划分权限的思路大概如下： 然后在注册的时候要考虑注册的是管理员账号还是普通会员的账号，然后我这里呢是：如果要注册管理员账号，需要填写一个邀请码，如果普通会员就可以不用填写，如果你们有更好的方法也可以。
首先，样式我在上一篇博客里已经调好了，感兴趣的阔以去康康 文章链接
先看jsp页面代码： 登录页面
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>登录界面</title> <link rel="stylesheet" href="${pageContext.request.contextPath }/static/css/bootstrap.min.css" > <script src="${pageContext.request.contextPath }/static/js/bootstrap.min.js" ></script> <style> .form-signin{ width: 300px; position: relative; top:100px; left: 50%; margin-left: -200px; } </style> </head> <body > <form class="form-signin" action="${pageContext.request.contextPath }/user.action?methodName=login" method="post"> <h1 class="h3 mb-3 font-weight-normal text-center">登录</h1> <br/> <input type="text" id="uname" name="name" class="form-control" placeholder="用户名" required autofocus> <br/> <input type="password" id="pwd" name="pwd" class="form-control" placeholder="密码" required> <input type="checkbox" value="remember-me"> Remember me <br/><br/> <button class="btn btn-lg btn-info btn-block" id="login" type="submit">登录</button> <p class="mt-5 mb-3 text-muted">© 2017-2020</p> </form> </body> </html>注册页面
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>注册界面</title> <link rel="stylesheet" href="${pageContext.request.contextPath }/static/css/bootstrap.min.css" > <script src="${pageContext.request.contextPath }/static/js/bootstrap.min.js" ></script> <style> .form-signin{ width: 300px; position: relative; top:100px; left: 50%; margin-left: -200px; } </style> </head> <body > <form class="form-signin" action="${pageContext.request.contextPath }/user.action?methodName=add" method="post"> <h1 class="h3 mb-3 font-weight-normal text-center">注册</h1> <br/> <input type="text" id="name" name="name" class="form-control" placeholder="用户名" required autofocus> <br/> <input type="password" id="pwd" name="pwd" class="form-control" placeholder="密码" required> <br/> <input type="text" id="yzm" name="yzm" class="form-control" placeholder="如果要注冊管理員账号，请填写邀请码" required> <input type="checkbox" value="remember-me"> Remember me <br/><br/> <button class="btn btn-lg btn-info btn-block" type="submit">注册</button> <p class="mt-5 mb-3 text-muted">© 2017-2020</p> </form> </body> </html>这里定义跳转页面，比较方便，不会乱
<config> <action path="/user" type="com.wangjuanxia.web.UserAction"> <forward name="index" path="/index.jsp" redirect="false" /> <forward name="login" path="/login.jsp" redirect="false" /> <forward name="register" path="/register.jsp" redirect="false" /> </action> </config>处理业务逻辑，登录和增加用户（注册）方法
package com.wangjuanxia.web; import java.sql.SQLException; import java.text.ParseException; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.wangjuanxia.dao.UserDao; import com.wangjuanxia.entity.user; import com.wangjuanxia.framemark.ActionSupport; import com.wangjuanxia.framemark.ModelDriver; import com.wangjuanxia.util.StringUtils; public class UserAction extends ActionSupport implements ModelDriver<user>{ private user u=new user(); private UserDao ud=new UserDao(); @Override public user getModel() { // TODO Auto-generated method stub return u; } public String login(HttpServletRequest req,HttpServletResponse resp) { try { user user=null; if(!"null".equals(u.getName())&&!"null".equals(u.getPwd())) { try { user = this.ud.login(u, null).get(0); } catch (IndexOutOfBoundsException e) { return "login"; } if(user!=null) { req.getSession().setAttribute("user", user); return "index"; } } } catch (InstantiationException e) { e.printStackTrace(); return "login"; } catch (IllegalAccessException e) { e.printStackTrace(); return "login"; } catch (SQLException e) { e.printStackTrace(); return "login"; } catch (ParseException e) { e.printStackTrace(); return "login"; } return "login"; } public String add(HttpServletRequest req,HttpServletResponse resp) { try { String yzm=req.getParameter("yzm"); // u.setId(5); u.setType(2); if("solar".equals(yzm)) { u.setType(1); } int add = this.ud.add(u); if(add!=0) { return "login"; } } catch (NoSuchFieldException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } return "register"; } }增加用户和登录的方法，sql语句 id设置了自增长，所以sql语句里放null就行。
package com.wangjuanxia.dao; import java.sql.SQLException; import java.text.ParseException; import java.util.List; import com.wangjuanxia.entity.user; import com.wangjuanxia.util.BaseDao; import com.wangjuanxia.util.PageBean; import com.wangjuanxia.util.StringUtils; public class UserDao extends BaseDao<user> { public List<user> login(user u,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException, ParseException{ String sql="select * from t_easyui_user where true"; String name=u.getName(); String pwd=u.getPwd(); if(StringUtils.isNotBlank(name)&&StringUtils.isNotBlank(pwd)) { sql+=" and name='"+name+"' and pwd='"+pwd+"'"; } System.out.println(sql); return super.executeQuery(sql, user.class, pageBean); } public int add(user u) throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException, SQLException { String sql="insert into t_easyui_user values(null,?,?,?)"; return super.executeUpdate(sql, u, new String[] {"name","pwd","type"}); } }使用js文件配合easyui组件显示树形菜单权限
