diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/bean/BeanDesc.java b/hutool-core/src/main/java/org/dromara/hutool/core/bean/BeanDesc.java
index d03c27233..781216a9e 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/bean/BeanDesc.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/bean/BeanDesc.java
@@ -156,7 +156,8 @@ public class BeanDesc implements Serializable {
 		PropDesc prop;
 		for (final Field field : FieldUtil.getFields(this.beanClass)) {
 			// 排除静态属性和对象子类
-			if (!ModifierUtil.isStatic(field) && !FieldUtil.isOuterClassField(field)) {
+			if (!ModifierUtil.isStatic(field) &&
+				!FieldUtil.isOuterClassField(field)) {
 				prop = createProp(field, gettersAndSetters);
 				// 只有不存在时才放入，防止父类属性覆盖子类属性
 				this.propMap.putIfAbsent(prop.getFieldName(), prop);
diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/io/BufferUtil.java b/hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/BufferUtil.java
similarity index 98%
rename from hutool-core/src/main/java/org/dromara/hutool/core/io/BufferUtil.java
rename to hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/BufferUtil.java
index d72e6ebfb..d384ec342 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/io/BufferUtil.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/BufferUtil.java
@@ -10,7 +10,7 @@
  * See the Mulan PSL v2 for more details.
  */
 
-package org.dromara.hutool.core.io;
+package org.dromara.hutool.core.io.buffer;
 
 import org.dromara.hutool.core.text.StrUtil;
 import org.dromara.hutool.core.util.ByteUtil;
@@ -23,7 +23,7 @@ import java.nio.charset.Charset;
 import java.util.Arrays;
 
 /**
- * {@link ByteBuffer} 工具类<br>
+ * {@link ByteBuffer} 、{@link CharBuffer}工具类<br>
  * 此工具来自于 t-io 项目以及其它项目的相关部分收集<br>
  * ByteBuffer的相关介绍见：https://www.cnblogs.com/ruber/p/6857159.html
  *
diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/io/FastByteBuffer.java b/hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/FastByteBuffer.java
similarity index 93%
rename from hutool-core/src/main/java/org/dromara/hutool/core/io/FastByteBuffer.java
rename to hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/FastByteBuffer.java
index af3ce180f..23b89d2a1 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/io/FastByteBuffer.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/FastByteBuffer.java
@@ -10,7 +10,7 @@
  * See the Mulan PSL v2 for more details.
  */
 
-package org.dromara.hutool.core.io;
+package org.dromara.hutool.core.io.buffer;
 
 /**
  * 代码移植自<a href="https://github.com/biezhi/blade">blade</a><br>
@@ -51,12 +51,20 @@ public class FastByteBuffer {
 	 */
 	private final int minChunkLen;
 
+	/**
+	 * 构造
+	 */
 	public FastByteBuffer() {
 		this(1024);
 	}
 
+	/**
+	 * 构造
+	 *
+	 * @param size 一个缓冲区的最小字节数
+	 */
 	public FastByteBuffer(int size) {
-		if(size <= 0){
+		if (size <= 0) {
 			size = 1024;
 		}
 		this.minChunkLen = Math.abs(size);
@@ -90,8 +98,8 @@ public class FastByteBuffer {
 	 * 向快速缓冲加入数据
 	 *
 	 * @param array 数据
-	 * @param off 偏移量
-	 * @param len 字节数
+	 * @param off   偏移量
+	 * @param len   字节数
 	 * @return 快速缓冲自身 @see FastByteBuffer
 	 */
 	public FastByteBuffer append(final byte[] array, final int off, final int len) {
@@ -134,7 +142,6 @@ public class FastByteBuffer {
 	 * 向快速缓冲加入数据
 	 *
 	 * @param array 数据
-	 *
 	 * @return 快速缓冲自身 @see FastByteBuffer
 	 */
 	public FastByteBuffer append(final byte[] array) {
@@ -176,10 +183,20 @@ public class FastByteBuffer {
 		return this;
 	}
 
+	/**
+	 * 长度
+	 *
+	 * @return 长度
+	 */
 	public int size() {
 		return size;
 	}
 
+	/**
+	 * 是否为空
+	 *
+	 * @return 是否为空
+	 */
 	public boolean isEmpty() {
 		return size == 0;
 	}
@@ -193,6 +210,11 @@ public class FastByteBuffer {
 		return currentBufferIndex;
 	}
 
+	/**
+	 * 获取当前缓冲偏移量
+	 *
+	 * @return 当前缓冲偏移量
+	 */
 	public int offset() {
 		return offset;
 	}
@@ -207,6 +229,9 @@ public class FastByteBuffer {
 		return buffers[index];
 	}
 
