用JAVA Bean 反射得到set,get方法

/**

 * java反射bean的get方法

 *

 * @param objectClass

 * @param fieldName

 * @return

 */

@SuppressWarnings("unchecked")

public static Method getGetMethod(Class objectClass, String fieldName) {

    StringBuffer sb = new StringBuffer();

    sb.append("get");

    sb.append(fieldName.substring(0, 1).toUpperCase());

    sb.append(fieldName.substring(1));

    try {

        return objectClass.getMethod(sb.toString());

    } catch (Exception e) {

    }

    return null;

}



/**

 * java反射bean的set方法

 *

 * @param objectClass

 * @param fieldName

 * @return

 */

@SuppressWarnings("unchecked")

public static Method getSetMethod(Class objectClass, String fieldName) {

    try {

        Class[] parameterTypes = new Class[1];

        Field field = objectClass.getDeclaredField(fieldName);

        parameterTypes[0] = field.getType();

        StringBuffer sb = new StringBuffer();

        sb.append("set");

        sb.append(fieldName.substring(0, 1).toUpperCase());

        sb.append(fieldName.substring(1));

        Method method = objectClass.getMethod(sb.toString(), parameterTypes);

        return method;

    } catch (Exception e) {

        e.printStackTrace();

    }

    return null;

}



/**

 * 執行set方法

 *

 * @param o執行對象

 * @param fieldName屬性

 * @param value值

 */

public static void invokeSet(Object o, String fieldName, Object value) {

    Method method = getSetMethod(o.getClass(), fieldName);

    try {

        method.invoke(o, new Object[] { value });

    } catch (Exception e) {

        e.printStackTrace();

    }

}



/**

 * 執行get方法

 *

 * @param o執行對象

 * @param fieldName屬性

 */

public static Object invokeGet(Object o, String fieldName) {

    Method method = getGetMethod(o.getClass(), fieldName);

    try {

        return method.invoke(o, new Object[0]);

    } catch (Exception e) {

        e.printStackTrace();

    }

    return null;

}