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Java 解析JSON数组和对象_Java_Android - Fatal编程技术网

Java 解析JSON数组和对象

Java 解析JSON数组和对象,java,android,Java,Android,我想通过API检索足球运动员的名单,我已经正确地进行了Http处理程序和API调用。现在我有了这个JSON数组 我想解析它,以便只显示玩家的名字。如何解析JSON数组的第一位,使数组从[{name:Paul Pogba…please]开始 到目前为止,我的代码是: @Override protected Void doInBackground(Void... arg0) { //New instance of http http sh = new ht

我想通过API检索足球运动员的名单,我已经正确地进行了Http处理程序和API调用。现在我有了这个JSON数组

我想解析它,以便只显示玩家的名字。如何解析JSON数组的第一位,使数组从[{name:Paul Pogba…please]开始

到目前为止,我的代码是:

@Override
    protected Void doInBackground(Void... arg0) {
        //New instance of http
        http sh = new http();

        // Making a request to URL and getting response
        final String jsonStr = sh.makeServiceCall(url);

        Log.e(TAG, "Response from: " + jsonStr);

        if (jsonStr != null) {
            try {
                // Getting JSON Array node
                JSONArray jsonarray = new JSONArray(jsonStr);


                for (int i = 0; i < jsonarray.length(); i++) {
                    JSONObject jo = jsonarray.getJSONObject(i);

                    String name = jo.getString("name");

                    HashMap<String, String> player = new HashMap<>();

                    player.put("name", name);

                    playerlist.add(player);
                }
            } catch (final JSONException e) { //In case an error regarding JSON parsing takes place
                Log.e(TAG, "Json parsing error: " + e.getMessage());
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(getApplicationContext(),
                                "Json parsing error: " + e.getMessage(),
                                Toast.LENGTH_LONG)
                                .show();
                    }
                });

            }
        } else {
            Log.e(TAG, "Couldn't get json from server."); //In case the JSON can't be obtained from the server
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    Toast.makeText(getApplicationContext(),
                            "Couldn't get JSON from server. Check LogCat for possible errors!",
                            Toast.LENGTH_LONG)
                            .show();
                }
            });

        }

        return null;
    }
@覆盖
受保护的Void doInBackground(Void…arg0){
//http的新实例
http sh=新的http();
//向URL发出请求并获得响应
最终字符串jsonStr=sh.makeServiceCall(url);
Log.e(标签,“来自:+jsonStr的响应”);
if(jsonStr!=null){
试一试{
//获取JSON数组节点
JSONArray JSONArray=新JSONArray(jsonStr);
for(int i=0;i
感谢信息专家。用子字符串修复了它:)

感谢信息专家。用子字符串修复了它:)

发布您尝试的代码以及问题。尝试使用像gson或jackson这样的json解析器库。发布您尝试的代码以及问题。尝试使用像gson或json这样的json解析器库杰克逊。