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OA项目9:部门管理的上下级部门的功能实现

时间:2014-10-22 17:18:55      阅读:179      评论:0      收藏:0      [点我收藏+]

标签:des   style   blog   http   color   io   os   ar   使用   

首注:本学习教程为传智播客汤阳光讲师所公布的免费OA项目视频我的文字版实践笔记,本人用此来加强巩固自己开发知识,如有网友转载,请注明。谢谢。

一 功能分析:

  1,列表页面只显示一层的(同级的)部门数据,默认显示最顶级的部门列表。
  2,点击部门名称,可以查看此部门相应的下级部门列表。
  3,删除部门时,同时删除此部门的所有下级部门。

  4,上级部门的列表是有层次结构的(树形)。

  5,如果是修改:上级部门列表中不能显示当前修改的部门及其子孙部门。因为不能选择自已或自已的子部门作为上级部门。

二 首先,将前台页面作修改,内容如下:

bubuko.com,布布扣
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%@ taglib prefix="s" uri="/struts-tags"%> 
 3 
 4 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 5 <html>
 6 <head>
 7     <title>部门列表</title>
 8     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 9     <script language="javascript" src="${pageContext.request.contextPath}/script/jquery.js"></script>
10     <script language="javascript" src="${pageContext.request.contextPath}/script/pageCommon.js" charset="utf-8"></script>
11     <script language="javascript" src="${pageContext.request.contextPath}/script/PageUtils.js" charset="utf-8"></script>
12     <link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/style/blue/pageCommon.css" />
13     <script type="text/javascript">
14     </script>
15 </head>
16 <body>
17  
18 <div id="Title_bar">
19     <div id="Title_bar_Head">
20         <div id="Title_Head"></div>
21         <div id="Title"><!--页面标题-->
22             <img border="0" width="13" height="13" src="${pageContext.request.contextPath}/style/images/title_arrow.gif"/> 部门管理
23         </div>
24         <div id="Title_End"></div>
25     </div>
26 </div>
27 
28 <div id="MainArea">
29     <table cellspacing="0" cellpadding="0" class="TableStyle">
30        
31         <!-- 表头-->
32         <thead>
33             <tr align=center valign=middle id=TableTitle>
34                 <td width="150px">部门名称</td>
35                 <td width="150px">上级部门名称</td>
36                 <td width="200px">职能说明</td>
37                 <td>相关操作</td>
38             </tr>
39         </thead>
40 
41         <!--显示数据列表-->
42         <tbody id="TableData" class="dataContainer" >
43             <s:iterator value="#departmentList">
44             <tr class="TableDetail1 template">
45                 <td><s:a action="department_list?parentId=%{id}">${name}</s:a>&nbsp;</td>
46                 <td>${parent.name}&nbsp;</td>
47                 <td>${description}&nbsp;</td>
48                 <td><s:a onClick="return window.confirm(‘这将删除所有的下级部门,您确定要删除吗?‘)" action="department_delete?id=%{id}">删除</s:a>
49                     <s:a action="department_editUI?id=%{id}">修改</s:a>
50                 </td>
51             </tr>
52             </s:iterator>
53         </tbody>
54     </table>
55     
56     <!-- 其他功能超链接 -->
57     <div id="TableTail">
58         <div id="TableTail_inside">
59             <s:a action="department_addUI"><img src="${pageContext.request.contextPath}/style/images/createNew.png" /></s:a>
60         </div>
61     </div>
62 </div>
63 
64 <!--说明-->    
65 <div id="Description"> 
66     说明:<br />
67     1,列表页面只显示一层的(同级的)部门数据,默认显示最顶级的部门列表。<br />
68     2,点击部门名称,可以查看此部门相应的下级部门列表。<br />
69     3,删除部门时,同时删除此部门的所有下级部门。
70 </div>
71 
72 </body>
73 </html>
list.jsp
bubuko.com,布布扣
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%@ taglib prefix="s" uri="/struts-tags"%>
 3 
 4 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 5 
 6 <html>
 7 <head>
 8     <title>部门设置</title>
 9     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
10     <script language="javascript" src="${pageContext.request.contextPath}/script/jquery.js"></script>
11     <script language="javascript" src="${pageContext.request.contextPath}/script/pageCommon.js" charset="utf-8"></script>
12     <script language="javascript" src="${pageContext.request.contextPath}/script/PageUtils.js" charset="utf-8"></script>
13     <link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/style/blue/pageCommon.css" />
14 </head>
15 <body>
16 
17 <!-- 标题显示 --> 
18 <div id="Title_bar">
19     <div id="Title_bar_Head">
20         <div id="Title_Head"></div>
21         <div id="Title"><!--页面标题-->
22             <img border="0" width="13" height="13" src="${pageContext.request.contextPath}/style/images/title_arrow.gif"/> 部门信息
23         </div>
24         <div id="Title_End"></div>
25     </div>
26 </div>
27 
28 <!--显示表单内容-->
29 <div id=MainArea>
30     <s:form action="department_%{id == null ? ‘add‘:‘edit‘}">
31         <div class="ItemBlock_Title1"><!-- 信息说明<DIV CLASS="ItemBlock_Title1">
32             <IMG BORDER="0" WIDTH="4" HEIGHT="7" SRC="${pageContext.request.contextPath}/style/blue/images/item_point.gif" /> 部门信息 </DIV>  -->
33         </div>
34         <s:hidden name="id"></s:hidden>
35         <!-- 表单内容显示 -->
36         <div class="ItemBlockBorder">
37             <div class="ItemBlock">
38                 <table cellpadding="0" cellspacing="0" class="mainForm">
39                     <tr><td width="100">上级部门</td>
40                         <td>
41                             <s:select name="parentId" list="#departmentList"
42                              cssClass="SelectStyle" listKey="id" listValue="name" headerKey="" headerValue="==请选择部门=="/>
43                         </td>
44                     </tr>
45                     <tr><td>部门名称</td>
46                         <td><s:textfield name="name" cssClass="InputStyle"/> *</td>
47                     </tr>
48                     <tr><td>职能说明</td>
49                         <td><s:textarea name="description" cssClass="TextareaStyle"></s:textarea></td>
50                     </tr>
51                 </table>
52             </div>
53         </div>
54         
55         <!-- 表单操作 -->
56         <div id="InputDetailBar">
57             <input type="image" src="${pageContext.request.contextPath}/style/images/save.png"/>
58             <a href="javascript:history.go(-1);"><img src="${pageContext.request.contextPath}/style/images/goBack.png"/></a>
59         </div>
60     </s:form>
61 </div>
62 
63 <div class="Description">
64     说明:<br />
65     1,上级部门的列表是有层次结构的(树形)。<br/>
66     2,如果是修改:上级部门列表中不能显示当前修改的部门及其子孙部门。因为不能选择自已或自已的子部门作为上级部门。<br />
67 </div>
68 
69 </body>
70 </html>
saveUI.jsp

