org.json.JSONObject.optString()方法的使用及代码示例
本文整理了Java中org.json.JSONObject.optString()方法的一些代码示例，展示了JSONObject.optString()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。JSONObject.optString()方法的具体详情如下：
包路径：org.json.JSONObject
类名称：JSONObject
方法名：optString
JSONObject.optString介绍
[英]Returns the value mapped by name if it exists, coercing it if necessary. Returns the empty string if no such mapping exists.
[中]返回按名称映射的值（如果存在），必要时强制该值。如果不存在此类映射，则返回空字符串。
代码示例
代码示例来源：origin: facebook/facebook-android-sdk
private AppEvent(
String jsonString,
boolean isImplicit,
String checksum) throws JSONException {
jsonObject = new JSONObject(jsonString);
this.isImplicit = isImplicit;
this.name = jsonObject.optString(Constants.EVENT_NAME_EVENT_KEY);
this.checksum = checksum;
}代码示例来源：origin: facebook/facebook-android-sdk
public ParameterComponent(final JSONObject component) throws JSONException {
name = component.getString(PARAMETER_NAME_KEY);
value = component.optString(PARAMETER_VALUE_KEY);
ArrayList<PathComponent> pathComponents = new ArrayList<>();
JSONArray jsonPathArray = component.optJSONArray(PARAMETER_PATH_KEY);
if (null != jsonPathArray) {
for (int i = 0; i < jsonPathArray.length(); i++) {
PathComponent pathComponent = new PathComponent((jsonPathArray.getJSONObject(i)));
pathComponents.add(pathComponent);
}
}
path = pathComponents;
pathType = component.optString(Constants.EVENT_MAPPING_PATH_TYPE_KEY,
Constants.PATH_TYPE_ABSOLUTE);
}
}代码示例来源：origin: facebook/facebook-android-sdk
public List<AppLink> getAppLinks() {
List<AppLink> appLinks = new ArrayList<>();
JSONObject appLinkJson = jsonData.optJSONObject(APP_LINKS);
if (appLinkJson != null) {
JSONArray appArray = appLinkJson.optJSONArray("android");
if (appArray != null) {
int length = appArray.length();
for (int i = 0; i < length; i++) {
JSONObject linkJson = appArray.optJSONObject(i);
if (linkJson != null) {
String appName = linkJson.optString("app_name");
Intent intent = new Intent(Intent.ACTION_VIEW);
String packageName = linkJson.optString("package");
String className = linkJson.optString("class");
if (!TextUtils.isEmpty(packageName) && !TextUtils.isEmpty(className)) {
intent.setClassName(packageName, className);
}
String url = linkJson.optString("url");
if (url != null) {
intent.setData(Uri.parse(url));
}
appLinks.add(new AppLink(appName, intent));
}
}
}
}
return appLinks;
}代码示例来源：origin: facebook/facebook-android-sdk
ActionType type = ActionType.valueOf(mapping.getString("event_type").toUpperCase(Locale.ENGLISH));
String appVersion = mapping.getString("app_version");
JSONArray jsonPathArray = mapping.getJSONArray("path");
List<PathComponent> path = new ArrayList<>();
for (int i = 0; i < jsonPathArray.length(); i++) {
JSONObject jsonPath = jsonPathArray.getJSONObject(i);
PathComponent component = new PathComponent(jsonPath);
path.add(component);
String pathType = mapping.optString(Constants.EVENT_MAPPING_PATH_TYPE_KEY,
Constants.PATH_TYPE_ABSOLUTE);
JSONArray jsonParameterArray = mapping.optJSONArray("parameters");
List<ParameterComponent> parameters = new ArrayList<>();
if (null != jsonParameterArray) {
for (int i = 0; i < jsonParameterArray.length(); i++) {
JSONObject jsonParameter = jsonParameterArray.getJSONObject(i);
ParameterComponent component = new ParameterComponent(jsonParameter);
parameters.add(component);
String componentId = mapping.optString("component_id");
String activityName = mapping.optString("activity_name");代码示例来源：origin: facebook/facebook-android-sdk
public static PermissionsPair handlePermissionResponse(JSONObject result)
throws JSONException {
JSONObject permissions = result.getJSONObject("permissions");
JSONArray data = permissions.getJSONArray("data");
List<String> grantedPermissions = new ArrayList<>(data.length());
List<String> declinedPermissions = new ArrayList<>(data.length());
for (int i = 0; i < data.length(); ++i) {
JSONObject object = data.optJSONObject(i);
String permission = object.optString("permission");
if (permission == null || permission.equals("installed")) {
continue;
}
String status = object.optString("status");
if (status == null) {
continue;
}
if (status.equals("granted")) {
grantedPermissions.add(permission);
} else if (status.equals("declined")) {
declinedPermissions.add(permission);
}
}
return new PermissionsPair(grantedPermissions, declinedPermissions);
}代码示例来源：origin: org.apache.shindig/shindig-gadgets
@Test
public void parseRssNoSummaries() throws Exception {
JSONObject feed = processor.process(URL_RSS, DATA_RSS, false, 1);
feed.getJSONArray("Entry");
JSONObject entry = feed.getJSONArray("Entry").getJSONObject(0);
assertNull("Summary should not be returned when getSummaries is false",
entry.optString("Summary", null));
}代码示例来源：origin: yanzhenjie/NoHttp
/**
* From the json format String parsing out the {@code Map<String, List<String>>} data.
