实战3--设计管理模块,整合!!!

1. 所有dao和daoimpl模块都不用, 加上 @Deprecated

2. 建立DaoSupport类和DaoSupportImpl类

    DaoSupport.java     

package cn.itcast.oa.base;
import java.util.List;
public interface DaoSupport<T> {
	void save(T entity);
	void delete(Long id);
	void update(T entity);
	T getById(Long id);
	List<T> getByIds(Long[] ids);
	List<T> findAll();
}

  　DaoSupportImpl.java     

package cn.itcast.oa.base;
import java.lang.reflect.ParameterizedType;
import java.util.List;
import javax.annotation.Resource;
import org.hibernate.Session;
import org.hibernate.SessionFactory;

@SuppressWarnings("unchecked")
public class DaoSupportImpl<T> implements DaoSupport<T> {

	@Resource
	private SessionFactory sessionFactory;
	private Class<T> clazz = null;
	
	public DaoSupportImpl(){
		//使用反射技术得到T的真实类型
		ParameterizedType pt = (ParameterizedType)this.getClass().getGenericSuperclass();//获取当前new的对象的泛型的父类类型
		this.clazz = (Class<T>)pt.getActualTypeArguments()[0];
		System.out.println("clazz===>"+clazz.getName());
		System.out.println("clazz===>"+clazz.getSimpleName());
	}
	protected Session getSession() {
		return sessionFactory.getCurrentSession();
	}
	public void save(T entity) {
		getSession().save(entity);
	}
	public void update(T entity) {
		getSession().update(entity);
	}
	public void delete(Long id) {
		Object obj = getById(id);
		if (obj != null) {
			getSession().delete(obj);
		}
	}
	public T getById(Long id) {
		if(id == null)
			return null;
		else
			return (T) getSession().get(clazz, id);
	}

	public List<T> getByIds(Long[] ids) {
		return getSession().createQuery(//
				"FROM " + clazz.getSimpleName()+"WHERE id IN(:ids)")//
				.setParameterList("ids",ids).
				list();
	}

	public List<T> findAll() {
		return getSession().createQuery(//
				"FROM " + clazz.getSimpleName()).//
				list();
	}

}

　3. 抽取BaseAction, 这样每个action都可以专注写自己的方法   

package cn.itcast.oa.base;
import java.lang.reflect.ParameterizedType;
import javax.annotation.Resource;
import cn.itcast.oa.service.DepartmentService;
import cn.itcast.oa.service.RoleService;
import cn.itcast.oa.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public abstract class BaseAction<T> extends ActionSupport implements ModelDriven<T>{	
	protected T model ;	
	public BaseAction(){		
		try {
			//通过反射活的model的真实类型
			ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass();
			Class<T> clazz = (Class<T>)pt.getActualTypeArguments()[0];
			//通过反射创建model的实例
			model = clazz.newInstance();
		} catch (Exception e) {
			 throw new RuntimeException();
		} 
	}
	public T getModel() {		
		return model;
	}
	
	//******************service实例的声明******************
	@Resource
	protected RoleService roleService;
	@Resource
	protected DepartmentService departmentService;
	@Resource
	protected UserService userService;
}

整合完毕!!!

增加新模块的步骤:　

一. 创建Action的准备

1. 写新的action, UserAction.java,

    1) extends BaseAction

    2) @Controller  @Scope("prototype")

2. 定义出Action的方法, 写出方法名, 作用, 返回值    

/** 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";
	}
        /** 初始化密码1234 **/
	public String initPassword() throws Exception {
		return "toList";
	}    

3. 创建所用到的jsp页面(list.jsp, saveUI.jsp)

4. struts.xml配置    

<!-- 用户管理 -->
<action name="user_*" class="userAction" method="{1}">
	<result name="list">/WEB-INF/jsp/userAction/list.jsp</result>
	<result name="saveUI">/WEB-INF/jsp/userAction/saveUI.jsp</result>
	<result name="toList" type="redirectAction">user_list?parentId=${parentId}</result>
</action>

　　

二. 准备service

1. 创建接口UserService.java,    extends DaoSupport<User>   

package cn.itcast.oa.service;
import cn.itcast.oa.base.DaoSupport;
import cn.itcast.oa.domain.User;
public interface UserService  extends DaoSupport<User>{
}

