Struts+spring+hibernate的笔记.
2008-07-30 15:02
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(快刀浪子原创)下面是我学习Struts+spring+hibernate的笔记.
1.WEB.XML的配置:
首先在web.xml中加入:
[code:1]
<servlet>
<servlet-name>SpringContextServlet</servlet-name>
<servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
[/code:1]
我的整个web.xml象这样:
[code:1]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web
Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>info_web</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext-hibernate.xml</param-value>
</context-param>
<filter>
<filter-name>SetCharacterEncoding</filter-name>
<filter-class>iclass.util.SetEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GBK</param-value>
</init-param>
</filter>
<filter>
<filter-name>FilterRedirector</filter-name>
<filter-class>org.apache.cactus.server.FilterTestRedirector</filter-class>
</filter>
<filter-mapping>
<filter-name>SetCharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>FilterRedirector</filter-name>
<url-pattern>/FilterRedirector</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>SpringContextServlet</servlet-name>
<servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>ServletRedirector</servlet-name>
<servlet-class>org.apache.cactus.server.ServletTestRedirector</servlet-class>
</servlet>
<servlet>
<servlet-name>JspRedirector</servlet-name>
<jsp-file>/jspRedirector.jsp</jsp-file>
</servlet>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>application</param-name>
<param-value>ApplicationResources</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>ServletRedirector</servlet-name>
<url-pattern>/ServletRedirector</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>JspRedirector</servlet-name>
<url-pattern>/JspRedirector</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>/tags/struts-nested</taglib-uri>
<taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-tiles.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-nested.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
</taglib>
</web-app>
[/code:1]
2.spring配置
配置文件为applicationContext-hibernate.xml,在此配置文件中,配了POJO层,商业逻辑层,DAO层,和事务管理
[code:1]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!-- ========================= Start of PERSISTENCE DEFINITIONS ========================= -->
<!-- Choose the dialect that matches your "dataSource" definition -->
<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName">
<value>org.gjt.mm.mysql.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://localhost:3306/info_web?useUnicode=true&characterEncoding=GBK</value>
</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value>123456</value>
</property>
</bean>
<bean id="mySessionFactory" class="org.springframework.orm.hibernate.LocalSessionFactoryBean">
<property name="mappingResources">
<list>
<value>infoweb/pojo/Answer.hbm.xml</value>
<value>infoweb/pojo/Board.hbm.xml</value>
<value>infoweb/pojo/Image.hbm.xml</value>
<value>infoweb/pojo/Info.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">net.sf.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.cglib.use_reflection_optimizer">true</prop>
</props>
</property>
<property name="dataSource"><ref bean="myDataSource"/></property>
</bean>
<!-- Transaction manager for a single Hibernate SessionFactory (alternative to JTA) -->
<bean id="myTransactionManager" class="org.springframework.orm.hibernate.HibernateTransactionManager">
<property name="sessionFactory"><ref local="mySessionFactory"/></property>
</bean>
<!-- ***** Board SERVICE ***** -->
<bean id="boardService" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager"><ref local="myTransactionManager"/></property>
<property name="target"><ref local="boardServiceSpring"/></property>
<property name="transactionAttributes">
<props>
<prop key="get*">PROPAGATION_REQUIRED,readOnly,-BoardException</prop>
<prop key="set*">PROPAGATION_REQUIRED,-BoardException</prop>
<prop key="modify*">PROPAGATION_REQUIRED,-BoardException</prop>
<prop key="remove*">PROPAGATION_REQUIRED,-BoardException</prop>
</props>
</property>
</bean>
<!-- board primary business object implementation -->
<bean id="boardServiceSpring" class="infoweb.service.BoardServiceSpringImpl">
<property name="boardTreeDAO"><ref local="boardTreeDAO"/></property>
</bean>
<!-- DAO board: Hibernate implementation -->
<bean id="boardTreeDAO" class="infoweb.dao.BoardTreeDAOImpl">
<property name="sessionFactory"><ref local="mySessionFactory"/></property>
