spring和hibernate问题，如有哪位大虾帮助分析解决，立即送分

Question

上面的配置文件配置动态代理的地方不对个人看法:->既然你是用了动态代理,就应该指明要代理的对象 既    
<property name="target">
      <ref local="TFastenerDAO" />
</property>
上面的文件没有指定,当然会出错

Answer 1

我将配置文件修改后还是报异常。
修改的部分：
  <bean id="txProxyTemplate" abstract="true" 
        class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> 
    <property name="transactionManager"><ref bean="transactionManager"/></property>
    <property name="target">
      <ref local="TFastenerDAO" />
    </property> 
    <property name="transactionAttributes"> 
        <props> 
            <prop key="save*">PROPAGATION_REQUIRED</prop> 
            <prop key="update*">PROPAGATION_REQUIRED</prop> 
            <prop key="delete*">PROPAGATION_REQUIRED</prop> 
            <prop key="remove*">PROPAGATION_REQUIRED</prop> 
            <prop key="*">PROPAGATION_REQUIRED,readOnly</prop> 
        </props> 
    </property> 
  </bean> 
异常如下：
2005-10-21 09:47:27,765 [ERROR] Servlet.service() for servlet jsp threw exception
java.lang.ClassCastException: $Proxy1
at com.paiao.bdpm.standardWork.nostruts.ST_Fastener.listT_FastenerForPage(ST_Fastener.java:105)
at org.apache.jsp.jsp.standardWorktest.PT_005fFastenerList1_jsp._jspService(org.apache.jsp.jsp.standardWorktest.PT_005fFastenerList1_jsp:109)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)说明一下：我的配置文件和java文件是参考appfuse修改的，spring和hibernate的包是myeclipse的add spring Capabilities 和add hibernate Capabilities功能加上的。

Answer 2

你的TFastenerDAO是否实现了接口?如果没有 加入 <property name="proxyTargetClass">
<value>true</value>
</property>

Answer 3

to:myth822(枫红一刀) 
我将配置文件修改后还是报异常
修改部分：
  <bean id="txProxyTemplate" abstract="true" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> 
    <property name="transactionManager"><ref bean="transactionManager"/></property>
<property name="proxyTargetClass">
   <value>true</value>
</property>
    <property name="transactionAttributes"> 
        <props> 
            <prop key="save*">PROPAGATION_REQUIRED</prop> 
            <prop key="update*">PROPAGATION_REQUIRED</prop> 
            <prop key="delete*">PROPAGATION_REQUIRED</prop> 
            <prop key="remove*">PROPAGATION_REQUIRED</prop> 
            <prop key="*">PROPAGATION_REQUIRED,readOnly</prop> 
        </props> 
    </property> 
  </bean> 报的异常：
java.lang.ClassCastException: com.paiao.bdpm.standardWork.service.impl.TFastenerManagerImpl$$EnhancerByCGLIB$$8dc0c7d3
at com.paiao.bdpm.standardWork.nostruts.ST_Fastener.listT_FastenerForPage(ST_Fastener.java:105)
at org.apache.jsp.jsp.standardWorktest.PT_005fFastenerList1_jsp._jspService(org.apache.jsp.jsp.standardWorktest.PT_005fFastenerList1_jsp:109)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)TFastenerDAO的代码：
public interface TFastenerDAO  extends DAO {
    public TFastener getTFastener(String fastener);
    public List getTFasteners(String sql);
    public void saveTFastener(TFastener fastener);
    public void removeTFastener(String fastener);
}
DAO的代码：
public interface DAO {
    public List getObjects(Class clazz);
    public Object getObject(Class clazz, Serializable id);
    public void saveObject(Object o);
    public void removeObject(Class clazz, Serializable id);
}

Answer 4

TFastenerDAOHibernate的代码：
public class TFastenerDAOHibernate extends BaseDAOHibernate implements TFastenerDAO {
    public List getTFasteners(String sql) {
        return getHibernateTemplate().find("from TFastener "+sql);
    }    public TFastener getTFastener(String fastenername) {
        return (TFastener) getHibernateTemplate().get(TFastener.class,fastenername);
    }    public void saveTFastener(TFastener tFastener) {
        getHibernateTemplate().saveOrUpdate(tFastener);
    }    public void removeTFastener(String fastenername) {
        Object fanstener = getHibernateTemplate().load(TFastener.class, fastenername);
        getHibernateTemplate().delete(fanstener);
    }
}
BaseDAOHibernate 的代码：
public class BaseDAOHibernate extends HibernateDaoSupport implements DAO {
    protected final Log log = LogFactory.getLog(getClass());
    public void saveObject(Object o) {
        getHibernateTemplate().saveOrUpdate(o);
    }
    public Object getObject(Class clazz, Serializable id) {
        Object o = getHibernateTemplate().get(clazz, id);
        if (o == null) {
            throw new ObjectRetrievalFailureException(clazz, id);
        }
        return o;
    }
    public List getObjects(Class clazz) {
        return getHibernateTemplate().loadAll(clazz);
    }
    public void removeObject(Class clazz, Serializable id) {
        getHibernateTemplate().delete(getObject(clazz, id));
    }
}

Answer 5

你不是接口了吗,不用加那句话   你的TFastenerManagerImpl是不是有txProxyTemplate的getter,setter方法
public DAO getTxProxyTemplate() {
...
}
public void setTxProxyTemplate(DAO newValue) {
...
}

Answer 6

没有啊，我这是参考appfuse修改的。
TFastenerManagerImpl的代码：
public class TFastenerManagerImpl extends BaseManager implements TFastenerManager {
    private TFastenerDAO dao;
    public void setTFastenerDAO(TFastenerDAO dao) {
        this.dao = dao;
    }
    public List getTFasteners(String sql) {
        return dao.getTFasteners(sql);
    }
    public TFastener getTFastener(String fastenername) {
        return dao.getTFastener(fastenername);
    }
    public void saveTFastener(TFastener fastener) {
        dao.saveTFastener(fastener);
    }
    public void removeTFastener(String fastenername) {
        dao.removeTFastener(fastenername);
    }BaseManager的代码：
public class BaseManager implements Manager {
    protected final Log log = LogFactory.getLog(getClass());
    protected DAO dao = null;
    public void setDAO(DAO dao) {
        this.dao = dao;
    }
    public Object getObject(Class clazz, Serializable id) {
        return dao.getObject(clazz, id);
    }
    public List getObjects(Class clazz) {
        return dao.getObjects(clazz);
    }    public void removeObject(Class clazz, Serializable id) {
        dao.removeObject(clazz, id);
    }    public void saveObject(Object o) {
        dao.saveObject(o);
    }
}

Answer 7

问题解决了，是我把调用的方法写错了。
将下面的代码修改
TFastenerDAO tFastenerDAO = (TFastenerDAO) context.getBean("TFastenerManager");
alist=(ArrayList) tFastenerDAO.getTFasteners(whereSQL);
修改后的代码：
TFastenerManager tFastenerManager=(TFastenerManager) context.getBean("TFastenerManager");
alist=(ArrayList) tFastenerManager.getTFasteners(whereSQL);
因为我以前用的TFastenerDAO 方式调用：
TFastenerDAO tFastenerDAO = (TFastenerDAO) context.getBean("TFastenerDAO ");
alist=(ArrayList) tFastenerDAO.getTFasteners(whereSQL);
粗心大意将(TFastenerDAO) context.getBean("TFastenerDAO ");修改为(TFastenerDAO) context.getBean("TFastenerManager");肯定会报类型转换错误。开始还以为是配置问题，解决了半天。