public MethodParameterResolver(
     Class<?> controllerClazz,
     Method method,
     ParameterNameDiscovererImpl parameterNameDiscoverer,
     ResolverFactory resolverFactory) {
   this.method = method;
   Class<?>[] parameterTypes = method.getParameterTypes();
   parameterNames = parameterNameDiscoverer.getParameterNames(method);
   resolvers = new ParamResolver[parameterTypes.length];
   paramMetaDatas = new ParamMetaData[parameterTypes.length];
   //
   for (int i = 0; i < parameterTypes.length; i++) {
     ParamMetaDataImpl paramMetaData =
         new ParamMetaDataImpl(controllerClazz, method, parameterTypes[i], parameterNames[i], i);
     paramMetaDatas[i] = paramMetaData;
     resolvers[i] = resolverFactory.supports(paramMetaData);
   }
 }