+	/**
+	 * 复位缓冲
+	 */
 	public void reset() {
 		size = 0;
 		offset = 0;
@@ -243,7 +268,7 @@ public class FastByteBuffer {
 	 * 返回快速缓冲中的数据
 	 *
 	 * @param start 逻辑起始位置
-	 * @param len 逻辑字节长
+	 * @param len   逻辑字节长
 	 * @return 快速缓冲中的数据
 	 */
 	public byte[] toArray(int start, final int len) {
diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/package-info.java b/hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/package-info.java
new file mode 100644
index 000000000..7d0fcafc1
--- /dev/null
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/io/buffer/package-info.java
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2023 looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+/**
+ * {@link java.nio.Buffer}相关工具封装
+ *
+ * @author looly
+ */
+package org.dromara.hutool.core.io.buffer;
diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/io/stream/FastByteArrayOutputStream.java b/hutool-core/src/main/java/org/dromara/hutool/core/io/stream/FastByteArrayOutputStream.java
index cc7498444..b1e11f340 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/io/stream/FastByteArrayOutputStream.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/io/stream/FastByteArrayOutputStream.java
@@ -12,7 +12,7 @@
 
 package org.dromara.hutool.core.io.stream;
 
-import org.dromara.hutool.core.io.FastByteBuffer;
+import org.dromara.hutool.core.io.buffer.FastByteBuffer;
 import org.dromara.hutool.core.io.IORuntimeException;
 import org.dromara.hutool.core.util.CharsetUtil;
 import org.dromara.hutool.core.util.ObjUtil;
@@ -62,6 +62,11 @@ public class FastByteArrayOutputStream extends OutputStream {
 		buffer.append((byte) b);
 	}
 
+	/**
+	 * 长度
+	 *
+	 * @return 长度
+	 */
 	public int size() {
 		return buffer.size();
 	}
@@ -74,18 +79,22 @@ public class FastByteArrayOutputStream extends OutputStream {
 		// nop
 	}
 
+	/**
+	 * 复位
+	 */
 	public void reset() {
 		buffer.reset();
 	}
 
 	/**
 	 * 写出
+	 *
 	 * @param out 输出流
 	 * @throws IORuntimeException IO异常
 	 */
 	public void writeTo(final OutputStream out) throws IORuntimeException {
 		final int index = buffer.index();
-		if(index < 0){
+		if (index < 0) {
 			// 无数据写出
 			return;
 		}
@@ -104,6 +113,7 @@ public class FastByteArrayOutputStream extends OutputStream {
 
 	/**
 	 * 转为Byte数组
+	 *
 	 * @return Byte数组
 	 */
 	public byte[] toByteArray() {
@@ -117,12 +127,13 @@ public class FastByteArrayOutputStream extends OutputStream {
 
 	/**
 	 * 转为字符串
+	 *
 	 * @param charset 编码,null表示默认编码
 	 * @return 字符串
 	 */
 	public String toString(final Charset charset) {
 		return new String(toByteArray(),
-				ObjUtil.defaultIfNull(charset, CharsetUtil::defaultCharset));
+			ObjUtil.defaultIfNull(charset, CharsetUtil::defaultCharset));
 	}
 
 }
diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/reflect/MethodUtil.java b/hutool-core/src/main/java/org/dromara/hutool/core/reflect/MethodUtil.java
index 0c6e31d25..3f528aca4 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/reflect/MethodUtil.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/reflect/MethodUtil.java
@@ -24,6 +24,7 @@ import org.dromara.hutool.core.lang.Singleton;
 import org.dromara.hutool.core.map.WeakConcurrentMap;
 import org.dromara.hutool.core.text.StrUtil;
 import org.dromara.hutool.core.array.ArrayUtil;
+import org.dromara.hutool.core.util.BooleanUtil;
 
