java web简单权限管理设计
一套最基本的权限管理包括用户、角色、资源。
数据库设计
我的设计如下：
用户：user
角色：role
用户-角色：user_role
资源：resource（包括上级菜单、子菜单、按钮等资源）
角色-资源：role_resource
标准的权限管理系统设计为以上5张表。
注：用户、用户-角色我就不做说明了，这两个是很简单的两块，用户的crud，以及为用户分配角色（多对多的关系）稍微琢磨一下就清楚了，下面都是针对为角色分配权限的实现
后台实现
展示层采用ztree树
<%@ page contentType="text/html;charset=UTF-8"%> <%@ include file="/views/back/include/taglib.jsp"%> <!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 name="decorator" content="back" /> <script type="text/javaScript"> //打开菜单窗口 function openMenuDialog(){ var selected = $("#list").datagrid('getSelected'); if (selected != null) { $("#id").val(selected.id); queryMenus(selected.id); $("#menuWindow").window("open"); } else { $.messager.alert('提示', "未选择数据！"); } } //角色-菜单信息入库 function ajaxSubmit(rid,idstr){ $.post("${ctx}/roleMenu/save.jhtml",{"roleId":rid,"ids":idstr},function(obj){ $.messager.alert('提示',obj.msg); $("#menuWindow").window('close'); },'json'); } </script> <!-- ztree --> <script type="text/javascript"> var tree = ""; var setting = { check : { chkboxType:{"Y":"ps","N":"s"},//勾选checkbox对于父子节点的关联关系,取消勾选时不关联父 chkStyle:"checkbox", enable : true //是否复选框 }, //数据 data : { simpleData : { enable : true } } }; //查询菜单信息 function queryMenus(roleId){ $.post('${ctx}/role/treedata.jhtml', {'roleId':roleId}, function(zNodes) { for (var i = 0; i < zNodes.length; i++) { if (zNodes[i].isParent) { } else { //zNodes[i].icon = "${ctxStatic}/images/532.ico";//设置图标 } } tree = $.fn.zTree.init($("#tree"), setting, zNodes); tree.expandAll(true);//全部展开 //var nodes = treeObj.getNodes(); }, 'json'); } //获取选中节点 function onCheck(){ var rid = $("#id").val(); var treeObj=$.fn.zTree.getZTreeObj("tree"); var nodes=treeObj.getCheckedNodes(true); var ids = new Array(); for(var i=0;i<nodes.length;i++){ //获取选中节点的值 ids.push(nodes[i].id); // v+=nodes[i].id + ","; //alert(nodes[i].id); } ajaxSubmit(rid,ids); } </script> </head> <body> <!-- 数据表格 --> <table id="list" url='${ctx}/role/list/page.jhtml' method='post' class="easyui-datagrid" style="width:100%;" fitcolumns="true" toolbar='#tb' pagination='true' rownumbers='true' singleSelect='true'> <thead> <tr> <th field='name' sortable='true' width='100'>角色名称</th> <th field='description' width='200' align='right'>描述</th> <th field='createTimeFormat' width='150' align='center'>创建时间</th> </tr> </thead> </table> <!-- 编辑栏 --> <div id="tb" style="padding:5px 5px;"> <div> <p2p:permission module="role" code="add"><a href="#" class="easyui-linkbutton" iconCls="icon-add" onclick="openCreateDialog();">新增</a></p2p:permission> <p2p:permission module="role" code="edit"><a href="#" class="easyui-linkbutton" iconCls="icon-edit" onclick="openUpdateDialog();">编辑</a></p2p:permission> <p2p:permission module="role" code="delete"><a href="#" class="easyui-linkbutton" iconCls="icon-remove" onclick="del();">删除</a></p2p:permission> <p2p:permission module="role" code="authority"><a href="#" class="easyui-linkbutton" iconCls="icon-edit" onclick="openMenuDialog();">设置权限</a></p2p:permission> </div> <!-- 搜索项 --> <div style="margin-top:5px;padding-left:5px"> 用户名： <input id="query_name" class="easyui-textbox" type="text" style="width:110px" /> 创建日期: <input id="query_startDate" class="easyui-datebox" style="width:110px"> 至: <input id="query_endDate" class="easyui-datebox" style="width:110px"> <a onclick="reload();" href="#" class="easyui-linkbutton" iconCls="icon-search">查询</a> </div> </div> <!-- 权限窗口 --> <div id="menuWindow" class="easyui-window" title="配置权限" data-options="modal:true,iconCls:'icon-save',footer:'#menuWindowfooter'" style="width:350px;height:420px;padding:10px"> <div id="tree" class="ztree" style="padding: 10px 20px;"></div> </div> <div id="menuWindowfooter" style="padding:5px;text-align:right;"> <a href="#" onclick="onCheck();" class="easyui-linkbutton" data-options="iconCls:'icon-save'">提交</a> </div> </body> </html>
action层
RoleAction.java
@RequestMapping(value = "/treedata.jhtml") @ResponseBody public String treedata(HttpServletRequest request, Model model) { DynamicParams params = new DynamicParams(request); List<Map<String, Object>> mapList = Lists.newArrayList(); params.put("allMenu", "allMenu"); List<Menu> list = authManager.findMenuList(params); List<RoleMenu> roleMenus = authManager.findRoleMenuList(params); for (int i = 0; i < list.size(); i++) { Menu e = list.get(i); Map<String, Object> map = Maps.newHashMap(); map.put("id", e.getId()); map.put("pId", e.getParentId() != null ? e.getParentId() : 0); map.put("name", e.getName()); for (RoleMenu roleMenu : roleMenus) { if (roleMenu.getMenuId() == e.getId()) { map.put("checked", true); } } mapList.add(map); } return toJson(mapList); }
service层
AuthManager.java
