如何解析Java中的JSON数组? [英] How do I parse a JSON array in Java?

问题描述

我有以下JSON文本，并希望获取值"detest"和"dislike".

I have the following JSON text and would like to get the values "detest" and "dislike".

{
  "noun": {
    "syn": [
      "hatred",
      "emotion"
    ],
    "ant": [
      "love"
    ]
  },
  "verb": {
    "syn": [
      "detest",
      "dislike"
    ],
    "ant": [
      "love"
    ]
  }
}

我尝试使用org.json库将其解析为以下内容:

I've tried parsing it using the org.json library with the following:

JSONArray obj = new JSONObject(String);
JSONArray arr = obj.getJSONArray("syn");

但是我似乎无法以这种方式访问​​数组. 任何帮助，我们将不胜感激.

But I can't seem to access the array this way. Any help is greatly appreciated.

推荐答案

以下内容与 JSON.simple 库.

您需要一个JSONParser实例才能从String对象中获取一个JSONObject值.

You need a JSONParser instance to get a JSONObject value from your String object.

JSONObject data;
try {
    JSONParser helper = new JSONParser();
    data = (JSONObject)helper.parse(String);
} catch (ParseException parse) {
    // Invalid syntax
    return;
}
// Note that these may throw several exceptions
JSONObject node = (JSONObject)data.get("verb");
JSONArray array = (JSONArray)node.get("syn");

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