Java JsonObject类代码示例

import com.restfb.json.JsonObject; //导入依赖的package包/类
void fetchObjectsAsJsonObject() {
  out.println("* Fetching multiple objects at once as a JsonObject *");

  List<String> ids = new ArrayList<String>();
  ids.add("4");
  ids.add("http://www.imdb.com/title/tt0117500/");

  // Make the API call
  JsonObject results = facebookClient25.fetchObjects(ids, JsonObject.class);

  System.out.println(results.toString());

  // Pull out JSON data by key and map each type by hand.
  JsonMapper jsonMapper = new DefaultJsonMapper();
  User user = jsonMapper.toJavaObject(results.getString("4","{}"), User.class);
  Url url = jsonMapper.toJavaObject(results.get("http://www.imdb.com/title/tt0117500/").toString(), Url.class);

  out.println("User is " + user);
  out.println("URL is " + url);
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
@GET
@Path("/reader")
@Produces(MediaType.APPLICATION_JSON)
public String reader(@Context HttpServletRequest req, @QueryParam("showUnreadOnly") boolean unreadOnly,
        @QueryParam("sortByAlphabet") int sortAz, @QueryParam("sortByUnread") int sortUnread) {
    long userId = Session.getUserId(req.getSession());
    long profileId = Session.getProfileId(req.getSession());
    if (userId == 0 || profileId == 0) {
        return JSONErrorMsgs.getAccessDenied();
    }

    JsonObject obj = new JsonObject();
    obj.put(JSONFields.BOOL_SHOW_UNREAD_ONLY, unreadOnly);
    obj.put(JSONFields.INT_SORT_AZ, sortAz);
    obj.put(JSONFields.INT_SORT_UNREAD, sortUnread);

    return JSONUtils.count(UserKeyValuesTable.save(userId, profileId, UserKeyValuesTable.READER_SETTINGS_KEY, obj));
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
@Override
public boolean onResponse(String response)
{
    JsonObject o = new JsonObject(response);

    try
    {
        email = o.getString("email");
        name = o.getString("name");
        locale = o.getString("locale");
    } 
    catch (Exception e) {
        return false;
    }         
    
    return true;
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
@Override
public boolean onResponse(String response)
{
    JsonObject o = new JsonObject(response);

    name = "Live-Account";
    email = "";
    locale = "en_US";

    try
    {
        email = o.getJsonObject("emails").getString("preferred");
        name = o.getString("name");
        locale = o.getString("locale");
    } 
    catch (Exception e) {
        return false;
    }
    
    return true;
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
public static int save(long userId, long profileId, int key, JsonObject obj) {
    try (Connection conn = Database.getConnection()){
        String query = String.format("UPDATE %s SET %s = '%s' WHERE %s = %d AND %s = %d AND %s = %d", TABLE,
                DBFields.STR_KEY_VALUE, SQLUtils.asSafeString(obj.toString()), DBFields.LONG_PROFILE_ID, profileId,
                DBFields.LONG_USER_ID, userId, DBFields.INT_KEY_NAME, key);
        if (conn.createStatement().executeUpdate(query) == 0) {
            query = String.format("INSERT INTO %s (%s, %s, %s, %s) VALUES (%d, %d, %d, '%s')", TABLE,
                    DBFields.LONG_USER_ID, DBFields.LONG_PROFILE_ID, DBFields.INT_KEY_NAME, DBFields.STR_KEY_VALUE,
                    userId, profileId, key, SQLUtils.asSafeString(obj.toString()));
            conn.createStatement().execute(query);
        }

        return 1;
    } catch (SQLException ex) {
        logger.error("save {}/{}/{} failed {}", ex, userId, profileId, key, ex.getMessage());
    }

    return -1;
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
/**
 * @param retDefault
 */
public static JsonObject get(long userId, long profileId, int key, boolean retDefault) {
    JsonObject o = get(userId, profileId, key);

    if (o.length() == 0) {
        switch (key) {
        case READER_SETTINGS_KEY:
            return defaultReader;

        case VIEW_ALL_SETTINGS:
        case VIEW_SAVED_SETTINGS:
        case VIEW_RECENTLY_READ_SETTINGS:
            return defaultGenericSettings;
        }
    }

    return o;
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
/**
 * Return list of friends based on list of given ids
 *
 * @param idsOfFriendsToDisplay of friends, which we want to obtain from facebook
 * @return list of friends
 */
public List<FacebookUserBean> getFriends(final List<String> idsOfFriendsToDisplay) throws IOException, PortletException {
    List<FacebookUserBean> fbFriends = new ArrayList<FacebookUserBean>();

    // Render friends with their pictures
    if (idsOfFriendsToDisplay.size() > 0) {
        // Fetch all required friends with obtained ids
        JsonObject friendsResult = this.fetchObjects(idsOfFriendsToDisplay, JsonObject.class,
            Parameter.with("fields", "id,name,picture"));

        if (friendsResult == null) {
            return fbFriends;
        }

        for (String id : idsOfFriendsToDisplay) {
            JsonObject current = friendsResult.getJsonObject(id);
            UserWithPicture friend = facebookClient.getJsonMapper().toJavaObject(current.toString(), UserWithPicture.class);
            fbFriends.add(new FacebookUserBean(friend));
        }
    }

    return fbFriends;
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
private static int findMaxMovieIndex(final JsonArray array, int start) {
    double maxValue = 0;
    int result = start;

    for (int i = start; i < array.length(); ++i) {
        final JsonObject current = array.getJsonObject(i);
        final JsonObject values = current.getJsonObject("value");
        double imdbRating = 0;
        double friendRating = 0;
        try {
            friendRating = Double.parseDouble(values.getString("friendRating"));
            imdbRating = Double.parseDouble(values.getString("rating"));
        } catch (Exception e) {
        }
        final double rating = imdbRating + friendRating;
        if (rating > maxValue) {
            maxValue = rating;
            result = i;
        }
    }

    return result;
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
void fetchObjectsAsJsonObject() {
  out.println("* Fetching multiple objects at once as a JsonObject *");

