从Java字符串中提取值

Question

I have Java string('s) in the format below:

String s = "[
    "samsung",

    ["samsung galaxy s9 case","samsung galaxy s8 case","samsung galaxy s9 plus case","samsung galaxy s8 charger"],

    [{"nodes":[{"name":"Cell Phones & Accessories","alias":"mobile"}]},{},{},{},{},{},{},{},{},{}],

    [],

    "1XQ3CN8WM8VSE"
]"

What's the best way to process the String so I can get these values (of 2nd item enclosed with [])

"samsung galaxy s9 case","samsung galaxy s8 case","samsung galaxy s9 plus case","samsung galaxy s8 charger"

inside a List<String> ?

Update

The String is valid JSON and tested with the code

public static boolean isJSONValid(String test) {
        try {
            new JSONObject(test);
        } catch (JSONException ex) {
            // edited, to include @Arthur's comment
            // e.g. in case JSONArray is valid as well...
            try {
                new JSONArray(test);
            } catch (JSONException ex1) {
                return false;
            }
        }
        return true;
    }

I also tried to parse it as JSON (as suggested) but I get exception provided.

JSONObject obj = new JSONObject(s);

Exception in thread "main" org.json.JSONException: A JSONObject text must begin with '{' at 1 [character 2 line 1] .

My String always starts with [..]

Answer 1

That format is not a valid json that´s why you are getting that error, one simple way to get the String you want is using an split method and then storage it in the your prefer collections.

public static void main(String args[]){
    String s = "[samsung,[\"samsung galaxy s9 case\",\"samsung galaxy s8 case\",\"samsung galaxy s9 plus case\",\"samsung galaxy s8 charger\"],[{\"nodes\":[{\"name\":\"Cell Phones & Accessories\",\"alias\":\"mobile\"}]},{},{},{},{},{},{},{},{},{}],[],\"1XQ3CN8WM8VSE\"]";

    String[] splitedFullString = s.split(",\\[");
    String sequence = splitedFullString[1];
    sequence = sequence.replaceAll("]", "");
    sequence = sequence.replaceAll("\"", "");
    String[] splitSequence = sequence.split(",");

    List<String> list = new ArrayList<>(); 
    for(String item : splitSequence){
        list.add(item);
    }
    for(String item : list){
        System.out.println(item);
    }
}

Answer 2

I write the code with the help of the answer of Andreas,

    JSONArray obj = new JSONArray(s);

    String str = obj.get(1).toString();
    String[] arr = str.substring(1, str.length()-1).split(",");

This works fine now. Thank you.