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";
}