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -215,10 +216,10 @@ public class MethodUtil {
 		if (ArrayUtil.isNotEmpty(methods)) {
 			for (final Method method : methods) {
 				if (StrUtil.equals(methodName, method.getName(), ignoreCase)
-						&& ClassUtil.isAllAssignableFrom(method.getParameterTypes(), paramTypes)
-						//排除桥接方法，pr#1965@Github
-						//排除协变桥接方法，pr#1965@Github
-						&& (res == null || res.getReturnType().isAssignableFrom(method.getReturnType()))) {
+					&& ClassUtil.isAllAssignableFrom(method.getParameterTypes(), paramTypes)
+					//排除桥接方法，pr#1965@Github
+					//排除协变桥接方法，pr#1965@Github
+					&& (res == null || res.getReturnType().isAssignableFrom(method.getReturnType()))) {
 					res = method;
 				}
 			}
@@ -284,8 +285,8 @@ public class MethodUtil {
 		if (ArrayUtil.isNotEmpty(methods)) {
 			for (final Method method : methods) {
 				if (StrUtil.equals(methodName, method.getName(), ignoreCase)
-						//排除协变桥接方法，pr#1965@Github
-						&& (res == null || res.getReturnType().isAssignableFrom(method.getReturnType()))) {
+					//排除协变桥接方法，pr#1965@Github
+					&& (res == null || res.getReturnType().isAssignableFrom(method.getReturnType()))) {
 					res = method;
 				}
 			}
@@ -335,7 +336,7 @@ public class MethodUtil {
 	public static Method[] getMethods(final Class<?> beanClass) throws SecurityException {
 		Assert.notNull(beanClass);
 		return METHODS_CACHE.computeIfAbsent(beanClass,
-				(key) -> getMethodsDirectly(beanClass, true, true));
+			(key) -> getMethodsDirectly(beanClass, true, true));
 	}
 
 	/**
@@ -348,7 +349,7 @@ public class MethodUtil {
 	public static Method[] getDeclaredMethods(final Class<?> beanClass) throws SecurityException {
 		Assert.notNull(beanClass);
 		return DECLARED_METHODS_CACHE.computeIfAbsent(beanClass,
-				key -> getMethodsDirectly(beanClass, false, Objects.equals(Object.class, beanClass)));
+			key -> getMethodsDirectly(beanClass, false, Objects.equals(Object.class, beanClass)));
 	}
 
 	/**
@@ -398,8 +399,8 @@ public class MethodUtil {
 	 */
 	public static boolean isEqualsMethod(final Method method) {
 		if (method == null ||
-				1 != method.getParameterCount() ||
-				!"equals".equals(method.getName())) {
+			1 != method.getParameterCount() ||
+			!"equals".equals(method.getName())) {
 			return false;
 		}
 		return (method.getParameterTypes()[0] == Object.class);
@@ -413,8 +414,8 @@ public class MethodUtil {
 	 */
 	public static boolean isHashCodeMethod(final Method method) {
 		return method != null//
-				&& "hashCode".equals(method.getName())//
-				&& isEmptyParam(method);
+			&& "hashCode".equals(method.getName())//
+			&& isEmptyParam(method);
 	}
 
 	/**
@@ -425,8 +426,8 @@ public class MethodUtil {
 	 */
 	public static boolean isToStringMethod(final Method method) {
 		return method != null//
-				&& "toString".equals(method.getName())//
-				&& isEmptyParam(method);
+			&& "toString".equals(method.getName())//
+			&& isEmptyParam(method);
 	}
 
 	/**
@@ -471,32 +472,91 @@ public class MethodUtil {
 	 * @since 5.7.20
 	 */
 	public static boolean isGetterOrSetter(final Method method, final boolean ignoreCase) {
+		// 参数个数必须为1
+		final int parameterCount = method.getParameterCount();
+		switch (parameterCount){
+			case 0:
+				return isGetter(method, ignoreCase);
+			case 1:
+				return isSetter(method, ignoreCase);
+			default:
+				return false;
+		}
+	}
+
+	/**
+	 * 检查给定方法是否为Setter方法，规则为：<br>
+	 * <ul>
+	 *     <li>方法参数必须为1个</li>
+	 *     <li>判断是否以“set”开头</li>
+	 * </ul>
+	 *
+	 * @param method     方法
+	 * @param ignoreCase 是否忽略方法名的大小写
+	 * @return 是否为Setter方法
+	 */
+	public static boolean isSetter(final Method method, final boolean ignoreCase) {
+		if (null == method) {
+			return false;
+		}
+
+		// 参数个数必须为1
+		final int parameterCount = method.getParameterCount();
+		if (1 != parameterCount) {
+			return false;
+		}
+
+		String name = method.getName();
+		// 跳过set这类特殊方法
+		if ("set".equals(name)) {
+			return false;
+		}
+
+		if (ignoreCase) {
+			name = name.toLowerCase();
+		}
+		return name.startsWith("set");
+	}
+
+	/**
+	 * 检查给定方法是否为Getter方法，规则为：<br>
+	 * <ul>
+	 *     <li>方法参数必须为0个</li>
+	 *     <li>方法名称不能是getClass</li>
+	 *     <li>"is"开头返回必须为boolean或Boolean</li>
+	 *     <li>是否以“get”</li>
+	 * </ul>
+	 *
+	 * @param method     方法
+	 * @param ignoreCase 是否忽略方法名的大小写
+	 * @return 是否为Getter方法
+	 */
+	public static boolean isGetter(final Method method, final boolean ignoreCase) {
 		if (null == method) {
 			return false;
 		}
 
