系统管理模块_部门管理_实现基本的增删改查功能

Posted 2020-10-15 未来_我来

系统管理模块_部门管理1_实现基本的增删改查功能

先不考虑上级部门

设计实体、表

1、设计实体

Department.java

 

public class Department {
    private Long id;
    private String name;
    private String description;
    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;
    }    
}

 

2、写映射文件

Department.hbm.xml

 

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

 

3、把映射文件添加到hibernate.cfg.xml中

<mapping resource="cn/itcast/oa/domain/Department.hbm.xml" />

4、创建表

运行测试类SpringTest.java中的testSessionFactory()方法创建SessionFactory即可

分析功能与请求

增删改查共4个功能，6个请求，需要在Action中有6个对应的处理方法。

作用	方法名	返回值	对应的JSP页面
列表	list()	list	list.jsp
删除	delete()	toList
添加页面	addUI()	addUI	addUI.jsp
添加	add()	toList
修改页面	editUI()	editUI	editUI.jsp
修改	edit()	toList

toList的配置为：type="redirectAction" actionName=“xxAction_list”

<result name="toList" type="redirectAction">role_list</result>

 

实现功能

1，写Action类，写Action中的方法，确定Service中的方法。

DepartmentAction.java

 

@Controller
@Scope("prototype")
public class DepartmentAction extends ActionSupport implements ModelDriven<Department>{//这里也需要转递参数id,名称和说明，实体里都有了。所以要实现ModelDriven,封装表单当中传递过来的参数
    
    //有接口有实现类，想用它就创建，采用@Resource注入
    @Resource
    private DepartmentService departmentService;

    private Department model = new Department();
    
    public Department getModel() {
        return model;
    }
    /**
     * 列表
     */
    public String list() throws Exception {
        List<Department> departmentList = departmentService.findAll();//findAll()在DepartmentService接口中创建
        ActionContext.getContext().put("departmentList", departmentList);//放在map里面方便拿，#号获取
        
        return "list";
    }
    /**
     * 删除
     */
    public String delete() throws Exception {
        departmentService.delete(model.getId());//delete()在DepartmentService接口中创建
        return "toList";
    }
    /**
     * 添加页面
     */
    public String addUI() throws Exception {
        return "saveUI";
    }
    /**
     * 添加
     */
    public String add() throws Exception {
        //封装到对象中
        /*Department department = new Department();
        department.setName(model.getName());
        department.setDescription(model.getDescription());
        //保存到数据库中
        departmentService.save(department);*/
        
        //添加的方法可以简化成一行代码
        departmentService.save(model);
        return "toList";
    }
    /**
     * 修改页面
     */
    public String editUI() throws Exception {
        //准备回显的数据
        Department department =departmentService.getById(model.getId());//把回显的数据的id告诉我
        ActionContext.getContext().getValueStack().push(department);//把它放到栈顶就能回显
        return "saveUI";
    }
    /**
     * 修改
     */
    public String edit() throws Exception {
        //1.从数据库中取出原对象
        Department department = departmentService.getById(model.getId());
        //2.设置要修改的属性
        department.setName(model.getName());
        department.setDescription(model.getDescription());
        //3.更新到数据库中
        departmentService.update(department);
        return "toList";
    }
}

 

在struts.xml文件中配置

 

　　　　　<!-- 部门管理 -->
        <action name="department_*" class="departmentAction" method="{1}">
            <result name="list">/WEB-INF/jsp/departmentAction/list.jsp</result>
            <result name="saveUI">/WEB-INF/jsp/departmentAction/saveUI.jsp</result>
            <result name="toList" type="redirectAction">department_list</result>
        </action>

 

要想找到这个bean，得在DepartmetAction类上声明：

@Controller

@Scope("prototype")

 2，写Service方法，确定Dao中的方法。

DepartmentService.java

 

//接口中只有方法的声明，没有方法的实现
public interface DepartmentService {

    List<Department> findAll();

    void delete(Long id);

    void save(Department model);

    Department getById(Long id);

    void update(Department department);
}

 

DepartmnetServiceImpl.java

//在Action中要调用Service，要写下面两个注解
@Service
@Transactional    //业务层要管理实务，控制开关事务
public class DepartmentServiceImpl implements DepartmentService{
    
