!13 支持多级菜单

Merge pull request !13 from zwzw1219/m-m

README.md

@@ -2,3 +2,4 @@
 ## 2018.03.05 spring boot 由1.5.10 升级到2.0.0
 ## 2018.03.15上传文件的大小配置修改spring.http.multipart改为spring.servlet.multipart
 ## 2018.05.24作废DruidConfig类，将druid改为配置的方式，前缀为spring.datasource.druid
+## 2018.06.09 修改main.js菜单渲染和对应接口，使之支持多级菜单

src/main/java/com/boot/security/server/controller/PermissionController.java

@@ -55,19 +55,44 @@ public class PermissionController {
 		final List<Permission> permissions = list.stream().filter(l -> l.getType().equals(1))
 				.collect(Collectors.toList());
 
-		setChild(permissions);
+//		setChild(permissions);
+//
+//		return permissions.stream().filter(p -> p.getParentId().equals(0L)).collect(Collectors.toList());
+		// 2018.06.09 支持多级菜单
+        List<Permission> firstLevel = permissions.stream().filter(p -> p.getParentId().equals(0L)).collect(Collectors.toList());
+        firstLevel.parallelStream().forEach(p -> {
+            setChild(p, permissions);
+        });
 
-		return permissions.stream().filter(p -> p.getParentId().equals(0L)).collect(Collectors.toList());
+        return firstLevel;
 	}
 
-	private void setChild(List<Permission> permissions) {
-		permissions.parallelStream().forEach(per -> {
-			List<Permission> child = permissions.stream().filter(p -> p.getParentId().equals(per.getId()))
-					.collect(Collectors.toList());
-			per.setChild(child);
-		});
+	/**
+	 * 设置子元素
+	 * 2018.06.09
+	 *
+	 * @param p
+	 * @param permissions
+	 */
+	private void setChild(Permission p, List<Permission> permissions) {
+		List<Permission> child = permissions.parallelStream().filter(a -> a.getParentId().equals(p.getId())).collect(Collectors.toList());
+		p.setChild(child);
+		if (!CollectionUtils.isEmpty(child)) {
+			child.parallelStream().forEach(c -> {
+				//递归设置子元素，多级菜单支持
+				setChild(c, permissions);
+			});
+		}
 	}
 
+//	private void setChild(List<Permission> permissions) {
+//		permissions.parallelStream().forEach(per -> {
+//			List<Permission> child = permissions.stream().filter(p -> p.getParentId().equals(per.getId()))
+//					.collect(Collectors.toList());
+//			per.setChild(child);
+//		});
+//	}
+
 	/**
 	 * 菜单列表
 	 * 

src/main/resources/static/css/global.css

@@ -253,6 +253,8 @@ body .site-demo-nav .layui-nav-item{line-height: 40px}
 	padding-left: 30px;
 }
 
+.layui-nav-child dd{position:relative;margin-left: 10px}
+
 .admin{
 	border: 0;
 	margin: 0;

src/main/resources/static/index.html

@@ -11,7 +11,7 @@
 	    <meta name="format-detection" content="telephone=no">
 		<title>后台管理系统</title>
 		<link rel="stylesheet" href="layui/css/layui.css" media="all" />
-		<link rel="stylesheet" href="layui/css/global.css" media="all" />
+		<link rel="stylesheet" href="css/global.css" media="all" />
 		<link rel="stylesheet" href="css/font-awesome/css/font-awesome.css" media="all" />
 		
 	</head>

src/main/resources/static/js/main.js

@@ -30,37 +30,44 @@ function initMenu(){
 	            	 li.addClass("layui-nav-itemed");
 	             }
 	             li.append(a);
+                 menu.append(li);
 	             
-	             //二级菜单
-	             var child2 = item.child;
-	             if(child2 != null && child2.length > 0){
-	            	 $.each(child2, function(j,item2){
-	            		 var ca = $("<a href='javascript:;'></a>");
-                         ca.attr("data-url", item2.href);
-                         ca.attr("lay-id", item2.id);
+	             //多级菜单
+	             setChild(li, item.child)
 
-                         var css2 = item2.css;
-                         if(css2!=null && css2!=""){
-                        	 ca.append("<i aria-hidden='true' class='fa " + css2 +"'></i>");
-                         }
-                         
-                         ca.append("<cite>"+item2.name+"</cite>");
-                         
-                         var dd = $("<dd></dd>");
-                         dd.append(ca);
-                         
-                         var dl = $("<dl class='layui-nav-child'></dl>");
-                         dl.append(dd);
-                         
-                         li.append(dl);
-	            	 });
-	            }
-	            menu.append(li);
 	        });
 	     }
 	 });
 }
 
+function setChild(parentElement, child){
+    if(child != null && child.length > 0){
+        $.each(child, function(j,item2){
+            var ca = $("<a href='javascript:;'></a>");
+            ca.attr("data-url", item2.href);
+            ca.attr("lay-id", item2.id);
+
+            var css2 = item2.css;
+            if(css2!=null && css2!=""){
+                ca.append("<i aria-hidden='true' class='fa " + css2 +"'></i>");
+            }
+
+            ca.append("<cite>"+item2.name+"</cite>");
+
+            var dd = $("<dd></dd>");
+            dd.append(ca);
+
+            var dl = $("<dl class='layui-nav-child'></dl>");
+            dl.append(dd);
+
+            parentElement.append(dl);
+
+            // 递归
+            setChild(dd, item2.child);
+        });
+    }
+}
+
 // 登陆用户头像昵称
 showLoginInfo();
 function showLoginInfo(){

src/main/resources/static/pages/dashboard.html

@@ -4,7 +4,7 @@
 <meta charset="UTF-8">
 <title></title>
 <link rel="stylesheet" href="../layui/css/layui.css" media="all" />
-<link rel="stylesheet" href="../layui/css/global.css" media="all" />
+<link rel="stylesheet" href="../css/global.css" media="all" />
 </head>
 
 <body>