三 修改action对应的方法,修改后action内容如下:

bubuko.com,布布扣
  1 package cn.clear.oa.view.action;
  2 
  3 import java.util.List;
  4 
  5 import javax.annotation.Resource;
  6 
  7 import org.springframework.context.annotation.Scope;
  8 import org.springframework.stereotype.Controller;
  9 
 10 import cn.clear.oa.domain.Department;
 11 import cn.clear.oa.service.DepartmentService;
 12 
 13 import com.opensymphony.xwork2.ActionContext;
 14 import com.opensymphony.xwork2.ActionSupport;
 15 import com.opensymphony.xwork2.ModelDriven;
 16 
 17 @Controller
 18 @Scope("prototype")
 19 public class DepartmentAction extends ActionSupport implements ModelDriven<Department>{
 20 
 21     /**
 22      * 
 23      */
 24     private static final long serialVersionUID = 1L;
 25     @Resource
 26     private DepartmentService departmentService; 
 27     private Department model = new Department();
 28     private Long parentId;
 29     
 30     public Department getModel() {
 31         // TODO Auto-generated method stub
 32         return model;
 33     }
 34     
 35 
 36     public String list() throws Exception {
 37         List<Department> departmentList = null;
 38         if(parentId == null){
 39             departmentList = departmentService.findTopList();
 40         }else{
 41             departmentList = departmentService.findChildren(parentId);
 42         }
 43         ActionContext.getContext().put("departmentList", departmentList);
 44         return "list";
 45     }
 46     public String delete() throws Exception {
 47         
 48         departmentService.delete(model.getId());
 49         
 50         return "toList";
 51     }
 52     public String add() throws Exception {
 53         //封装信息到对象中
 54         Department parent = departmentService.findById(parentId);
 55         model.setParent(parent);
 56         departmentService.save(model);
 57         return "toList";
 58     }
 59     public String addUI() throws Exception {
 60         //准备departmentList数据
 61         List<Department> departmentList = departmentService.findAll();
 62         //放在值栈中的map中
 63         ActionContext.getContext().put("departmentList", departmentList);
 64         return "saveUI";
 65     }
 66     public String edit() throws Exception {
 67         
 68         Department department = departmentService.findById(model.getId());
 69         department.setName(model.getName());
 70         department.setDescription(model.getDescription());
 71         department.setParent(departmentService.findById(parentId));//设置所属的上级部门
 72         departmentService.update(department);
 73         return "toList";
 74     } 
 75     public String editUI() throws Exception {
 76         //准备departmentList数据
 77         List<Department> departmentList = departmentService.findAll();
 78         //放在值栈中的map中
 79         ActionContext.getContext().put("departmentList", departmentList);
 80         
 81         Department department = departmentService.findById(model.getId());
 82         //将对象放在栈顶
 83         ActionContext.getContext().getValueStack().push(department);
 84         //回显上级部门
 85         if(department.getParent()!=null){
 86             parentId = department.getParent().getId();
 87         }
 88         return "saveUI";
 89     }
 90 
 91     //------
 92     public Long getParentId() {
 93         return parentId;
 94     }
 95 
 96 
 97     public void setParentId(Long parentId) {
 98         this.parentId = parentId;
 99     }
100 
101 }
DepartmentAction.java

