diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/BizException.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/BizException.java
index 666fa04..361edec 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/BizException.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/BizException.java
@@ -33,21 +33,13 @@ public class BizException extends RuntimeException {
 
     private static final String DEFAULT_MSG = "业务异常";
 
-    /**
-     * 使用默认 message 构造新的业务异常。
-     * {@code cause} 未初始化，后面可能会通过调用 {@link #initCause} 进行初始化。
-     */
-    public BizException() {
-        super(DEFAULT_MSG);
-    }
-
     /**
      * 使用指定的 {@code message} 构造新的业务异常。
      * {@code cause} 未初始化，后面可能会通过调用 {@link #initCause} 进行初始化。
      *
      * @param message 异常信息
      */
-    public BizException(String message) {
+    protected BizException(String message) {
         super(message);
     }
 
@@ -57,7 +49,7 @@ public class BizException extends RuntimeException {
      *
      * @param cause 包装的异常
      */
-    public BizException(Throwable cause) {
+    protected BizException(Throwable cause) {
         super(cause);
     }
 
@@ -67,8 +59,27 @@ public class BizException extends RuntimeException {
      * @param message 异常信息
      * @param cause   包装的异常
      */
-    public BizException(String message, Throwable cause) {
+    protected BizException(String message, Throwable cause) {
         super(message, cause);
     }
 
+    public static BizException of() {
+        return new BizException(DEFAULT_MSG);
+    }
+
+    public static BizException of(String message) {
+        return new BizException(message);
+    }
+
+    public static BizException of(String errorMessageFormat, Object... errorMessageArgs) {
+        return new BizException(String.format(errorMessageFormat, errorMessageArgs));
+    }
+
+    public static BizException of(Throwable cause) {
+        return new BizException(cause);
+    }
+
+    public static BizException of(String message, Throwable cause) {
+        return new BizException(message, cause);
+    }
 }
diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/system/NoAvailableMacFoundException.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/system/NoAvailableMacFoundException.java
index af45267..d3a74c0 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/system/NoAvailableMacFoundException.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/system/NoAvailableMacFoundException.java
@@ -33,7 +33,7 @@ public class NoAvailableMacFoundException extends SysException {
      * {@code cause} 未初始化，后面可能会通过调用 {@link #initCause} 进行初始化。
      */
     public NoAvailableMacFoundException() {
-        super();
+        super("无法找到可访问的 Mac 地址");
     }
 
     /**
diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/system/SysException.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/system/SysException.java
index 9c8ee6b..322b26a 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/system/SysException.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/system/SysException.java
@@ -30,21 +30,13 @@ public class SysException extends RuntimeException {
 
     private static final String DEFAULT_MSG = "系统异常";
 
-    /**
-     * 使用默认 message 构造新的系统异常。
-     * {@code cause} 未初始化，后面可能会通过调用 {@link #initCause} 进行初始化。
-     */
-    public SysException() {
-        super(DEFAULT_MSG);
-    }
-
     /**
      * 使用指定的 {@code message} 构造新的系统异常。
      * {@code cause} 未初始化，后面可能会通过调用 {@link #initCause} 进行初始化。
      *
      * @param message 异常信息
      */
-    public SysException(String message) {
+    protected SysException(String message) {
         super(message);
     }
 
@@ -54,7 +46,7 @@ public class SysException extends RuntimeException {
      *
      * @param cause 包装的异常
      */
-    public SysException(Throwable cause) {
+    protected SysException(Throwable cause) {
         super(cause);
     }
 
@@ -64,7 +56,27 @@ public class SysException extends RuntimeException {
      * @param message 异常信息
      * @param cause   包装的异常
      */
-    public SysException(String message, Throwable cause) {
+    protected SysException(String message, Throwable cause) {
         super(message, cause);
     }
+
+    public static SysException of() {
+        return new SysException(DEFAULT_MSG);
+    }
+
+    public static SysException of(String message) {
+        return new SysException(message);
+    }
+
+    public static SysException of(String errorMessageFormat, Object... errorMessageArgs) {
+        return new SysException(String.format(errorMessageFormat, errorMessageArgs));
+    }
+
+    public static SysException of(Throwable cause) {
+        return new SysException(cause);
+    }
+
+    public static SysException of(String message, Throwable cause) {
+        return new SysException(message, cause);
+    }
 }
diff --git a/plusone-commons/src/test/java/xyz/zhouxy/plusone/commons/model/dto/CustomUnifiedResponseFactoryTests.java b/plusone-commons/src/test/java/xyz/zhouxy/plusone/commons/model/dto/CustomUnifiedResponseFactoryTests.java
index 6f5dcc1..65c7a47 100644
--- a/plusone-commons/src/test/java/xyz/zhouxy/plusone/commons/model/dto/CustomUnifiedResponseFactoryTests.java
+++ b/plusone-commons/src/test/java/xyz/zhouxy/plusone/commons/model/dto/CustomUnifiedResponseFactoryTests.java
@@ -381,7 +381,7 @@ class CustomUnifiedResponseFactoryTests {
         assertThrows(NullPointerException.class, () -> CustomUnifiedResponses.error(nullStatus, "查询失败", user));
 
         // Throwable
-        BizException bizException = new BizException("业务异常");
+        BizException bizException = BizException.of("业务异常");
         assertThrows(NullPointerException.class, () -> CustomUnifiedResponses.error(nullStatus, bizException));
         assertThrows(NullPointerException.class, () -> CustomUnifiedResponses.error(nullStatus, (Throwable) null));
     }
diff --git a/plusone-commons/src/test/java/xyz/zhouxy/plusone/commons/model/dto/UnifiedResponseTests.java b/plusone-commons/src/test/java/xyz/zhouxy/plusone/commons/model/dto/UnifiedResponseTests.java
index d3e60d6..5d30569 100644
--- a/plusone-commons/src/test/java/xyz/zhouxy/plusone/commons/model/dto/UnifiedResponseTests.java
+++ b/plusone-commons/src/test/java/xyz/zhouxy/plusone/commons/model/dto/UnifiedResponseTests.java
@@ -379,7 +379,7 @@ class UnifiedResponseTests {
         assertThrows(NullPointerException.class, () -> UnifiedResponses.error(nullStatus, "查询失败", user));
 
         // Throwable
-        BizException bizException = new BizException("业务异常");
+        BizException bizException = BizException.of("业务异常");
         assertThrows(NullPointerException.class, () -> UnifiedResponses.error(nullStatus, bizException));
         assertThrows(NullPointerException.class, () -> UnifiedResponses.error(nullStatus, (Throwable) null));
     }