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src/Validator/BindForm.php

@@ -39,7 +39,7 @@ class BindForm implements InjectParameterInterface
                 if (!class_exists($attribute->getName())) {
                     continue;
                 }
-                $rule = inject($attribute->newInstance());
+                $rule = \inject($attribute->newInstance());
                 if ($rule instanceof ValidatorInterface) {
                     $validator->addRule($property->getName(), $rule);
                 }

src/Validator/Validator.php

@@ -51,7 +51,10 @@ class Validator
      */
     public function addRule(string $name, ValidatorInterface $rule): void
     {
-        $this->rules[$name] = $rule;
+        if (!isset($this->rules[$name])) {
+            $this->rules[$name] = [];
+        }
+        $this->rules[$name][] = $rule;
     }
 
 
@@ -93,10 +96,12 @@ class Validator
     public function run(ServerRequestInterface|Request $request): bool
     {
         foreach ($this->rules as $name => $rule) {
-            if (!$rule->dispatch($this->formData, $name)) {
+            foreach ($rule as $item) {
+                if (!$item->dispatch($this->formData, $name)) {
                     return $this->addError($name);
                 }
             }
+        }
         return true;
     }
 
@@ -107,7 +112,7 @@ class Validator
      */
     private function addError($field): bool
     {
-        $this->message = $field . ' error';
+        $this->message = 'Field ' . $field . ' param format fail.';
         return false;
     }
 

src/Validator/ValidatorMiddleware.php

@@ -37,7 +37,7 @@ class ValidatorMiddleware implements MiddlewareInterface
     {
         $validator = $this->validator->bindData($request);
         if (!$validator->run($request)) {
-            return $this->response->html('400 Bad Request', 400);
+            return $this->response->html($validator->error(), 415);
         } else {
             return $handler->handle($request);
         }