PropertyUtils.java 文件源码

public static void writeDirectly(Object destination, PropertyDescriptor propertyDescriptor, Object value) {
    try {
        Field field = findField(destination, propertyDescriptor);
        boolean accessible = field.isAccessible();
        try {
            if (!accessible) {
                field.setAccessible(true);
            }
            field.set(destination, value);
        } finally {
            if (!accessible) {
                field.setAccessible(false);
            }
        }
    } catch (NoSuchFieldException | IllegalAccessException e) {
        throw new ReflectionRuntimeException("Failed to write " + getQualifiedPropertyName(destination, propertyDescriptor), e);
    }
}