这等效于Java 8流API中的代码。不是100％等效，但是您可以了解主要思想。
private static final String COMMITS_IN_PATCH_IDENTIFIER = "patchInformation_svnRevisionpublic"; //key used to identify the commits in a patch from JSON response received from PMTprivate static final String KEY_STRING = "name";private static final String VALUE_STRING = "value";public List<String> getCommitIds (JSonArray array) { return arrayToStream(array) .map(JSONObject.class::cast) .filter(o -> o.get(KEY_STRING).equals(COMMITS_IN_PATCH_IDENTIFIER)) .findFirst() .map(o -> (JSONArray) o.get(VALUE_STRING)) .map(Main::arrayToStream) .map(commits -> commits.map(Object::toString) .map(String::trim) .collect(Collectors.toList()) ) .orElseGet(Collections::emptyList);}@Nonnullprivate static Stream<Object> arrayToStream(JSonArray array) { return StreamSupport.stream(array.spliterator(), false);}
