Question

我想知道为什么我不能像这样阅读JSON对象：

{
    "1":{"bulan":"Januari","tahun":"2012","tagihan":"205000","status":"Lunas"},
    "2":{"bulan":"Februari","tahun":"2012","tagihan":"180000","status":"Lunas"},
    "3":{"bulan":"Maret","tahun":"2012","tagihan":"120000","status":"Lunas"},
    "4":{"bulan":"April","tahun":"2012","tagihan":"230000","status":"Lunas"},
    "5":{"bulan":"Mei","tahun":"2012","tagihan":"160000","status":"Lunas"},
    "6":{"bulan":"Juni","tahun":"2012","tagihan":"150000","status":"Belum Lunas"},
    "panjang":6
}

我的安卓代码如下：

    try {
        int length = jobj.getInt("panjang");

        for(int n = 0; n < length; n++){

            String m = Integer.toString(n)
            JSONObject row = jobj.getJSONObject(m);

            String bulan = row.getString("bulan");
            String tahun = row.getString("tahun");
            String tagihan = row.getString("tagihan");
            String status = row.getString("status");

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

            map.put("bulan", bulan);
            map.put("tahun", tahun);
            map.put("tagihan", tagihan);
            map.put("status", status);

            list.add(map);
        }
    } catch (JSONException e) {
        e.printStackTrace();
    }

它始终没有返回任何内容，但如果我将密钥m更改为特定密钥（如

），则它可以正常工作

String m = "1";

我无法使用

JSONObject row = jobj.getJSONObject(n);

因为getJSONObject（）只接受字符串，而不是int。我的代码有问题吗？

Answer 1

您的问题在于初始迭代器值。它无法搜索键“0”，因为您没有“0”。将其更改为：

for(int n = 1; n <= length; n++){

应该解决问题。

JSON无法读取，键读取失败可能

1 个答案: