diff --git a/src/org/redkale/net/http/Rest.java b/src/org/redkale/net/http/Rest.java
index 59748ad03..5dde1ff1e 100644
--- a/src/org/redkale/net/http/Rest.java
+++ b/src/org/redkale/net/http/Rest.java
@@ -782,15 +782,21 @@ public final class Rest {
         for (final Method method : serviceType.getMethods()) {
             if (Modifier.isStatic(method.getModifiers())) continue;
             if (method.isSynthetic()) continue;
-            Class[] extypes = method.getExceptionTypes();
-            if (extypes.length > 1) continue;
-            if (extypes.length == 1 && extypes[0] != IOException.class) continue;
             if (EXCLUDERMETHODS.contains(method.getName())) continue;
             if ("init".equals(method.getName())) continue;
             if ("destroy".equals(method.getName())) continue;
             if ("version".equals(method.getName())) continue;
 
             RestMapping[] mappings = method.getAnnotationsByType(RestMapping.class);
+            Class[] extypes = method.getExceptionTypes();
+            if (extypes.length > 1) {
+                if (mappings != null && mappings.length > 0) throw new RuntimeException("@" + RestMapping.class.getSimpleName() + " only for method with throws IOException");
+                continue;
+            }
+            if (extypes.length == 1 && extypes[0] != IOException.class) {
+                if (mappings != null && mappings.length > 0) throw new RuntimeException("@" + RestMapping.class.getSimpleName() + " only for method with throws IOException");
+                continue;
+            }
             if (controller == null) continue;
             if (!controller.automapping() && mappings.length < 1) continue;
             boolean ignore = false;
diff --git a/src/org/redkale/net/http/RestMapping.java b/src/org/redkale/net/http/RestMapping.java
index eaa535d66..0b025bb1a 100644
--- a/src/org/redkale/net/http/RestMapping.java
+++ b/src/org/redkale/net/http/RestMapping.java
@@ -10,7 +10,7 @@ import static java.lang.annotation.ElementType.*;
 import static java.lang.annotation.RetentionPolicy.*;
 
 /**
- * 只能依附在Service实现类的public方法上  <br>
+ * 只能依附在Service实现类的public方法上，且方法如果throws只能是IOException  <br>
  * value默认为"/" + Service的类名去掉Service字样的小写字符串 (如HelloService，的默认路径为/hello)。  <br>
  * <p>
  * 详情见: https://redkale.org