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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：
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> </td>
46 <td>${parent.name} </td>
47 <td>${description} </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="${pageContext.request.contextPath}/style/images/createNew.png" /></s:a>
60 </div>
61 </div>
62 </div>
63
64 <!--说明-->
65 <div id="Description">
66 说明：<br />
67 1，列表页面只显示一层的（同级的）部门数据，默认显示最顶级的部门列表。<br />
68 2，点击部门名称，可以查看此部门相应的下级部门列表。<br />
69 3，删除部门时，同时删除此部门的所有下级部门。
70 </div>
71
72 </body>
73 </html>
list.jsp
1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
2 <%@ taglib prefix="s" uri="/struts-tags"%>
3
4 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
5
6 <html>
7 <head>
8 <title>部门设置</title>
9 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
10 <script language="javascript" src="${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：
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)：
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
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：
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。
时间： 2024-10-24 19:59:28