FieldHelper.java 文件源码

/**
 * 通过方法获取属性
 *
 * @param entityClass
 * @return
 */
public List<EntityField> getProperties(Class<?> entityClass) {
    Map<String, Class<?>> genericMap = _getGenericTypeMap(entityClass);
    List<EntityField> entityFields = new ArrayList<EntityField>();
    BeanInfo beanInfo;
    try {
        beanInfo = Introspector.getBeanInfo(entityClass);
    } catch (IntrospectionException e) {
        throw new MapperException(e);
    }
    PropertyDescriptor[] descriptors = beanInfo.getPropertyDescriptors();
    for (PropertyDescriptor desc : descriptors) {
        if (desc != null && !"class".equals(desc.getName())) {
            EntityField entityField = new EntityField(null, desc);
            if (desc.getReadMethod() != null
                    && desc.getReadMethod().getGenericReturnType() != null
                    && desc.getReadMethod().getGenericReturnType() instanceof TypeVariable) {
                entityField.setJavaType(genericMap.get(((TypeVariable) desc.getReadMethod().getGenericReturnType()).getName()));
            } else if (desc.getWriteMethod() != null
                    && desc.getWriteMethod().getGenericParameterTypes() != null
                    && desc.getWriteMethod().getGenericParameterTypes().length == 1
                    && desc.getWriteMethod().getGenericParameterTypes()[0] instanceof TypeVariable) {
                entityField.setJavaType(genericMap.get(((TypeVariable) desc.getWriteMethod().getGenericParameterTypes()[0]).getName()));
            }
            entityFields.add(entityField);
        }
    }
    return entityFields;
}