一、分析
1，设计实体/表
设计实体 --> JavaBean --> hbm.xml --> 建表
2，分析有几个功能，对应几个请求。
3，实现功能：
1，写Action类，写Action中的方法，确定Service中的方法。
2，写Service方法，确定Dao中的方法。
3，写Dao方法。
4，写JSP
============================
请求数量地址栏
转发1 不变
重定向2 变化
增删改查共4个功能，需要6个请求。
所以需要相应的6个Action方法，每个Action方法处理一种请求。
作用方法名返回值对应的页面
----------------------------------------------------
列表list()listlist.jsp
删除delete()toList
添加页面addUI()addUIaddUI.jsp
添加add()toList
修改页面editUI()editUIeditUI.jsp
修改edit()toList
<result name="toList" type="redirectAction">role_list</result>
role_* ---> {1}
role_listlist
role_addUIaddUI
role_deletedelete
二、代码
1.Action层
package cn.itcast.oa.view.action; import java.util.List; import javax.annotation.Resource; import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller; import cn.itcast.oa.domain.Role;
import cn.itcast.oa.service.RoleService; import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven; @Controller
@Scope("prototype")
public class RoleAction extends ActionSupport implements ModelDriven<Role> { private static final long serialVersionUID = 1L; @Resource
private RoleService roleService; // private Long id;
// private String name;
// private String description; private Role model = new Role(); public Role getModel() {
return model;
} /** 列表 */
public String list() throws Exception {
List<Role> roleList = roleService.findAll();
ActionContext.getContext().put("roleList", roleList);
return "list";
} /** 删除 */
public String delete() throws Exception {
roleService.delete(model.getId());
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
// Role role = new Role();
// role.setName(model.getName());
// role.setDescription(model.getDescription());
//
// // 保存到数据库
// roleService.save(role); roleService.save(model); return "toList";
} /** 修改页面 */
public String editUI() throws Exception {
// 准备回显的数据
Role role = roleService.getById(model.getId());
ActionContext.getContext().getValueStack().push(role); return "saveUI";
} /** 修改 */
public String edit() throws Exception {
// 1，从数据库中获取原对象
Role role = roleService.getById(model.getId()); // 2，设置要修改的属性
role.setName(model.getName());
role.setDescription(model.getDescription()); // 3，更新到数据库
roleService.update(role); return "toList";
} // --- // 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.Service层
package cn.itcast.oa.service.impl; import java.util.List; import javax.annotation.Resource; import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional; import cn.itcast.oa.dao.RoleDao;
import cn.itcast.oa.domain.Role;
import cn.itcast.oa.service.RoleService; @Service
@Transactional
public class RoleServiceImpl implements RoleService { @Resource
private RoleDao roleDao; public Role getById(Long id) {
return roleDao.getById(id);
} public void delete(Long id) {
roleDao.delete(id);
} public void save(Role role) {
roleDao.save(role);
} public void update(Role role) {
roleDao.update(role);
} public List<Role> findAll() {
return roleDao.findAll();
} }
3.Dao层
@Repository //这里写了@Repository，则父类BaseDaoImpl的sessionFactory可以注入
public class RoleDaoImpl extends BaseDaoImpl<Role> implements RoleDao { }
4.View层
(1)saveUI.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>岗位设置</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script language="javascript" src="${pageContext.request.contextPath}/script/jquery.js"></script>
<script language="javascript" src="${pageContext.request.contextPath}/script/pageCommon.js" charset="utf-8"></script>
<script language="javascript" src="${pageContext.request.contextPath}/script/PageUtils.js" charset="utf-8"></script>
<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/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="${pageContext.request.contextPath}/style/images/title_arrow.gif"/> 岗位设置
</div>
<div id="Title_End"></div>
</div>
</div> <!--显示表单内容-->
<div id="MainArea"> <s:form action="role_%{ id == null ? 'add' : 'edit' }">
<s:hidden name="id"></s:hidden> <div class="ItemBlock_Title1"><!-- 信息说明<DIV CLASS="ItemBlock_Title1">
<IMG BORDER="0" WIDTH="4" HEIGHT="7" SRC="${pageContext.request.contextPath}/style/blue/images/item_point.gif" /> 岗位信息 </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">岗位名称</td>
<td><s:textfield name="name" cssClass="InputStyle" /> *</td>
</tr>
<tr>
<td>岗位说明</td>
<td><s:textarea name="description" cssClass="TextareaStyle"></s:textarea></td>
</tr>
</table>
</div>
</div> <!-- 表单操作 -->
<div id="InputDetailBar">
<input type="image" src="${pageContext.request.contextPath}/style/images/save.png"/>
<a href="javascript:history.go(-1);"><img src="${pageContext.request.contextPath}/style/images/goBack.png"/></a>
</div>
</s:form>
</div> </body>
</html>
(2)list.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body> <%--
<s:iterator value="#roleList">
<s:property value="id"/>,
<s:property value="%{name}"/>,
<s:property value="description"/>,
<s:a action="role_delete?id=%{id}" onclick="return confirm('确定要删除吗？')">删除</s:a>,
<s:a action="role_editUI?id=%{id}">修改</s:a>
<br/>
</s:iterator>
--%> <s:iterator value="#roleList">
${id},
${name},
${description},
<s:a action="role_delete?id=%{id}" onclick="return confirm('确定要删除吗？')">删除</s:a>,
<s:a action="role_editUI?id=%{id}">修改</s:a>
<br/>
</s:iterator> <br/>
<s:a action="role_addUI">添加</s:a> </body>
</html>