</bean>
<!-- DAO info: Hibernate implementation -->
<bean id="infoDAO" class="infoweb.dao.InfoDAOImpl">
<property name="sessionFactory"><ref local="mySessionFactory"/></property>
</bean>
</beans>
[/code:1]
3.做DAO代码,
[code:1]
package infoweb.dao;
import java.util.List;
import java.util.Iterator;
import infoweb.pojo.Board;
import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Query;
import net.sf.hibernate.Session;
import org.springframework.orm.hibernate.HibernateCallback;
import org.springframework.orm.hibernate.support.HibernateDaoSupport;
/**
* <p>Title: 版块分类DAOImpl</p>
* <p>Description: 用树型结构实现</p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 段洪杰
* @version 1.0
*/
public class BoardTreeDAOImpl extends HibernateDaoSupport implements
IBoardTreeDAO {
/**
* 构造函数
*/
public BoardTreeDAOImpl() {
super();
}
/**
* 通过ID取得版块
* @param id String
* @return Board
*/
public Board getBoardById(String id) {
Board board = (Board) getHibernateTemplate().load(Board.class, id);
return board;
}
/**
* 取根叶
* @return Iterator
*/
public Iterator getRoots() throws HibernateException {
String queryString =
"select board from Board as board where board.parentId='root' order by board.id desc";
List roots = getHibernateTemplate().find(queryString);
return roots.iterator();
}
/**
* 存根叶
* @param board Board
*/
public void setRoot(Board board) {
board.setParentId("root");
getHibernateTemplate().save(board);
}
/**
* 取子叶
* @param parentid String
* @return List
*/
public Iterator getChildren(String parentid) {
/*
String queryString =
"select board as Board where board.parent_id='parentid' order by board.id desc";
List children = getHibernateTemplate().find(queryString);
return children;
*/
Board parent = (Board) getHibernateTemplate().load(Board.class, parentid);
return parent.getChildren().iterator();
}
/**
* 取子叶数
* @param parentid String
* @return int
*/
public int getChildrenCount(String parentid) {
/*
String queryString =
"select count(*) Board where board.parent_id='parentid' order by board.id desc";
List children = getHibernateTemplate().find(queryString);
int count = ((Integer) children.iterator().next()).intValue();
return count;
*/
Board parent = (Board) getHibernateTemplate().load(Board.class, parentid);
int count = parent.getChildren().size();
return count;
}
/**
* 存子叶
* @param parentLeaf Leaf
*/
public void setChild(Board board, String parentid) {
board.setParentId(parentid);
getHibernateTemplate().save(board);
}
/**
*
* 删除该叶和它的子叶
* @param board Board
*/
public void deleteBranch(Board board) {
getHibernateTemplate().delete(board);
}
/**
* 根据子叶得到父叶
* @param child Board
* @return Board
*/
public Board getParentByChild(Board child) {
String parentId = child.getParentId();
Board parent = (Board) getHibernateTemplate().load(Board.class, parentId);
return parent;
}
/**
* 通过子ID得到父叶
* @param id String
* @return Board
*/
public Board getParentByChildId(String id) {
Board child = (Board) getHibernateTemplate().load(Board.class, id);
Board parent = (Board) getHibernateTemplate().load(Board.class,child.getParentId());
return parent;
}
}
[/code:1]
4.做service层代码
[code:1]
package infoweb.service;
import java.util.List;
import java.util.Iterator;
import infoweb.dao.BoardTreeDAOImpl;
import infoweb.dao.IBoardTreeDAO;
import infoweb.pojo.Board;
import infoweb.exception.BoardException;
import net.sf.hibernate.HibernateException;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 段洪杰
* @version 1.0
*/
public class BoardServiceSpringImpl implements IBoardService {
private IBoardTreeDAO boardTreeDAO;
public BoardServiceSpringImpl() {
super();
}
/**
* 取所有roots版块
* @return Iterator
*/
public Iterator getRoots() throws BoardException {
Iterator roots = null;
try {
roots = boardTreeDAO.getRoots();
} catch (Exception ex) {
throw new BoardException("取ROOT版块时出错! " + ex.toString());
}
return roots;
}
/**
* 增加Root新版块
* @param board Board
*/
public void setRoot(Board board) throws BoardException {
try {
boardTreeDAO.setRoot(board);
} catch (Exception ex) {
throw new BoardException("增加ROOT版块时出错! " + ex.toString());
}
}
/**
* 删除版块 (包含下级版块)
* @param board Board
*/
public void removeBoard(Board board) throws BoardException {
try {
boardTreeDAO.deleteBranch(board);
} catch (Exception ex) {
throw new BoardException("删除版块时出错! " + ex.toString());
}
}
/**
*
* @return IBoardTreeDAO
*/
public IBoardTreeDAO getBoardTreeDAO() {
return boardTreeDAO;
}
/**
*
* @param boardTreeDAO IBoardTreeDAO
*/