    //Service里要调用Dao，得到它通过注入
    @Resource
    private DepartmentDao departmentDao;

    public List<Department> findAll() {
        return departmentDao.findAll();
    }

    public void delete(Long id) {
        departmentDao.delete(id);
    }

    public void save(Department model) {
        departmentDao.save(model);
    }

    public Department getById(Long id) {
        return departmentDao.getById(id);
    }

    public void update(Department department) {
        departmentDao.update(department);
    }
}

3，写Dao方法。

DepartmentDao.java

 

public interface DepartmentDao extends BaseDao<Department>{
}

 

DepartmentDaoImpl.java

//加上这个注解交给容器管理，Service就能
@Repository
public class DepartmentDaoImpl extends BaseDaoImpl<Department> implements DepartmentDao {
}

4，写JSP

把美工做好的页面代码拷过来

修改为正确的路径

list.jsp

 

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%@ taglib prefix="s" uri="/struts-tags" %>
 3 <html>
 4 <head>
 5     <title>部门列表</title>
 6     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 7     <script language="javascript" src="${pageContext.request.contextPath}/script/jquery.js"></script>
 8     <script language="javascript" src="${pageContext.request.contextPath}/script/pageCommon.js" charset="utf-8"></script>
 9     <script language="javascript" src="${pageContext.request.contextPath}/script/PageUtils.js" charset="utf-8"></script>
10     <link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/style/blue/pageCommon.css" />
11     <script type="text/javascript">
12     </script>
13 </head>
14 <body>
15  
16 <div id="Title_bar">
17     <div id="Title_bar_Head">
18         <div id="Title_Head"></div>
19         <div id="Title"><!--页面标题-->
20             <img border="0" width="13" height="13" src="${pageContext.request.contextPath}/style/images/title_arrow.gif"/> 部门管理
21         </div>
22         <div id="Title_End"></div>
23     </div>
24 </div>
25 
26 <div id="MainArea">
27     <table cellspacing="0" cellpadding="0" class="TableStyle">
28        
29         <!-- 表头-->
30         <thead>
31             <tr align=center valign=middle id=TableTitle>
32                 <td width="150px">部门名称</td>
33                 <td width="150px">上级部门名称</td>
34                 <td width="200px">职能说明</td>
35                 <td>相关操作</td>
36             </tr>
37         </thead>
38 
39         <!--显示数据列表-->
40         <tbody id="TableData" class="dataContainer" datakey="departmentList">
41         
42         <s:iterator value="#departmentList">
43             <tr class="TableDetail1 template">
44                 <td>${name}&nbsp;</td>
45                 <td>${parent.name}&nbsp;</td>
46                 <td>${description}&nbsp;</td>
47                 <td><s:a action="department_delete?id=%{id}" onClick="return window.confirm(\'这将删除所有的下级部门，您确定要删除吗？\')" >删除</s:a>
48                     <s:a action="department_editUI?id=%{id}">修改</s:a>
49                 </td>
50             </tr>
51         </s:iterator>
52         </tbody>
53     </table>
54     
55     <!-- 其他功能超链接 -->
56     <div id="TableTail">
57         <div id="TableTail_inside">
58             <s:a action="department_addUI"><img src="${pageContext.request.contextPath}/style/images/createNew.png" /></s:a>
59         </div>
60     </div>
61 </div>
62 
63 <!--说明-->    
64 <div id="Description"> 
65     说明：<br />
66     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 />
67     2，点击部门名称，可以查看此部门相应的下级部门列表。<br />
68     3，删除部门时，同时删除此部门的所有下级部门。
69 </div>
70 </body>
71 </html>

 

saveUI.jsp

 1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 2 <%@ taglib prefix="s" uri="/struts-tags" %>
 3 <html>
 4 <head>
 5     <title>部门设置</title>
 6     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 7     <script language="javascript" src="${pageContext.request.contextPath}/script/jquery.js"></script>
 8     <script language="javascript" src="${pageContext.request.contextPath}/script/pageCommon.js" charset="utf-8"></script>
 9     <script language="javascript" src="${pageContext.request.contextPath}/script/PageUtils.js" charset="utf-8"></script>
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