diff --git a/docs/spring/csac685e64-930e-11ee-83ff-acde48001122.java b/docs/spring/csac685e64-930e-11ee-83ff-acde48001122.java
new file mode 100644
index 00000000..bd16750d
--- /dev/null
+++ b/docs/spring/csac685e64-930e-11ee-83ff-acde48001122.java
@@ -0,0 +1,19 @@
+package com.huifer.aop.advice;
+
+/**
+ * 描述:
+ *
+ * @author huifer
+ * @date 2019-03-02
+ */
+public class Person implements BaseAopPointCutInAdvice {
+    @Override
+    public void eat() {
+        System.out.println("吃饭了");
+    }
+
+    @Override
+    public void wc() {
+        System.out.println("上厕所了");
+    }
+}
diff --git a/docs/spring/csac96ad3c-930e-11ee-83ff-acde48001122.java b/docs/spring/csac96ad3c-930e-11ee-83ff-acde48001122.java
new file mode 100644
index 00000000..8a1769b9
--- /dev/null
+++ b/docs/spring/csac96ad3c-930e-11ee-83ff-acde48001122.java
@@ -0,0 +1,42 @@
+/**
+ * Copyright 2009-2015 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ibatis.binding;
+
+import org.apache.ibatis.exceptions.PersistenceException;
+
+/**
+ * @author Clinton Begin
+ */
+public class BindingException extends PersistenceException {
+
+    private static final long serialVersionUID = 4300802238789381562L;
+
+    public BindingException() {
+        super();
+    }
+
+    public BindingException(String message) {
+        super(message);
+    }
+
+    public BindingException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public BindingException(Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/docs/spring/csacc4b22c-930e-11ee-83ff-acde48001122.java b/docs/spring/csacc4b22c-930e-11ee-83ff-acde48001122.java
new file mode 100644
index 00000000..70f2b7a0
--- /dev/null
+++ b/docs/spring/csacc4b22c-930e-11ee-83ff-acde48001122.java
@@ -0,0 +1,46 @@
+/**
+ * Copyright 2009-2015 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ibatis.submitted.lazyload_common_property;
+
+public class Father {
+    private Integer id;
+    private String name;
+    private GrandFather grandFather;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public GrandFather getGrandFather() {
+        return grandFather;
+    }
+
+    public void setGrandFather(GrandFather grandFather) {
+        this.grandFather = grandFather;
+    }
+}
diff --git a/docs/spring/csacf2dd46-930e-11ee-83ff-acde48001122.java b/docs/spring/csacf2dd46-930e-11ee-83ff-acde48001122.java
new file mode 100644
index 00000000..6c638e0f
--- /dev/null
+++ b/docs/spring/csacf2dd46-930e-11ee-83ff-acde48001122.java
@@ -0,0 +1,162 @@
+/**
+ * Copyright 2009-2018 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ibatis.reflection.wrapper;
+
+import org.apache.ibatis.reflection.MetaObject;
+import org.apache.ibatis.reflection.SystemMetaObject;
+import org.apache.ibatis.reflection.factory.ObjectFactory;
+import org.apache.ibatis.reflection.property.PropertyTokenizer;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * java map 的包装对象, 本质操作为map的操作, get-> map.get() set->map.put()
+ * @author Clinton Begin
+ */
+public class MapWrapper extends BaseWrapper {
+
+    private final Map<String, Object> map;
+
+    public MapWrapper(MetaObject metaObject, Map<String, Object> map) {
+        super(metaObject);
+        this.map = map;
+    }
+
+    @Override
+    public Object get(PropertyTokenizer prop) {
+        // 是否有索引
+        if (prop.getIndex() != null) {
+            Object collection = resolveCollection(prop, map);
+            // 嗲用 BaseWrapper
+            return getCollectionValue(prop, collection);
+        } else {
+            // 获取
+            return map.get(prop.getName());
+        }
+    }
+
+    @Override
+    public void set(PropertyTokenizer prop, Object value) {
+        if (prop.getIndex() != null) {
+            Object collection = resolveCollection(prop, map);
+            setCollectionValue(prop, collection, value);
+        } else {
+            map.put(prop.getName(), value);
+        }
+    }
+
+    @Override
+    public String findProperty(String name, boolean useCamelCaseMapping) {
+        return name;
+    }
+
+    @Override
+    public String[] getGetterNames() {
+        return map.keySet().toArray(new String[map.keySet().size()]);
+    }
+
+    @Override
+    public String[] getSetterNames() {
+        return map.keySet().toArray(new String[map.keySet().size()]);
+    }
+
+    @Override
+    public Class<?> getSetterType(String name) {
+        PropertyTokenizer prop = new PropertyTokenizer(name);
+        if (prop.hasNext()) {
