| 呵呵，在忙一个项目，潜水很久，现在冒个泡：(本文适用在struts+spring+hibernate3上做开发的虫虫们)
类名：HibernateUtil
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->package com.antbee.j2eemodel.util;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;import java.util.Collection;import java.util.Iterator;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;public class HibernateUtil extends HibernateDaoSupport {/*** 初始化POJO类* @author @家军* @param object POJO对象* @param methodName 方法名称* @return* @version 1.0*/public void initialize(Object object, String methodName) throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException {String[] methodArray = methodName.split("\\.");Method method = null;Object initializeObject = object;if(methodArray.length == 1){this.getHibernateTemplate().lock(initializeObject, org.hibernate.LockMode.NONE);method = object.getClass().getMethod(methodArray[0], new Class[] {});initializeObject = method.invoke(initializeObject, new Object[] {});this.getHibernateTemplate().initialize(initializeObject);}else{for(int i=0;i<methodArray.length;i++){method = initializeObject.getClass().getMethod(methodArray[i], new Class[] {});initializeObject = method.invoke(initializeObject, new Object[] {});}this.getHibernateTemplate().lock(initializeObject, org.hibernate.LockMode.NONE);this.getHibernateTemplate().initialize(initializeObject);}}/*** 初始化POJO类* @author @家军* @param object POJO对象* @param methodName 方法名称数组* @return* @version 1.0*/public void initialize(Object object, String methodName[])throws SecurityException, NoSuchMethodException,IllegalArgumentException, IllegalAccessException, InvocationTargetException {for (int i = 0; i < methodName.length; i++) {String[] methodArray = methodName[i].split("\\.");Method method = null;Object initializeObject = object;if(methodArray.length == 1){this.getHibernateTemplate().lock(initializeObject, org.hibernate.LockMode.NONE);method = object.getClass().getMethod(methodArray[0], new Class[] {});initializeObject = method.invoke(initializeObject, new Object[] {});this.getHibernateTemplate().initialize(initializeObject);}else{for(int j=0;j<methodArray.length;j++){method = initializeObject.getClass().getMethod(methodArray[j], new Class[] {});initializeObject = method.invoke(initializeObject, new Object[] {});}this.getHibernateTemplate().lock(initializeObject, org.hibernate.LockMode.NONE);this.getHibernateTemplate().initialize(initializeObject);}}}/*** 初始化POJO类* @author @家军* @param object POJO对象* @return* @version 1.0*/public void initialize(Object object) throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException {this.getHibernateTemplate().lock(object, org.hibernate.LockMode.NONE);this.getHibernateTemplate().initialize(object);}/*** 初始化POJO类* @author @家军* @param collection POJO对象集合* @param methodName 方法名称数组* @return* @version 1.0*/public void initialize(Collection collection, String methodName[])throws SecurityException, NoSuchMethodException,IllegalArgumentException, IllegalAccessException, InvocationTargetException {for(Iterator i=collection.iterator();i.hasNext()Wink{Object object = i.next();this.initialize(object,methodName);}}/*** 初始化POJO类* @author @家军* @param collection POJO对象集合* @param methodName 方法名称* @return* @version 1.0*/public void initialize(Collection collection, String methodName)throws SecurityException, NoSuchMethodException,IllegalArgumentException, IllegalAccessException, InvocationTargetException {for(Iterator i=collection.iterator();i.hasNext()Wink{Object object = i.next();this.initialize(object,methodName);}}}
这个方法的好外是：可以不在hbm.xml的文件当中，指定为lazy=true这个模式，可以直接使用。使用方法如下：
如果你使用SPRING，则需要把hibernateUtil注入其中：
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> <bean id="hibernateUtilTarget" class="com.antbee.j2eemodel.util.HibernateUtil"><property name="sessionFactory"><ref local="mssqlSessionFactory" /></property></bean><bean id="hibernateUtil" parent="BaseTransactionProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"><property name="target"><ref local="hibernateUtilTarget" /></property></bean><!--配置基础事务--><bean id="BaseTransactionProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true"><property name="transactionManager"><ref bean="mssqltransactionManager" /></property><property name="proxyTargetClass"><value>true</value></property><property name="transactionAttributes"><props><prop key="*">PROPAGATION_REQUIRED</prop></props></property></bean>
使用示例：
如果你使用STRUTS，则需要这样：
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->List what_ur_view = XXXManager.find(500)this.width=500'>500)this.width=500'>500)this.width=500'>.);//取得你要展示的对象//如果这个对象当中有延迟加载的对象(SET)时，则需要如下加载就行this.hibernateUtil.initialize(what_ur_view, "getTbShipmentSale");//其中getTbShipmentSale是其对象(SET也可以操作)
在页面显示的时候，你就可以使用JSTL如下表述：
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--><c:out value="${what_ur_view.tbShipmentSale.goodsReceivePersonPhone}" />//呵呵，是不是很爽呀。
同样的方法，我们也可以对一个SET在页面进行显示，方法如下：
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--><c:forEach items="${what_ur_view.tbShipmentProductMappingSet}" var="ProductMapping" varStatus="status"><c:out value="${ProductMapping.productNum}" /><c:out value="${ProductMapping.tbOutOfWarehouse.outOfWarehouseNum}" /></c:forEach>//呵呵，支持多级嵌套，
在ACTION当中则需要加入Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->hibernateUtil.initialize(what_ur_view.getTbShipmentProductMappingSet(),new String[] { "getTbProduct", "getTbOutOfWarehouse","getTbProductConfigure" }); 呵，如果你要是在HIBERNATE当中使用，这个就太简单了吧。
怎么样？呵呵呵，
从此，我对STRUTS的标签深恶痛绝，而对JSTL情有独钟了。 |
