实战3--设计管理模块, 第三步, 实现具体功能
3. 实现功能
1. 写action, 写action中的方法, 确定service中的方法
2. 写service, 确定Dao中的方法
3. 写Dao方法
4. 写jsp
1. 完善action里的方法, 以确实service里需要写的方法, 因为action里要使用service, 所以先创建RoleService.java和RoleServiceImpl.java ,先不写方法, 通过action里调用方法的方式新建service里的方法
1) action里创建roleService实例, 加@Resource, 别忘了在RoleServiceImpl上加上@Service和@Transactional
2) action的方法里, 都通过service调用方法findAll(), delete(),save(),update(), getById()
3) 使用ModelDriven,
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>{
/*列表*/
@Resource
private RoleService roleService;
private Role model = new Role();
public Role getModel() {
return model;
}
public RoleService getRoleService() {
return roleService;
}
public void setRoleService(RoleService roleService) {
this.roleService = roleService;
}
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 {
roleService.save(model);
return "toList";
}
/*修改页面*/
public String editUI() throws Exception {
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";
}
}
2. 写service的实现类RoleServiceImpl, 调用roleDao的方法实现, 注意在roleDao前加@Resource
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;
@Override
public List<Role> findAll() {
return roleDao.findAll();
}
public void delete(Long id) {
roleDao.delete(id);
}
public void save(Role role) {
roleDao.save(role);
}
public Role getById(Long id) {
return roleDao.getById(id);
}
public void update(Role role) {
roleDao.update(role);
}
}
RoleService.java:
package cn.itcast.oa.service;
import java.util.List;
import cn.itcast.oa.domain.Role;
public interface RoleService {
//查询所有
List<Role> findAll();
void delete(Long id);
void save(Role role);
Role getById(Long id);
void update(Role role);
}
3. DAO功能都已实现完成
4. 写jsp文件, list.jsp, saveUI.jsp
list.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'list.jsp' starting page</title>
</head>
<body>
<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>
addUI.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'addUI.jsp' starting page</title>
</head>
<body>
<s:form action="role_add">
<s:textfield name="name"></s:textfield><br/>
<s:textarea name="description"></s:textarea><br/>
<s:submit value="提交"></s:submit>
</s:form>
</body>
</html>
editUI.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'editUI.jsp' starting page</title>
</head>
<body>
<s:form action="role_edit">
<s:hidden name="id"></s:hidden>
<s:textfield name="name"></s:textfield><br/>
<s:textarea name="description"></s:textarea><br/>
<s:submit value="提交"></s:submit>
</s:form>
<s:debug></s:debug>
</body>
</html>
整合成saveUI.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%String path = request.getContextPath();%>
<html>
<head>
<title>岗位设置</title>
<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"/> 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="<%=path%>/style/images/save.png"/>
<a href="javascript:history.go(-1);"><img src="<%=path%>/style/images/goBack.png"/></a>
</div>
</s:form>
</div>
</body>
</html>
list.jsp也做的漂亮点:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%String path = request.getContextPath();%>
<html>
<head>
<title>岗位列表</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="<%=path%>/style/images/title_arrow.gif"/> 岗位管理
</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="200px">岗位名称</td>
<td width="300px">岗位说明</td>
<td>相关操作</td>
</tr>
</thead>
<!--显示数据列表-->
<tbody id="TableData" class="dataContainer" datakey="roleList">
<s:iterator value="#roleList">
<tr class="TableDetail1 template">
<td>${name} </td>
<td>${description} </td>
<td>
<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>
<s:a action="role_setPrivilegeUI?id=%{id}">设置权限</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="role_addUI"><img src="<%=path%>/style/images/createNew.png" /></s:a>
</div>
</div>
</div>
</body>
</html>
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