java web实现用户权限管理

2019-11-26 14:49:36

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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。

实现效果：

数据库设计，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

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> <!-- 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;  } }