diff --git a/src/main/java/org/beetl/core/ResourceLoader.java b/src/main/java/org/beetl/core/ResourceLoader.java
index 28c42ad358878eade6ead3409dba5d280aceedc8..f7076825d3a809ed12e5cf9bd1010e4b78cfb3c8 100644
--- a/src/main/java/org/beetl/core/ResourceLoader.java
+++ b/src/main/java/org/beetl/core/ResourceLoader.java
@@ -34,6 +34,23 @@ import java.io.Closeable;
  * 字符串，加密的文本，以及数据库Blob字段等
  *
  * @author xiandafu
+ *
+ * @see org.beetl.core.resource.ClasspathResource
+ * @see org.beetl.core.resource.ClasspathResourceLoader 类路径资源加载器
+ *
+ * @see org.beetl.core.resource.StringTemplateResource
+ * @see org.beetl.core.resource.StringTemplateResourceLoader 字符串模板资源加载器
+ *
+ * @see org.beetl.core.resource.FileResource
+ * @see org.beetl.core.resource.FileResourceLoader 文件资源加载器
+ * @see org.beetl.core.resource.WebAppResourceLoader web应用资源加载器
+ *
+ * @see org.beetl.core.resource.Matcher
+ * @see org.beetl.core.resource.AllowAllMatcher
+ * @see org.beetl.core.resource.StartsWithMatcher
+ * @see org.beetl.core.resource.CompositeResourceLoader 混合形式的资源加载器
+ *
+ * @see org.beetl.core.resource.MapResourceLoader 映射形式的资源加载器
  */
 public interface ResourceLoader<T> extends Closeable {
 
diff --git a/src/main/java/org/beetl/core/lab/BaseEntity.java b/src/main/java/org/beetl/core/lab/BaseEntity.java
index 67b7619471c2b61b35968e8fa033f06c5c5a1ac2..1043dc8c773e416e2602b63b75ff2c37bb865eec 100644
--- a/src/main/java/org/beetl/core/lab/BaseEntity.java
+++ b/src/main/java/org/beetl/core/lab/BaseEntity.java
@@ -1,6 +1,6 @@
 package org.beetl.core.lab;
 
-public interface BaseEntity {
+interface BaseEntity {
     default int getPage() {
         return 1;
     }
diff --git a/src/main/java/org/beetl/core/lab/ColTag.java b/src/main/java/org/beetl/core/lab/ColTag.java
index b98870ba5302967bf7912fda8ad276c257b1b084..f390be93cd78cb489f3b323922b5c937edfc1f32 100644
--- a/src/main/java/org/beetl/core/lab/ColTag.java
+++ b/src/main/java/org/beetl/core/lab/ColTag.java
@@ -5,7 +5,7 @@ import org.beetl.core.tag.Tag;
 import java.io.IOException;
 import java.util.Map;
 
-public class ColTag extends Tag {
+class ColTag extends Tag {
     @Override
     public void render() {
         Tag parent = this.getParent();
@@ -15,9 +15,8 @@ public class ColTag extends Tag {
             String showName = map.get(colName).toString();
             String td = "<td>" + showName + "</td>";
             this.bw.writeString(td);
-        } catch (IOException e) {
-            // ignore
-        }
+        } catch (IOException ignored) {
 
+        }
     }
 }
diff --git a/src/main/java/org/beetl/core/lab/MyTestObject.java b/src/main/java/org/beetl/core/lab/MyTestObject.java
index aa6002d01bd6d53c405bed5b85e83a383650624b..db9f654f5b44b6658fcfea4949f6acb6da6102cb 100644
--- a/src/main/java/org/beetl/core/lab/MyTestObject.java
+++ b/src/main/java/org/beetl/core/lab/MyTestObject.java
@@ -1,8 +1,8 @@
 package org.beetl.core.lab;
 
-public class MyTestObject {
+class MyTestObject {
     String name;
-    int age =12;
+    int age = 12;
 
     public MyTestObject() {
     }
@@ -12,23 +12,23 @@ public class MyTestObject {
         this.name = name;
     }
 
-	public String getName() {
-		return name;
-	}
+    public String getName() {
+        return name;
+    }
 
-	public void setName(String name) {
-		this.name = name;
-	}
+    public void setName(String name) {
+        this.name = name;
+    }
 
-	public int getAge() {
-		return age;
-	}
+    public int getAge() {
+        return age;
+    }
 
-	public void setAge(int age) {
-		this.age = age;
-	}
+    public void setAge(int age) {
+        this.age = age;
+    }
 