+            MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
+            if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
+                return Object.class;
+            } else {
+                return metaValue.getSetterType(prop.getChildren());
+            }
+        } else {
+            if (map.get(name) != null) {
+                return map.get(name).getClass();
+            } else {
+                return Object.class;
+            }
+        }
+    }
+
+    @Override
+    public Class<?> getGetterType(String name) {
+        PropertyTokenizer prop = new PropertyTokenizer(name);
+        if (prop.hasNext()) {
+            MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
+            if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
+                return Object.class;
+            } else {
+                return metaValue.getGetterType(prop.getChildren());
+            }
+        } else {
+            if (map.get(name) != null) {
+                return map.get(name).getClass();
+            } else {
+                return Object.class;
+            }
+        }
+    }
+
+    @Override
+    public boolean hasSetter(String name) {
+        return true;
+    }
+
+    @Override
+    public boolean hasGetter(String name) {
+        PropertyTokenizer prop = new PropertyTokenizer(name);
+        if (prop.hasNext()) {
+            if (map.containsKey(prop.getIndexedName())) {
+                MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
+                if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
+                    return true;
+                } else {
+                    return metaValue.hasGetter(prop.getChildren());
+                }
+            } else {
+                return false;
+            }
+        } else {
+            return map.containsKey(prop.getName());
+        }
+    }
+
+    @Override
+    public MetaObject instantiatePropertyValue(String name, PropertyTokenizer prop, ObjectFactory objectFactory) {
+        HashMap<String, Object> map = new HashMap<>();
+        set(prop, map);
+        return MetaObject.forObject(map, metaObject.getObjectFactory(), metaObject.getObjectWrapperFactory(), metaObject.getReflectorFactory());
+    }
+
+    @Override
+    public boolean isCollection() {
+        return false;
+    }
+
+    @Override
+    public void add(Object element) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public <E> void addAll(List<E> element) {
+        throw new UnsupportedOperationException();
+    }
+
+}
diff --git a/docs/spring/csad2065e0-930e-11ee-83ff-acde48001122.java b/docs/spring/csad2065e0-930e-11ee-83ff-acde48001122.java
new file mode 100644
index 00000000..a05bb240
--- /dev/null
+++ b/docs/spring/csad2065e0-930e-11ee-83ff-acde48001122.java
@@ -0,0 +1,76 @@
+/**
+ * Copyright 2009-2016 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ibatis.submitted.global_variables_defaults;
+
+import org.apache.ibatis.cache.Cache;
+import org.apache.ibatis.cache.impl.PerpetualCache;
+import org.apache.ibatis.reflection.factory.DefaultObjectFactory;
+
+import java.lang.reflect.Field;
+import java.util.Properties;
+
+public class SupportClasses {
+
+    public static class CustomObjectFactory extends DefaultObjectFactory {
+        private static final long serialVersionUID = 4576592418878031661L;
+        private Properties properties;
+
+        public Properties getProperties() {
+            return properties;
+        }
+
+        @Override
+        public void setProperties(Properties properties) {
+            this.properties = properties;
+        }
+    }
+
+    public static class CustomCache extends PerpetualCache {
+        private String name;
+
+        public CustomCache(String id) {
+            super(id);
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+    }
+
+    static class Utils {
+        static SupportClasses.CustomCache unwrap(Cache cache) {
+            Field field;
+            try {
+                field = cache.getClass().getDeclaredField("delegate");
+            } catch (NoSuchFieldException e) {
+                throw new IllegalStateException(e);
+            }
+            try {
+                field.setAccessible(true);
+                return (SupportClasses.CustomCache) field.get(cache);
+            } catch (IllegalAccessException e) {
+                throw new IllegalStateException(e);
+            } finally {
+                field.setAccessible(false);
+            }
+        }
+    }
+
+}