java - 在java中解析JSON响应(包括列表)

Question

我做了一个 http 客户端，并且收到了响应。我正在使用 JSONObject 来解析数据，当我执行下面的代码时，它会很好地打印出所有 JSON

HttpResponse response = httpclient.execute(httppost);
        HttpEntity entity = response.getEntity();
        if(entity!=null){
            try(InputStream instream = entity.getContent()) {
                String responseString = readInputStream(instream);
                JSONObject job = new JSONObject(responseString);
                statusLabel.setText("Command Result: " + job.toString());

这是 readInputSream 函数:

static private String readInputStream(InputStream inputStream) throws IOException {
    BufferedReader reader = new BufferedReader(new InputStreamReader(
            inputStream, "UTF-8"));
    String tmp;
    StringBuilder sb = new StringBuilder();
    while ((tmp = reader.readLine()) != null) {
        sb.append(tmp).append("\n");
    }
    if (sb.length() > 0 && sb.charAt(sb.length() - 1) == '\n') {
        sb.setLength(sb.length() - 1);
    }
    reader.close();
    return sb.toString();
}

如果我将其从 job.toString() 更改为:

statusLabel.setText("Command Result: " + job.get("result"));

它打印出正确的 1，它一直工作到 my_list。我不确定如何解析该列表。我在下面放了一个回复的片段。我尝试过“my_list”、“my_list[]”、my_list[0]”，但没有任何效果。我得到 JSONObject“blank” not find

{"result":1,  "ver":1,"total":2,"catch":true,"my_list":[{"id":3,"mid":0,"format":3,"user":4,"property":1,"type":0,"title":"hello","start":146,"end":1464,"hid":3,"bid":1,"reason":1,"time":0,"creator":"1","hello":0,"my":0,"year":"0","ggg":614,"name":"","ch":"0","attr":0,"type":1,"vtype":1,"tm_log": {"fr":4,"action":0,"vr":"82","started":1,"av_ended":2,"tr":1}}

Answer 1

您尝试检索的元素被解析为 JSONArray，而不是 JSONObject。尝试:

JSONArray my_list = job.getJSONArray("my_list");