  List<String> ids = new ArrayList<String>();
  ids.add("btaylor");
  ids.add("http://www.imdb.com/title/tt0117500/");

  // Make the API call
  JsonObject results = facebookClient.fetchObjects(ids, JsonObject.class);

  // Pull out JSON data by key and map each type by hand.
  JsonMapper jsonMapper = new DefaultJsonMapper();
  User user = jsonMapper.toJavaObject(results.getString("btaylor"), User.class);
  Url url = jsonMapper.toJavaObject(results.getString("http://www.imdb.com/title/tt0117500/"), Url.class);

  out.println("User is " + user);
  out.println("URL is " + url);
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
void fetchDifferentDataTypesAsJsonObject() {
  out.println("* Fetching different types of data as JsonObject *");

  JsonObject btaylor = facebookClient.fetchObject("btaylor", JsonObject.class);
  out.println(btaylor.getString("name"));

  JsonObject photosConnection = facebookClient.fetchObject("me/photos", JsonObject.class);
  JsonArray photosConnectionData = photosConnection.getJsonArray("data");

  if (photosConnectionData.length() > 0) {
    String firstPhotoUrl = photosConnectionData.getJsonObject(0).getString("source");
    out.println(firstPhotoUrl);
  }

  String query = "SELECT uid, name FROM user WHERE uid=220439 or uid=7901103";
  List<JsonObject> queryResults = facebookClient.executeQuery(query, JsonObject.class);

  if (queryResults.size() > 0)
    out.println(queryResults.get(0).getString("name"));
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
/**
 * Given a map of query names to queries, verify that it contains valid data and convert it to a JSON object string.
 * 
 * @param queries
 *          The query map to convert.
 * @return The {@code queries} in JSON string format.
 * @throws IllegalArgumentException
 *           If the provided {@code queries} are invalid.
 */
protected String queriesToJson(Map<String, String> queries) {
  verifyParameterPresence("queries", queries);

  if (queries.keySet().size() == 0)
    throw new IllegalArgumentException("You must specify at least one query.");

  JsonObject jsonObject = new JsonObject();

  for (Entry<String, String> entry : queries.entrySet()) {
    if (isBlank(entry.getKey()) || isBlank(entry.getValue()))
      throw new IllegalArgumentException("Provided queries must have non-blank keys and values. " + "You provided: "
          + queries);

    try {
      jsonObject.put(trimToEmpty(entry.getKey()), trimToEmpty(entry.getValue()));
    } catch (JsonException e) {
      // Shouldn't happen unless bizarre input is provided
      throw new IllegalArgumentException("Unable to convert " + queries + " to JSON.", e);
    }
  }

  return jsonObject.toString();
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
static List<String> getScopes() {
    
    ArrayList<String> scopes = new ArrayList();
    
    JsonObject permResponse = facebookClient.fetchObject("me/permissions", JsonObject.class);
    JsonArray permsArray = permResponse.getJsonArray("data");
    for (int i = 0; i < permsArray.length(); i++) {
        
        JsonObject perm = permsArray.getJsonObject(i);
        if(perm.getString("status").equals("granted")){
            scopes.add(perm.getString("permission"));
        }
    }
    
    return scopes;
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
void fetchDifferentDataTypesAsJsonObject() {
  out.println("* Fetching different types of data as JsonObject *");

  JsonObject zuck = facebookClient25.fetchObject("4", JsonObject.class);
  out.println(zuck.get("name").toString());

  JsonObject photosConnection = facebookClient25.fetchObject("me/photos", JsonObject.class);
  JsonArray photosConnectionData = photosConnection.get("data").asArray();

  if (photosConnectionData.size() > 0) {
    String firstPhotoUrl = photosConnectionData.get(0).asObject().getString("source",null);
    out.println(firstPhotoUrl);
  }
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
@GET
@Path("/modules")
@Produces(MediaType.APPLICATION_JSON)
public String modules(@Context HttpServletRequest req, @QueryParam("tmpl") String tmpl,
        @QueryParam("v") int viewMode) {
    long userId = Session.getUserId(req.getSession());
    long profileId = Session.getProfileId(req.getSession());
    if (userId == 0 || profileId == 0) {
        return JSONErrorMsgs.getAccessDenied();
    }

    int k = -1;
    switch (tmpl) {
    case "saved":
        k = UserKeyValuesTable.VIEW_SAVED_SETTINGS;
        break;

    case "all":
        k = UserKeyValuesTable.VIEW_ALL_SETTINGS;
        break;

    case "rr":
        k = UserKeyValuesTable.VIEW_RECENTLY_READ_SETTINGS;
        break;

    default:
        return JSONErrorMsgs.getErrorParams();
    }

    JsonObject obj = new JsonObject();
    obj.put(JSONFields.INT_VIEW_MODE, viewMode);

    return JSONUtils.count(UserKeyValuesTable.save(userId, profileId, k, obj));
}
 

import com.restfb.json.JsonObject; //导入依赖的package包/类
@Override
public boolean onResponse(String response) {
    JsonObject o = new JsonObject(response);

    try {
        email = o.getString("email");
        name = o.getString("name");
        locale = o.getString("locale");
    } catch (Exception e) {
        return false;
    }

    return true;
}