diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/10.\345\257\271\350\261\241\345\257\274\350\256\272/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/10.\345\257\271\350\261\241\345\257\274\350\256\272/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..cfb09666ea9fa8559f4a533617e1506d34f9f46b
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/10.\345\257\271\350\261\241\345\257\274\350\256\272/config.json"
@@ -0,0 +1,75 @@
+{
+  "node_id": "java-30e9c233490b48cab3d429d4baa652d4",
+  "keywords": [],
+  "children": [
+    {
+      "抽象过程": {
+        "keywords": [],
+        "children": [],
+        "node_id": "java-a087266d273941c1b48ff7a6439c3763",
+        "title": "抽象过程"
+      }
+    },
+    {
+      "每个对象都有一个接口": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "每个对象都有一个接口"
+      }
+    },
+    {
+      "每个对象都提供服务": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "每个对象都提供服务"
+      }
+    },
+    {
+      "被隐藏的具体实现": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "复用具体实现": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "伴随多态的可互换对象": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "单根继承结构": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "容器": {
+        "keywords": [],
+        "children": [
+          {
+            "参数化类型（范型）": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    }
+  ],
+  "export": [],
+  "title": "对象导论"
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/11.\345\210\235\345\247\213\345\214\226\344\270\216\346\270\205\347\220\206/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/11.\345\210\235\345\247\213\345\214\226\344\270\216\346\270\205\347\220\206/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..af13c0240d5a68825116243a2a2908f7e6ebc0aa
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/11.\345\210\235\345\247\213\345\214\226\344\270\216\346\270\205\347\220\206/config.json"
@@ -0,0 +1,431 @@
+{
+  "node_id": "java-fd953c58b2024be0b11f829c3b7f36fd",
+  "keywords": [],
+  "children": [
+    {
+      "用构造器确保初始化": {
+        "keywords": [],
+        "children": [],
+        "node_id": "java-9917fd6871e845bf873eec19aa99a353",
+        "title": "用构造器确保初始化"
+      }
+    },
+    {
+      "缺省构造器": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "缺省构造器"
+      }
+    },
+    {
+      "成员初始化": {
+        "keywords": [],
+        "children": [
+          {
+            "指定初始化": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "成员初始化"
+      }
+    },
+    {
+      "构造器初始化": {
+        "keywords": [],
+        "children": [
+          {
+            "初始化顺序": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "静态数据的初始化": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "显式的静态初始化": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "数组初始化": {
+        "keywords": [],
+        "children": [
+          {
+            "可变参数列表": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "枚举类型": {
+        "keywords": [],
+        "children": [
+          {
+            "基本enum特性": {
+              "keywords": [],
+              "children": [
+                {
+                  "将静态导入用于enum": {
+                    "keywords": [],
+                    "children": [],
+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+                  }
+                }
+              ],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "向enum中添加新方法": {
+              "keywords": [],
+              "children": [
+                {
+                  "覆盖enum的方法": {
+                    "keywords": [],
+                    "children": [],
+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+                  }
+                }
+              ],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "switch语句中的enum": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "values（）的神秘之处": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "实现但不继承随机选取": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "为组织而使用接口": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "使用EnumSet替代标志": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "使用EnumMap": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "常数相关的方法": {
+              "keywords": [],
+              "children": [
+                {
+                  "使用enum的职责链": {
+                    "keywords": [],
+                    "children": [],
+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+                  }
+                },
+                {
+                  "使用enum的状态机": {
+                    "keywords": [],
+                    "children": [],
+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+                  }
+                }
+              ],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "多路分发": {
+              "keywords": [],
+              "children": [
+                {
+                  "使用enum分发": {
+                    "keywords": [],
+                    "children": [],
+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+                  }
+                },
+                {
+                  "使用EnumMap分发": {
+                    "keywords": [],
+                    "children": [],
+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+                  }
+                }
+              ],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "使用枚举类型设置常量": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "使用枚举类型的优势": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "类初始化块": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Java访问权限修饰词": {
+        "keywords": [],
+        "children": [
+          {
+            "包访问权限": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "public:接口访问权限": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "private: 你无法访问": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "protected：继承访问权限": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "类的访问权限": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "组合语法": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "继承语法": {
+        "keywords": [],
+        "children": [
+          {
+            "初始化基类": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "代理": {
+        "keywords": [],
+        "children": [
+          {
+            "创建代理对象": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "代理类的特性": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "在组合与继承之间选择": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "protected关键字": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "添加一组元素": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "容器的打印": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "List": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "迭代器": {
+        "keywords": [],
+        "children": [
+          {
