权限模块_使用权限_实现主页面的效果_显示左侧菜单&只显示有权限的菜单项

2023-08-02 23:08:40

权限模块使用权限实现主页面的效果

HomeAction.java

public class HomeAction extends ActionSupport {

    public String index() {

        return "index";

    }

    public String top() {

        return "top";

    }

    public String bottom() {

        return "bottom";

    }

    public String leaf() {

        return "leaf";

    }

    public String right() {

        return "right";

    }

}

index.jsp

<%@ page language="java" pageEncoding="UTF-8"%>

<html>

    <head>

        <title>Itcast OA</title>

        <%@ include file="/WEB-INF/jsp/public/commons.jspf"%>

        <script type="text/javascript"

            src="${pageContext.request.contextPath}/script/jquery_treeview/jquery.cookie.js"></script>

    </head>

    <frameset rows="100,*,25" framespacing=0 border=0 frameborder="0">

        <frame noresize name="TopMenu" scrolling="no"

            src="${pageContext.request.contextPath}/home_top.action">

        <frameset cols="180,*" id="resize">

            <frame noresize name="menu" scrolling="yes"

                src="${pageContext.request.contextPath}/home_left.action">

            <frame noresize name="right" scrolling="yes"

                src="${pageContext.request.contextPath}/home_right.action">

        </frameset>

        <frame noresize name="status_bar" scrolling="no"

            src="${pageContext.request.contextPath}/home_bottom.action">

    </frameset>

    <noframes>

        <body>

        </body>

    </noframes>

</html>

top.jsp

bottom.jsp

<%@ page language="java" pageEncoding="UTF-8"%>

<html>

<head>

    <title></title>

    <LINK href="${pageContext.request.contextPath}/style/blue/statusbar.css" type=text/css rel=stylesheet>

</head>

<body leftmargin=0 topmargin=0 marginwidth=0 marginheight=0>

<div id="StatusBar">

    <div id="Online">

        在线人员：共 <span class="OnlineUser" id="onlineUserNum"></span> 人<span class="OnlineView">

        <a href="javascript:void(0)">[查看在线名单]</a>

</span></div>

    <div id="Info">

        <a href="http://www.itcast.cn" title = "传智播客首页" target=_blank >传智播客首页</a> |

        <a href="http://bbs.itcast.cn" title = "传智播客BBS" target=_blank >传智播客BBS</a>

    </div>

    <DIV id=DesktopText>

        <a href="javascript:void(0)"><img border="0" src="${pageContext.request.contextPath}/style/images/top/text.gif"/> 便笺</a>

        <span id=TryoutInfo>

        </span>

        <span id="Version">

            <a href="javascript:void(0)">

                <img border="0" width="11" height="11" src="${pageContext.request.contextPath}/style/images/top/help.gif" />

                <img border="0" width="40" height="11" src="${pageContext.request.contextPath}/style/blue/images/top/version.gif" />

            </a>

        </span>

    </DIV>

</div>

</body>

</html>

left.jsp

right.jsp

<%@ page language="java" pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

    <head>

        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

        <title>无标题文档</title>

    </head>

    <body>

    </body>

</html>

WebRoot下的index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%-- 重定向到指定的页面,访问另外一个地址，request.getContextPath()加上当前应用程序名称

    转发：相当于方法调用，在一个应用程序内执行

--%>

<%

    response.sendRedirect(request.getContextPath() + "/home_index.action");

%>

再次访问首页http://localhost:8080/ItcastOA重定向到了http://localhost:8080/ItcastOA/home_index.action

权限模块_使用权限_显示左侧菜单1

<%@ page language="java" pageEncoding="UTF-8"%>

<html>

    <head>

        <title>导航菜单</title>

        <%@ include file="/WEB-INF/jsp/public/commons.jspf"%>

        <link type="text/css" rel="stylesheet" href="style/blue/menu.css" />

    </head>

    <body style="margin: 0">

        <div id="Menu">

            <ul id="MenuUl">

                <%--显示一级菜单 --%>

                <s:iterator value="#application.topPrivilegeList">

                    <li class="level1">

                        <div onClick="menuClick(this);" class="level1Style">

                            <img src="style/images/MenuIcon/FUNC20082.gif" class="Icon" />

                            ${name}

                        </div>

                        <ul style="display: none;" class="MenuLevel2">

                            <%-- 显示二级菜单 --%>

                            <s:iterator value="children">

                            <li class="level2">

                                <div class="level2Style">

                                    <img src="style/images/MenuIcon/menu_arrow_single.gif" />

                                    <a target="right" href="System_Role/list.html"> 岗位管理</a>

                                </div>

                            </li>

                            </s:iterator>

                        </ul>

                    </li>

                </s:iterator>

            </ul>

        </div>

    </body>

</html>

InitListener.java

public class InitListener implements ServletContextListener {

    //获取容器与相关的Service对象

    public void contextInitialized(ServletContextEvent sce) {

        ApplicationContext ac = WebApplicationContextUtils.getWebApplicationContext(sce.getServletContext()); 

