Java Reflection Method Get from Object getMethod(Object obj, String methodName, Class... parameterTypes)

Description

get Method

License

Apache License

Declaration

public static Method getMethod(Object obj, String methodName, Class<?>... parameterTypes) 

Method Source Code

//package com.java2s;
/**/*from  www. ja v  a2s. c  o  m*/
 * Copyright (c) 2011-2014, liuchangng@qq.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

import java.lang.reflect.Method;

public class Main {

    public static Method getMethod(Object obj, String methodName, Class<?>... parameterTypes) {
        try {
            Method method = getClass(obj).getDeclaredMethod(methodName, parameterTypes);
            method.setAccessible(true);
            return method;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static Method getMethod(Class<?> cls, String methodName, Class<?>... parameterTypes) {
        try {
            Method method = cls.getDeclaredMethod(methodName, parameterTypes);
            method.setAccessible(true);
            return method;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static Class<?> getClass(Object obj) {
        try {
            return Class.forName(obj.getClass().getName());
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}

Related

1. getMethod(Object o, String methodName, Class[] paramTypes)
2. getMethod(Object obj, Class[] paramTypes, String methodName)
3. getMethod(Object obj, String fieldName)
4. getMethod(Object obj, String methodName)
5. getMethod(Object obj, String methodName, Class paramClass)
6. getMethod(Object obj, String name, Class... types)
7. getMethod(Object object, String methodName, Class... arguments)
8. getMethod(Object object, String name, Object... params)
9. getMethod(Object oo, String mname)