRED" />
113 
114                 <tx:method name="save*" propagation="REQUIRED" />
115                 <tx:method name="create*" propagation="REQUIRED" />
116                 <tx:method name="*" read-only="true" />
117             </tx:attributes>
118         </tx:advice>
119     <aop:aspectj-autoproxy/>
120     <aop:config>
121         <aop:aspect ref="versionAspect">
122             <aop:pointcut id="versionCut" expression="execution(* com.hantongchao.service.*.*(..))" />
123             <aop:before pointcut-ref="versionCut" method="before" />
124             <aop:around pointcut-ref="versionCut" method="around" />
125         </aop:aspect>
126     </aop:config>
127     <aop:config>
128         <aop:pointcut id="businessService" expression="execution(* com.hantongchao.service.*.*(..))" />
129         <aop:advisor advice-ref="transactionAdvice" pointcut-ref="businessService" />
130     </aop:config>
131 
132 
133 
134     <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"/>
135     <!-- 需要在 <beans> 标签中增加对 jpa 命名空间的引用 -->
136     <jpa:repositories   base-package="com.hantongchao.repository" transaction-manager-ref="transactionManager"
137                         entity-manager-factory-ref="entityManagerFactory"/>
138 
139 <bean id="entityPatten" class="java.lang.String">
140     <constructor-arg value="com.hantongchao.entity.*"/>
141 </bean>
142 <bean id="entityMethodList"    class="java.util.ArrayList">
143 
144 </bean>
145     <!--bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
146         <property name="viewClass">
147             <value>
148                 org.springframework.web.servlet.view.JstlView
149             </value>
150         </property>
151         <property name="prefix">
152             <value>/WEB-INF/jsp/</value>
153         </property>
154         <property name="suffix">
155             <value>.jsp</value>
156         </property>
157     </bean-->
158 </beans>

View Code

3、建立 service

package com.hantongchao.service;

import com.hantongchao.entity.UserEntity;

import java.util.List;

/**
 * Created by han on 14-3-7.
 */
public interface IUserService {
    public List<UserEntity> getAll();
    public UserEntity save(UserEntity userEntity);
    public void deleteAll();
}

View Code

package com.hantongchao.service.imp;

import com.hantongchao.entity.AccountEntity;
import com.hantongchao.entity.UserEntity;

import com.hantongchao.mbean.UserEntityManagedBean;
import com.hantongchao.repository.IAccountDao;
import com.hantongchao.repository.IUserDao;
import com.hantongchao.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


import java.util.List;

/**
 * Created with IntelliJ IDEA.
 * User: han
 * Date: 14-3-5
 * Time: 上午9:41
 * To change this template use File | Settings | File Templates.
 */

@Service
public class UserService implements IUserService {
    @Autowired
  private IUserDao userDao;
    @Autowired
  private IAccountDao accountDao;
    @Override
    public List<UserEntity> getAll(){
        List<UserEntity> list = userDao.findAll();
        return list;

    }
    @Override
public UserEntity save(UserEntity userEntity){

    userDao.save(userEntity);
    return  userEntity;
}
public void deleteAll(){

     userDao.deleteAll();
}
}

View Code

4、DAO

package com.hantongchao.repository;

import com.hantongchao.entity.UserEntity;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;

/**
 * Created by han on 14-3-7.
 */
@Repository("userDao")
public interface IUserDao extends MyJpaRepository <UserEntity, Integer> {

}

View Code

4、entity

package com.hantongchao.entity;

import javax.persistence.*;
import java.math.BigInteger;
import java.sql.Timestamp;
import java.util.HashSet;
import java.util.Set;

/**
 * Created by han on 14-3-6.
 */
@Entity
@Table(name = "USER", schema = "PUBLIC", catalog = "PUBLIC")
public class UserEntity  implements VersionEntity {
    private BigInteger user_id;
    private String name;
    private String surname;
    private Set<AccountEntity> accountEntities = new HashSet<AccountEntity>();

    private Timestamp startdate;
    private Timestamp enddate;
    private  BigInteger versionid;

    @Basic
    @Column(name = "USER_ID",nullable = true)
    public BigInteger getUser_id() {
        return user_id;
    }

    public void setUser_id(BigInteger user_id) {
        this.user_id = user_id;
    }

    @Basic
    @Column(name = "NAME", nullable = false, insertable = true, updatable = true, length = 45, precision = 0)
    public String getName() {
        return name;
    }

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

    @Basic
    @Column(name = "SURNAME", nullable = false, insertable = true, updatable = true, length = 45, precision = 0)
    public String getSurname() {
        return surname;
    }

    public void setSurname(String surname) {
        this.surname = surname;
    }

    @OneToMany( cascade = (CascadeType.ALL),fetch=FetchType.EAGER ,mappedBy = "user")
    public Set<AccountEntity> getAccountEntities() {
        return accountEntities;
    }

    public void setAccountEntities(Set<AccountEntity> accountEntities) {
        this.accountEntities = accountEntities;
    }

    public UserEntity addAccount(AccountEntity accountEntity){
        accountEntity.setUser(this);
        this.getAccountEntities().add(accountEntity);
        return this;
    }



    @Basic
    @Column(name = "STARTDATE")
    public Timestamp getStartdate() {
        return startdate;
    }

    public void setStartdate(Timestamp startdate) {
        this.startdate = startdate;
    }