public void setBoardTreeDAO(IBoardTreeDAO boardTreeDAO) {
this.boardTreeDAO = boardTreeDAO;
}
}
[/code:1]
5.做ACTION的父类
[code:1]
package infoweb.web;
import javax.servlet.ServletContext;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionServlet;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import infoweb.service.IBoardService;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 段洪杰
* @version 1.0
*/
public class BaseAction extends Action {
private IBoardService boardService;
public void setServlet(ActionServlet actionServlet) {
super.setServlet(actionServlet);
ServletContext servletContext = actionServlet.getServletContext();
WebApplicationContext wac =
WebApplicationContextUtils.getRequiredWebApplicationContext(
servletContext);
this.boardService = (IBoardService) wac.getBean("boardService");
}
protected IBoardService getBoardService() {
return boardService;
}
}
[/code:1]
6.做action类
[code:1]
package infoweb.web;
import infoweb.pojo.Board;
import org.apache.commons.beanutils.PropertyUtils;
import org.apache.struts.action.*;
import org.apache.log4j.Logger;
import javax.servlet.http.*;
import java.util.Iterator;
import java.util.Date;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 段洪杰
* @version 1.0
*/
public class SetBoardAction extends BaseAction {
private static Logger log = Logger.getLogger(SetBoardAction.class);
public ActionForward execute(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) throws
Exception {
// SessionBean sessionBean = (SessionBean) httpServletRequest.getSession().getAttribute("sessionBean");
BoardForm boardForm = (BoardForm) actionForm;
//String backURL = httpServletRequest.getHeader("Referer");
/*
if (sessionBean==null||!sessionBean.getIsLogon()) {
httpServletRequest.setAttribute("message", "系统超时,或者没有登录 .返回重新登录!");
httpServletRequest.setAttribute("locationFile",
"location='index.jsp';");
return actionMapping.findForward("message");
}
*/
Board board = new Board();
boardForm.setCreateDate(new Date());
PropertyUtils.copyProperties(board, boardForm);
getBoardService().setRoot(board);
httpServletRequest.setAttribute("message", "版块信息录入完成!");
httpServletRequest.setAttribute("locationFile",
"<A HREF=/"javascript:history.back()/">返回</A>");
return (actionMapping.findForward("success"));
}
}
1.WEB.XML的配置:
首先在web.xml中加入:
[code:1]
<servlet>
<servlet-name>SpringContextServlet</servlet-name>
<servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
[/code:1]
我的整个web.xml象这样:
[code:1]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web
Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>info_web</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext-hibernate.xml</param-value>
</context-param>
<filter>
<filter-name>SetCharacterEncoding</filter-name>
<filter-class>iclass.util.SetEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GBK</param-value>
</init-param>
</filter>
<filter>
<filter-name>FilterRedirector</filter-name>
<filter-class>org.apache.cactus.server.FilterTestRedirector</filter-class>
</filter>
<filter-mapping>
<filter-name>SetCharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>FilterRedirector</filter-name>
<url-pattern>/FilterRedirector</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>SpringContextServlet</servlet-name>
<servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>ServletRedirector</servlet-name>
<servlet-class>org.apache.cactus.server.ServletTestRedirector</servlet-class>
</servlet>
<servlet>
<servlet-name>JspRedirector</servlet-name>
<jsp-file>/jspRedirector.jsp</jsp-file>
</servlet>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>application</param-name>
<param-value>ApplicationResources</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>ServletRedirector</servlet-name>
<url-pattern>/ServletRedirector</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>JspRedirector</servlet-name>
<url-pattern>/JspRedirector</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>/tags/struts-nested</taglib-uri>
<taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-tiles.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-nested.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
</taglib>
</web-app>
[/code:1]
2.spring配置
配置文件为applicationContext-hibernate.xml,在此配置文件中,配了POJO层,商业逻辑层,DAO层,和事务管理
[code:1]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!-- ========================= Start of PERSISTENCE DEFINITIONS ========================= -->
