我在这里使用反射和递归来获取我要测试的坚固对象中的所有字段。 我也正在使用PODAM，我希望有人会发现它有用。
public class Populate {
private final PodamFactory podamFactory = new PodamFactoryImpl();
private
P getManufacturedPojo(final Class
klass) {
return podamFactory.manufacturePojo(klass);
}
private Object populateAllIn(final Class targetClass) throws IllegalAccessException, InstantiationException {
final Object target = targetClass.newInstance();
//Get all fields present on the target class
final Set allFields = getAllFields(targetClass, Predicates.alwaysTrue());
//Iterate through fields
for (final Field field : allFields) {
//Set fields to be accessible even when private
field.setAccessible(true);
final Class> fieldType = field.getType();
if (fieldType.isEnum() && EnrichmentType.class.isAssignableFrom(fieldType)) {
//handle any enums here if you have any
}
//Check if the field is a collection
if (Collection.class.isAssignableFrom(fieldType)) {
//Get the generic type class of the collection
final Class> genericClass = getGenericClass(field);
//Check if the generic type of a list is abstract
if (Modifier.isAbstract(genericClass.getModifiers())) {
//You might want to use any class that extends
//Your abstract class like
final List list = new ArrayList<>();
list.add(populateAllIn(ClassExtendingAbstract.class));
field.set(target, list);
} else {
final List list = new ArrayList<>();
list.add(populateAllIn(genericClass));
field.set(target, list);
}
} else if ((isSimpleType(fieldType) || isSimplePrimitiveWrapperType(fieldType)) && !fieldType.isEnum()) {
field.set(target, getManufacturedPojo(fieldType));
} else if (!fieldType.isEnum()) {
field.set(target, populateAllIn(fieldType));
}
}
return target;
}
和一些辅助方法。 代码可能并不完美，但是可以工作:)。
private Class> getGenericClass(final Field field) {
final ParameterizedType collectionType = (ParameterizedType) field.getGenericType();
return (Class>) collectionType.getActualTypeArguments()[0];
}
private boolean isSimpleType(final Class> fieldType) {
return fieldType.isPrimitive()
|| fieldType.isEnum()
|| String.class.isAssignableFrom(fieldType)
|| Date.class.isAssignableFrom(fieldType);
}
private boolean isSimplePrimitiveWrapperType(final Class> fieldType) {
return Integer.class.isAssignableFrom(fieldType)
|| Boolean.class.isAssignableFrom(fieldType)
|| Character.class.isAssignableFrom(fieldType)
|| Long.class.isAssignableFrom(fieldType)
|| Short.class.isAssignableFrom(fieldType)
|| Double.class.isAssignableFrom(fieldType)
|| Float.class.isAssignableFrom(fieldType)
|| Byte.class.isAssignableFrom(fieldType);
}
谢谢，如果有更简单的方法来填充所有内容，请告诉我。
