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>
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