+            "ListIterator": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "LinkedList": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Stack": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Set": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Map": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Queue": {
+        "keywords": [],
+        "children": [
+          {
+            "PriorityQueue": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Collection和Iterator": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Foreach与迭代器": {
+        "keywords": [],
+        "children": [
+          {
+            "适配器方法惯用法": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    }
+  ],
+  "export": [],
+  "title": "初始化与清理"
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/12.\351\200\232\350\277\207\345\274\202\345\270\270\345\244\204\347\220\206\351\224\231\350\257\257/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/12.\351\200\232\350\277\207\345\274\202\345\270\270\345\244\204\347\220\206\351\224\231\350\257\257/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..d0df1f7462e50aa17f688b7f98d54d34e35c6ddb
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/12.\351\200\232\350\277\207\345\274\202\345\270\270\345\244\204\347\220\206\351\224\231\350\257\257/config.json"
@@ -0,0 +1,220 @@
+{
+  "node_id": "java-d11b7f01004c443ea6226d174ba1e3fa",
+  "keywords": [],
+  "children": [
+    {
+      "概念": {
+        "keywords": [],
+        "children": [],
+        "node_id": "java-74dba10624904700bca41dd2cfab0d17",
+        "title": "概念"
+      }
+    },
+    {
+      "捕获异常": {
+        "keywords": [],
+        "children": [
+          {
+            "try块": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+              "title": "try块"
+            }
+          },
+          {
+            "异常处理程序": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "f?inally子句": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "try-with-Resources语句": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "分析堆栈轨迹元素": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "捕获异常"
+      }
+    },
+    {
+      "创建自定义异常": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "异常说明": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "捕获所有异常": {
+        "keywords": [],
+        "children": [
+          {
+            "栈轨迹": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "重新抛出异常": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "异常链": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Java标准异常": {
+        "keywords": [],
+        "children": [
+          {
+            "特例: RuntimeException（运行时异常）": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "使用finally进行清理": {
+        "keywords": [],
+        "children": [
+          {
+            "finally用来做什么": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "在return中使用finally": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "缺憾：异常丢失": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "构造器": {
+        "keywords": [],
+        "children": [
+          {
+            "使用构造器执行初始化": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "构造器重载": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "异常匹配": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "其他可选方式": {
+        "keywords": [],
+        "children": [
+          {
+            "历史": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "观点": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "把异常传递给控制台": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "把“受检查异常”转换为“不受检查的异常”": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "异常使用指南": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    }
+  ],
+  "export": [],
+  "title": "通过异常处理错误"
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/13.\345\271\266\345\217\221\347\274\226\347\250\213/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/13.\345\271\266\345\217\221\347\274\226\347\250\213/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..ed1e4fd273df85d6ba154c4280b35e1a58948102
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/13.\345\271\266\345\217\221\347\274\226\347\250\213/config.json"
@@ -0,0 +1,7 @@
+{
+  "node_id": "java-f372302ab33f4bfc875688641393d369",
+  "keywords": [],
+  "children": [],
+  "export": [],
+  "title": "并发编程"
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/14.\351\200\232\350\277\207\345\274\202\345\270\270\345\244\204\347\220\206\351\224\231\350\257\257/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/14.\351\200\232\350\277\207\345\274\202\345\270\270\345\244\204\347\220\206\351\224\231\350\257\257/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..d0df1f7462e50aa17f688b7f98d54d34e35c6ddb
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/14.\351\200\232\350\277\207\345\274\202\345\270\270\345\244\204\347\220\206\351\224\231\350\257\257/config.json"
@@ -0,0 +1,220 @@
+{
+  "node_id": "java-d11b7f01004c443ea6226d174ba1e3fa",
+  "keywords": [],
+  "children": [
+    {
+      "概念": {
+        "keywords": [],
+        "children": [],
+        "node_id": "java-74dba10624904700bca41dd2cfab0d17",
+        "title": "概念"
+      }
+    },
+    {
+      "捕获异常": {
+        "keywords": [],
+        "children": [
+          {
+            "try块": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+              "title": "try块"
+            }
+          },
+          {
+            "异常处理程序": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "f?inally子句": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "try-with-Resources语句": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "分析堆栈轨迹元素": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "捕获异常"
+      }
+    },
+    {
+      "创建自定义异常": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "异常说明": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "捕获所有异常": {
+        "keywords": [],
+        "children": [
+          {
+            "栈轨迹": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "重新抛出异常": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "异常链": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Java标准异常": {
+        "keywords": [],
+        "children": [
+          {
+            "特例: RuntimeException（运行时异常）": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "使用finally进行清理": {
+        "keywords": [],
+        "children": [
+          {
+            "finally用来做什么": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "在return中使用finally": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "缺憾：异常丢失": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "构造器": {
+        "keywords": [],
+        "children": [
+          {
+            "使用构造器执行初始化": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "构造器重载": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "异常匹配": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "其他可选方式": {
+        "keywords": [],
+        "children": [
+          {