<!-- Choose the dialect that matches your "dataSource" definition -->
<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName">
<value>org.gjt.mm.mysql.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://localhost:3306/info_web?useUnicode=true&characterEncoding=GBK</value>
</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value>123456</value>
</property>
</bean>
<bean id="mySessionFactory" class="org.springframework.orm.hibernate.LocalSessionFactoryBean">
<property name="mappingResources">
<list>
<value>infoweb/pojo/Answer.hbm.xml</value>
<value>infoweb/pojo/Board.hbm.xml</value>
<value>infoweb/pojo/Image.hbm.xml</value>
<value>infoweb/pojo/Info.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">net.sf.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.cglib.use_reflection_optimizer">true</prop>
</props>
</property>
<property name="dataSource"><ref bean="myDataSource"/></property>
</bean>
<!-- Transaction manager for a single Hibernate SessionFactory (alternative to JTA) -->
<bean id="myTransactionManager" class="org.springframework.orm.hibernate.HibernateTransactionManager">
<property name="sessionFactory"><ref local="mySessionFactory"/></property>
</bean>
<!-- ***** Board SERVICE ***** -->
<bean id="boardService" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager"><ref local="myTransactionManager"/></property>
<property name="target"><ref local="boardServiceSpring"/></property>
<property name="transactionAttributes">
<props>
<prop key="get*">PROPAGATION_REQUIRED,readOnly,-BoardException</prop>
<prop key="set*">PROPAGATION_REQUIRED,-BoardException</prop>
<prop key="modify*">PROPAGATION_REQUIRED,-BoardException</prop>
<prop key="remove*">PROPAGATION_REQUIRED,-BoardException</prop>
</props>
</property>
</bean>
<!-- board primary business object implementation -->
<bean id="boardServiceSpring" class="infoweb.service.BoardServiceSpringImpl">
<property name="boardTreeDAO"><ref local="boardTreeDAO"/></property>
</bean>
<!-- DAO board: Hibernate implementation -->
<bean id="boardTreeDAO" class="infoweb.dao.BoardTreeDAOImpl">
<property name="sessionFactory"><ref local="mySessionFactory"/></property>
</bean>
<!-- DAO info: Hibernate implementation -->
<bean id="infoDAO" class="infoweb.dao.InfoDAOImpl">
<property name="sessionFactory"><ref local="mySessionFactory"/></property>
</bean>
</beans>
[/code:1]
3.做DAO代码,
[code:1]
package infoweb.dao;
import java.util.List;
import java.util.Iterator;
import infoweb.pojo.Board;
import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Query;
import net.sf.hibernate.Session;
import org.springframework.orm.hibernate.HibernateCallback;
import org.springframework.orm.hibernate.support.HibernateDaoSupport;
/**
* <p>Title: 版块分类DAOImpl</p>
* <p>Description: 用树型结构实现</p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 段洪杰
* @version 1.0
*/
public class BoardTreeDAOImpl extends HibernateDaoSupport implements
IBoardTreeDAO {
/**
* 构造函数
*/
public BoardTreeDAOImpl() {
super();
}
/**
* 通过ID取得版块
* @param id String
* @return Board
*/
public Board getBoardById(String id) {
Board board = (Board) getHibernateTemplate().load(Board.class, id);
return board;
}
/**
* 取根叶
* @return Iterator
*/
public Iterator getRoots() throws HibernateException {
String queryString =
"select board from Board as board where board.parentId='root' order by board.id desc";
List roots = getHibernateTemplate().find(queryString);
return roots.iterator();
}
/**
* 存根叶
* @param board Board
*/
public void setRoot(Board board) {
board.setParentId("root");
getHibernateTemplate().save(board);
}
/**
* 取子叶
* @param parentid String
* @return List
*/
public Iterator getChildren(String parentid) {
/*
String queryString =
"select board as Board where board.parent_id='parentid' order by board.id desc";
List children = getHibernateTemplate().find(queryString);
return children;
*/
Board parent = (Board) getHibernateTemplate().load(Board.class, parentid);
return parent.getChildren().iterator();
}
/**
* 取子叶数
* @param parentid String
* @return int
*/
public int getChildrenCount(String parentid) {
/*
String queryString =
"select count(*) Board where board.parent_id='parentid' order by board.id desc";
List children = getHibernateTemplate().find(queryString);
int count = ((Integer) children.iterator().next()).intValue();
return count;
*/
Board parent = (Board) getHibernateTemplate().load(Board.class, parentid);
int count = parent.getChildren().size();
return count;
}
/**
* 存子叶
