增加后台全局状态；增加默认头像

app/admin/view/index/index.html

@@ -43,8 +43,8 @@
                     </li>
                     <li class="layui-nav-item layuimini-setting">
                         <a href="javascript:;">
-                            <img src="{:session('admin.head_img')}" class="layui-nav-img" width="50" height="50">
-                            <cite class="adminName">{:session('admin.username')}</cite>
+                            <img src="{$session_admin.head_img}" class="layui-nav-img" width="50" height="50">
+                            <cite class="adminName">{$session_admin.username}</cite>
                             <span class="layui-nav-more"></span>
                         </a>
                         <dl class="layui-nav-child">

app/admin/view/system/admin/add.html

@@ -4,7 +4,7 @@
         <div class="layui-form-item">
             <label class="layui-form-label required">用户头像</label>
             <div class="layui-input-block layuimini-upload">
-                <input name="head_img" class="layui-input layui-col-xs6" lay-verify="required" lay-reqtext="请上传用户头像" placeholder="请上传用户头像" value="/static/admin/images/head.jpg">
+                <input name="head_img" class="layui-input layui-col-xs6" lay-verify="required" lay-reqtext="请上传用户头像" placeholder="请上传用户头像" value="/static/common/images/head.png">
                 <div class="layuimini-upload-btn">
                     <span><a class="layui-btn" data-upload="head_img" data-upload-number="one" data-upload-exts="png|jpg|ico|jpeg" data-upload-icon="image"><i class="fa fa-upload"></i> 上传</a></span>
                     <span><a class="layui-btn layui-btn-normal" id="select_head_img" data-upload-select="head_img" data-upload-number="one" data-upload-mimetype="image/*"><i class="fa fa-list"></i> 选择</a></span>

app/common/controller/AdminController.php

@@ -4,7 +4,7 @@
 
 namespace app\common\controller;
 
-
+use app\admin\model\SystemAdmin;
 use app\admin\service\ConfigService;
 use app\BaseController;
 use app\common\constants\AdminConstant;
@@ -101,6 +101,12 @@ class AdminController extends BaseController
      */
     protected $exportFileName = null;
 
+    /**
+     * 当前登陆的管理员
+     * @var SystemAdmin
+     */
+    protected $sessionAdmin;
+
     /**
      * 初始化方法
      */
@@ -374,6 +380,12 @@ class AdminController extends BaseController
                 $this->error('演示环境下不允许修改');
             }
         }
+
+        $model_admin = SystemAdmin::autoCache('read',$adminId)->find($adminId);
+
+        $this->sessionAdmin = $model_admin;
+
+        $this->assign('session_admin',$model_admin);
     }
 
     /**