本文整理了Java中com.atlassian.jira.util.json.JSONObject.optLong()方法的一些代码示例，展示了JSONObject.optLong()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.optLong()方法的具体详情如下：
包路径：com.atlassian.jira.util.json.JSONObject
类名称：JSONObject
方法名：optLong

JSONObject.optLong介绍

[英]Get an optional long value associated with a key, or zero if there is no such key or if the value is not a number. If the value is a string, an attempt will be made to evaluate it as a number.
[中]获取与键关联的可选长值，如果没有此类键或该值不是数字，则获取零。如果该值是字符串，将尝试将其作为数字计算。

代码示例

代码示例来源：origin: com.atlassian.jira/jira-api

/**
 * Get an optional long value associated with a key,
 * or zero if there is no such key or if the value is not a number.
 * If the value is a string, an attempt will be made to evaluate it as
 * a number.
 *
 * @param key A key string.
 * @return An object which is the value.
 */
public long optLong(final String key)
{
  return optLong(key, 0);
}

代码示例来源：origin: com.atlassian.jira.plugins/jira-dvcs-connector-api

protected final Date parseDate(JSONObject json, String dateElement, int version) throws ParseException {
  Date date = null;
  if (version == 0) {
    // for payload format version 0 the date format is serialized as formatted string
    String dateStringOrNull = json.optString(dateElement);
    if (StringUtils.isNotBlank(dateStringOrNull)) {
      date = getDateFormat().parse(dateStringOrNull);
    }
  } else if (version > 0) {
    // for payload format version 1 and higher date format is serialized as long
    date = new Date(json.optLong(dateElement));
  }
  return date;
}