        PrivilegeService privilegeService = (PrivilegeService) ac.getBean("privilegeServiceImpl");

        //找到所有的*列表，放到最大的作用域中

        //准备数据：topPrivilegeList

        List<Privilege> topPrivilegeList = privilegeService.findTopList();

        sce.getServletContext().setAttribute("topPrivilegeList", topPrivilegeList);

        System.out.println("-----------> 已准备数据 <-----------");

    }

    public void contextDestroyed(ServletContextEvent arg0) {

    }

}

PrivilegeService.java

public interface PrivilegeService extends DaoSupport<Privilege> {

    //查询所有*的权限

    List<Privilege> findTopList();

}

PrivilegeServiceImpl.java

@Service

@Transactional

public class PrivilegeServiceImpl extends DaoSupportImpl<Privilege> implements PrivilegeService{

    public List<Privilege> findTopList() {

        return getSession().createQuery(//

                "FROM Privilegea p WHERE p.parent IS NULL")//

                .list();

    }

}

web.xml增加

　　 <!-- 用于做初始化工作的监听器，一定要配置到spring的 contextConfigLocation之后，因为要用到spring的容器对象-->

    <listener>

        <listener-class>cn.itcast.oa.util.InitListener</listener-class>

    </listener>

懒加载

登录时加载了用户，用户关联的对象都没有加载，但在第二个请求又访问了用户关联的对象，抛懒加载异常

Privilege.hbm.xml

User.hbm.xml

Role.hbm.xml

访问http://localhost:8080/ItcastOA/home_index.action

全部显示

图标问题

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权限模块使用权限显示左侧菜单2__只显示有权限的菜单项

leaf.jsp

<%@ page language="java" pageEncoding="UTF-8"%>

<html>

    <head>

        <title>导航菜单</title>

        <%@ include file="/WEB-INF/jsp/public/commons.jspf"%>

        <link type="text/css" rel="stylesheet" href="style/blue/menu.css" />

        <script type="text/javascript">

            function menuClick(menu){

                //$("#aa").hide();

                //$("#aa").show();

                $(menu).next().toggle();

            }

        </script>

    </head>

    <body style="margin: 0">

        <div id="Menu">

            <ul id="MenuUl">

                <%--显示一级菜单 --%>

                <s:iterator value="#application.topPrivilegeList">

                    <s:if test="#session.user.hasPrivilegeByName(name)"><!-- ognl表达式中调用方法 -->

                        <li class="level1">

                            <div onClick="menuClick(this);" class="level1Style">

                                <img src="style/images/MenuIcon/${id}.gif" class="Icon" />

                                ${name}

                            </div>

                            <ul style="" class="MenuLevel2" id="aa">

                                <%-- 显示二级菜单 --%>

                                <s:iterator value="children">

                                    <s:if test="#session.user.hasPrivilegeByName(name)">

                                        <li class="level2">

                                            <div class="level2Style">

                                                <img src="style/images/MenuIcon/menu_arrow_single.gif" />

                                                <a target="right" href="${pageContext.request.contextPath }${url}.action"> ${name}</a>

                                            </div>

                                        </li>

                                    </s:if>

                                </s:iterator>

                            </ul>

                        </li>

                    </s:if>

                </s:iterator>

            </ul>

        </div>

    </body>

</html>

User.java中增加

/**

     * 判定本用户是否有指定名称的权限

     * @param name

     * @return

     */

    public boolean hasPrivilegeByName(String name) {

        //超级管理员有所有的权限

        if(ifAdmin()) {

            return true;

        }

        //普通用户要判断是否含有这个权限

        for(Role role : roles) {

            for(Privilege priv : role.getPrivileges()) {

                if(priv.getName().equals(name)) {

                    return true;

                }

            }

        }

        return false;

    } 

    /**

     * 判断本用户是否是超级管理员

     */

    public boolean ifAdmin() {

        return "admin".equals(loginName);

    }

码农公寓

权限模块__使用权限__实现主页面的效果

权限模块_使用权限_显示左侧菜单1

权限模块__使用权限__显示左侧菜单2__只显示有权限的菜单项

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权限模块使用权限实现主页面的效果

权限模块使用权限显示左侧菜单2__只显示有权限的菜单项