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

JSONObject.optQuery介绍

[英]Queries and returns a value from this object using jsonPointer, or returns null if the query fails due to a missing key.
[中]使用jsonPointer查询并返回此对象中的值，如果由于缺少键而导致查询失败，则返回null。

代码示例

代码示例来源：origin: loklak/loklak_server

/**
 * Queries and returns a value from this object using {@code jsonPointer}, or
 * returns null if the query fails due to a missing key.
 * 
 * @param jsonPointer the string representation of the JSON pointer
 * @return the queried value or {@code null}
 * @throws IllegalArgumentException if {@code jsonPointer} has invalid syntax
 */
public Object optQuery(String jsonPointer) {
  return optQuery(new JSONPointer(jsonPointer));
}

代码示例来源：origin: b3log/latke

/**
 * Queries and returns a value from this object using {@code jsonPointer}, or
 * returns null if the query fails due to a missing key.
 * 
 * @param jsonPointer the string representation of the JSON pointer
 * @return the queried value or {@code null}
 * @throws IllegalArgumentException if {@code jsonPointer} has invalid syntax
 */
public Object optQuery(String jsonPointer) {
  return optQuery(new JSONPointer(jsonPointer));
}

代码示例来源：origin: org.b3log/latke

/**
 * Queries and returns a value from this object using {@code jsonPointer}, or
 * returns null if the query fails due to a missing key.
 * 
 * @param jsonPointer the string representation of the JSON pointer
 * @return the queried value or {@code null}
 * @throws IllegalArgumentException if {@code jsonPointer} has invalid syntax
 */
public Object optQuery(String jsonPointer) {
  return optQuery(new JSONPointer(jsonPointer));
}