2. 创建实现类 UserServiceImpl.java  ,  extends DaoSupportImpl<User> implements UserService

3. 配置: 在UserServiceImpl上写注解 @Service  @Transactional

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.User;
import cn.itcast.oa.service.UserService;

@Service
@Transactional
public class UserServiceImpl extends DaoSupportImpl<User> implements UserService{

}

4. BaseAction里写service的声明   

package cn.itcast.oa.base;
import java.lang.reflect.ParameterizedType;
import javax.annotation.Resource;
import cn.itcast.oa.service.DepartmentService;
import cn.itcast.oa.service.RoleService;
import cn.itcast.oa.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public abstract class BaseAction<T> extends ActionSupport implements ModelDriven<T>{	
	protected T model ;	
	public BaseAction(){		
		try {
			//通过反射活的model的真实类型
			ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass();
			Class<T> clazz = (Class<T>)pt.getActualTypeArguments()[0];
			//通过反射创建model的实例
			model = clazz.newInstance();
		} catch (Exception e) {
			 throw new RuntimeException();
		} 
	}
	public T getModel() {		
		return model;
	}
	
	//******************service实例的声明******************
	@Resource
	protected RoleService roleService;
	@Resource
	protected DepartmentService departmentService;
	@Resource
	protected UserService userService;
}

　　

三. 填空

1. 写Action方法

   UserAction.java

   

package cn.itcast.oa.view.action;

import java.util.HashSet;
import java.util.List;

import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import cn.itcast.oa.base.BaseAction;
import cn.itcast.oa.domain.Department;
import cn.itcast.oa.domain.Role;
import cn.itcast.oa.domain.User;
import cn.itcast.oa.util.DepartmentUtils;

import com.opensymphony.xwork2.ActionContext;

@Controller
@Scope("prototype")
public class UserAction extends BaseAction<User> {
	private Long departmentId;
	private Long[] roleIds;

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

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

	/** 添加页面 */
	public String addUI() throws Exception {
		// 准备数据departmentList
		List<Department> topList = departmentService.findTopList();
		List<Department> departmentList = DepartmentUtils.getAllDepartments(topList);
		ActionContext.getContext().put("departmentList", departmentList);

		// 准备岗位
		List<Role> roleList = roleService.findAll();
		ActionContext.getContext().put("roleList", roleList);
		return "saveUI";
	}

	/** 添加 */
	public String add() throws Exception {
		// 封装到对象中 (model是实体类型时, 可以使用model, 但要设置未封装的属性)
		model.setDepartment(departmentService.getById(departmentId));
		List<Role> roleList = roleService.getByIds(roleIds);
		model.setRoles(new HashSet<Role>(roleList));

		// 设置密码为1234, 要使用MD5摘要()
		String md5Digest = DigestUtils.md5Hex("1234");
		model.setPassword(md5Digest);
		
		// 保存到数据库
		userService.save(model);
		return "toList";
	}

	/** 修改页面 */
	public String editUI() throws Exception {
		// 准备数据departmentList
		List<Department> topList = departmentService.findTopList();
		List<Department> departmentList = DepartmentUtils.getAllDepartments(topList);
		ActionContext.getContext().put("departmentList", departmentList);

		// 准备岗位
		List<Role> roleList = roleService.findAll();
		ActionContext.getContext().put("roleList", roleList);

		// 准备回显的数据
		User user = userService.getById(model.getId());
		ActionContext.getContext().getValueStack().push(user);
		if (user.getDepartment() != null) {
			departmentId = user.getDepartment().getId();
		}
		if (user.getRoles() != null) {
			roleIds = new Long[user.getRoles().size()];
			int index = 0;
			for (Role role : user.getRoles()) {
				roleIds[index++] = role.getId();
			}
		}

		return "saveUI";
	}

	/** 修改 */
	public String edit() throws Exception {
		// 从数据库中取出原对象
		User user = userService.getById(model.getId());

