Java Reflection Method Invoke invokeMethod(Object o, String methodName, Object[] params)

Description

invoke Method

License

Apache License

Declaration

public static Object invokeMethod(Object o, String methodName, Object[] params) 

Method Source Code

//package com.java2s;
/**/*from ww  w  .  jav  a 2s.  com*/
 * Copyright (C) 2012 Red Hat, Inc. and/or its affiliates.
 *
 * 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.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {
    public static Object invokeMethod(Object o, String methodName, Object[] params) {
        Method methods[] = o.getClass().getMethods();
        for (int i = 0; i < methods.length; ++i) {
            if (methodName.equals(methods[i].getName())) {
                try {
                    methods[i].setAccessible(true);
                    return methods[i].invoke(o, params);
                } catch (IllegalAccessException ex) {
                    return null;
                } catch (InvocationTargetException ite) {
                    return null;
                }
            }
        }
        return null;
    }
}

Related

1. invokeMethod(Object handle, String methodName, Class[] parameterClasses, Object... args)
2. invokeMethod(Object handler, String strMethod, Class[] cls, Object... params)
3. invokeMethod(Object instance, String methodName, Class expectedReturnType)
4. invokeMethod(Object o, String fieldName)
5. invokeMethod(Object o, String methodName, Object... args)
6. invokeMethod(Object obj, Class type, String name, Class[] parameterTypes, Object[] parameters)
7. invokeMethod(Object obj, Method method, Object... args)
8. invokeMethod(Object obj, String mehtodName, Object... parameter)
9. invokeMethod(Object obj, String method)