-	public MyTestObject self() {
+    public MyTestObject self() {
         return this;
     }
 }
diff --git a/src/main/java/org/beetl/core/lab/TableTag.java b/src/main/java/org/beetl/core/lab/TableTag.java
index 439072982450eddbab73b34d1654cd96aa76ddaa..d2c71abcbb9649787dad98fadbc357f16fd8759d 100644
--- a/src/main/java/org/beetl/core/lab/TableTag.java
+++ b/src/main/java/org/beetl/core/lab/TableTag.java
@@ -2,9 +2,7 @@ package org.beetl.core.lab;
 
 import org.beetl.core.tag.Tag;
 
-import java.util.Map;
-
-public class TableTag extends Tag {
+class TableTag extends Tag {
     @Override
     public void render() {
         this.doBodyRender();
diff --git a/src/main/java/org/beetl/core/lab/TailBean.java b/src/main/java/org/beetl/core/lab/TailBean.java
index 33f44fa186b4a7cdb18250d4d8837d8f69191109..87e656d5cfc28354abc92f3230de5ba26cdfefa5 100644
--- a/src/main/java/org/beetl/core/lab/TailBean.java
+++ b/src/main/java/org/beetl/core/lab/TailBean.java
@@ -3,25 +3,20 @@ package org.beetl.core.lab;
 import java.util.HashMap;
 import java.util.Map;
 
-public class TailBean {
-    protected Map<String, Object> extMap = new HashMap<String, Object>();
+class TailBean {
+    protected Map<String, Object> extMap = new HashMap<>();
     boolean hasLazy = false;
 
     public Object get(String key) {
         return extMap.get(key);
-
     }
 
     public void set(String key, Object value) {
-
         this.extMap.put(key, value);
-
     }
 
     public Map<String, Object> getTails() {
-
         return extMap;
-
     }
 
 }
diff --git a/src/main/java/org/beetl/core/lab/Test.java b/src/main/java/org/beetl/core/lab/Test.java
index 8118133a07b4cff4632b74ce196f20a9e05c875b..ef5a73f6f30fc03b2dce6119ee5c7d40b87e1223 100644
--- a/src/main/java/org/beetl/core/lab/Test.java
+++ b/src/main/java/org/beetl/core/lab/Test.java
@@ -10,7 +10,7 @@ import org.beetl.core.resource.ClasspathResourceLoader;
 /**
  * @author xiandafu
  */
-public class Test {
+class Test {
 
     /** DEBUG flag */
     private static final boolean DEBUG = BeetlConfig.DEBUG;
@@ -31,12 +31,12 @@ public class Test {
             MyTestObject obj = new MyTestObject("abc");
             t.binding("user", obj);
             t.binding("abc", 1234);
-			String str = t.render();
-			// 调试时输入：
+            String str = t.render();
+            // 调试时输入：
             // ((AsmAAFactory) AABuilder.defalutAAFactory).asmBeanFactory.beanMap.get(MyTestObject.class)
             System.out.println(str);
-		}
-        int a =1;
+        }
+        int a = 1;
 
     }
 
diff --git a/src/main/java/org/beetl/core/lab/TestUser.java b/src/main/java/org/beetl/core/lab/TestUser.java
index 0e920e660ecc6202072745184bc353c9433dda54..cb2f39f1791ef817fc97d0c0449eff310f4af0fa 100644
--- a/src/main/java/org/beetl/core/lab/TestUser.java
+++ b/src/main/java/org/beetl/core/lab/TestUser.java
@@ -7,7 +7,7 @@ import java.util.*;
 /**
  * @author 所有测试类采用的Pojo类
  */
-public class TestUser implements BaseEntity {
+class TestUser implements BaseEntity {
 
     /** Log TAG */
     private static final String TAG = "org.beetl.core.lab.TestUser";
diff --git a/src/main/java/org/beetl/core/resource/StringTemplateResource.java b/src/main/java/org/beetl/core/resource/StringTemplateResource.java
index dbd4357637d4ee7163f6d334972c6683964cffd5..ed9d570332a7eee5daee213cb46cd19afe991469 100644
--- a/src/main/java/org/beetl/core/resource/StringTemplateResource.java
+++ b/src/main/java/org/beetl/core/resource/StringTemplateResource.java
@@ -33,6 +33,9 @@ import java.io.StringReader;
 import org.beetl.core.Resource;
 import org.beetl.core.ResourceLoader;
 
+/**
+ * 字符模板资源
+ */
 public class StringTemplateResource extends Resource<String> {
 
     public StringTemplateResource(String template, ResourceLoader resourceLoader) {