		// 设置要修改的属性
		user.setLoginName(model.getLoginName());
		user.setName(model.getName());
		user.setGender(model.getGender());
		user.setPhoneNumber(model.getPhoneNumber());
		user.setEmail(model.getEmail());
		user.setDescription(model.getDescription());
		user.setDepartment(departmentService.getById(departmentId));
		List<Role> roleList = roleService.getByIds(roleIds);
		user.setRoles(new HashSet<Role>(roleList));
		// 更新到数据库
		userService.update(user);
		return "toList";
	}

	/** 初始化密码1234 **/
	public String initPassword() throws Exception {
		// 从数据库中取出原对象
		User user = userService.getById(model.getId());
		// 设置要修改的属性
		String md5Digest = DigestUtils.md5Hex("1234");
		user.setPassword(md5Digest);
		// 更新到数据库,使用MD5摘要
		userService.update(user);
		return "toList";
	}

	public Long getDepartmentId() {
		return departmentId;
	}

	public void setDepartmentId(Long departmentId) {
		this.departmentId = departmentId;
	}

	public Long[] getRoleIds() {
		return roleIds;
	}

	public void setRoleIds(Long[] roleIds) {
		this.roleIds = roleIds;
	}
}

　　

2. 新增service方法

3. jsp页面内容

    list.jsp

    

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%String path = request.getContextPath();%>
<html>
<head>
    <title>用户列表</title>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <script language="javascript" type="text/javascript" src=<%=path%>/script/jquery.js"></script>
     <script language="javascript" type="text/javascript" src=<%=path%>/script/pageCommon.js"></script>
     <script language="javascript" type="text/javascript" src=<%=path%>/script/PageUtils.js"></script>
      <link type="text/css" rel="stylesheet" href="<%=path%>/style/blue/pageCommon.css"/>
    <script type="text/javascript">
    </script>
</head>
<body>

<div id="Title_bar">
    <div id="Title_bar_Head"> 
        <div id="Title_Head"></div>
        <div id="Title"><!--页面标题-->
            <img border="0" width="13" height="13" src="${pageContext.request.contextPath}/style/images/title_arrow.gif"/> 用户管理
        </div>
        <div id="Title_End"></div>
    </div>
</div>

<div id="MainArea">
    <table cellspacing="0" cellpadding="0" class="TableStyle">
       
        <!-- 表头-->
        <thead>
            <tr align=center valign=middle id=TableTitle>
                <td width="100">登录名</td>
                <td width="100">姓名</td>
                <td width="100">所属部门</td>
                <td width="200">岗位</td>
                <td>备注</td>
                <td>相关操作</td>
            </tr>
        </thead>
        
        <!--显示数据列表-->
        <tbody id="TableData" class="dataContainer" datakey="userList">
        
        <s:iterator value="#userList">
            <tr class="TableDetail1 template">
                <td>${loginName} </td>
                <td>${name} </td>
                <td>${department.name} </td>
                <td>
                	<s:iterator value="roles">
                		${name}
                	</s:iterator>
                </td>
                <td>${description} </td>
                <td>
                	<s:a action="user_delete?id=%{id}" onclick="return delConfirm()">删除</s:a>
                    <s:a action="user_editUI?id=%{id}">修改</s:a>
					<s:a action="user_initPassword?id=%{id}" onclick="return window.confirm('您确定要初始化密码为1234吗？')">初始化密码</s:a>
                </td>
            </tr>
        </s:iterator> 
            
        </tbody>
    </table>
    
    <!-- 其他功能超链接 -->
    <div id="TableTail">
        <div id="TableTail_inside">
            <s:a action="user_addUI"><img src="${pageContext.request.contextPath}/style/images/createNew.png" /></s:a>
        </div>
    </div>
</div>

</body>
</html>

　　saveUI.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%String path = request.getContextPath();%>
<html>
<head>
	<title>用户信息</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
       <script language="javascript" type="text/javascript" src=<%=path%>/script/jquery.js"></script>
    <script language="javascript" type="text/javascript" src=<%=path%>/script/pageCommon.js"></script>
    <script language="javascript" type="text/javascript" src=<%=path%>/script/PageUtils.js"></script>
   
    <link type="text/css" rel="stylesheet" href="<%=path%>/style/blue/pageCommon.css"/>
    <script type="text/javascript">
    </script>
</head>
<body>