*
* @param jsonString json string.
* @throws JSONException thrown it when format error.
*/
public void setJSONString(String jsonString) throws JSONException {
clear();
JSONObject jsonObject = new JSONObject(jsonString);
Iterator<String> keySet = jsonObject.keys();
while (keySet.hasNext()) {
String key = keySet.next();
String value = jsonObject.optString(key);
JSONArray values = new JSONArray(value);
for (int i = 0; i < values.length(); i++)
add(key, values.optString(i));
}
}代码示例来源：origin: ankidroid/Anki-Android
private <T> T _dataOnly(JSONObject resp, Class<T> returnType) throws MediaSyncException {
try {
if (!TextUtils.isEmpty(resp.optString("err"))) {
String err = resp.getString("err");
mCol.log("error returned: " + err);
return (T) resp.getJSONObject("data");
} else if (returnType == JSONArray.class) {
return (T) resp.getJSONArray("data");代码示例来源：origin: Netflix/EVCache
final JSONObject jsonObj = new JSONObject(js);
final JSONObject application = jsonObj.getJSONObject("application");
final JSONArray instances = application.getJSONArray("instance");
final Map<ServerGroup, EVCacheServerGroupConfig> serverGroupMap = new HashMap<ServerGroup, EVCacheServerGroupConfig>();
final ChainedDynamicProperty.BooleanProperty useBatchPort = EVCacheConfig.getInstance().getChainedBooleanProperty(appName + ".use.batch.port", "evcache.use.batch.port", Boolean.FALSE, null);
for(int i = 0; i < instances.length(); i++) {
final JSONObject instanceObj = instances.getJSONObject(i);
final JSONObject metadataObj = instanceObj.getJSONObject("dataCenterInfo").getJSONObject("metadata");
final String localIp = metadataObj.getString("local-ipv4");
final JSONObject instanceMetadataObj = instanceObj.getJSONObject("metadata");
final String evcachePortString = instanceMetadataObj.optString("evcache.port", "11211");
final String rendPortString = instanceMetadataObj.optString("rend.port", "0");
final String rendBatchPortString = instanceMetadataObj.optString("rend.batch.port", "0");
final int rendPort = Integer.parseInt(rendPortString);
final int rendBatchPort = Integer.parseInt(rendBatchPortString);
final String rendMemcachedPortString = instanceMetadataObj.optString("rend.memcached.port", "0");
final String rendMementoPortString = instanceMetadataObj.optString("rend.memento.port", "0");
final int evcachePort = Integer.parseInt(evcachePortString);
final int port = rendPort == 0 ? evcachePort : ((useBatchPort.get().booleanValue()) ? rendBatchPort : rendPort);代码示例来源：origin: jeasonlzy/NineGridView
@Override
public T parseNetworkResponse(Response response) {
try {
String responseData = response.body().string();
if (TextUtils.isEmpty(responseData)) return null;
JSONObject jsonObject = new JSONObject(responseData);
String data = jsonObject.optString("data", "");
if (clazz == String.class) return (T) data;
if (clazz != null) return new Gson().fromJson(data, clazz);
if (type != null) return new Gson().fromJson(data, type);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}代码示例来源：origin: jeremylong/DependencyCheck
final Advisory advisory = new Advisory();
advisory.setId(object.getInt("id"));
advisory.setOverview(object.optString("overview", null));
advisory.setReferences(object.optString("references", null));
advisory.setCreated(object.optString("created", null));
advisory.setUpdated(object.optString("updated", null));
advisory.setRecommendation(object.optString("recommendation", null));
advisory.setTitle(object.optString("title", null));
advisory.setModuleName(object.optString("module_name", null));
