jetbrick-commons/src/main/java/jetbrick/reflect/KlassInfo.java
public MethodInfo getMethod(String name, Class<?>... parameterTypes) {
        return ExecutableUtils.getExecutable(methodsGetter.get(), name, parameterTypes);
    }
public MethodInfo getMethod(String name, Class<?>... parameterTypes) {
        return ExecutableUtils.getExecutable(methodsGetter.get(), name, parameterTypes);
    }
public MethodInfo getMethod ( String name , Class < ? > ... parameterTypes ) { return ExecutableUtils . getExecutable ( methodsGetter . get ( ) , name , parameterTypes ) ; }
根据目标参数类型，查找完全匹配的方法.

@param parameterTypes - 匹配的方法参数
@return 找到的方法对象，找不到返回 null.
根据目标参数类型，查找完全匹配的方法 .