完善一些例子
diff --git a/samples/foo/src/main/resources/META-INF/spring-configuration-metadata.json b/samples/foo/src/main/resources/META-INF/spring-configuration-metadata.json
deleted file mode 100644
index 1013fc1..0000000
--- a/samples/foo/src/main/resources/META-INF/spring-configuration-metadata.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "groups": [
-    {
-      "sourceType": "com.supwisdom.leaveschool.foo.mvc.ExceptionErrorProperties",
-      "name": "exception.error-map",
-      "type": "java.util.Map",
-      "description": "Exception class -> error string的映射"
-    }
-  ]
-}
diff --git a/samples/foo/src/main/resources/application.yaml b/samples/foo/src/main/resources/application.yaml
index b223a45..a2938f6 100644
--- a/samples/foo/src/main/resources/application.yaml
+++ b/samples/foo/src/main/resources/application.yaml
@@ -1,6 +1,8 @@
 spring:
   application:
     name: sample-foo
+  mvc:
+    log-resolved-exception: true
 
 infras:
   mvc: