BeanELResolver.java 文件源码

@Override
public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base) {
    if (base == null) {
        return null;
    }

    try {
        BeanInfo info = Introspector.getBeanInfo(base.getClass());
        PropertyDescriptor[] pds = info.getPropertyDescriptors();
        for (int i = 0; i < pds.length; i++) {
            pds[i].setValue(RESOLVABLE_AT_DESIGN_TIME, Boolean.TRUE);
            pds[i].setValue(TYPE, pds[i].getPropertyType());
        }
        return Arrays.asList((FeatureDescriptor[]) pds).iterator();
    } catch (IntrospectionException e) {
        //
    }

    return null;
}