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我在Spring世界很新。我使用Spring 3.2和Hibernate 4.1.9開發了一個DAO，但我注意到了一件奇怪的事情。獲取軟件包org.springframework.transaction.annotation在打包應用程序時不存在錯誤
與Spring相關的所有使用的依賴關係都屬於3.2.1版本，除了與彈簧模塊有關。對於這個模塊我必須使用3.2.0版本，因爲如果我使用的DAO類實現3.2.1不覺得這是進口：org.springframework.transaction.annotation.Transactional
這是我原來的pom.xml文件（即工作做好）：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.andrea.myexample</groupId>
<artifactId>HibernateOnSpring</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>HibernateOnSpring</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- Dipendenze di Spring Framework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
<dependency> <!-- Usata da Hibernate 4 per LocalSessionFactoryBean -->
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.2.0.RELEASE</version>
</dependency>
<!-- Dipendenze per AOP -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2.2</version>
</dependency>
<!-- Dipendenze per Persistence Managment -->
<dependency> <!-- Apache BasicDataSource -->
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency> <!-- MySQL database driver -->
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.23</version>
</dependency>
<dependency> <!-- Hibernate -->
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.9.Final</version>
</dependency>
</dependencies>
</project>
，這是我PersonDAOImpl類（實現我的具體的DAO類）：
package org.andrea.myexample.HibernateOnSpring.dao;
import java.util.List;
import org.andrea.myexample.HibernateOnSpring.entity.Person;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
import org.springframework.transaction.annotation.Transactional;
public class PersonDAOImpl implements PersonDAO {
// Factory per la creazione delle sessioni di Hibernate:
private static SessionFactory sessionFactory;
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
// CREATE CRUD Operation:
@Transactional(readOnly = false)
public Integer addPerson(Person p) {
System.out.println("Inside addPerson()");
Session session = sessionFactory.openSession();
Transaction tx = null;
Integer personID = null;
try {
tx = session.beginTransaction();
personID = (Integer) session.save(p);
tx.commit();
} catch (HibernateException e) {
if (tx != null)
tx.rollback();
e.printStackTrace();
} finally {
session.close();
}
return personID;
}
// READ CRUD Operation (legge un singolo record avente uno specifico id):
public Person getById(int id) {
System.out.println("Inside getById()");
Session session = sessionFactory.openSession();
Transaction tx = null;
Person retrievedPerson = null;
try {
tx = session.beginTransaction();
retrievedPerson = (Person) session.get(Person.class, id);
tx.commit();
}catch (HibernateException e) {
if (tx != null)
tx.rollback();
e.printStackTrace();
} finally {
session.close();
}
return retrievedPerson;
}
// READ CRUD Operation (recupera la lista di tutti i record nella tabella):
@SuppressWarnings("unchecked")
public List<Person> getPersonsList() {
System.out.println("Inside getPersonsList()");
Session session = sessionFactory.openSession();
Transaction tx = null;
List<Person> personList = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(Person.class);
personList = criteria.list();
System.out.println("personList: " + personList);
tx.commit();
}catch (HibernateException e) {
if (tx != null)
tx.rollback();
e.printStackTrace();
} finally {
session.close();
}
return personList;
}
// DELETE CRUD Operation (elimina un singolo record avente uno specifico id):
public void delete(int id) {
System.out.println("Inside delete()");
Session session = sessionFactory.openSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
Person personToDelete = getById(id);
session.delete(personToDelete);
tx.commit();
}catch (HibernateException e) {
if (tx != null)
tx.rollback();
e.printStackTrace();
} finally {
session.close();
}
}
@Transactional
public void update(Person personToUpdate) {
System.out.println("Inside update()");
Session session = sessionFactory.openSession();
Transaction tx = null;
try {
System.out.println("Insite update() method try");
tx = session.beginTransaction();
session.update(personToUpdate);
tx.commit();
}catch (HibernateException e) {
if (tx != null)
tx.rollback();
e.printStackTrace();
} finally {
session.close();
}
}
}
的問題是，如果我用3.2.1版本爲彈簧AOP模塊代替3.2.0以這種方式改變這種依賴關係：
<dependency> <!-- Usata da Hibernate 4 per LocalSessionFactoryBean -->
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
當我運行Maven --->的Maven安裝發生編譯失敗，並返回以下錯誤消息：
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /home/andrea/Documents/ws/HibernateOnSpring/src/main/java/org/andrea/myexample/HibernateOnSpring/dao/PersonDAOImpl.java:[15,49] error: package org.springframework.transaction.annotation does not exist
[ERROR] /home/andrea/Documents/ws/HibernateOnSpring/src/main/java/org/andrea/myexample/HibernateOnSpring/dao/PersonDAOImpl.java:[27,2] error: cannot find symbol
[ERROR] class PersonDAOImpl
/home/andrea/Documents/ws/HibernateOnSpring/src/main/java/org/andrea/myexample/HibernateOnSpring/dao/PersonDAOImpl.java:[128,2] error: cannot find symbol
[INFO] 3 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.288s
[INFO] Finished at: Fri Mar 08 13:19:23 CET 2013
[INFO] Final Memory: 12M/105M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project HibernateOnSpring: Compilation failure: Compilation failure:
[ERROR] /home/andrea/Documents/ws/HibernateOnSpring/src/main/java/org/andrea/myexample/HibernateOnSpring/dao/PersonDAOImpl.java:[15,49] error: package org.springframework.transaction.annotation does not exist
[ERROR] /home/andrea/Documents/ws/HibernateOnSpring/src/main/java/org/andrea/myexample/HibernateOnSpring/dao/PersonDAOImpl.java:[27,2] error: cannot find symbol
[ERROR] class PersonDAOImpl
[ERROR] /home/andrea/Documents/ws/HibernateOnSpring/src/main/java/org/andrea/myexample/HibernateOnSpring/dao/PersonDAOImpl.java:[128,2] error: cannot find symbol
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
Andin的PersonDAOImpl發生，不要」 t找到以下導入的類：
org.springframework.transaction.annotation.Transactional;
爲什麼我有這個問題，如果我嘗試使用3.2.1版本的spring-orm模塊？我如何解決使用它？
我已經解決了將彈簧tx和彈簧JDBC依賴同屬3.2.1版本......但我不理解爲什麼它在我沒有使用3.2.0版本的spring-orm模塊時起作用... – AndreaNobili 2013-03-08 12:55:45
我添加了依賴關係，事實上，它完成了這項工作。感謝評論 – Myna 2013-12-22 13:19:41