+            "历史": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "观点": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "把异常传递给控制台": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "把“受检查异常”转换为“不受检查的异常”": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "异常使用指南": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    }
+  ],
+  "export": [],
+  "title": "通过异常处理错误"
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/15.\345\271\266\345\217\221\347\274\226\347\250\213/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/15.\345\271\266\345\217\221\347\274\226\347\250\213/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..ed1e4fd273df85d6ba154c4280b35e1a58948102
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/15.\345\271\266\345\217\221\347\274\226\347\250\213/config.json"
@@ -0,0 +1,7 @@
+{
+  "node_id": "java-f372302ab33f4bfc875688641393d369",
+  "keywords": [],
+  "children": [],
+  "export": [],
+  "title": "并发编程"
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/7.switch/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/7.switch/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..900bfeb8be7d5174ad811dd00dc425a7dee7f0ca
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/7.switch/config.json"
@@ -0,0 +1,7 @@
+{
+  "node_id": "java-05144fa9daf94a64ad0667eab1d6cc9a",
+  "keywords": [],
+  "children": [],
+  "export": [],
+  "title": "switch"
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/8.\345\257\271\350\261\241\345\257\274\350\256\272/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/8.\345\257\271\350\261\241\345\257\274\350\256\272/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..cfb09666ea9fa8559f4a533617e1506d34f9f46b
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/8.\345\257\271\350\261\241\345\257\274\350\256\272/config.json"
@@ -0,0 +1,75 @@
+{
+  "node_id": "java-30e9c233490b48cab3d429d4baa652d4",
+  "keywords": [],
+  "children": [
+    {
+      "抽象过程": {
+        "keywords": [],
+        "children": [],
+        "node_id": "java-a087266d273941c1b48ff7a6439c3763",
+        "title": "抽象过程"
+      }
+    },
+    {
+      "每个对象都有一个接口": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "每个对象都有一个接口"
+      }
+    },
+    {
+      "每个对象都提供服务": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "每个对象都提供服务"
+      }
+    },
+    {
+      "被隐藏的具体实现": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "复用具体实现": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "伴随多态的可互换对象": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "单根继承结构": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "容器": {
+        "keywords": [],
+        "children": [
+          {
+            "参数化类型（范型）": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    }
+  ],
+  "export": [],
+  "title": "对象导论"
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/9.\345\210\235\345\247\213\345\214\226\344\270\216\346\270\205\347\220\206/config.json" "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/9.\345\210\235\345\247\213\345\214\226\344\270\216\346\270\205\347\220\206/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..af13c0240d5a68825116243a2a2908f7e6ebc0aa
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/11.\346\216\247\345\210\266\346\211\247\350\241\214\346\265\201\347\250\213/9.\345\210\235\345\247\213\345\214\226\344\270\216\346\270\205\347\220\206/config.json"
@@ -0,0 +1,431 @@
+{
+  "node_id": "java-fd953c58b2024be0b11f829c3b7f36fd",
+  "keywords": [],
+  "children": [
+    {
+      "用构造器确保初始化": {
+        "keywords": [],
+        "children": [],
+        "node_id": "java-9917fd6871e845bf873eec19aa99a353",
+        "title": "用构造器确保初始化"
+      }
+    },
+    {
+      "缺省构造器": {
+        "keywords": [],
+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "缺省构造器"
+      }
+    },
+    {
+      "成员初始化": {
+        "keywords": [],
+        "children": [
+          {
+            "指定初始化": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "title": "成员初始化"
+      }
+    },
+    {
+      "构造器初始化": {
+        "keywords": [],
+        "children": [
+          {
+            "初始化顺序": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "静态数据的初始化": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "显式的静态初始化": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "数组初始化": {
+        "keywords": [],
+        "children": [
+          {
+            "可变参数列表": {
+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          }
+        ],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "枚举类型": {
+        "keywords": [],
+        "children": [
+          {
+            "基本enum特性": {
+              "keywords": [],
+              "children": [
+                {
+                  "将静态导入用于enum": {
+                    "keywords": [],
+                    "children": [],
+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+                  }
+                }
+              ],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+            }
+          },
+          {
+            "向enum中添加新方法": {
+              "keywords": [],
+              "children": [
+                {
+                  "覆盖enum的方法": {
+                    "keywords": [],
+                    "children": [],
+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+                  }
+                }
+              ],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+                    "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+      }
+    },
+    {
+      "Java访问权限修饰词": {
+        "keywords": [],
+        "children": [
+          {
+            "包访问权限": {
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+              "children": [],
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+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "children": [],
+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "keywords": [],
+        "children": [
+          {
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+              "keywords": [],
+              "children": [],
+              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
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+  ],
+  "export": [],
+  "title": "初始化与清理"
+}
\ No newline at end of file
diff --git a/data/tree.json b/data/tree.json
index 29d31c3f270bd6d50d1e59dd5af54cddeddcc46e..35e8b4d695bd00f2497f6f2f0e615e4e8900c094 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -1066,13 +1066,6 @@
                       "children": []
                     }
                   },
-                  {
-                    "switch": {
-                      "node_id": "java-05144fa9daf94a64ad0667eab1d6cc9a",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
                   {
                     "对象导论": {
                       "node_id": "java-30e9c233490b48cab3d429d4baa652d4",