Question

我知道如何解析看起来像[{...}，{...}，{...}]的JSON。但这是我的例子，有些事情有点不同：

[{"type":"sometype","presentations":["/files/presentation/presentation.pdf"],"description":"somedescription"},{"type":"sometype","presentations":["/files/presentation/presentation2.pdf"],"description":"somedescription"}]

如何解析来自＆＃34;演示文稿的数据＆＃34;这里？我将其作为JSONArray获取，但无法获取值（使用带有该数组的.toString（）会返回该值，但使用＆＃34; \＆＃34;之前＆＃34; /＆＃34;（我的意思是＆＃34; / files / presentation ...＆＃34;），所以我无法将其添加到url以显示pdf。而且我不知道如何获取JSONObject从该数组（如果它存在，当然）。

Answer 1

String jsonString = "[{\"type\":\"sometype\",\"presentations\":[\"/files/presentation/presentation.pdf\"],\"description\":\"somedescription\"},{\"type\":\"sometype\",\"presentations\":[\"/files/presentation/presentation2.pdf\"],\"description\":\"somedescription\"}]";

try {
    JSONArray jaArray = new JSONArray(jsonString);
    JSONObject firstElement = jaArray.getJSONObject(0);
    JSONArray jaPresentations = firstElement.getJSONArray("presentations");
    String string = jaPresentations.getString(0);

    //or chain it together like so:
    String string2 = jaArray.getJSONObject(1).getJSONArray("presentations").getString(0);

    Log.v("TAG", string);
    Log.v("TAG", string2);

输出：

V/TAG﹕ /files/presentation/presentation.pdf
V/TAG﹕ /files/presentation/presentation2.pdf

android - 解析没有显式JSONObject的JSONArray

1 个答案: