java web简单权限管理设计

朴灿烈づ我的快乐病毒、 2022-08-07 06:48 115阅读 0赞

**源码免费下载地址：关注微信公众号“****虾米聊吧****”，回复关键字“权限****”**

**推荐最新技术springboot版权限管理**（**[java后台通用权限管理系统(springboot)][java_springboot]**），**采用最新技术架构，功能强大！**

**注：由于该项目比较老，所以没有采用maven管理，建议下载springboot权限管理系统，对学习和使用会更有帮助。**

**springboot权限管理系统介绍地址：**[https://blog.csdn.net/zwx19921215/article/details/97806078][java_springboot]

**springboot权限管理系统初级版下载地址：**[http://zyshare.cn/resource/detail/3][http_zyshare.cn_resource_detail_3]

**springboot权限管理系统高级版下载地址：**[http://zyshare.cn/resource/detail/7][http_zyshare.cn_resource_detail_7]

**springboot个人博客系统：**[https://blog.csdn.net/zwx19921215/article/details/102665020][https_blog.csdn.net_zwx19921215_article_details_102665020]

**后台管理系统模板html打包下载:** [http://zyshare.cn/resource/detail/14][http_zyshare.cn_resource_detail_14]

最近在做一个网站类型项目，主要负责后台，ui框架选型为jquery easy ui，项目架构为spring mvc + spring jdbc，简单易用好上手！搭建好框架后开始了第一个任务，设计并实现一套简单的权限管理功能。

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**

效果图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p3eDE5OTIxMjE1_size_16_color_FFFFFF_t_70][]

**![Center][]**

![Center 1][]

## 项目结构 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p3eDE5OTIxMjE1_size_16_color_FFFFFF_t_70 1][]

# #

## 后台实现 ##

展示层采用ztree树

role.jsp

<%@ 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>
    
    <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>
    	
    	<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>
    	
    	
    	<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>
    		
    		<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>
    	
    	
    	
    	
    	<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。**

**项目源码下载地址：**[http://www.zyshare.cn/resource/detail/1][http_www.zyshare.cn_resource_detail_1]

**注：由于本项目年代久远，所以技术比较老旧，新人学习建议此项目 java后台通用权限管理系统(springboot)**

**推荐项目：java后台通用权限管理系统(springboot)**

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[java_springboot]: https://blog.csdn.net/zwx19921215/article/details/97806078
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[http_zyshare.cn_resource_detail_7]: http://zyshare.cn/resource/detail/7
[https_blog.csdn.net_zwx19921215_article_details_102665020]: https://blog.csdn.net/zwx19921215/article/details/102665020
[http_zyshare.cn_resource_detail_14]: http://zyshare.cn/resource/detail/14
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p3eDE5OTIxMjE1_size_16_color_FFFFFF_t_70]: /images/20220805/d318231a0b9945dd90988892f3a1143a.png
[Center]: /images/20220805/51a4eb7e0cdf44f8bc9bbd8087355857.png
[Center 1]: /images/20220805/602524983a56472bbf35b022e12f4df6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p3eDE5OTIxMjE1_size_16_color_FFFFFF_t_70 1]: /images/20220805/da40cce6ac4345bf860293eeaf69b9bc.png
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