四 在显示顶级部门和下级部门时需要增加service方法。直接在service方法中引入操作数据库的代码,所以service层内容修改如下(对于分层结构的调整,后面还要进行修改):

bubuko.com,布布扣
 1 package cn.clear.oa.service;
 2 
 3 import java.util.List;
 4 
 5 import cn.clear.oa.domain.Department;
 6 
 7 public interface DepartmentService {
 8 
 9     List<Department> findAll();
10 
11     void delete(Long id);
12 
13     void save(Department department);
14 
15     Department findById(Long id);
16 
17     void update(Department department);
18     /**
19      * 查询顶级部门列表
20      * @return
21      */
22     List<Department> findTopList();
23     /**
24      * 查询子部门列表
25      * @return
26      */
27 
28     List<Department> findChildren(Long parentId);
29 
30 
31 }
DepartmentService.java
bubuko.com,布布扣
 1 package cn.clear.oa.service.impl;
 2 
 3 import java.util.List;
 4 
 5 import javax.annotation.Resource;
 6 
 7 import org.hibernate.SessionFactory;
 8 import org.springframework.stereotype.Service;
 9 import org.springframework.transaction.annotation.Transactional;
10 
11 import cn.clear.oa.dao.DepartmentDao;
12 import cn.clear.oa.domain.Department;
13 import cn.clear.oa.service.DepartmentService;
14 @Service
15 @Transactional
16 @SuppressWarnings("unchecked")
17 public class DepartmentServiceImpl implements DepartmentService{
18     
19     @Resource
20     private DepartmentDao departmentDao;
21     
22     @Resource
23     private SessionFactory sessionFactory;
24     
25 
26     public List<Department> findAll() {
27 
28         return departmentDao.findAll();
29     }
30 
31     public void delete(Long id) {
32         
33         departmentDao.delete(id);
34         
35     }
36 
37     public void save(Department department) {
38         
39         departmentDao.save(department);
40     }
41 
42     public Department findById(Long id) {
43 
44         return departmentDao.findById(id);
45     }
46 
47     public void update(Department department) {
48         
49         departmentDao.update(department);
50     }
51 
52     public List<Department> findTopList() {
53         // TODO Auto-generated method stub
54         return sessionFactory.getCurrentSession().createQuery(//
55                 "FROM Department d WHERE d.parent IS NULL")//
56                 .list();
57     }
58 
59     public List<Department> findChildren(Long parentId) {
60         // TODO Auto-generated method stub
61         return sessionFactory.getCurrentSession().createQuery(//
62                 "FROM Department d WHERE d.parent.id = ?")//
63                 .setParameter(0, parentId)
64                 .list();
65     }
66 
67 }
DepartmentServiceImpl.java

五 因为删除上级部门要连同下级部门一并删除,所以要使用到级联操作;而我们service层直接使用session会导致懒加载的问题,所以要修改下映射文件内容,如下:

bubuko.com,布布扣
 1 <?xml version="1.0"?>
 2 <!DOCTYPE hibernate-mapping PUBLIC 
 3     "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
 4     "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
 5 
 6 <hibernate-mapping package="cn.clear.oa.domain">
 7     <class name="Department" table="oa_department">
 8         <id name="id"><generator class="native"/></id>
 9         <property name="name"/>
10         <property name="description"/>
11         <!-- users属性,本类与User的1对多 -->
12         <set name="users">
13             <key column="departmentId"></key>
14             <one-to-many class="User"/>
15         </set>
16         <!-- parent属性,本类与(上级)Department的多对1 -->
17         <many-to-one name="parent" class="Department" column="parentId" lazy="false"></many-to-one>
18         <!-- children属性,本类与(下级)Department的1对多 -->
19         <set name="children" cascade="delete" lazy="false">
20             <key column="parentId"></key>
21             <one-to-many class="Department"/>
22         </set>
23     </class>
24 </hibernate-mapping>
Department.hbm.xml

所有一切都修改完毕之后,启动服务器,测试即可。

OA项目9:部门管理的上下级部门的功能实现

标签:des   style   blog   http   color   io   os   ar   使用   

原文地址:http://www.cnblogs.com/clear5/p/4043649.html

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