Spring+Hibernate事务处理，很简单的例子出错

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Spring Hibernate Bean Java junit

   项目第一次使用SSH，于是准备先做个Demo出来，就是想实现用户注册和登录，可是在持久化时就是遇到了问题。
   这个问题困扰了我和跟我pair的兄弟一天了，试验了几种方法，代码和Spring开发参考手册上的基本上一样，也用过其他人的方法，别人的程序在我的环境下没有问题，仿照他们的代码自己编一个就不行，几种方法的共性问题是：
     java.lang.NoSuchMethodError: org.springframework.util.ClassUtils.isPresent(Ljava/lang/String;)Z
    不同的方法会有不同的错误呈现，然而总是会出现这句话。
     我使用MyEclipse5.1的add spring capabilities和add hibernate capabilities自动生成的POJO和mapping文件，一切顺利，如下所示：

java 代码

default package
/**
* User generated by MyEclipse - Hibernate Tools
*/
public class User implements java.io.Serializable {
// Fields
private String userID;
private String userName;
private String password;
// Constructors
/** default constructor */
public User() {
}
/** full constructor */
public User(String userID, String userName, String password) {
this.userID = userID;
this.userName = userName;
this.password = password;
}
// Property accessors
//省略存取器方法
}

java 代码

// default package
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
/**
* Data access object (DAO) for domain model class User.
* @see .User
* @author MyEclipse - Hibernate Tools
*/
public class UserDAO extends HibernateDaoSupport {
private static final Log log = LogFactory.getLog(UserDAO.class);
protected void initDao() {
//do nothing
}
public void save(User transientInstance) {
log.debug("saving User instance");
try {
getHibernateTemplate().save(transientInstance);
log.debug("save successful");
} catch (RuntimeException re) {
log.error("save failed", re);
throw re;
}
public static UserDAO getFromApplicationContext(ApplicationContext ctx) {
return (UserDAO) ctx.getBean("UserDAO");
}
}

之后是配置文件：hibernate.cfg.xml

xml 代码

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.username">SOMIS</property>
<property name="connection.url">
jdbc:oracle:thin:@127.0.0.1:1521:ORA92
</property>
<property name="dialect">
org.hibernate.dialect.Oracle9Dialect
</property>
<property name="myeclipse.connection.profile">SOMIS</property>
<property name="connection.password">ss</property>
<property name="connection.driver_class">
oracle.jdbc.driver.OracleDriver
</property>
<mapping resource="User.hbm.xml" />
</session-factory>
</hibernate-configuration>

spring的配置文件，applicationContext.xml

xml 代码

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation">
<value>file:src/hibernate.cfg.xml</value>
</property>
</bean>
<bean id="UserDAO" class="UserDAO">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
</beans>

以下是测试代码：

java 代码

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import junit.framework.TestCase;
public class UserDAOTest extends TestCase {
public void testSave() {
ApplicationContext ctx = new ClassPathXmlApplicationContext( new
String[] { "applicationContext.xml" });
UserDAO userDAO=UserDAO.getFromApplicationContext(ctx);
User user=new User();
user.setPassword("123");
user.setUserID("1");
user.setUserName("admin");
userDAO.save(user);
}
}

这时测试可以通过（使用Spring自带的测试类也测试过）。

然后在配置文件中加入声明式事务处理，测试就通不过了。

xml 代码

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation">
<value>file:src/hibernate.cfg.xml</value>
</property>
</bean>
<bean id="UserDAO" class="UserDAO">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory"><ref bean="sessionFactory"/></property>
</bean>
<bean id="userDAOProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager" >
<ref bean="transactionManager"/>
</property>
<property name="target">
<ref bean="UserDAO"/>
</property>
<property name="transactionAttributes">
<props>
<prop key="save">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
</beans>

这是很平常的写法了，可是就是不知道为什么会报下面的错误：

org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'userDAOProxy' defined in class path
resource [applicationContext.xml]: Instantiation of bean failed;
nested exception is org.springframework.beans.BeanInstantiationException:
Could not instantiate bean class [org.springframework.transaction.interceptor.TransactionProxyFactoryBean]:
Constructor threw exception; nested exception is java.lang.NoSuchMethodError:
org.springframework.util.ClassUtils.isPresent(Ljava/lang/String;)Z
org.springframework.beans.BeanInstantiationException:
Could not instantiate bean class [org.springframework.transaction.interceptor.TransactionProxyFactoryBean]:
Constructor threw exception; nested exception is java.lang.NoSuchMethodError:
org.springframework.util.ClassUtils.isPresent(Ljava/lang/String;)Z
java.lang.NoSuchMethodError: org.springframework.util.ClassUtils.isPresent(Ljava/lang/String;)Z
at org.springframework.aop.framework.DefaultAopProxyFactory.<clinit>(DefaultAopProxyFactory.java:56)
at org.springframework.aop.framework.ProxyConfig.<init>(ProxyConfig.java:63)
at org.springframework.aop.framework.AbstractSingletonProxyFactoryBean.<init>(AbstractSingletonProxyFactoryBean.java:39)
at org.springframework.transaction.interceptor.TransactionProxyFactoryBean.<init>(TransactionProxyFactoryBean.java:105)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:171)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:52)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:486)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:362)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:233)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:145)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:277)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:313)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:87)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:72)
at UserDAOTest.testSave(UserDAOTest.java:11)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

后来我又使用了编程式事务处理，直接报错就是

java.lang.NoSuchMethodError: org.springframework.util.ClassUtils.isPresent(Ljava/lang/String;)Z

使用声明式事务处理也试过下面的代码：

xml 代码

<bean id="transactionInterceptor"
class="org.springframework.transaction.interceptor.TransactionInterceptor">
<property name="transactionManager" ref="transactionManager"/>
<property name="transactionAttributes">
<props>
<!--PROPAGATION_REQUIRE规则表示:在bean中所有以get开头的方法,当抛出异
常时,自动回滚,并只读，其他异常自动回滚-->
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
<prop key="*">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
<!--定义事务处理代理bean,他需要两个属性,一个是指定需要代理的bean,另一个是代理bean所需的
事务拦截器-->
<bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
<property name="beanNames">
<list>
<value>UserDAO</value>
</list>
</property>
<property name="interceptorNames">
<list>
<value>transactionInterceptor</value>
</list>
</property>
</bean>

依然报错，不知道怎么办了。

在Google，百度，Yahoo都搜过了，有位仁兄说了句Debug找错就完了。

对了，MyEclipse自动加入的spring1.2的包里 org.springframework.util.ClassUtils真的没有isPresent方法，可是我加了spring2.0的包，还是不行。

我是束手无策了，使用的最简单的方法（网上，书上，Rod Johnson的两本，再加上各种国内的技术书都看遍了，都使用这种方法），就这么几个文件，真的不知道怎么办了，望~

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2007-08-22 01:18
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4 楼 haojing_hj 2007-11-09

我也遇到了同样的问题，我的问题的原因是：spring包的版本有冲突，把所有的包删除后重新导入一遍就好了

3 楼 sslaowan 2007-10-22

sqrt3soft 写道

我也是遇到过这个问题，后来把spring-beans-2.0.1.jar，spring-core-2.0.1.jar，spring-web-2.0.1.jar这三个包去掉就行了，具体是哪个包在做怪我就没去试了，你也试一下吧

嗯，觉得就是欺负新人，我现在已经搞定了，也没变过什么，新建了一个工程就好了。当初刚用时是走一步错一步

2 楼 kyo100900 2007-10-22

包的不兼容问题

1 楼 sqrt3soft 2007-10-22

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