// 菜单管理 public List<Menu> findMenuList(DynamicParams params) { List<Menu> menus = new ArrayList<Menu>(); if ("allMenu".equals(params.getString("allMenu"))) { menus = menuDao.findList(params); } else { // 通过用户查询角色 List<UserRole> userRoles = userRoleDao.findList(params); // 通过角色查询菜单 List<RoleMenu> roleMenus = new ArrayList<RoleMenu>(); if (userRoles != null && userRoles.size() > 0) { for (UserRole userRole : userRoles) { params = new DynamicParams(); if (userRole != null) { if (userRole.getRoleId().equals(params.getString("rid"))) { break; } params.put("roleId", userRole.getRoleId().toString()); List<RoleMenu> rms = roleMenuDao.findList(params); for (RoleMenu roleMenu : rms) { roleMenus.add(roleMenu); } } } } // 查询菜单信息 for (RoleMenu roleMenu : roleMenus) { if (roleMenu != null) { Menu menu = menuDao.find(roleMenu.getMenuId()); if (menu != null) { menus.add(menu); } } } menus = removeDuplicate(menus); Collections.sort(menus); } return menus; }
/** * 去除菜单中重复项 * * @param list * @return */ private List<Menu> removeDuplicate(List<Menu> list) { List<Menu> result = new ArrayList<Menu>(); Set<Long> menuIds = new HashSet<Long>(); for (int i = 0; i < list.size(); i++) { Menu m = list.get(i); if (m != null && menuIds.add(m.getId())) { result.add(m); } } return result; }
public List<RoleMenu> findRoleMenuList(DynamicParams params) { List<RoleMenu> roleMenus = roleMenuDao.findList(params); return roleMenus; }
Dao层
menuDao
@Override protected void createQuery(DynamicParams params, StringBuffer sql, List<Object> args) { sql.append("select s.* from sys_menu s where 1=1 "); String parentId = params.getString("parentId"); if (StringUtils.isNotBlank(parentId)) { sql.append(" and parent_id = ? "); args.add(parentId); } String sort = params.getString("sort"); String order = params.getString("order"); if (StringUtils.isNotBlank(sort)) { sql.append(" order by ").append(hump2underline(sort)); if (StringUtils.isNotBlank(order)) { sql.append(" " + order); } else { sql.append(" desc "); } } else { sql.append("order by sort asc,id desc "); } }
userRoleDao
@Override protected void createQuery(DynamicParams params, StringBuffer sql, List<Object> args) { sql.append("select s.* from sys_user_role s where 1=1 "); Long adminId = params.getLong("adminId"); if (adminId != null) { sql.append(" and s.user_id = ?"); args.add(adminId); } }
roleMenuDao
@Override protected void createQuery(DynamicParams params, StringBuffer sql, List<Object> args) { sql.append("select s.* from ").append("sys_role_menu").append(" s where 1=1 "); Long adminId = params.getLong("roleId"); if (adminId != null) { sql.append(" and s.role_id = ?"); args.add(adminId); } }
在WEB-INF目录下建立文件夹tlds 建立自定义标签文件shiros.tld，我们通过自定义标签实现页面按钮的控制。
<span style="color:#333333;"><?xml version="1.0" encoding="UTF-8" ?> <taglib xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd" version="2.0"> <description>p2p permission taglib</description> <display-name>permission taglib</display-name> <tlib-version>1.0</tlib-version> <short-name>p2p_back</short-name> <uri>http://vanfon.p2p.cn/</uri> <tag> <description>权限校验标签，有权限就显示标签体的内容，否则不显示</description> <name>permission</name> <tag-class>com.vanfon.p2p.back.tag.PermissionTag</tag-class> <body-content>JSP</body-content> <attribute> <description></description> <name>module</name> <required>true</required> <rtexprvalue>false</rtexprvalue> </attribute> <attribute> <description></description> <name>code</name> <required>true</required> <rtexprvalue>false</rtexprvalue> </attribute> </tag> </taglib></span>
自定义标签类
package com.vanfon.p2p.back.tag; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.jsp.JspException; import javax.servlet.jsp.tagext.TagSupport; import com.vanfon.p2p.entity.system.Admin; import com.vanfon.p2p.entity.system.Menu; import com.vanfon.p2p.manager.system.AuthManager; import com.vanfon.p2p.utils.DynamicParams; import com.vanfon.p2p.utils.SpringContextHolder; /** * 权限控制标签 * * @author zhangwx * @date 2015-2-5 */ public class PermissionTag extends TagSupport { /** * */ private static final long serialVersionUID = 4592227792811389132L; private String module;// 属性名必须与JSP自定义标签的属性名一样 private String code; public String getModule() { return module; } public void setModule(String module) { this.module = module; } public String getCode() { return code; } public void setCode(String code) { this.code = code; } @Override public int doStartTag() throws JspException { boolean result = false; HttpServletRequest request = (HttpServletRequest) this.pageContext.getRequest();// 通过成员变量获取HttpServletRequest对象 Admin admin = (Admin) request.getSession().getAttribute("admin");// 获取登录到系统的用户 if (admin != null) { if ("1".equals(String.valueOf(admin.getIfsuper()))) {// 超级管理员 result = true; } else { DynamicParams params = new DynamicParams(); params.put("id", String.valueOf(admin.getId())); params.put("module", this.module); params.put("code", this.code); AuthManager authManager = SpringContextHolder.getBean(AuthManager.class); List<Menu> userRoleAuths = authManager.findUserRoleAuthList(params); if (userRoleAuths != null && userRoleAuths.size() > 0) { result = true; } } } return result ? EVAL_BODY_INCLUDE : SKIP_BODY; } }
以上就是该权限管理中权限树（为角色分配权限）的大体实现。