advisory.setVulnerableVersions(object.optString("vulnerable_versions", null));
advisory.setPatchedVersions(object.optString("patched_versions", null));
advisory.setAccess(object.optString("access", null));
advisory.setSeverity(object.optString("severity", null));
advisory.setCwe(object.optString("cwe", null));
for (int i = 0; i < findings.length(); i++) {
final JSONObject finding = findings.getJSONObject(i);
final String version = finding.optString("version", null);
final JSONArray paths = finding.optJSONArray("paths");
for (int j = 0; j < paths.length(); j++) {
final String path = paths.getString(j);
if (path != null && path.equals(advisory.getModuleName())) {
final List<String> stringCves = new ArrayList<>();
if (jsonCves != null) {
for (int j = 0; j < jsonCves.length(); j++) {
stringCves.add(jsonCves.getString(j));代码示例来源：origin: facebook/facebook-android-sdk
public static List<String> getCategories(Place place) {
JSONObject jsonData = place.getJson();
List<String> categories = new ArrayList<>();
JSONArray jsonCategories = jsonData.optJSONArray(Place.CATEGORY_LIST);
if (jsonCategories != null) {
int length = jsonCategories.length();
for (int i=0; i<length; i++) {
JSONObject jsonCategory = jsonCategories.optJSONObject(i);
if (jsonCategory != null) {
String category = jsonCategory.optString("name");
categories.add(category);
}
}
}
return categories;
}代码示例来源：origin: parse-community/Parse-SDK-Android
String opString = jsonObject.optString("__op", null);
if (opString != null) {
try {
String typeString = jsonObject.optString("__type", null);
if (typeString == null) {
return convertJSONObjectToMap(jsonObject);
String iso = jsonObject.optString("iso");
return ParseDateFormat.getInstance().parse(iso);
String base64 = jsonObject.optString("base64");
return Base64.decode(base64, Base64.NO_WRAP);
return decodePointer(jsonObject.optString("className"),
jsonObject.optString("objectId"));
List<ParseGeoPoint> coordinates = new ArrayList<>();
try {
JSONArray array = jsonObject.getJSONArray("coordinates");
for (int i = 0; i < array.length(); ++i) {
JSONArray point = array.getJSONArray(i);
coordinates.add(new ParseGeoPoint(point.getDouble(0), point.getDouble(1)));代码示例来源：origin: org.wso2.org.apache.shindig/shindig-gadgets
@Test
public void parseAtomNoSummaries() throws Exception {
JSONObject feed = processor.process(URL_ATOM, DATA_ATOM, false, 1);
feed.getJSONArray("Entry");
JSONObject entry = feed.getJSONArray("Entry").getJSONObject(0);
assertNull("Summary should not be returned when getSummaries is false",
entry.optString("Summary", null));
}代码示例来源：origin: DV8FromTheWorld/JDA
channel = null;
final String groupName = channelObject.optString("name");
final long groupId = channelObject.getLong("id");
final String groupIconId = channelObject.optString("icon", null);
final String guildIconId = guildObject.optString("icon", null);
final long guildId = guildObject.getLong("id");
final String guildName = guildObject.getString("name");
final String guildSplashId = guildObject.optString("splash", null);
final VerificationLevel guildVerificationLevel = VerificationLevel.fromKey(Helpers.optInt(guildObject, "verification_level", -1));
final int presenceCount = Helpers.optInt(object, "approximate_presence_count", -1);
guildFeatures = Collections.emptySet();
else
guildFeatures = Collections.unmodifiableSet(StreamSupport.stream(guildObject.getJSONArray("features").spliterator(), false).map(String::valueOf).collect(Collectors.toSet()));代码示例来源：origin: ankidroid/Anki-Android
/** Update the list of card templates for current note type */
private void updateCards(JSONObject model) {
