[Java] 解决MyBatis @param注解参数类型错误异常的问题

private boolean hasNamedParams(Method method) {
   boolean hasNamedParams = false;
   final Object[][] paramAnnos = method.getParameterAnnotations();
   for (Object[] paramAnno : paramAnnos) {
  for (Object aParamAnno : paramAnno) {
   if (aParamAnno instanceof Param) {
    hasNamedParams = true;
    break;
   }
  }
   }
   return hasNamedParams;
  }

@SuppressWarnings("unchecked")
 protected T newInstance(MapperProxy<T> mapperProxy) {
//jdk的动态代理生成mapper对象
  return (T) Proxy.newProxyInstance(mapperInterface.getClassLoader(), new Class[] { mapperInterface }, mapperProxy);
 }
 public T newInstance(SqlSession sqlSession) {
//MapperProxy实现了Invocation接口
  final MapperProxy<T> mapperProxy = new MapperProxy<T>(sqlSession, mapperInterface, methodCache);
  return newInstance(mapperProxy);
 }