    @Basic
    @Column(name = "ENDDATE")
    public Timestamp getEnddate() {
        return enddate;
    }

    public void setEnddate(Timestamp enddate) {
        this.enddate = enddate;
    }

    @Id
    @Column(name = "VERSIONID")
    @GeneratedValue(strategy = GenerationType.TABLE,generator="userIdGen")
    @TableGenerator(name="userIdGen",allocationSize = 1)
    public BigInteger getVersionid() {
        return versionid;
    }

    public void setVersionid(BigInteger versionid) {
        this.versionid = versionid;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        UserEntity that = (UserEntity) o;

        if (user_id != that.user_id) return false;
        if (enddate != null ? !enddate.equals(that.enddate) : that.enddate != null) return false;
        if (name != null ? !name.equals(that.name) : that.name != null) return false;
        if (startdate != null ? !startdate.equals(that.startdate) : that.startdate != null) return false;
        if (surname != null ? !surname.equals(that.surname) : that.surname != null) return false;
        if (versionid != null ? !versionid.equals(that.versionid) : that.versionid != null) return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = (user_id!=null?user_id.intValue():0);
        result = 31 * result + (name != null ? name.hashCode() : 0);
        result = 31 * result + (surname != null ? surname.hashCode() : 0);
        result = 31 * result + (startdate != null ? startdate.hashCode() : 0);
        result = 31 * result + (enddate != null ? enddate.hashCode() : 0);
        result = 31 * result + (versionid != null ? versionid.hashCode() : 0);
        return result;
    }

    @Override
    public BigInteger Key() {
        return this.getUser_id();
    }
}

View Code

5、JPA

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">

    <persistence-unit name="metadata_app_jpa" transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>



        <properties>
            <property name="hibernate.max_fetch_depth" value="3"/>
            <property name="hibernate.jdbc.fetch_size" value="50"/>
            <property name="hibernate.jdbc.batch_size" value="50"/>
            <property name="hibernate.show_sql" value="true"/>
            <property name="hibernate.format_sql" value="false"/>
            <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>
            <property name="hibernate.connection.url" value="jdbc:hsqldb:file:E:DB/metaDB.db"/>
            <property name="hibernate.connection.driver_class" value="org.hsqldb.jdbc.JDBCDriver"/>
            <property name="hibernate.connection.username" value="sa"/>
            <property name="hibernate.connection.password" value=""/>
            <property name="hibernate.ejb.entitymanager_factory_name" value="entityManagerFactory"/>
        </properties>
    </persistence-unit>

</persistence>

View Code

读取配置文件

<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
<value>classpath:config/database/db.properties</value>
</property>
</bean>

<context:annotation-config />
<context:component-scan base-package="com.hantongchao.service,com.hantongchao.version,com.hantongchao.common" resource-pattern="**/*.class"
name-generator="org.springframework.context.annotation.AnnotationBeanNameGenerator"
use-default-filters="true"
annotation-config="true" >

</context:component-scan>

注解和扫描bean

<aop:aspectj-autoproxy/>
<aop:config>
<aop:aspect ref="versionAspect">
<aop:pointcut id="versionCut" expression="execution(* com.hantongchao.service.*.*(..))" />
<aop:before pointcut-ref="versionCut" method="before" />
<aop:around pointcut-ref="versionCut" method="around" />
</aop:aspect>
</aop:config>
<aop:config>
<aop:pointcut id="businessService" expression="execution(* com.hantongchao.service.*.*(..))" />
<aop:advisor advice-ref="transactionAdvice" pointcut-ref="businessService" />
</aop:config>

两个AOP一个是事务处理，一个准备做版本管理

 public Object around(ProceedingJoinPoint jp) throws Throwable {
        System.out.println("Spring AOP: Around advice");
        Signature signature= jp.getSignature();
        String declaringTypeName= signature.getDeclaringTypeName();
        String name= signature.getName();
       Object  []  args=jp.getArgs();
        if(args.length>0){
            System.out.print("Arguments passed: ");
            for (int i = 0; i < args.length; i++) {
                System.out.print("Arg"+(i+1)+":"+args[i]);
                String className=args[i].getClass().getCanonicalName();
                 if( this.P.matcher(className).matches()){
                     Object classz=args[i];
                        if (name=="save")
                        {
                         //  VersionEntity entity=(VersionEntity)args[i];
                         //  VersionEntity old= entity.getOldEntity();
                       //  if( !CompareUtil.compare(entity,old))
                      /* {
                             if(entity.getEnddate()==null) entity.setEnddate(new Timestamp(9999,12,31,12,59,59,59)); //insert

                             entity.setEnddate(new Timestamp(Calendar.getInstance().getTimeInMillis()));
                             jp.proceed(args);
                             entity.setVersionid(BigInteger.valueOf(entity.getVersionid().longValue() +1));

                             entity.setStartdate(entity.getEnddate());
                             entity.setEnddate(new Timestamp(9999,12,31,12,59,59,59)); //insert
                            return jp.proceed(args);

                          }
*/
                        }


                 };
            }
        }

View Code

还没有想好如何完成数据表的版本管理，只是测试了weaver是可行了能够获得参数信息，如果判断是保存。。

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原文地址：https://www.cnblogs.com/cndavy/p/3625848.html