java反射获取方法参数及返回值类型

package test;

    import java.lang.reflect.Method;
    import java.lang.reflect.ParameterizedType;
    import java.lang.reflect.Type;
    import java.util.List;
import java.util.Map;

public class TempTest {
    public static void main(String[] args) throws Exception {
        Method[] methods = TempTest.class.getDeclaredMethods();
        for (Method method : methods) {
            System.out.println("method:" + method.getName());// 方法名

            // //////////////方法的参数
            System.out.println(" paramTypeType: ");
            Type[] paramTypeList = method.getGenericParameterTypes();// 方法的参数列表
            for (Type paramType : paramTypeList) {
                System.out.println("  " + paramType);// 参数类型
                if (paramType instanceof ParameterizedType)/**//* 如果是泛型类型 */{
                    Type[] types = ((ParameterizedType) paramType)
                            .getActualTypeArguments();// 泛型类型列表
                    System.out.println("  TypeArgument: ");
                    for (Type type : types) {
                        System.out.println("   " + type);
                    }
                }
            }

            // //////////////方法的返回值
            System.out.println(" returnType: ");
            Type returnType = method.getGenericReturnType();// 返回类型
            System.out.println("  " + returnType);
            if (returnType instanceof ParameterizedType)/**//* 如果是泛型类型 */{
                Type[] types = ((ParameterizedType) returnType)
                        .getActualTypeArguments();// 泛型类型列表
                System.out.println("  TypeArgument: ");
                for (Type type : types) {
                    System.out.println("   " + type);
                }
            }

        }

    }

    public static String method1(List list) {
       return null;
    }

    private static Map<String, Double> method2(Map<String, Object> map) {
        return null;
    }

}