parseJSONArray()

本参考资料用于Processing 3.0+。 如果你使用的是前一版本,请在使用软件帮助菜单内的参考资料。. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

名称

parseJSONArray()

示例
 String data = "[ \"Capra hircus\", \"Panthera pardus\", \"Equus zebra\" ]";



void setup()
{  
JSONArray json = parseJSONArray(data);


if (json == null)
{
println("JSONArray could not be parsed");


  } else{
String species = json.getString(1);


println(species);


   }
  }  // Sketch prints: // Panthera pardus 
描述 Takes a String, parses its contents, and returns a JSONArray. If the String does not contain JSONArray data or cannot be parsed, a null value is returned.

parseJSONArray() is most useful when pulling data dynamically, such as from third-party APIs. Normally, API results would be saved to a String, and then can be converted to a structured JSONArray using parseJSONArray(). Be sure to check if null is returned before performing operations on the new JSONArray in case the String content could not be parsed.

If your data already exists as a JSON file in the data folder, it is simpler to use loadJSONArray().

语法
parseJSONArray(input)
参数
input String: String to parse as a JSONArray
返回值 JSONArray
相关 JSONObject
loadJSONObject()
saveJSONObject()

Updated on October 2, 2018 05:02:07pm EDT

parseJSONArray()