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>主界面</title> <!-- 写全局样式 --> <link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath }/static/js/jquery-easyui-1.5.1/themes/default/easyui.css"> <!-- 定义图标的样式 --> <link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath }/static/js/jquery-easyui-1.5.1/themes/icon.css"> <!--组件库源文件的js文件 --> <script type="text/javascript" src="${pageContext.request.contextPath }/static/js/jquery-easyui-1.5.1/jquery.min.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath }/static/js/jquery-easyui-1.5.1/jquery.easyui.min.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath }/static/js/index.js"></script> </head> <input type="hidden" id="ctx" value="${pageContext.request.contextPath }"/> <body class="easyui-layout"> <div data-options="region:'north',border:false" style="height:60px;background:#B3DFDA;padding:10px">这里可以放logo</div> <div data-options="region:'west',split:true,title:'目录'" style="width:150px;padding:10px;"> <ul id="tt"></ul> </div> <div data-options="region:'east',split:true,collapsed:true,title:'右边'" style="width:100px;padding:10px;">右边</div> <div data-options="region:'south',border:false" style="height:50px;background:#A9FACD;padding:10px;">这里放版权信息</div> <div data-options="region:'center',title:'内容'"> <div id="tab" class="easyui-tabs" style="width:100%;height:100%;"> <div title="首页" style="padding:20px;display:none;"> 一般首页放本站的各种数据指标，各个模块的使用情况，数据量，报表。 ${user.name },${user.pwd } </div> <div id="rcmenu" class="easyui-menu"> <div id="closecur"> 关闭当前 </div> <div id="closeall"> 关闭全部 </div> <div id="closeother"> 关闭其他 </div> <div class="menu-sep"></div> </div> </div> </div> </body> </html>主要用到的组件是tree 具体的使用我之前也写过博客，可以参考 文章链接
$(function(){ var ctx=$("#ctx").val(); var ctx=ctx+'/'; $('#tt').tree({ url:ctx + 'permission.action?methodName=menuTree', onClick: function(node){//当用户点击时执行 //目前问题：相同的tab页反复打开 //判断是否存在相同的选项卡，如果存在就切换到对应的选项卡，如果不存在就打开一个 if($('#tab').tabs('exists',node.text)){ //存在，切换选项卡 $('#tab').tabs('select',node.text); }else{ //不存在，新增选项卡 //存在问题，非叶子节点（当url为空）按开发角度来说是不能打开页面的 var url=node.attributes.self.url; if(url){ var content='<iframe scrolling="no" frameborder="0" src="'+ctx+url+'" width="99%" height="99%"></iframe>'; $('#tab').tabs('add',{ title:node.text, content: content, closable:true, tools:[{ iconCls:'icon-mini-refresh', handler:function(){ alert('refresh'); } }] }); } } } }); $(".tabs-header").bind('contextmenu',function(e){ e.preventDefault(); $('#rcmenu').menu('show', { left: e.pageX, top: e.pageY }); }); //关闭当前标签页 $("#closecur").bind("click",function(){ var tab = $('#tab').tabs('getSelected'); var index = $('#tab').tabs('getTabIndex',tab); $('#tab').tabs('close',index); }); //关闭所有标签页 $("#closeall").bind("click",function(){ var tablist = $('#tab').tabs('tabs'); //下标小于0，不删除第一个，小于等于0就全部删除 for(var i=tablist.length-1;i>0;i--){ $('#tab').tabs('close',i); } }); //关闭非当前标签页 $("#closeother").bind("click",function(){ var tablist = $('#tab').tabs('tabs'); var tab = $('#tab').tabs('getSelected'); var index = $('#tab').tabs('getTabIndex',tab); for(var i=tablist.length-1;i>index;i--){ $('#tab').tabs('close',i); } var num = index-1; //下标小于0，不删除第一个，小于等于0就全部删除 for(var i=num;i>0;i--){ $('#tab').tabs('close',i); } }); })根据我上面的思路，登录进来的时候将用户存到session，然后在这个类里取到用户的type，然后根据这个type查找到中间表对应的pid，再通过topNodePermission方法得到pid对应的权限们，然后通过writeJson方法打印出来。
package com.wangjuanxia.web; public class PermissionAction extends ActionSupport implements ModelDriver<Permission> { private Permission permission=new Permission(); private PermissionDao pd=new PermissionDao(); private RolePermissionDao rd=new RolePermissionDao(); @Override public Permission getModel() { // TODO Auto-generated method stub return permission; } public String menuTree(HttpServletRequest req,HttpServletResponse resp) { try { user u = (user) req.getSession().getAttribute("user"); RolePermission r=new RolePermission(); r.setRid(u.getType()); List<RolePermission> role = this.rd.list(r, null); StringBuilder pids=new StringBuilder(); for (RolePermission rp : role) { pids.append(",").append(rp.getPid()); } List<TreeVo<Permission>> tp = this.pd.topNodePermission(pids.substring(1), null); ResponseUtil.writeJson(resp, tp); //ResponseUtil.writeJson(resp, this.pd.topNode(null, null)); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } }管理员登录后： 普通用户登录后：