 		// 参数个数必须为0或1
 		final int parameterCount = method.getParameterCount();
-		if (parameterCount > 1) {
+		if (0 != parameterCount) {
 			return false;
 		}
 
 		String name = method.getName();
-		// 跳过getClass这个特殊方法
-		if ("getClass".equals(name)) {
+		// 跳过getClass、get、is这类特殊方法
+		if ("getClass".equals(name) || "get".equals(name) || "is".equals(name)) {
 			return false;
 		}
+
 		if (ignoreCase) {
 			name = name.toLowerCase();
 		}
-		switch (parameterCount) {
-			case 0:
-				return name.startsWith("get") || name.startsWith("is");
-			case 1:
-				return name.startsWith("set");
-			default:
-				return false;
+
+		if (name.startsWith("is")) {
+			// 判断返回值是否为Boolean
+			return BooleanUtil.isBoolean(method.getReturnType());
 		}
+		return name.startsWith("get");
 	}
 
 	// --------------------------------------------------------------------------------------------------------- invoke
diff --git a/hutool-core/src/test/java/org/dromara/hutool/core/io/BufferUtilTest.java b/hutool-core/src/test/java/org/dromara/hutool/core/io/BufferUtilTest.java
index 5b03004eb..f017d455c 100644
--- a/hutool-core/src/test/java/org/dromara/hutool/core/io/BufferUtilTest.java
+++ b/hutool-core/src/test/java/org/dromara/hutool/core/io/BufferUtilTest.java
@@ -2,6 +2,7 @@ package org.dromara.hutool.core.io;
 
 import java.nio.ByteBuffer;
 
+import org.dromara.hutool.core.io.buffer.BufferUtil;
 import org.dromara.hutool.core.text.StrUtil;
 import org.dromara.hutool.core.util.CharsetUtil;
 import org.junit.jupiter.api.Assertions;
diff --git a/hutool-socket/src/test/java/org/dromara/hutool/socket/aio/AioServerTest.java b/hutool-socket/src/test/java/org/dromara/hutool/socket/aio/AioServerTest.java
index c8705ab8b..3bb0cafb1 100644
--- a/hutool-socket/src/test/java/org/dromara/hutool/socket/aio/AioServerTest.java
+++ b/hutool-socket/src/test/java/org/dromara/hutool/socket/aio/AioServerTest.java
@@ -1,7 +1,7 @@
 package org.dromara.hutool.socket.aio;
 
 import org.dromara.hutool.core.date.DateUtil;
-import org.dromara.hutool.core.io.BufferUtil;
+import org.dromara.hutool.core.io.buffer.BufferUtil;
 import org.dromara.hutool.core.lang.Console;
 import org.dromara.hutool.core.text.StrUtil;
 import org.dromara.hutool.log.StaticLog;
diff --git a/hutool-socket/src/test/java/org/dromara/hutool/socket/nio/NioClientTest.java b/hutool-socket/src/test/java/org/dromara/hutool/socket/nio/NioClientTest.java
index 2590622a9..342e99045 100644
--- a/hutool-socket/src/test/java/org/dromara/hutool/socket/nio/NioClientTest.java
+++ b/hutool-socket/src/test/java/org/dromara/hutool/socket/nio/NioClientTest.java
@@ -1,6 +1,6 @@
 package org.dromara.hutool.socket.nio;
 
-import org.dromara.hutool.core.io.BufferUtil;
+import org.dromara.hutool.core.io.buffer.BufferUtil;
 import org.dromara.hutool.core.lang.Console;
 import org.dromara.hutool.core.text.StrUtil;
 import lombok.SneakyThrows;
diff --git a/hutool-socket/src/test/java/org/dromara/hutool/socket/nio/NioServerTest.java b/hutool-socket/src/test/java/org/dromara/hutool/socket/nio/NioServerTest.java
index 2103afa8a..ad7c0f2ba 100644
--- a/hutool-socket/src/test/java/org/dromara/hutool/socket/nio/NioServerTest.java
+++ b/hutool-socket/src/test/java/org/dromara/hutool/socket/nio/NioServerTest.java
@@ -1,6 +1,6 @@
 package org.dromara.hutool.socket.nio;
 
-import org.dromara.hutool.core.io.BufferUtil;
+import org.dromara.hutool.core.io.buffer.BufferUtil;
 import org.dromara.hutool.core.io.IORuntimeException;
 import org.dromara.hutool.core.io.IoUtil;
 import org.dromara.hutool.core.lang.Console;