Timber.d("updateCards()");
try {
JSONArray tmpls = model.getJSONArray("tmpls");
String cardsList = "";
// Build comma separated list of card names
Timber.d("updateCards() template count is %s", tmpls.length());
for (int i = 0; i < tmpls.length(); i++) {
String name = tmpls.getJSONObject(i).optString("name");
// If more than one card then make currently selected card underlined
if (!mAddNote && tmpls.length() > 1 && model == mEditorNote.model() &&
mCurrentEditedCard.template().optString("name").equals(name)) {
name = "<u>" + name + "</u>";
}
cardsList += name;
if (i < tmpls.length()-1) {
cardsList += ", ";
}
}
// Make cards list red if the number of cards is being reduced
if (!mAddNote && tmpls.length() < mEditorNote.model().getJSONArray("tmpls").length()) {
cardsList = "<font color='red'>" + cardsList + "</font>";
}
mCardsButton.setText(CompatHelper.getCompat().fromHtml(getResources().getString(R.string.CardEditorCards, cardsList)));
} catch (JSONException e) {
throw new RuntimeException(e);
}
}代码示例来源：origin: stackoverflow.com
// Note the null is the continueToken you may not get all of the purchased items
// in one call - check ownedItems.getString("INAPP_CONTINUATION_TOKEN") for
// the next continueToken and re-call with that until you don't get a token
Bundle ownedItems = service.getPurchases(3, getPackageName(), "inapp", null);
// Check response
int responseCode = ownedItems.getInt("RESPONSE_CODE");
if (responseCode != 0) {
throw new Exception("Error");
}
// Get the list of purchased items
ArrayList<String> purchaseDataList =
ownedItems.getStringArrayList("INAPP_PURCHASE_DATA_LIST");
for (String purchaseData : purchaseDataList) {
JSONObject o = new JSONObject(purchaseData);
String purchaseToken = o.optString("token", o.optString("purchaseToken"));
// Consume purchaseToken, handling any errors
mService.consumePurchase(3, getPackageName(), purchaseToken);
}代码示例来源：origin: facebook/facebook-android-sdk
JSONObject jsonResponse = response.getJSONObject();
assertNotNull(jsonResponse);
String albumId = jsonResponse.optString("id");
assertNotNull(albumId);
for (int i = 0; i < jsonList.length(); i++) {
JSONObject imageObject = jsonList.getJSONObject(i);
if (imageId.get().equals(imageObject.optString("id"))) {
found = true;代码示例来源：origin: facebook/facebook-android-sdk
for (int i = 0; i < permissionsArray.length(); i++) {
JSONObject permissionEntry = permissionsArray.optJSONObject(i);
if (permissionEntry == null) {
continue;
String permission = permissionEntry.optString("permission");
String status = permissionEntry.optString("status");
if (!Utility.isNullOrEmpty(permission) &&
!Utility.isNullOrEmpty(status)) {代码示例来源：origin: DV8FromTheWorld/JDA
public EmoteImpl createEmote(GuildImpl guildObj, JSONObject json, boolean fake)
{
JSONArray emoteRoles = json.isNull("roles") ? new JSONArray() : json.getJSONArray("roles");
final long emoteId = json.getLong("id");
final User user = json.isNull("user") ? null : createFakeUser(json.getJSONObject("user"), false);
EmoteImpl emoteObj = (EmoteImpl) guildObj.getEmoteById(emoteId);
if (emoteObj == null)
emoteObj = new EmoteImpl(emoteId, guildObj, fake);
Set<Role> roleSet = emoteObj.getRoleSet();
roleSet.clear();
for (int j = 0; j < emoteRoles.length(); j++)
{
Role role = guildObj.getRoleById(emoteRoles.getString(j));
if (role != null)
roleSet.add(role);
}
if (user != null)
emoteObj.setUser(user);
return emoteObj
.setName(json.optString("name"))
.setAnimated(json.optBoolean("animated"))
.setManaged(Helpers.optBoolean(json, "managed"));
}内容来源于网络，如有侵权，请联系作者删除！
