android json响应键值，解析

Question

我从 Web 服务获得 JSON 响应:

{"CoverageSearchByLatLongResult":{"HasTransmissionAreasWithSignal":true,"SwitchOffArea": 
{"OpenForVastApplications":false,"SeperateTileSetUrl":"http:\/\/myswitch.merged.stage.orchard.net.au\/geodatafiles\/SwitchOffArea\/442b8844-3c05-4548-9424-
 4fdafc1f3c62\/Seperate","HASStatus":"Future","HASStatement":"<p>The Household Assistance Scheme is not yet available in this switchover area. Eligible households will be sent a letter when the scheme opens in the Sydney area.<\/p>","SwitchOffDate":"31 December 2013","Events":{"MaximumProximity":6.864859435168742,"Items":[{"Name":"Test Event","Time":"Time","Url":"","Date":"Date","Address":"19a Boundary Street, Rushcutter...

所以我的问题是，在 android java 中如何请求 key :CoverageSearchByLatLongResult

在 iphone 中的 ObjC 中，是这样的:

  NSDictionary *coverageResult = [response objectForKey:@"CoverageSearchByLatLongResult"];

所以基本上我是用一个键来解析一个字典，但是我需要把这个结果放在其他字典中，

[如果错误请指正，在 Java 字典中称为映射？]

如何做到这一点？

非常感谢!

Answer 1

您应该使用 org.json 包中的类:

http://developer.android.com/reference/org/json/package-summary.html

有了它们，您可以执行以下操作:

try {
    String jsonString = "YOUR JSON CONTENT";
    JSONObject obj = new JSONObject(jsonString);
    JSONObject anotherObj = obj.getJSONObject("CoverageSearchByLatLongResult");
    boolean bool = anotherObj.getBoolean("HasTransmissionAreasWithSignal");

    JSONArray jsonArray = obj.getJSONArray("arrayKey");
    int i = jsonArray.getInt(0);
} catch (JSONException e) {
    e.printStackTrace();
}

Java Maps 将键映射到值。作为它们的使用示例:

Map<String, Integer> map = new HashMap<String, Integer>();
map.put("string key", 1);
map.put("another key", 3);