* @param parentLeaf Leaf
*/
public void setChild(Board board, String parentid) {
board.setParentId(parentid);
getHibernateTemplate().save(board);
}
/**
*
* 删除该叶和它的子叶
* @param board Board
*/
public void deleteBranch(Board board) {
getHibernateTemplate().delete(board);
}
/**
* 根据子叶得到父叶
* @param child Board
* @return Board
*/
public Board getParentByChild(Board child) {
String parentId = child.getParentId();
Board parent = (Board) getHibernateTemplate().load(Board.class, parentId);
return parent;
}
/**
* 通过子ID得到父叶
* @param id String
* @return Board
*/
public Board getParentByChildId(String id) {
Board child = (Board) getHibernateTemplate().load(Board.class, id);
Board parent = (Board) getHibernateTemplate().load(Board.class,child.getParentId());
return parent;
}
}
[/code:1]
4.做service层代码
[code:1]
package infoweb.service;
import java.util.List;
import java.util.Iterator;
import infoweb.dao.BoardTreeDAOImpl;
import infoweb.dao.IBoardTreeDAO;
import infoweb.pojo.Board;
import infoweb.exception.BoardException;
import net.sf.hibernate.HibernateException;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 段洪杰
* @version 1.0
*/
public class BoardServiceSpringImpl implements IBoardService {
private IBoardTreeDAO boardTreeDAO;
public BoardServiceSpringImpl() {
super();
}
/**
* 取所有roots版块
* @return Iterator
*/
public Iterator getRoots() throws BoardException {
Iterator roots = null;
try {
roots = boardTreeDAO.getRoots();
} catch (Exception ex) {
throw new BoardException("取ROOT版块时出错! " + ex.toString());
}
return roots;
}
/**
* 增加Root新版块
* @param board Board
*/
public void setRoot(Board board) throws BoardException {
try {
boardTreeDAO.setRoot(board);
} catch (Exception ex) {
throw new BoardException("增加ROOT版块时出错! " + ex.toString());
}
}
/**
* 删除版块 (包含下级版块)
* @param board Board
*/
public void removeBoard(Board board) throws BoardException {
try {
boardTreeDAO.deleteBranch(board);
} catch (Exception ex) {
throw new BoardException("删除版块时出错! " + ex.toString());
}
}
/**
*
* @return IBoardTreeDAO
*/
public IBoardTreeDAO getBoardTreeDAO() {
return boardTreeDAO;
}
/**
*
* @param boardTreeDAO IBoardTreeDAO
*/
public void setBoardTreeDAO(IBoardTreeDAO boardTreeDAO) {
this.boardTreeDAO = boardTreeDAO;
}
}
[/code:1]
5.做ACTION的父类
[code:1]
package infoweb.web;
import javax.servlet.ServletContext;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionServlet;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import infoweb.service.IBoardService;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 段洪杰
* @version 1.0
*/
public class BaseAction extends Action {
private IBoardService boardService;
public void setServlet(ActionServlet actionServlet) {
super.setServlet(actionServlet);
ServletContext servletContext = actionServlet.getServletContext();
WebApplicationContext wac =
WebApplicationContextUtils.getRequiredWebApplicationContext(
servletContext);
this.boardService = (IBoardService) wac.getBean("boardService");
}
protected IBoardService getBoardService() {
return boardService;
}
}
[/code:1]
6.做action类
[code:1]
package infoweb.web;
import infoweb.pojo.Board;
import org.apache.commons.beanutils.PropertyUtils;
import org.apache.struts.action.*;
import org.apache.log4j.Logger;
import javax.servlet.http.*;
import java.util.Iterator;
import java.util.Date;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 段洪杰
* @version 1.0
*/
public class SetBoardAction extends BaseAction {
private static Logger log = Logger.getLogger(SetBoardAction.class);
public ActionForward execute(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) throws
Exception {
// SessionBean sessionBean = (SessionBean) httpServletRequest.getSession().getAttribute("sessionBean");
BoardForm boardForm = (BoardForm) actionForm;
//String backURL = httpServletRequest.getHeader("Referer");
/*
if (sessionBean==null||!sessionBean.getIsLogon()) {
httpServletRequest.setAttribute("message", "系统超时,或者没有登录 .返回重新登录!");
httpServletRequest.setAttribute("locationFile",
"location='index.jsp';");
return actionMapping.findForward("message");
}
*/
Board board = new Board();
boardForm.setCreateDate(new Date());
PropertyUtils.copyProperties(board, boardForm);
getBoardService().setRoot(board);
httpServletRequest.setAttribute("message", "版块信息录入完成!");
httpServletRequest.setAttribute("locationFile",
"<A HREF=/"javascript:history.back()/">返回</A>");
return (actionMapping.findForward("success"));
}
}
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