diff --git a/README.md b/README.md
index 4ccb1b9..6e03650 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ System.out.println(result); // Output: Return string
 ```java
 public final class LoginException
         extends RuntimeException
-        implements IMultiTypesException<LoginException, LoginException.Type> {
+        implements IMultiTypesException<LoginException, LoginException.Type, String> {
     private static final long serialVersionUID = 881293090625085616L;
     private final Type type;
     private LoginException(@Nonnull Type type, @Nonnull String message) {
@@ -104,7 +104,7 @@ public final class LoginException
 
     // ...
 
-    public enum Type implements IExceptionType<LoginException> {
+    public enum Type implements IExceptionType<LoginException, String> {
         DEFAULT("00", "当前会话未登录"),
         NOT_TOKEN("10", "未提供token"),
         INVALID_TOKEN("20", "token无效"),
diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/IMultiTypesException.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/IMultiTypesException.java
index c91c1bf..7ac279c 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/IMultiTypesException.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/IMultiTypesException.java
@@ -15,8 +15,11 @@
  */
 package xyz.zhouxy.plusone.commons.exception;
 
+import java.io.Serializable;
+
 import javax.annotation.Nonnull;
 
+import xyz.zhouxy.plusone.commons.annotation.Virtual;
 import xyz.zhouxy.plusone.commons.base.IWithCode;
 
 /**
@@ -35,7 +38,7 @@ import xyz.zhouxy.plusone.commons.base.IWithCode;
  * <pre>
  * public final class LoginException
  *         extends RuntimeException
- *         implements IMultiTypesException&lt;LoginException, LoginException.Type&gt; {
+ *         implements IMultiTypesException&lt;LoginException, LoginException.Type, String&gt; {
  *     private static final long serialVersionUID = 881293090625085616L;
  *     private final Type type;
  *     private LoginException(&#64;Nonnull Type type, &#64;Nonnull String message) {
@@ -62,7 +65,7 @@ import xyz.zhouxy.plusone.commons.base.IWithCode;
  *
  *     // ...
  *
- *     public enum Type implements IExceptionType&lt;LoginException&gt; {
+ *     public enum Type implements IExceptionType&lt;LoginException, String&gt; {
  *         DEFAULT("00", "当前会话未登录"),
  *         NOT_TOKEN("10", "未提供token"),
  *         INVALID_TOKEN("20", "token无效"),
@@ -126,7 +129,8 @@ import xyz.zhouxy.plusone.commons.base.IWithCode;
  */
 public interface IMultiTypesException<
         X extends Exception,
-        T extends IMultiTypesException.IExceptionType<X>> {
+        T extends IMultiTypesException.IExceptionType<X, TCode>,
+        TCode extends Serializable> {
 
     /**
      * 异常类型
@@ -141,20 +145,25 @@ public interface IMultiTypesException<
      *
      * @return 异常类型编码
      */
-    default @Nonnull String getTypeCode() {
+    default @Nonnull TCode getTypeCode() {
         return getType().getCode();
     }
 
     /**
      * 异常类型
      */
-    public static interface IExceptionType<X extends Exception>
-            extends IWithCode<String>, IExceptionFactory<X> {
+    public static interface IExceptionType<X extends Exception, TCode extends Serializable>
+            extends IWithCode<TCode>, IExceptionFactory<X> {
 
         /**
          * 默认异常信息
          */
         String getDefaultMessage();
 
+        @Virtual
+        default String getDescription() {
+            return getDefaultMessage();
+        }
+
     }
 }
diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/ParsingFailureException.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/ParsingFailureException.java
index e6e695d..0f86910 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/ParsingFailureException.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/ParsingFailureException.java
@@ -39,7 +39,7 @@ import xyz.zhouxy.plusone.commons.exception.IMultiTypesException.IExceptionType;
  */
 public final class ParsingFailureException
         extends Exception
-        implements IMultiTypesException<ParsingFailureException, ParsingFailureException.Type> {
+        implements IMultiTypesException<ParsingFailureException, ParsingFailureException.Type, String> {
     private static final long serialVersionUID = 795996090625132616L;
 
     private final Type type;
@@ -171,7 +171,7 @@ public final class ParsingFailureException
     /** XML 解析失败 */
     public static final Type XML_PARSING_FAILURE = Type.XML_PARSING_FAILURE;
 
-    public enum Type implements IExceptionType<ParsingFailureException> {
+    public enum Type implements IExceptionType<ParsingFailureException, String> {
         DEFAULT("00", "解析失败"),
         NUMBER_PARSING_FAILURE("10", "数字转换失败"),
         DATE_TIME_PARSING_FAILURE("20", "时间解析失败"),
diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/InvalidInputException.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/InvalidInputException.java
index 917c9d1..b739c82 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/InvalidInputException.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/InvalidInputException.java
@@ -35,7 +35,7 @@ import xyz.zhouxy.plusone.commons.exception.IMultiTypesException;
  */
 public final class InvalidInputException
         extends RequestParamsException
-        implements IMultiTypesException<InvalidInputException, InvalidInputException.Type> {
+        implements IMultiTypesException<InvalidInputException, InvalidInputException.Type, String> {
     private static final long serialVersionUID = -28994090625082516L;
 
     private final Type type;
@@ -109,7 +109,7 @@ public final class InvalidInputException
         return this.type;
     }
 
-    public enum Type implements IExceptionType<InvalidInputException> {
+    public enum Type implements IExceptionType<InvalidInputException, String> {
         DEFAULT("00", "用户输入内容非法"),
         CONTAINS_ILLEGAL_AND_MALICIOUS_LINKS("01", "包含非法恶意跳转链接"),
         CONTAINS_ILLEGAL_WORDS("02", "包含违禁敏感词"),
diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/package-info.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/package-info.java
index 1bc1a3c..0ba9d8a 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/package-info.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/package-info.java
@@ -31,7 +31,7 @@
  * <pre>
  * public final class LoginException
  *         extends RuntimeException
- *         implements IMultiTypesException&lt;LoginException, LoginException.Type&gt; {
+ *         implements IMultiTypesException&lt;LoginException, LoginException.Type, String&gt; {
  *     private static final long serialVersionUID = 881293090625085616L;
  *     private final Type type;
  *     private LoginException(&#64;Nonnull Type type, &#64;Nonnull String message) {
@@ -58,7 +58,7 @@
  *
  *     // ...
  *
- *     public enum Type implements IExceptionType&lt;LoginException&gt; {
+ *     public enum Type implements IExceptionType&lt;LoginException, String&gt; {
  *         DEFAULT("00", "当前会话未登录"),
  *         NOT_TOKEN("10", "未提供token"),
  *         INVALID_TOKEN("20", "token无效"),