实战3--板块管理的步骤

步骤:

一. 写实体类, 配置文件 Forum.hbm.xml, 在hibernate.cfg.xml里添加实体,  运行sessionFactory的test方法, 得到表格

二. 写action, 添加基本方法,  写jsp页面,配置struts.xml

三. 创建service接口和实现类,BaseAction里声明service实例

四. 填空实现action功能

一. 写实体类, 配置文件 Forum.hbm.xml, 在hibernate.cfg.xml里添加实体,  运行sessionFactory的test方法, 得到表格

1. 写 实体类 Forum.java:

package cn.itcast.oa.domain;

public class Forum {
	private Long id;
	private String name;
	private String description;
	private int position; //代表用于指定顺序
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getDescription() {
		return description;
	}
	public void setDescription(String description) {
		this.description = description;
	}
	public int getPosition() {
		return position;
	}
	public void setPosition(int position) {
		this.position = position;
	}
}

2. 写配置文件 Forum.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="cn.itcast.oa.domain">
	<class name="Forum" table="itcast_forum">
		<id name="id">
			<generator class="native"></generator>
		</id>
		<property name="name" />	
		<property name="description" />
		<property name="position" />
	</class>
</hibernate-mapping>

3. 在hibernate.cfg.xml里添加此实体

<!--3. mapping -->
<mapping resource="cn/itcast/oa/domain/User.hbm.xml" />
<mapping resource="cn/itcast/oa/domain/Role.hbm.xml" />
<mapping resource="cn/itcast/oa/domain/Department.hbm.xml" />
<mapping resource="cn/itcast/oa/domain/Privilege.hbm.xml" />
<mapping resource="cn/itcast/oa/domain/Forum.hbm.xml" />

4. 通过sessionFactory生成表

package cn.itcast.oa.test;

import org.hibernate.SessionFactory;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringTest {
	private ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
	@Test
	public void testSessionFactory() throws Exception{
		SessionFactory sessionFactory = (SessionFactory)ac.getBean("sessionFactory");
		System.out.println(sessionFactory);		
	}
}

5. 确认生成表OK

二. 写action, 添加基本方法,  写jsp页面,配置struts.xml

1. 创建action, 注意继承 extends BaseAction<Forum>, 添加基本方法, 注意添加

@Controller
@Scope("prototype")

package cn.itcast.oa.view.action;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import cn.itcast.oa.base.BaseAction;
import cn.itcast.oa.domain.Forum;

@Controller
@Scope("prototype")
public class ForumManageAction extends BaseAction<Forum>{
	/** 列表 */
	public String list() throws Exception {
		return "list";
	}
	/** 删除 */
	public String delete() throws Exception {
		return "toList";
	}
	/** 添加页面 */
	public String addUI() throws Exception {
		return "saveUI";
	}
	/** 添加 */
	public String add() throws Exception {
		return "toList";
	}
	/** 修改页面 */
	public String editUI() throws Exception {
		return "saveUI";
	}
	/** 修改 */
	public String edit() throws Exception {
		return "toList";
	}	
	/** 上移 */
	public String moveUp() throws Exception {
		return "toList";
	}	
	/** 下移 */
	public String moveDown() throws Exception {
		return "toList";
	}
}

2. 创建jsp页面, 注意要新建目录  forumManageAction,

   list.jsp　　   

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
	<%@ include file="/WEB-INF/jsp/public/commons.jspf" %>  
list

   saveUI.jsp    

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
	<%@ include file="/WEB-INF/jsp/public/commons.jspf" %>  
saveUI

3. struts.xml添加板块管理模块   

<!-- 板块管理 -->
		<action name="forumManage_*" class="forumManageAction" method="{1}">
			<result name="list">/WEB-INF/jsp/forumManageAction/list.jsp</result>
			<result name="saveUI">/WEB-INF/jsp/forumManageAction/saveUI.jsp</result>
			<result name="toList" type="redirectAction">forumManage_list</result>
		</action>

三. 创建service接口和实现类,配置实现类, BaseAction里声明service实例

1. 创建service的接口

    ForumService.java接口, 记住要 extends DaoSupport<Forum>   

package cn.itcast.oa.service;

import cn.itcast.oa.base.DaoSupport;
import cn.itcast.oa.domain.Forum;

public interface ForumService extends DaoSupport<Forum>{

}

2. 写实现类 ForumServiceImpl.java, 记住要  extends DaoSupportImpl<Forum>implements ForumService

package cn.itcast.oa.service.impl;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import cn.itcast.oa.base.DaoSupportImpl;
import cn.itcast.oa.domain.Forum;
import cn.itcast.oa.service.ForumService;
@Service
@Transactional
@SuppressWarnings("unchecked")
public class ForumServiceImpl extends DaoSupportImpl<Forum>implements ForumService {

}

3. 给实现类配置

@Service
@Transactional
@SuppressWarnings("unchecked")

　　

4. 在BaseAction里声明service实例

	//******************service实例的声明******************
	@Resource
	protected RoleService roleService;
	@Resource
	protected DepartmentService departmentService;
	@Resource
	protected UserService userService;
	@Resource
	protected PrivilegeService privilegeService;
	@Resource
	protected ForumService forumService;

四. 填空实现action功能

1. 首先list功能

   

　　　　/** 列表 */
	public String list() throws Exception {
		List<Forum> forumlist = forumService.findAll();
		ActionContext.getContext().put("forumlist", forumlist);
		return "list";
	}

2. delete功能

　　　　/** 删除 */
	public String delete() throws Exception {
		forumService.delete(model.getId());
		return "toList";
	}

3. addUI功能不需要添加什么

4. add功能 

　　　　/** 添加 */
	public String add() throws Exception {
		forumService.save(model);
		return "toList";
	}

5. editUI功能   

　　　　/** 修改页面 */
	public String editUI() throws Exception {
		//准备回显的数据
		Forum forum = forumService.getById(model.getId());
		ActionContext.getContext().getValueStack().push(forum);
		return "saveUI";
	}

6. edit功能:

    1. 从数据库中取出原对象

    2. 设置要修改的属性

    3. 更新到数据库    

　　　　/** 修改 */
	public String edit() throws Exception {
		//1. 从数据库中取出原对象
		Forum forum = forumService.getById(model.getId());
		//2. 设置要修改的属性
		forum.setName(model.getName());
		forum.setDescription(model.getDescription());
		//3. 更新到数据库
		forumService.update(model);
		return "toList";
	}

7. 上移下移功能

    

　　　　/** 上移 */
	public String moveUp() throws Exception {
		forumService.moveUp(model.getId());
		return "toList";
	}

	/** 下移 */
	public String moveDown() throws Exception {
		forumService.moveDown(model.getId());
		return "toList";
	}