diff --git a/docs/spring/cs125af9bc-7abd-11ee-98f1-acde48001122.java b/docs/spring/cs125af9bc-7abd-11ee-98f1-acde48001122.java
new file mode 100644
index 00000000..656e461a
--- /dev/null
+++ b/docs/spring/cs125af9bc-7abd-11ee-98f1-acde48001122.java
@@ -0,0 +1,120 @@
+package com.github.huifer.full.shiro.entity;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.Version;
+import java.util.Date;
+import com.baomidou.mybatisplus.extension.activerecord.Model;
+import java.io.Serializable;
+
+/**
+ * 角色和资源绑定表(ShiroRoleBindResource)表实体类
+ *
+ * @author huifer
+ * @since 2021-04-18 10:08:21
+ */
+@SuppressWarnings("serial")
+public class ShiroRoleBindResource extends Model<ShiroRoleBindResource> {
+
+  private Integer id;
+
+  private Integer roleId;
+
+  private Integer resourceId;
+
+  private Date createTime;
+
+  private Integer createUser;
+
+  private Integer updateUser;
+
+  private Date updateTime;
+
+  @Version
+  private Integer version;
+
+  @TableField
+  private Integer deleted;
+
+
+  public Integer getId() {
+    return id;
+  }
+
+  public void setId(Integer id) {
+    this.id = id;
+  }
+
+  public Integer getRoleId() {
+    return roleId;
+  }
+
+  public void setRoleId(Integer roleId) {
+    this.roleId = roleId;
+  }
+
+  public Integer getResourceId() {
+    return resourceId;
+  }
+
+  public void setResourceId(Integer resourceId) {
+    this.resourceId = resourceId;
+  }
+
+  public Date getCreateTime() {
+    return createTime;
+  }
+
+  public void setCreateTime(Date createTime) {
+    this.createTime = createTime;
+  }
+
+  public Integer getCreateUser() {
+    return createUser;
+  }
+
+  public void setCreateUser(Integer createUser) {
+    this.createUser = createUser;
+  }
+
+  public Integer getUpdateUser() {
+    return updateUser;
+  }
+
+  public void setUpdateUser(Integer updateUser) {
+    this.updateUser = updateUser;
+  }
+
+  public Date getUpdateTime() {
+    return updateTime;
+  }
+
+  public void setUpdateTime(Date updateTime) {
+    this.updateTime = updateTime;
+  }
+
+  public Integer getVersion() {
+    return version;
+  }
+
+  public void setVersion(Integer version) {
+    this.version = version;
+  }
+
+  public Integer getDeleted() {
+    return deleted;
+  }
+
+  public void setDeleted(Integer deleted) {
+    this.deleted = deleted;
+  }
+
+  /**
+   * 获取主键值
+   *
+   * @return 主键值
+   */
+  @Override
+  protected Serializable pkVal() {
+    return this.id;
+  }
+}
diff --git a/docs/spring/cs132315a0-7abd-11ee-98f1-acde48001122.java b/docs/spring/cs132315a0-7abd-11ee-98f1-acde48001122.java
new file mode 100644
index 00000000..53d4e084
--- /dev/null
+++ b/docs/spring/cs132315a0-7abd-11ee-98f1-acde48001122.java
@@ -0,0 +1,51 @@
+/**
+ * Copyright 2009-2019 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.nonexistentvariables;
+
+import org.apache.ibatis.BaseDataTest;
+import org.apache.ibatis.exceptions.PersistenceException;
+import org.apache.ibatis.io.Resources;
+import org.apache.ibatis.session.SqlSession;
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.apache.ibatis.session.SqlSessionFactoryBuilder;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import java.io.Reader;
+
+class NonExistentVariablesTest {
+
+    protected static SqlSessionFactory sqlSessionFactory;
+
+    @BeforeAll
+    static void setUp() throws Exception {
+        try (Reader reader = Resources.getResourceAsReader("org/apache/ibatis/submitted/nonexistentvariables/mybatis-config.xml")) {
+            sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
+        }
+
+        BaseDataTest.runScript(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(),
+                "org/apache/ibatis/submitted/nonexistentvariables/CreateDB.sql");
+    }
+
+    @Test
+    void testWrongParameter() {
+        try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
+            Mapper mapper = sqlSession.getMapper(Mapper.class);
+            Assertions.assertThrows(PersistenceException.class, () -> mapper.count(1, "John"));
+        }
+    }
+}
diff --git a/docs/spring/cs13ed6918-7abd-11ee-98f1-acde48001122.java b/docs/spring/cs13ed6918-7abd-11ee-98f1-acde48001122.java
new file mode 100644
index 00000000..37354149
--- /dev/null
+++ b/docs/spring/cs13ed6918-7abd-11ee-98f1-acde48001122.java
@@ -0,0 +1,9 @@
+package com.huifer.dubbo.client.spi;
+
+public class Bumblebee implements Robot {
+
+    @Override
+    public void sayHello() {
+        System.out.println("Hello, I am Bumblebee.");
+    }
+}
diff --git a/docs/spring/cs14b5bfb2-7abd-11ee-98f1-acde48001122.java b/docs/spring/cs14b5bfb2-7abd-11ee-98f1-acde48001122.java
new file mode 100644
index 00000000..42d5cf0c
--- /dev/null
+++ b/docs/spring/cs14b5bfb2-7abd-11ee-98f1-acde48001122.java
@@ -0,0 +1,17 @@
+package com.github.huifer.full.shiro.service;
+
+import com.github.huifer.full.shiro.entity.ShiroPost;
+import com.github.huifer.full.shiro.entity.ShiroRole;
+import com.github.huifer.full.shiro.model.req.post.PostCreateParam;
+import com.github.huifer.full.shiro.model.req.role.RoleCreateParam;
+
+public interface RoleService {
+
+  boolean create(RoleCreateParam param);
+
+  boolean update(RoleCreateParam param, int id);
+
+  boolean delete(int id);
+
+  ShiroRole byId(int id);
+}