<!-- 标题显示 -->
<div id="Title_bar">
    <div id="Title_bar_Head">
        <div id="Title_Head"></div>
        <div id="Title"><!--页面标题-->
            <img border="0" width="13" height="13" src="<%=path%>/style/images/title_arrow.gif"/> 用户信息
        </div>
        <div id="Title_End"></div>
    </div>
</div>

<!--显示表单内容-->
<div id=MainArea>

    <s:form action="user_%{id == null ? 'add' : 'edit'}">
    	<s:hidden name="id"></s:hidden>
        
        <div class="ItemBlock_Title1"><!-- 信息说明 --><div class="ItemBlock_Title1">
        	<img border="0" width="4" height="7" src="<%=path%>/style/blue/images/item_point.gif" /> 用户信息 </div> 
        </div>
        
        <!-- 表单内容显示 -->
        <div class="ItemBlockBorder">
            <div class="ItemBlock">
                <table cellpadding="0" cellspacing="0" class="mainForm">
                    <tr><td width="100">所属部门</td>
                        <td>
                        	<s:select name="departmentId" cssClass="SelectStyle"
                        		list="#departmentList" listKey="id" listValue="name"
                        		headerKey="" headerValue="==请选择部门=="
                        	/>
                        </td>
                    </tr>
                    <tr><td>登录名</td>
                        <td><s:textfield name="loginName" cssClass="InputStyle"/> *
							（登录名要唯一）
						</td>
                    </tr>
                    <tr><td>姓名</td>
                        <td><s:textfield name="name" cssClass="InputStyle"/> *</td>
                    </tr>
					<tr><td>性别</td>
                        <td>
                        	<%--
							<s:radio name="gender" list="%{ #{'男':'男', '女':'女'} }"></s:radio>
							<s:radio name="gender" list="#{'男':'男', '女':'女'}"></s:radio>
                        	 --%>
							<s:radio name="gender" list="{'男', '女'}"></s:radio>

						</td>
                    </tr>
					<tr><td>联系电话</td>
                        <td><s:textfield name="phoneNumber" cssClass="InputStyle"/></td>
                    </tr>
                    <tr><td>E-mail</td>
                        <td><s:textfield name="email" cssClass="InputStyle"/></td>
                    </tr>
                    <tr><td>备注</td>
                        <td><s:textarea name="description" cssClass="TextareaStyle"></s:textarea></td>
                    </tr>
                </table>
            </div>
        </div>
        
		<div class="ItemBlock_Title1"><!-- 信息说明 --><div class="ItemBlock_Title1">
        	<img border="0" width="4" height="7" src="<%=path%>/style/blue/images/item_point.gif" /> 岗位设置 </div> 
        </div>
        
        <!-- 表单内容显示 -->
        <div class="ItemBlockBorder">
            <div class="ItemBlock">
                <table cellpadding="0" cellspacing="0" class="mainForm">
                    <tr>
						<td width="100">岗位</td>
                        <td>
                        	<s:select name="roleIds" cssClass="SelectStyle"
                        		multiple="true" size="10" 
                        		list="#roleList" listKey="id" listValue="name"
                        	/>
							按住Ctrl键可以多选或取消选择
                        </td>
                    </tr>
                </table>
            </div>
        </div>		
		
        <!-- 表单操作 -->
        <div id="InputDetailBar">
            <input type="image" src="<%=path%>/style/images/save.png"/>
            <a href="javascript:history.go(-1);"><img src="<%=path%>/style/images/goBack.png"/></a>
        </div>
    </s:form>
</div>

<div class="Description">
	说明：<br />
	1，用户的登录名要唯一，在填写时要同时检测是否可用。<br />
	2，新建用户后，密码被初始化为"1234"。<br />
	3，密码在数据库中存储的是MD5摘要（不是存储明文密码）。<br />
	4，用户登录系统后可以使用“个人设置→修改密码”功能修改密码。<br />
	5，新建用户后，会自动指定默认的头像。用户可以使用“个人设置→个人信息”功能修改自已的头像<br />
	6，修改用户信息时，登录名不可修改。
</div>

</body>
</html>